CN113426816B

CN113426816B - A polluted site intelligent restoration system and restoration method

Info

Publication number: CN113426816B
Application number: CN202110580193.2A
Authority: CN
Inventors: 何理; 孙同; 叶威; 尹方平
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-12-13
Anticipated expiration: 2041-05-26
Also published as: CN113426816A

Abstract

本发明公开了一种污染场地智能修复***及修复方法，所述***包括实时监控子***、方案决策子***和修复子***，所述实时监控子***用于实时监测污染场地信息，并将其传输至方案决策子***，所述方案决策子***对监测到的信息进行判断，做出决策，选择相应的修复子***进行修复。本发明提供的污染场地智能修复***及修复方法，能够及时针对污染场地污染现状变化，及时调整修复策略和修复目标，提升修复效率，整个***操作简便，易于维护，可实现对污染场地的高效修复。

The invention discloses a polluted site intelligent repair system and a repair method. The system includes a real-time monitoring subsystem, a scheme decision-making subsystem and a repairing subsystem. The real-time monitoring subsystem is used for real-time monitoring of polluted site information, and its It is transmitted to the scheme decision-making subsystem, and the scheme decision-making subsystem judges the monitored information, makes a decision, and selects the corresponding restoration subsystem for restoration. The intelligent restoration system and restoration method of the polluted site provided by the present invention can timely adjust the restoration strategy and restoration target according to the change of the pollution status of the polluted field, and improve the restoration efficiency. The whole system is easy to operate and easy to maintain, and can realize efficient restoration of the polluted field .

Description

一种污染场地智能修复***及修复方法A polluted site intelligent restoration system and restoration method

技术领域technical field

本发明属于土壤(地下水)修复技术领域，具体涉及一种污染场地智能修复***及修复方法。The invention belongs to the technical field of soil (groundwater) restoration, and in particular relates to an intelligent restoration system and restoration method for polluted sites.

背景技术Background technique

土壤是人类生存与发展最重要和最基本的综合性自然资源，土壤环境状况不仅直接影响到国民经济发展和国土资源环境安全，而且关系到农产品安全和人体健康。随着我国工业化的快速发展，矿产资源的不合理开采及其冶炼排放、垃圾填埋、化工厂污染、化肥和农药的施用等原因，造成地下水和土壤污染严重，且受到污染场地复杂的水文地质条件影响，修复不彻底、二次反弹的现象时有发生。因此，高效、绿色、智能地修复土壤和地下水，实现经济、环境、社会效益的和谐统一，成为目前亟待解决的问题。Soil is the most important and basic comprehensive natural resource for human survival and development. Soil environmental conditions not only directly affect the development of the national economy and the safety of land resources and the environment, but also relate to the safety of agricultural products and human health. With the rapid development of my country's industrialization, unreasonable mining of mineral resources and its smelting discharge, landfill, chemical plant pollution, application of chemical fertilizers and pesticides and other reasons have caused serious groundwater and soil pollution, and the complex hydrogeology of the polluted site Due to the influence of conditions, the phenomenon of incomplete repair and secondary rebound occurs from time to time. Therefore, efficient, green, and intelligent restoration of soil and groundwater to achieve the harmony and unity of economic, environmental, and social benefits has become an urgent problem to be solved.

现有技术中，对污染场地的修复技术一般分为三类，分别是物理修复技术、化学修复技术和生物修复技术。物理修复技术是指通过各种物理过程将污染物从土壤中取出或分离的技术，主要包括热脱附技术、微波加热技术及蒸汽浸提技术，均属于热修复技术，多用于有机污染土壤的修复；化学修复技术主要有土壤固化/稳定化技术、淋洗技术、氧化还原技术、光催化降解技术以及电动力修复技术；生物修复技术主要包括植物修复、微生物修复、生物联合修复等技术。其中，针对地下水修复的物理技术主要包括抽出处理技术、空气注入技术、多相抽提技术、原位阻隔技术，化学技术主要包括原位化学氧化、原位化学还原技术，生物技术主要包括原位微生物注入技术。In the prior art, remediation technologies for contaminated sites are generally divided into three categories, namely physical remediation technology, chemical remediation technology and biological remediation technology. Physical remediation technology refers to the technology of removing or separating pollutants from soil through various physical processes, mainly including thermal desorption technology, microwave heating technology and steam extraction technology, all of which belong to thermal remediation technology and are mostly used for the treatment of organically polluted soil. Remediation; chemical remediation technologies mainly include soil solidification/stabilization technology, leaching technology, redox technology, photocatalytic degradation technology, and electrodynamic remediation technology; bioremediation technologies mainly include phytoremediation, microbial remediation, and bio-combined remediation. Among them, the physical technology for groundwater remediation mainly includes extraction treatment technology, air injection technology, multiphase extraction technology, and in-situ barrier technology; the chemical technology mainly includes in-situ chemical oxidation and in-situ chemical reduction technology; the biological technology mainly includes in-situ Microbial Injection Technology.

但是，由于污染场地中的污染物种类繁多，物理化学性质差异较大，特别是一些老化污染场地污染物赋存形式更加复杂，再加上复杂的水文地质条件，对修复工艺的实际效能带来了严重的挑战，单独采用上述的物理、化学和生物修复技术均无法达到较好的质量效果。例如：采用微波加热技术修复污染土壤，虽然对多种有机污染物具有很好的去除效果，但是由于土壤无法有效的吸收微波，必须添加微波吸收材料才能实现；化学淋洗技术往往修复不彻底，冲淋后土壤中仍含有不少污染物及淋洗液包裹的污染物，且仅适用于面积小、污染中的土壤治理工作；电动力修复技术虽然操作简单，但处理时间较长，难以适应实际工程需求。此外现在的污染场地修复还存在着自动化程度不高，安全风险较大的问题。However, due to the wide variety of pollutants in polluted sites and the large differences in physical and chemical properties, especially the more complex occurrence forms of pollutants in some aged polluted sites, coupled with complex hydrogeological conditions, the actual efficiency of the remediation process has been brought However, the above-mentioned physical, chemical and biological remediation technologies cannot achieve good quality results alone. For example, the use of microwave heating technology to remediate polluted soil, although it has a good removal effect on various organic pollutants, but because the soil cannot effectively absorb microwaves, it must be achieved by adding microwave absorbing materials; chemical leaching technology is often not completely repaired, After rinsing, the soil still contains a lot of pollutants and pollutants wrapped in eluent, and it is only suitable for small-scale and polluted soil remediation work; although the electrodynamic remediation technology is simple to operate, it takes a long time to process and is difficult to adapt actual engineering needs. In addition, the current restoration of contaminated sites still has the problems of low automation and high safety risks.

综上，现有技术中常用的修复方法存在治理周期长、治理费用高、治理效果差等问题，有必要提供一种治理周期短、成本低、治理效果显著且能够灵活调整的污染场地智能修复***。In summary, the restoration methods commonly used in the prior art have problems such as long treatment period, high treatment cost, and poor treatment effect. It is necessary to provide an intelligent restoration of polluted sites with short treatment period, low cost, significant treatment effect and flexible adjustment. system.

发明内容Contents of the invention

为了克服上述问题，本发明提供了一种污染场地智能修复***及修复方法，通过实时检测污染场地的实际情况，自动判断当前污染场地所处状态，并做出决策，选择最优的修复方式，能够对污染场地进行精准修复，且节省资源能耗、修复效率高、效果好，从而完成本发明。In order to overcome the above problems, the present invention provides a polluted site intelligent restoration system and restoration method, which can automatically judge the current state of the polluted site by detecting the actual situation of the polluted site in real time, and make a decision to select the optimal restoration method. The method can carry out precise repair on the polluted site, save resources and energy consumption, have high repair efficiency and good effect, thus completing the present invention.

具体来说，本发明的目的在于提供以下方面：Specifically, the object of the present invention is to provide the following aspects:

第一方面，提供了一种污染场地智能修复***，所述***包括实时监控子***、方案决策子***和修复子***，In the first aspect, a contaminated site intelligent restoration system is provided, the system includes a real-time monitoring subsystem, a scheme decision-making subsystem and a restoration subsystem,

其中，所述实时监控子***用于实时监测污染场地信息，并将其传输至方案决策子***；Wherein, the real-time monitoring subsystem is used for real-time monitoring of contaminated site information, and transmits it to the scheme decision-making subsystem;

所述方案决策子***对监测到的信息进行判断，做出决策，选择相应的修复子***进行修复。The scheme decision-making subsystem judges the monitored information, makes a decision, and selects a corresponding repair subsystem for repair.

第二方面，提供了一种污染场地修复方法，优选采用上述污染场地智能修复***进行，所述方法包括以下步骤：In the second aspect, a method for remediating a contaminated site is provided, preferably performed using the above-mentioned intelligent remediation system for a contaminated site, and the method includes the following steps:

步骤1，实时获取待修复污染场地的污染信息；Step 1, obtain the pollution information of the contaminated site to be repaired in real time;

步骤2，根据污染信息，选择适合的修复方式进行修复；Step 2, according to the pollution information, select a suitable repair method for repair;

步骤3，对修复后的场地进行修复效果评价，根据评价结果进行后续处理。Step 3: Evaluate the restoration effect of the restored site, and carry out follow-up processing according to the evaluation results.

本发明所具有的有益效果包括：The beneficial effects that the present invention has include:

(1)本发明提供的污染场地智能修复***，通过实时检测场地污染区域的实际情况，自动判断当前污染场地所处状态，并做出决策，选择最优的修复方式，能够对污染场地进行精准修复，且节省资源能耗、修复效率高、效果好；(1) The polluted site intelligent restoration system provided by the present invention can automatically judge the current state of the polluted site by detecting the actual situation of the polluted area in real time, and make a decision to select the optimal restoration method, so that the polluted site can be accurately repaired. Repair, and save resources and energy consumption, high repair efficiency, good effect;

(2)本发明提供的污染场地智能修复***，联合使用多种修复方式，能够因地制宜，灵活修复；(2) The intelligent restoration system for contaminated sites provided by the present invention uses multiple restoration methods in combination, which can be flexibly repaired according to local conditions;

(3)本发明提供的污染场地修复方法，操作简单，条件易控，修复周期短，效果好，适合规模化应用。(3) The contaminated site repair method provided by the present invention has simple operation, easy control of conditions, short repair period, good effect, and is suitable for large-scale application.

附图说明Description of drawings

图1示意根据本发明一种优选实施方式的污染场地智能修复***的架构图。Fig. 1 is a schematic diagram of an intelligent restoration system for contaminated sites according to a preferred embodiment of the present invention.

具体实施方式detailed description

下面通过优选实施方式和实施例对本发明进一步详细说明。通过这些说明，本发明的特点和优点将变得更为清楚明确。The present invention will be further described in detail below through preferred embodiments and examples. Through these descriptions, the features and advantages of the present invention will become more apparent.

在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

本发明提供了一种污染场地智能修复***，如图1所示，所述***包括实时监控子***、方案决策子***和修复子***，其中，所述实时监控子***用于实时监测污染场地信息，并将其传输至方案决策子***，所述方案决策子***对监测到的信息进行判断，做出决策，选择相应的修复子***进行修复。The present invention provides an intelligent restoration system for contaminated sites. As shown in Figure 1, the system includes a real-time monitoring subsystem, a scheme decision-making subsystem and a repairing subsystem, wherein the real-time monitoring subsystem is used for real-time monitoring of contaminated sites information, and transmit it to the solution decision-making subsystem, the solution decision-making subsystem judges the monitored information, makes a decision, and selects the corresponding repair subsystem for repair.

根据本发明一种优选的实施方式，所述实时监控子***监测到的污染场地信息包括环境要素和设备参数，其中，According to a preferred embodiment of the present invention, the polluted site information monitored by the real-time monitoring subsystem includes environmental elements and equipment parameters, wherein,

所述环境要素包括重金属的种类及含量、有机污染物的种类及含量、监测时间、污染羽分布范围、地下水水位、土壤含水率、氧化还原电位和pH值变化；The environmental elements include the type and content of heavy metals, the type and content of organic pollutants, monitoring time, distribution range of pollution plume, groundwater level, soil moisture content, oxidation-reduction potential and pH value changes;

所述设备参数包括各反应器温度、各管路流量、压力、电压和电流。The equipment parameters include the temperature of each reactor, the flow rate of each pipeline, pressure, voltage and current.

其中，上述污染场地信息的检测设备包括土壤重金属检测仪、挥发性有机物检测仪、土壤水分传感器、土壤酸度计、氧化还原电位仪、地下水位监测仪、压力计和电磁流量仪，以分别检测土壤重金属的种类及含量、有机污染物的种类及含量、土壤含水率、pH、地下水水位、水温以及各管路的流量和压力。Among them, the detection equipment for the above-mentioned contaminated site information includes soil heavy metal detectors, volatile organic compound detectors, soil moisture sensors, soil acidity meters, redox potential meters, groundwater level monitors, pressure gauges and electromagnetic flowmeters to detect soil The type and content of heavy metals, the type and content of organic pollutants, soil moisture content, pH, groundwater level, water temperature, and the flow and pressure of each pipeline.

在本发明中，对上述检测设备的型号不做特别限定，可以采用现有技术中常用的具有相应功能的器件。In the present invention, there is no special limitation on the type of the above detection equipment, and devices with corresponding functions commonly used in the prior art can be used.

在进一步优选的实施方式中，所述实时监控子***获取污染场地信息的频率根据修复要求进行调整，In a further preferred embodiment, the frequency of acquiring contaminated site information by the real-time monitoring subsystem is adjusted according to remediation requirements,

优选地，对设备参数的监测为实时监测，监测频率优选为3次/min；Preferably, the monitoring of equipment parameters is real-time monitoring, and the monitoring frequency is preferably 3 times/min;

对环境要素(如污染物含量、地下水水位、pH)的监测为根据修复进展进行动态调节。The monitoring of environmental elements (such as pollutant content, groundwater level, pH) is dynamically adjusted according to the progress of restoration.

在本发明中，优选地，所述污染场地智能修复***还包括控制子***，该智能修复***通过控制子***进行自反馈设置及动态联动，当修复子***运行时，监测频率达到仪器额定频率运行，其他时段则按照修复需求每小时或者每天一次进行监测。In the present invention, preferably, the contaminated site intelligent restoration system further includes a control subsystem, the intelligent restoration system performs self-feedback setting and dynamic linkage through the control subsystem, and when the restoration subsystem is running, the monitoring frequency reaches the rated frequency of the instrument In other periods of time, it is monitored hourly or once a day according to the repair demand.

其中，所述控制子***可以为中央处理器。Wherein, the control subsystem may be a central processing unit.

在本发明中，优选所述实时监控子***还对修复子***修复后的污染场地信息进行实时监测。In the present invention, preferably, the real-time monitoring subsystem also performs real-time monitoring on the information of the contaminated site after repairing by the repairing subsystem.

根据本发明一种优选的实施方式，所述方案决策子***包括信息接收模块、信息处理模块、决策控制模块和信息输出模块，其中，According to a preferred embodiment of the present invention, the scheme decision-making subsystem includes an information receiving module, an information processing module, a decision-making control module and an information output module, wherein,

信息接收模块用于接收实时监控子***传输的监测信息；The information receiving module is used to receive the monitoring information transmitted by the real-time monitoring subsystem;

信息处理模块对接收的监测信息进行存储和处理，获得判定结果；The information processing module stores and processes the received monitoring information to obtain the judgment result;

决策控制模块根据判定结果做出决策；The decision control module makes a decision according to the judgment result;

信息输出模块将决策控制模块做出的决策传输至修复子***，以进行修复。The information output module transmits the decision made by the decision control module to the repair subsystem for repair.

在进一步优选的实施方式中，所述信息处理模块对接收的监测信息进行的处理包括降噪处理以及将监测信息的数据与污染场地分级标准进行比较，以获得判定结果；In a further preferred embodiment, the processing of the received monitoring information by the information processing module includes noise reduction processing and comparing the data of the monitoring information with the grading standard of the polluted site to obtain the judgment result;

所述决策控制模块根据判定结果，进行修复方式选择或发出中止指令。The decision control module selects a repair mode or issues a stop instruction according to the judgment result.

根据本发明一种优选的实施方式，在信息处理模块中，预先设置有污染场地分级标准，According to a preferred embodiment of the present invention, in the information processing module, the pollution site classification standard is preset,

所述污染场地分级标准包括土壤污染分级标准和地下水污染分级标准，The grading standards for polluted sites include soil pollution grading standards and groundwater pollution grading standards,

优选地，所述土壤污染分级标准为：Preferably, the soil pollution grading standard is:

当污染场地土壤中存在至少一种指标种类有机污染物含量或重金属污染物含量高于《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》中规定的风险筛选值但同时低于规定的风险管制值时，污染等级为轻度污染；When the content of at least one index type of organic pollutants or heavy metal pollutants in the soil of the polluted site is higher than the risk screening value specified in the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but at the same time When it is lower than the specified risk control value, the pollution level is light pollution;

当污染场地土壤中存在至少一项重金属污染物指标含量超过《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》风险管制值限值但是低于或等于管制值的5倍，且所有种类有机污染物含量低于或等于风险管制值限值时，污染等级为重金属污染；When there is at least one heavy metal pollutant index content in the soil of the polluted site exceeding the risk control value limit of the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but less than or equal to 5 times the control value , and when the content of all types of organic pollutants is lower than or equal to the risk control value limit, the pollution level is heavy metal pollution;

当污染场地土壤中存在至少一种有机污染物含量超过《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》风险管制值但是低于或等于限值的10倍，且所有指标种类重金属污染物含量低于或等于风险管制值限值时，污染等级为有机物污染；When the content of at least one organic pollutant in the soil of the contaminated site exceeds the risk control value of the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but is less than or equal to 10 times the limit value, and all When the index type heavy metal pollutant content is lower than or equal to the risk control value limit, the pollution level is organic pollution;

当污染场地土壤中重金属污染物含量超过《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》风险管制值限值但是低于限值的5倍，且有机污染物含量超过风险管制值限值但是低于限值的10倍时，污染等级为综合污染；When the content of heavy metal pollutants in the soil of the polluted site exceeds the risk control value limit of the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but is less than 5 times the limit, and the organic pollutant content exceeds When the risk control value limit is lower than 10 times the limit value, the pollution level is comprehensive pollution;

当污染场地土壤中重金属污染物含量超过《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》风险管制值限值的5倍或有机污染物含量超过限值的10倍时，污染等级为重度污染；When the content of heavy metal pollutants in the soil of the polluted site exceeds 5 times the risk control value limit of the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" or the content of organic pollutants exceeds 10 times the limit , the pollution level is severe pollution;

所述地下水污染分级标准为：The classification standards for groundwater pollution are:

当污染场地地下水中存在有机污染物或重金属污染物含量指标超过《地下水质量标准(GB/T 14818-2017)》IV类水标准但是低于标准值1.5倍时，污染等级为轻度污染；When the content index of organic pollutants or heavy metal pollutants in the groundwater of the polluted site exceeds the standard for Class IV water in the "Groundwater Quality Standard (GB/T 14818-2017)" but is 1.5 times lower than the standard value, the pollution level is light pollution;

当污染场地地下水中至少存在一种重金属污染物含量超过《地下水质量标准(GB/T 14818-2017)》IV类水标准限值1.5倍但是低于或等于限值的3倍，且所有种类有机污染物含量低于或等于IV类水标准限值1.5倍时，污染等级为重金属污染；When there is at least one heavy metal pollutant in the groundwater of the polluted site, the content of which is more than 1.5 times but less than or equal to 3 times the limit value of Class IV water in the "Groundwater Quality Standard (GB/T 14818-2017)", and all types of organic pollutants When the pollutant content is lower than or equal to 1.5 times the limit value of Class IV water standard, the pollution level is heavy metal pollution;

当污染场地地下水中至少存在一种有机污染物含量超过《地下水质量标准(GB/T14818-2017)》IV类水标准限值1.5倍但是低于或等于限值的10倍，且所有种类重金属污染物含量低于或等于IV类水标准限值1.5倍时，污染等级为有机物污染；When the content of at least one organic pollutant in the groundwater of the polluted site exceeds 1.5 times the limit value of Class IV water in the "Groundwater Quality Standard (GB/T14818-2017)" but is less than or equal to 10 times the limit value, and all types of heavy metal pollution When the content of pollutants is lower than or equal to 1.5 times the standard limit value of Class IV water, the pollution level is organic pollution;

当污染场地地下水中至少存在一种重金属污染物含量超过《地下水质量标准(GB/T 14818-2017)》IV类水标准限值1.5倍但是低于限值的3倍，且至少一种有机污染物含量超过IV类水标准限值1.5倍但是低于限值的10倍时，污染等级为综合污染；When there is at least one heavy metal pollutant in the groundwater of the polluted site, the content of which is more than 1.5 times but less than 3 times the limit value of Class IV water standard in the "Groundwater Quality Standard (GB/T 14818-2017)", and at least one organic pollution When the content of pollutants exceeds 1.5 times the standard limit value of Class IV water but is lower than 10 times the limit value, the pollution level is comprehensive pollution;

当污染场地地下水中存在一种重金属污染物含量超过《地下水质量标准(GB/T14818-2017)》IV类水标准限值的3倍或存在有机污染物含量超过限值的10倍时，污染等级为重度污染。When the content of a heavy metal pollutant in the groundwater of the polluted site exceeds 3 times the limit value of Class IV water in the "Groundwater Quality Standard (GB/T14818-2017)" or the content of organic pollutants exceeds 10 times the limit value, the pollution level for heavy pollution.

更优选地，所述土壤污染分级标准为：More preferably, the soil pollution grading standard is:

当污染场地土壤中：苯、三氯乙烯、石油烃、氯苯、铬、镉、铅、汞中至少一种的含量属于下述范围时，污染等级为轻度污染：4mg/kg≤苯的含量≤40mg/kg，2.8mg/kg≤三氯乙烯的含量≤20mg/kg，4500mg/kg≤石油烃的含量≤9000mg/kg，270mg/kg≤氯苯的含量≤1000mg/kg；5.7mg/kg≤铬的含量≤78mg/kg，65mg/kg≤镉的含量≤172mg/kg，800mg/kg≤铅的含量≤2500mg/kg，38mg/kg≤汞的含量≤82mg/kg；When the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, chlorobenzene, chromium, cadmium, lead, and mercury in the soil of the polluted site falls within the following range, the pollution level is light pollution: 4mg/kg≤ benzene Content≤40mg/kg, 2.8mg/kg≤Trichlorethylene content≤20mg/kg, 4500mg/kg≤Petroleum hydrocarbon content≤9000mg/kg, 270mg/kg≤Chlorobenzene content≤1000mg/kg; 5.7mg/kg kg≤chromium content≤78mg/kg, 65mg/kg≤cadmium content≤172mg/kg, 800mg/kg≤lead content≤2500mg/kg, 38mg/kg≤mercury content≤82mg/kg;

当污染场地土壤中：铬、镉、铅、汞中至少一种的含量属于下述范围：78mg/kg≤铬的含量≤390mg/kg，172mg/kg≤镉的含量≤860mg/kg，2500mg/kg≤铅的含量≤12500mg/kg，82mg/kg≤汞的含量≤410mg/kg；且苯的含量≤40mg/kg，三氯乙烯的含量≤20mg/kg，石油烃的含量≤9000mg/kg，氯苯的含量≤1000mg/kg时，污染等级为重金属污染；When the soil of the polluted site: the content of at least one of chromium, cadmium, lead and mercury falls within the following range: 78mg/kg≤chromium content≤390mg/kg, 172mg/kg≤cadmium content≤860mg/kg, 2500mg/kg kg≤lead content≤12500mg/kg, 82mg/kg≤mercury content≤410mg/kg; and benzene content≤40mg/kg, trichlorethylene content≤20mg/kg, petroleum hydrocarbon content≤9000mg/kg, When the content of chlorobenzene is ≤1000mg/kg, the pollution level is heavy metal pollution;

当污染场地土壤中：铬的含量≤78mg/kg，镉的含量≤172mg/kg，铅的含量≤2500mg/kg，汞的含量≤82mg/kg；且苯、三氯乙烯、石油烃、氯苯中至少一种的含量属于下述范围时，污染等级为有机物污染：40mg/kg≤苯的含量≤400mg/kg，20mg/kg≤三氯乙烯的含量≤200mg/kg，9000mg/kg≤石油烃的含量≤90000mg/kg，1000mg/kg氯苯的含量≤10000mg/kg；In the soil of the polluted site: the content of chromium ≤ 78mg/kg, the content of cadmium ≤ 172mg/kg, the content of lead ≤ 2500mg/kg, the content of mercury ≤ 82mg/kg; and benzene, trichloroethylene, petroleum hydrocarbons, chlorobenzene When the content of at least one of them falls within the following range, the pollution level is organic pollution: 40mg/kg≤benzene content≤400mg/kg, 20mg/kg≤trichlorethylene content≤200mg/kg, 9000mg/kg≤petroleum hydrocarbon The content of chlorobenzene ≤ 90000mg/kg, the content of 1000mg/kg chlorobenzene ≤ 10000mg/kg;

当污染场地土壤中：苯、三氯乙烯、石油烃、氯苯中至少一种的含量属于下述范围：40mg/kg≤苯的含量≤400mg/kg，20mg/kg≤三氯乙烯的含量≤200mg/kg，9000mg/kg≤石油烃的含量≤90000mg/kg，1000mg/kg≤氯苯的含量≤10000mg/kg；且铬、镉、铅、汞中至少一种的含量属于下述范围：78mg/kg≤铬的含量≤390mg/kg，172mg/kg≤镉的含量≤860mg/kg，2500mg/kg≤铅的含量≤12500mg/kg，82mg/kg≤汞的含量≤410mg/kg，污染等级为综合污染；In the soil of the polluted site: the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, and chlorobenzene falls within the following range: 40mg/kg≤benzene content≤400mg/kg, 20mg/kg≤trichlorethylene content≤ 200mg/kg, 9000mg/kg≤petroleum hydrocarbon content≤90000mg/kg, 1000mg/kg≤chlorobenzene content≤10000mg/kg; and the content of at least one of chromium, cadmium, lead and mercury falls within the following range: 78mg /kg≤chromium content≤390mg/kg, 172mg/kg≤cadmium content≤860mg/kg, 2500mg/kg≤lead content≤12500mg/kg, 82mg/kg≤mercury content≤410mg/kg, the pollution level is Comprehensive pollution;

当污染场地土壤中：苯、三氯乙烯、石油烃、氯苯、铬、镉、铅、汞中至少一种的含量属于下述范围时，污染等级为重度污染：400mg/kg≤苯的含量，200mg/kg≤三氯乙烯的含量，90000mg/kg≤石油烃的含量，10000mg/kg≤氯苯的含量，390mg/kg≤铬的含量，860mg/kg≤镉的含量，12500mg/kg≤铅的含量，410mg/kg≤汞的含量；When the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, chlorobenzene, chromium, cadmium, lead, and mercury in the soil of the polluted site falls within the following range, the pollution level is severe pollution: 400mg/kg≤benzene content , 200mg/kg≤trichlorethylene content, 90000mg/kg≤petroleum hydrocarbon content, 10000mg/kg≤chlorobenzene content, 390mg/kg≤chromium content, 860mg/kg≤cadmium content, 12500mg/kg≤lead content, 410mg/kg≤mercury content;

当污染场地地下水中：苯、三氯乙烯、石油烃、氯苯、铬、镉、铅、汞中至少一种的含量属于下述范围时，污染等级为轻度污染：120μg/L≤苯的含量≤180μg/L，300μg/L≤三氯甲烷的含量≤450μg/L，1400μg/L≤甲苯的含量≤2100μg/L，50μg/L≤四氯甲烷的含量≤75μg/L；0.002mg/L≤汞的含量≤0.003mg/L，0.1mg/L≤铬的含量≤0.15mg/L，0.1mg/L≤铅的含量≤0.15mg/L，0.01mg/L≤镉的含量≤0.015mg/L；When the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, chlorobenzene, chromium, cadmium, lead, and mercury in the groundwater of the polluted site falls within the following range, the pollution level is light pollution: 120μg/L≤ benzene Content≤180μg/L, 300μg/L≤chloroform content≤450μg/L, 1400μg/L≤toluene content≤2100μg/L, 50μg/L≤tetrachloromethane content≤75μg/L; 0.002mg/L ≤ Mercury content ≤ 0.003mg/L, 0.1mg/L ≤ Chromium content ≤ 0.15mg/L, 0.1mg/L ≤ Lead content ≤ 0.15mg/L, 0.01mg/L ≤ Cadmium content ≤ 0.015mg/L L;

当污染场地地下水中：铬、镉、铅、汞中至少一种的含量属于下述范围：0.003mg/L≤汞的含量≤0.006mg/L，0.15mg/L≤铬的含量≤0.3mg/L，0.15mg/L≤铅的含量≤0.30mg/L，0.015mg/L≤镉的含量≤0.030mg/L；且苯的含量≤180μg/L，三氯甲烷的含量≤450μg/L，甲苯的含量≤2100μg/L，四氯甲烷的含量≤75μg/L时，污染等级为重金属污染；When the groundwater of the polluted site: the content of at least one of chromium, cadmium, lead, and mercury falls within the following range: 0.003mg/L≤mercury content≤0.006mg/L, 0.15mg/L≤chromium content≤0.3mg/L L, 0.15mg/L≤lead content≤0.30mg/L, 0.015mg/L≤cadmium content≤0.030mg/L; and benzene content≤180μg/L, chloroform content≤450μg/L, toluene When the content of tetrachloromethane is ≤2100μg/L and the content of tetrachloromethane is ≤75μg/L, the pollution level is heavy metal pollution;

当污染场地地下水中：苯、三氯乙烯、石油烃、氯苯中至少一种的含量属于下述范围：180μg/L≤苯的含量≤1200μg/L，450μg/L≤三氯甲烷的含量≤3000μg/L，2100μg/L≤甲苯的含量≤14mg/L，75μg/L≤四氯甲烷的含量≤500μg/L；且汞的含量≤0.003mg/L，铬的含量≤0.15mg/L，铅的含量≤0.15mg/L，镉的含量≤0.015mg/L时，污染等级为有机物污染；When the groundwater of the polluted site: the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, and chlorobenzene falls within the following range: 180μg/L≤benzene content≤1200μg/L, 450μg/L≤chloroform content≤ 3000μg/L, 2100μg/L≤toluene content≤14mg/L, 75μg/L≤tetrachloromethane content≤500μg/L; and mercury content≤0.003mg/L, chromium content≤0.15mg/L, lead When the content of cadmium is ≤0.15mg/L and the content of cadmium is ≤0.015mg/L, the pollution level is organic pollution;

当污染场地地下水中：苯、三氯乙烯、石油烃、氯苯中至少一种的含量属于下述范围：180μg/L≤苯的含量≤1200μg/L，450μg/L≤三氯甲烷的含量≤3000μg/L，2100μg/L≤甲苯的含量≤14mg/L，75μg/L≤四氯甲烷的含量≤500μg/L；且铬、镉、铅、汞中至少一种的含量属于下述范围：0.003mg/L≤汞的含量≤0.006mg/L，0.15mg/L≤铬的含量≤0.3mg/L，0.15mg/L≤铅的含量≤0.30mg/L，0.015mg/L≤镉的含量≤0.030mg/L，污染等级为综合污染；When the groundwater of the polluted site: the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, and chlorobenzene falls within the following range: 180μg/L≤benzene content≤1200μg/L, 450μg/L≤chloroform content≤ 3000μg/L, 2100μg/L≤toluene content≤14mg/L, 75μg/L≤tetrachloromethane content≤500μg/L; and the content of at least one of chromium, cadmium, lead and mercury falls within the following range: 0.003 mg/L≤mercury content≤0.006mg/L, 0.15mg/L≤chromium content≤0.3mg/L, 0.15mg/L≤lead content≤0.30mg/L, 0.015mg/L≤cadmium content≤ 0.030mg/L, the pollution level is comprehensive pollution;

当污染场地地下水中：苯、三氯乙烯、石油烃、氯苯、铬、镉、铅、汞中至少一种的含量属于下述范围时，污染等级为重度污染：1200μg/L≤苯的含量，3000μg/L≤三氯甲烷的含量，14mg/L≤甲苯的含量，500μg/L≤四氯甲烷的含量，或0.006mg/L≤汞的含量，0.3mg/L≤铬的含量，0.030mg/L≤镉的含量，0.30mg/L≤铅的含量。When the content of at least one of benzene, trichlorethylene, petroleum hydrocarbons, chlorobenzene, chromium, cadmium, lead, and mercury in the groundwater of the polluted site falls within the following range, the pollution level is severe pollution: 1200μg/L≤benzene content , 3000μg/L≤chloroform content, 14mg/L≤toluene content, 500μg/L≤tetrachloromethane content, or 0.006mg/L≤mercury content, 0.3mg/L≤chromium content, 0.030mg /L≤cadmium content, 0.30mg/L≤lead content.

在进一步优选的实施方式中，在决策控制模块中，预先设置有修复方式选择标准，以根据判定结果选择相应的修复方式，其中，所述修复方式选择标准包括土壤修复方式选择标准和地下水修复方式选择标准，其中，所述土壤修复方式选择标准为：In a further preferred embodiment, in the decision-making control module, the restoration method selection standard is preset, so as to select the corresponding restoration method according to the judgment result, wherein the restoration method selection standard includes the soil restoration method selection standard and the groundwater restoration method Selection criteria, wherein, the selection criteria of the soil restoration method are:

当污染场地的土壤污染级别为轻度污染时，不需要采用特殊修复方式，通过实时监控子***进行实时监控，采用自然衰减的方式，实现污染修复；When the soil pollution level of the polluted site is lightly polluted, no special remediation method is required, real-time monitoring is carried out through the real-time monitoring subsystem, and the natural attenuation method is adopted to realize pollution remediation;

当污染场地的土壤污染级别为重金属污染时，采用电动力修复方式；When the soil pollution level of the polluted site is heavy metal pollution, electrodynamic restoration is adopted;

当污染场地的土壤污染级别为有机物污染时，采用热修复方式；When the soil pollution level of the polluted site is organic pollution, the thermal restoration method shall be adopted;

当污染场地的土壤污染级别为综合污染时，先采用热修复方式将有机污染物去除，再采用电动力修复方式将重金属污染物去除；When the soil pollution level of the polluted site is comprehensive pollution, the organic pollutants are removed first by thermal restoration, and then the heavy metal pollutants are removed by electrodynamic restoration;

所述地下水修复方式选择标准为：The selection criteria for the groundwater remediation methods are:

当污染场地的地下水污染级别为轻度污染时，不需要采用特殊修复方式，通过实时监控子***进行实时监控，采用自然衰减的方式，实现污染修复；When the groundwater pollution level of the polluted site is slightly polluted, no special remediation method is required, real-time monitoring is carried out through the real-time monitoring subsystem, and the natural attenuation method is adopted to realize pollution remediation;

当污染场地的地下水污染级别为重金属污染时，采用液相抽提方式；When the groundwater pollution level of the polluted site is heavy metal pollution, the liquid phase extraction method is adopted;

当污染场地的地下水污染级别为有机物污染时，采用多相抽提和原位化学氧化方式修复；When the groundwater pollution level of the contaminated site is organic pollution, multiphase extraction and in-situ chemical oxidation are used for remediation;

当污染场地的地下水污染级别为综合污染时，采用多相抽提和原位化学氧化方式修复。When the groundwater pollution level of the polluted site is comprehensive pollution, multiphase extraction and in-situ chemical oxidation are used for remediation.

其中，所述液相抽提方式采用的是多相抽提中的液相抽提功能。Wherein, the liquid phase extraction method adopts the liquid phase extraction function in the multiphase extraction.

优选地，当污染场地的土壤和地下水污染级别均为重度污染时，对于污染场地上层土壤，采用化学淋洗修复方式；对于污染场地地下水，采用抽提方式和原位化学氧化方式进行修复。Preferably, when the soil and groundwater pollution levels of the polluted site are both severely polluted, the upper soil of the polluted site is repaired by chemical leaching; the groundwater of the polluted site is repaired by extraction and in-situ chemical oxidation.

更优选地，采用多相抽提模块，将易于处理、流动性强的污染物进行抽提，然后对于剩余残留污染物继续采用原位化学氧化进行精准修复。More preferably, a multi-phase extraction module is used to extract the pollutants that are easy to handle and have strong fluidity, and then continue to use in-situ chemical oxidation for precise repair of the remaining residual pollutants.

在本发明中，当污染场地的污染级别为轻度污染时，如果污染块地短期内有开发需要，可以启动修复子***进行强化。In the present invention, when the pollution level of the polluted site is lightly polluted, if the polluted plot needs to be developed in a short time, the restoration subsystem can be activated for strengthening.

本发明人经过大量、反复的研究发现，采用上述标准对污染场地进行分级并选择合适的修复方式，能够为污染场地选择精准的修复方式，治理周期最短、成本最低且治理效果最佳。After extensive and repeated research, the inventors found that by using the above criteria to classify contaminated sites and select appropriate repair methods, an accurate repair method can be selected for contaminated sites, with the shortest treatment cycle, the lowest cost and the best treatment effect.

其中，决策控制模块按照上述修复方式选择标准做出决策后，经由信息输出模块将决策传输至修复子***，修复子***按照决策的结果按照相应的修复方式进行污染场地修复。Among them, after the decision-making control module makes a decision according to the above-mentioned remediation method selection criteria, the decision is transmitted to the remediation subsystem through the information output module, and the remediation subsystem performs the remediation of the contaminated site according to the corresponding remediation method according to the result of the decision.

根据本发明一种优选的实施方式，所述修复子***包括化学淋洗模块、热修复模块、电动力修复模块、多相抽提模块和三废处理模块，以分别实现化学淋洗修复方式、热修复方式、电动力修复方式、易流动相多相抽提以及废气、废液、废渣的处理和处置。According to a preferred embodiment of the present invention, the restoration subsystem includes a chemical rinsing module, a thermal restoration module, an electrodynamic restoration module, a multiphase extraction Restoration method, electrodynamic restoration method, multiphase extraction of easy mobile phase, and treatment and disposal of waste gas, waste liquid and waste residue.

在本发明中，所述化学淋洗修复方式是指采用经济性较好的化学淋洗技术，将土壤中部分污染物质洗刷至淋洗液中，再利用真空抽吸技术将淋洗液抽出至地表进行处理。In the present invention, the chemical leaching repair method refers to the use of economical chemical leaching technology to wash part of the pollutants in the soil into the eluent, and then use vacuum suction technology to extract the eluent to the The surface is processed.

优选地，所述化学淋洗模块包括四个部分，分别为破碎单元、药剂注入单元、搅拌单元和废液抽提回收单元，以分别实现地质体增渗、修复药剂的注入、分散以及废液的回收。Preferably, the chemical rinsing module includes four parts, which are respectively a crushing unit, a chemical injection unit, a stirring unit and a waste liquid extraction and recovery unit, so as to respectively realize geological body permeability enhancement, restoration chemical injection, dispersion and waste liquid recovery. recycling.

热修复方式是指通过加热井对污染区土壤进行加热，将污染土壤温度提高至目标污染物沸点以上，利用控制***温度和污染土壤停留时间等手段，以气化挥发的方式促使目标污染物有选择地与土壤颗粒相分离，然后利用抽提井将含有目标污染物的气体进行冷凝、收集至地表进行氧化等一系列处理，最终达标后完成排放。The thermal remediation method refers to heating the soil in the polluted area through the heating well, raising the temperature of the polluted soil to above the boiling point of the target pollutant, and using means such as controlling the temperature of the system and the residence time of the polluted soil to promote the effective removal of the target pollutant by means of gasification and volatilization. Selectively separate from the soil particles, and then use the extraction well to condense the gas containing the target pollutants, collect it to the surface for oxidation and a series of treatments, and finally complete the discharge after reaching the standard.

优选地，所述热修复模块包括加热装置和收集装置，所述加热装置将受热的空气输送至污染区域使有机污染物脱附，所述收集装置对脱附的有机污染物进行抽吸，并最终送至地面三废处理装置进行处理。Preferably, the thermal repair module includes a heating device and a collecting device, the heating device sends heated air to the polluted area to desorb the organic pollutants, the collecting device sucks the desorbed organic pollutants, and Finally, it is sent to the ground three waste treatment device for treatment.

所述热修复模块还包括温度传感器和电磁流量仪，其设置在热修复模块的各管路和反应区。The heat recovery module also includes a temperature sensor and an electromagnetic flowmeter, which are arranged in each pipeline and reaction area of the heat recovery module.

更优选地，本发明中设置热修复的温度为100～400℃。More preferably, in the present invention, the temperature for thermal repair is set to be 100-400°C.

电动力修复方式是指在污染土壤区域***电极，施加直流电后形成电场，土壤中的污染物在直流电场作用下定向迁移，富集在电极区域，再通过其他方法(电镀、沉淀/共沉淀、抽出、离子交换树脂等)进行集中处理。The electrodynamic repair method refers to inserting an electrode in the polluted soil area, and forming an electric field after applying a direct current. Extraction, ion exchange resin, etc.) for centralized treatment.

优选地，所述电动力修复模块包括电极液储存箱、电极液阀门、电极室、电极、电极液流量计、加液泵阀门、加液泵、吸附层和外接直流电源。Preferably, the electrodynamic repair module includes an electrode solution storage tank, an electrode solution valve, an electrode chamber, an electrode, an electrode solution flow meter, a filling pump valve, a filling pump, an adsorption layer and an external DC power supply.

更优选地，本发明中设置电动力修复模块的电压梯度为1.0～2.0V/cm，运行时间为360h。More preferably, in the present invention, the voltage gradient of the electrodynamic restoration module is set to be 1.0-2.0 V/cm, and the running time is 360 hours.

多相抽提技术(Multi-phase Extractio，MPE)是抽出-处理技术和土壤气相抽提技术的耦合升级，可以用于同时污染土壤和地下水的修复。多相抽提技术是通过抽液泵将污染场地液相污染物及受污染地下水抽出，降低地下水的同时通过真空泵/引风机产生负压将污染土壤(包气带)中的受污染气体抽出，再将抽出后的气相、水相和有机液相混合物通过多相分离***分离后分可进行处理。Multi-phase extraction technology (Multi-phase Extractio, MPE) is a coupling upgrade of extraction-treatment technology and soil gas phase extraction technology, which can be used for the remediation of contaminated soil and groundwater at the same time. The multi-phase extraction technology is to pump out the liquid phase pollutants and polluted groundwater in the polluted site through the pumping pump, and at the same time reduce the groundwater and pump out the polluted gas in the polluted soil (vadose zone) through the negative pressure generated by the vacuum pump/induced fan, Then the extracted gas phase, water phase and organic liquid phase mixture are separated by a multi-phase separation system and can be processed.

优选地，所述多相抽提模块包括抽提井、输送管道、真空泵和废水废气处理装备，其主要针对土壤地下水污染源中的易于流动的污染相进行抽提预处理，抽提方式可以采用单泵单相抽提或者多泵多相抽提方式。Preferably, the multi-phase extraction module includes extraction wells, delivery pipelines, vacuum pumps and waste water and waste gas treatment equipment, which mainly perform extraction and pretreatment on the easy-to-flow pollution phases in soil and groundwater pollution sources, and the extraction method can be single Pump single-phase extraction or multi-pump multi-phase extraction.

在本发明中，不对化学淋洗修复模块、热修复模块、电动力修复模块、多相抽提模块以及三废处理模块采用的具体设备进行特别限定，可以采用本领域常用的设备或仪器，只要能够实现上述的化学淋洗修复、热修复、电动力修复、地下水的多相抽提以及三废处理功能即可。In the present invention, the specific equipment used in the chemical leaching repair module, thermal repair module, electrodynamic repair module, multiphase extraction module and three waste treatment module is not particularly limited, and equipment or instruments commonly used in the field can be used, as long as they can It is enough to realize the above-mentioned functions of chemical leaching restoration, thermal restoration, electrodynamic restoration, multiphase extraction of groundwater, and three wastes treatment.

在进一步优选的实施方式中，所述化学淋洗模块、热修复模块、电动力修复模块和多相抽提模块，四者分别独立设置，以保证工作时互不影响。In a further preferred embodiment, the chemical rinsing module, the thermal repair module, the electrodynamic repair module and the multiphase extraction module are set independently to ensure that they do not affect each other during work.

优选地，也可根据修复需求开启多种模块的并行处理，然后最终通过三废处理模块进行综合处理。Preferably, the parallel processing of various modules can also be started according to the restoration requirements, and then comprehensive treatment is finally carried out through the three waste treatment modules.

根据本发明一种优选的实施方式，修复子***修复后的污染场地信息由实时监控子***监测获得，并传递至方案决策子***。According to a preferred embodiment of the present invention, the information of the contaminated site after restoration by the restoration subsystem is monitored and obtained by the real-time monitoring subsystem, and transmitted to the scheme decision-making subsystem.

其中，方案决策子***中的信息处理模块对修复后的污染场地信息进行判定，确认判定结果是否达到修复完成标准，Among them, the information processing module in the scheme decision-making subsystem judges the information of the contaminated site after remediation, and confirms whether the judgment result meets the remediation completion standard,

优选地，所述修复完成标准为：Preferably, the repair completion criteria are:

修复后的污染场地土壤中任意一种有机污染物含量和任意一种重金属污染物含量均未超过《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》中规定的风险筛选值，且The content of any organic pollutant and any heavy metal pollutant in the soil of the remediation contaminated site did not exceed the risk screening specified in the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" value, and

污染场地地下水中任意一种有机污染物含量和任意一种重金属污染物含量均未超过《地下水质量标准(GB/T 14818-2017)》IV类水质标准限定值。The content of any organic pollutant and any heavy metal pollutant in the groundwater of the polluted site did not exceed the limit value of the Class IV water quality standard in the "Groundwater Quality Standard (GB/T 14818-2017)".

当信息处理模块的判定结果显示达到修复标准时，则停止修复；当判定结果未达到修复标准时，则通过方案决策子***重新设计修复策略并传输指令至修复子***进行再次修复；直至达到修复标准。When the judgment result of the information processing module shows that the repair standard is reached, the repair is stopped; when the judgment result does not meet the repair standard, the repair strategy is redesigned through the solution decision-making subsystem and the instruction is transmitted to the repair subsystem for repair again; until the repair standard is reached.

本发明所述的污染场地智能修复***，通过实时检测土壤和地下水污染区域的实际情况，自动判断当前污染场地所处状态，并做出决策，选择最优的修复方式，能够对污染场地进行精准修复，且节省资源能耗、修复效率高、效果好。The polluted site intelligent restoration system described in the present invention can automatically judge the current state of the polluted site by detecting the actual situation of the soil and groundwater polluted area in real time, and make a decision to select the optimal restoration method, so that the polluted site can be accurately repaired. Repair, and save resources and energy consumption, high repair efficiency, good effect.

本发明还提供了一种污染场地修复方法，优选采用上述污染场地智能修复***进行，如图1所示，所述方法包括以下步骤：The present invention also provides a method for remediating a contaminated site, preferably using the above-mentioned intelligent remediation system for a contaminated site, as shown in Figure 1, the method includes the following steps:

步骤1，实时获取待修复污染场地的污染信息。Step 1. Obtain the pollution information of the contaminated site to be repaired in real time.

其中，优选采用实时监控子***监测污染场地污染信息，所述污染场地信息包括环境要素和设备参数，其中，Among them, it is preferable to use the real-time monitoring subsystem to monitor the pollution information of the polluted site, and the polluted site information includes environmental elements and equipment parameters, wherein,

所述环境要素包括重金属的种类及含量、有机污染物的种类及含量、监测时间、污染羽分布范围、地下水水水位、土壤含水率、氧化还原电位和pH值变化，The environmental elements include the type and content of heavy metals, the type and content of organic pollutants, monitoring time, distribution range of pollution plume, groundwater level, soil moisture content, redox potential and pH value changes,

优选地，获取污染信息的频率为智能调控模式，实时监控子***获取污染场地信息的频率根据修复进程通过方案决策子***进行调整，其中，所述设备参数(如时间、压力和流量等)为实时监测，监测频率优选为3次/min；Preferably, the frequency of obtaining pollution information is an intelligent control mode, and the frequency of obtaining polluted site information by the real-time monitoring subsystem is adjusted according to the restoration process through the scheme decision-making subsystem, wherein the equipment parameters (such as time, pressure and flow, etc.) are Real-time monitoring, the monitoring frequency is preferably 3 times/min;

所述环境要素(如污染物含量、地下水水位、pH等)根据修复进展进行动态调节。The environmental elements (such as pollutant content, groundwater level, pH, etc.) are dynamically adjusted according to the restoration progress.

步骤2，根据污染信息，选择适合的修复方式进行修复。Step 2. According to the pollution information, choose a suitable restoration method for restoration.

在本发明中，优选采用方案决策子***确定修复方式，其中，步骤2包括以下子步骤：In the present invention, it is preferable to adopt the scheme decision-making subsystem to determine the repair mode, wherein, step 2 includes the following sub-steps:

步骤2-1，将获取的污染信息与污染场地分级标准进行比较，确定污染场地的污染级别。Step 2-1, compare the obtained pollution information with the classification standard of the polluted site, and determine the pollution level of the polluted site.

其中，所述污染场地分级标准包括土壤污染分级标准和地下水污染分级标准，Wherein, the pollution site grading standards include soil pollution grading standards and groundwater pollution grading standards,

当污染场地土壤中存在至少一种指标种类有机污染物含量或重金属污染物含量高于《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》中规定的风险筛选值但是同时低于规定的风险管制值时，污染等级为轻度污染；When there is at least one index type of organic pollutants or heavy metal pollutants in the soil of the polluted site that is higher than the risk screening value specified in the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but at the same time When it is lower than the specified risk control value, the pollution level is light pollution;

当污染场地地下水中有机污染物含量和重金属污染物含量同时超过《地下水质量标准(GB/T 14818-2017)》IV类水标准但是低于标准值1.5倍时，污染等级为轻度污染；When the content of organic pollutants and heavy metal pollutants in the groundwater of the polluted site exceeds the standard for Class IV water in the "Groundwater Quality Standard (GB/T 14818-2017)" but is 1.5 times lower than the standard value, the pollution level is mild pollution;

步骤2-2，根据污染级别确定修复方式。Step 2-2, determine the remediation method according to the pollution level.

在本发明中，修复方式的选择根据修复方式选择标准确定，优选地，所述修复方式选择标准包括土壤修复方式选择标准和地下水修复方式选择标准，其中，所述土壤修复方式选择标准为：In the present invention, the selection of the remediation method is determined according to the selection criteria of the remediation method. Preferably, the selection criteria of the remediation method include the selection criteria of the soil remediation method and the selection criteria of the groundwater remediation method, wherein the selection criteria of the soil remediation method are:

当污染场地的地下水污染级别为轻度污染时，When the groundwater pollution level of the polluted site is slightly polluted,

当污染场地的地下水污染级别为有机物污染时，采用多相抽提和原为化学氧化方式修复；When the groundwater pollution level of the polluted site is organic pollution, multiphase extraction and original chemical oxidation are used for remediation;

其中，采用修复子***中的化学淋洗模块、热修复模块、电动力修复模块、多相抽提模块和三废处理模块，分别实现化学淋洗修复方式、热修复方式、电动力修复方式、易流动相多相抽提以及废气、废液、废渣的处理和处置。Among them, the chemical rinsing module, thermal repair module, electrodynamic repair module, multi-phase extraction module and three waste treatment module in the repair subsystem are used to realize the chemical rinsing repair method, thermal repair method, electrodynamic repair method, easy Mobile phase multiphase extraction and treatment and disposal of waste gas, waste liquid and waste residue.

其中，步骤3包括以下子步骤：Wherein, step 3 includes the following sub-steps:

步骤3-1，对修复后的污染场地进行实时监测。Step 3-1, real-time monitoring of the remediated contaminated site.

其中，通过实时监控子***监测修复后的污染场地信息，Among them, the real-time monitoring subsystem monitors the remediation contaminated site information,

所述实时监控子***获取污染场地信息的频率根据修复要求进行调整，The frequency at which the real-time monitoring subsystem obtains the information of the contaminated site is adjusted according to the remediation requirements,

对环境要素(如污染物含量、地下水水位、pH等)的监测为根据修复进展进行动态调节。The monitoring of environmental elements (such as pollutant content, groundwater level, pH, etc.) is dynamically adjusted according to the restoration progress.

在本发明中，所述智能修复***通过控制子***进行自反馈设置及动态联动，当修复子***运行时，监测频率达到仪器额定频率运行，其他时段则按照修复需求每小时或者每天一次进行监测。In the present invention, the intelligent repair system performs self-feedback setting and dynamic linkage through the control subsystem. When the repair subsystem is running, the monitoring frequency reaches the rated frequency of the instrument. In other periods, monitoring is performed every hour or once a day according to the repair demand .

步骤3-2，根据监测数据进行效果评价，获得评价结果。Step 3-2, perform effect evaluation according to monitoring data, and obtain evaluation results.

其中，方案决策子***中的信息处理模块对修复后的污染场地信息进行判定，确认判定结果是否达到修复完成标准。Among them, the information processing module in the scheme decision-making subsystem judges the information of the contaminated site after remediation, and confirms whether the judgment result meets the remediation completion standard.

步骤3-3，根据评价结果进行后续处理。In step 3-3, follow-up processing is performed according to the evaluation result.

当信息处理模块的判定结果显示达到修复标准时，则修复完成；当判定结果未达到修复标准时，则通过方案决策子***重新设计修复策略并经修复子***再次修复，直至修复完成。When the judgment result of the information processing module shows that the repair standard is met, the repair is completed; when the judgment result does not meet the repair standard, the repair strategy is redesigned through the solution decision subsystem and repaired again by the repair subsystem until the repair is completed.

本发明所述的污染场地修复方法，操作简单，条件易控，修复周期短，效果较好。The method for repairing the polluted site of the invention has simple operation, easy control of conditions, short repair period and good effect.

实施例Example

以下通过具体实例进一步描述本发明，不过这些实例仅仅是范例性的，并不对本发明的保护范围构成任何限制。The present invention is further described below through specific examples, but these examples are only exemplary and do not constitute any limitation to the protection scope of the present invention.

实施例1Example 1

在本实施例中，所述污染场地为：某废弃储油站，该储油池形状为150m×150m的长方形，石油烃污染达10000mg/kg，气相、液相、混合相污染物在块地中均有分散，废弃时间十年。该区域水文地质条件为：场地污染面积约10000m²，地下土层情况主要为填土-粉质粘土-砂质粉土。地下含水层位于6m-18m这一范围内，渗透系数较小，为1.02×10^-4m/d，主要位于粉质粘土层。地下水污染分布主要位于砂质粉土，由于污染时间较长，污染物和地质体结合较为牢固，采用单一技术去除率不高，修复工期较短。In this embodiment, the polluted site is: an abandoned oil storage station, the shape of the oil storage pool is a rectangle of 150m×150m, the petroleum hydrocarbon pollution reaches 10000mg/kg, and the gas phase, liquid phase and mixed phase pollutants are in the plot There are scattered in the middle, and the waste time is ten years. The hydrogeological conditions of this area are: the contaminated area of the site is about 10,000m ² , and the underground soil layer is mainly filled soil-silty clay-sandy silt. The underground aquifer is located in the range of 6m-18m, with a relatively small permeability coefficient of 1.02×10 ^-4 m/d, mainly located in the silty clay layer. The distribution of groundwater pollution is mainly located in sandy silt. Due to the long time of pollution, the combination of pollutants and geological bodies is relatively strong, the removal rate of single technology is not high, and the restoration period is short.

其中，采用的修复***的主要仪器的规格如表1所示：Among them, the specifications of the main instruments of the restoration system used are shown in Table 1:

表1Table 1

修复过程中，该场地采用了本实施例所述的修复***和修复方法，***针对场地污染相复杂，污染浓度大、各向异性大的特点，通过智能决策和实时监控，准确针对不同污染物的相态、浓度变化进行策略优选，具体步骤如下：During the repair process, the site adopted the repair system and repair method described in this embodiment. The system aimed at the complex pollution phase, high pollution concentration, and large anisotropy of the site, and accurately targeted different pollutants through intelligent decision-making and real-time monitoring. The phase state and concentration changes of different phases are optimized strategically, and the specific steps are as follows:

针对表层土壤污染：For surface soil contamination:

首先，实时监控子***通过土壤重金属检测仪和挥发性有机物检测仪对污染场地中的污染物进行实时监测，并将监测信息传递至方案决策子***的信息接收模块；First, the real-time monitoring subsystem monitors the pollutants in the polluted site in real time through the soil heavy metal detector and volatile organic compound detector, and transmits the monitoring information to the information receiving module of the scheme decision-making subsystem;

信息接收模块对信号进行降噪放大处理后将信息传递给信息处理模块，信息处理模块通过对比土壤污染分级标准，判定污染等级为有机物污染，并将约束条件和修复目标传递给决策控制模块；The information receiving module performs noise reduction and amplification processing on the signal, and then transmits the information to the information processing module. The information processing module determines that the pollution level is organic pollution by comparing the soil pollution grading standards, and transmits the constraints and restoration goals to the decision-making control module;

其中，土壤污染分级标准为：Among them, the soil pollution grading standards are:

然后，决策控制模块设计修复方案，针对表层土壤污染，选择修复子***中的热修复模块进行修复，其中，最佳加热温度和加热时间通过控制子***(中央处理器)进行计算，并利用信息输出模块中的plc***设定程序温度，在污染物浓度达到风险值以下时准确自动停止加热。Then, the decision-making control module designs a repair plan, and selects the thermal repair module in the repair subsystem to repair the surface soil pollution. Among them, the optimal heating temperature and heating time are calculated by the control subsystem (central processing unit), and use the information The plc system in the output module sets the program temperature, and when the concentration of pollutants reaches below the risk value, the heating will be stopped automatically and accurately.

在上述修复过程中，实时监控子模块对污染场地的污染物信息一直进行实时监测，并不断传送至方案决策子***进行判定，进而决策控制模块向修复子***发出调用指令或停止指令。During the above restoration process, the real-time monitoring sub-module has been monitoring the pollutant information of the polluted site in real time, and continuously transmitted to the scheme decision-making subsystem for judgment, and then the decision-making control module sends a call command or stop command to the restoration subsystem.

同时，采用文献“刘惠.污染土壤热脱附技术的应用与发展趋势[J].环境与可持续发展，2019，44(04):144-148.”中所述的无智能调控辅助的热脱附工艺对照修复上述污染场地，并对该现有技术所述方法与本实施例中所述修复方法对土壤修复的处理速率进行了比较，结果发现：本实施例所述修复方法对土壤修复的处理速率为21t/h(吨/小时)，较现有技术中的无智能调控辅助的热脱附工艺提升了5％。At the same time, the application and development trend of thermal desorption technology of polluted soil [J]. Environment and Sustainable Development, 2019, 44(04):144-148. The thermal desorption process controls the restoration of the above-mentioned polluted site, and compares the treatment rate of the soil restoration with the method described in the prior art and the restoration method described in this example. It is found that the restoration method described in this example has no effect on soil restoration. The treatment rate of the restoration is 21t/h (ton/hour), which is 5% higher than that of the thermal desorption process without intelligent control assistance in the prior art.

针对地下水污染，本实施例所述***首先通过多相抽提，通过气泵和潜水泵同时抽提，同时实现了气相和混合相石油烃浓度的快速降低，之后***调用了化学淋洗模块，采用注入的方式向含水层注入氧化剂(过硫酸盐)，针对难以分离的深层污染物进行原位氧化处理，最终将地下水水质提升到IV类水标准；同时采用现有技术中的无智能调控的抽提-注入处理工艺(王磊，龙涛，张峰等.用于土壤及地下水修复的多相抽提技术研究进展[J].生态与农村环境学报，2014，30(02):137-145.)进行对照修复；Aiming at groundwater pollution, the system described in this example first uses multi-phase extraction, simultaneous extraction by air pump and submersible pump, and simultaneously realizes the rapid reduction of the concentration of petroleum hydrocarbons in the gas phase and mixed phase. After that, the system calls the chemical leaching module, adopts The way of injection is to inject oxidant (persulfate) into the aquifer, and carry out in-situ oxidation treatment for deep-seated pollutants that are difficult to separate, and finally improve the groundwater quality to Class IV water standards; Extraction-injection treatment process (Wang Lei, Long Tao, Zhang Feng, etc. Research progress on multiphase extraction technology for soil and groundwater remediation[J]. Journal of Ecology and Rural Environment, 2014, 30(02):137-145. ) for comparison repair;

其中，地下水污染分级标准为：Among them, the classification standards for groundwater pollution are:

对上述两种修复方法对地下水的修复速率进行比较，结果发现：本实施例所述的修复***和修复方法，其对对显示的修复速率为0.042吨/天，较现有技术中的无智能调控的抽提-注入处理工艺，修复速率提升了30％；本实施例所述修复方法对地下水的修复的处理速率为219.84t/d(吨/天)，较现有技术中的无智能调控辅助的多相抽提工艺提升了9％。The above-mentioned two repair methods are compared to the repair rate of groundwater, and it is found that: the repair system and repair method described in the present embodiment have a repair rate of 0.042 tons/day, which is higher than that of the non-intelligent method in the prior art. The controlled extraction-injection treatment process has improved the repair rate by 30%; the repair method described in this embodiment has a treatment rate of 219.84t/d (tons/day) for the repair of groundwater, which is higher than that of the prior art without intelligent control The auxiliary multiphase extraction process was improved by 9%.

以上结合具体实施方式和范例性实例对本发明进行了详细说明，不过这些说明并不能理解为对本发明的限制。本领域技术人员理解，在不偏离本发明精神和范围的情况下，可以对本发明技术方案及其实施方式进行多种等价替换、修饰或改进，这些均落入本发明的范围内。The present invention has been described in detail above in conjunction with specific implementations and exemplary examples, but these descriptions should not be construed as limiting the present invention. Those skilled in the art understand that without departing from the spirit and scope of the present invention, various equivalent replacements, modifications or improvements can be made to the technical solutions and implementations of the present invention, all of which fall within the scope of the present invention.

Claims

1.一种污染场地智能修复方法，其特征在于，1. A polluted site intelligent restoration method, characterized in that,

所述方法包括以下步骤：The method comprises the steps of:

所述方法采用污染场地智能修复***进行，所述***包括实时监控子***、方案决策子***和修复子***，The method is carried out by using a contaminated site intelligent restoration system, and the system includes a real-time monitoring subsystem, a scheme decision-making subsystem and a restoration subsystem,

所述实时监控子***监测到的污染场地信息包括环境要素和设备参数，其中，The polluted site information monitored by the real-time monitoring subsystem includes environmental elements and equipment parameters, wherein,

所述环境要素包括重金属的种类及含量、有机污染物的种类及含量、监测时间、污染羽分布范围、地下水水位、土壤含水率、氧化还原电位、pH值变化；The environmental elements include the type and content of heavy metals, the type and content of organic pollutants, monitoring time, distribution range of pollution plume, groundwater level, soil moisture content, oxidation-reduction potential, and pH value changes;

所述设备参数包括各反应器温度、各管路流量、压力、电压和电流；The equipment parameters include each reactor temperature, each pipeline flow, pressure, voltage and current;

修复子***修复后的污染场地信息由实时监控子***监测获得，并传递至方案决策子***；The information of the contaminated site after restoration by the restoration subsystem is monitored by the real-time monitoring subsystem and transmitted to the scheme decision-making subsystem;

所述方案决策子***对监测到的信息进行判断，做出决策，选择相应的修复子***进行修复；The scheme decision-making subsystem judges the monitored information, makes a decision, and selects the corresponding repair subsystem for repair;

所述方案决策子***包括信息接收模块、信息处理模块、决策控制模块和信息输出模块，其中，The scheme decision-making subsystem includes an information receiving module, an information processing module, a decision-making control module and an information output module, wherein,

信息接收模块用于接收实时监控子***传输的监测信息，The information receiving module is used to receive the monitoring information transmitted by the real-time monitoring subsystem,

决策控制模块根据判定结果做出决策，在决策控制模块中，预先设置有修复方式选择标准，以根据判定结果选择相应的修复方式，其中，所述修复方式选择标准包括土壤修复方式选择标准和地下水修复方式选择标准，其中，所述土壤修复方式选择标准为：The decision-making control module makes a decision according to the judgment result. In the decision-making control module, a restoration method selection standard is preset to select a corresponding restoration method according to the judgment result. The restoration method selection standard includes the soil restoration method selection standard and groundwater Remediation method selection criteria, wherein the soil remediation method selection criteria are:

当污染场地的地下水污染级别为综合污染时，采用多相抽提和原位化学氧化方式修复，When the groundwater pollution level of the polluted site is comprehensive pollution, multiphase extraction and in-situ chemical oxidation are used for remediation.

其中，所述液相抽提方式采用的是多相抽提中的液相抽提功能；Wherein, what described liquid phase extraction mode adopts the liquid phase extraction function in multiphase extraction;

当污染场地的土壤和地下水污染级别均为重度污染时，对于污染场地上层土壤，采用化学淋洗修复方式；对于污染场地地下水，采用抽提方式和原位化学氧化方式进行修复；When the soil and groundwater pollution levels of the polluted site are both severely polluted, the upper soil of the polluted site shall be repaired by chemical leaching; the groundwater of the polluted site shall be repaired by extraction and in-situ chemical oxidation;

信息输出模块将决策控制模块做出的决策传输至修复子***，以进行修复；The information output module transmits the decision made by the decision-making control module to the repair subsystem for repair;

在信息处理模块中，预先设置有污染场地分级标准，In the information processing module, the pollution site classification standard is preset,

所述污染场地分级标准包括土壤污染分级标准和地下水污染分级标准；The grading standards for polluted sites include soil pollution grading standards and groundwater pollution grading standards;

所述土壤污染分级标准为：The soil pollution grading standards are:

当污染场地土壤中存在至少一种指标种类有机污染物含量或重金属污染物含量高于《土壤环境质量建设用地土壤污染风险管控标准(试行)(GB36600-2018)》中规定的风险筛选值但是同时低于规定的风险管制值时，污染级别为轻度污染；When there is at least one index type of organic pollutants or heavy metal pollutants in the soil of the polluted site that is higher than the risk screening value specified in the "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial) (GB36600-2018)" but at the same time When it is lower than the specified risk control value, the pollution level is light pollution;

步骤3，对修复后的场地进行修复效果评价，根据评价结果进行后续处理；Step 3: Evaluate the restoration effect of the restored site, and perform follow-up processing according to the evaluation results;

步骤3包括以下子步骤：Step 3 includes the following sub-steps:

步骤3-1，对修复后的污染场地进行实时监测；Step 3-1, real-time monitoring of the remediated contaminated site;

步骤3-2，根据监测数据进行效果评价，获得评价结果；Step 3-2, perform effect evaluation according to monitoring data, and obtain evaluation results;

2.根据权利要求1所述的方法，其特征在于，所述地下水污染分级标准为：2. method according to claim 1, is characterized in that, described underground water pollution grading standard is:

当污染场地地下水中存在有机污染物或重金属污染物含量指标超过《地下水质量标准(GB/T 14818-2017)》IV类水标准但是低于标准值1.5倍时，污染级别为轻度污染；When the content index of organic pollutants or heavy metal pollutants in the groundwater of the polluted site exceeds the standard for Class IV water in the "Groundwater Quality Standard (GB/T 14818-2017)" but is 1.5 times lower than the standard value, the pollution level is light pollution;

当污染场地地下水中至少存在一种重金属污染物含量超过《地下水质量标准(GB/T14818-2017)》IV类水标准限值1.5倍但是低于或等于限值的3倍，且所有种类有机污染物含量低于或等于IV类水标准限值1.5倍时，污染等级为重金属污染；When there is at least one heavy metal pollutant in the groundwater of the polluted site, the content of which is more than 1.5 times but less than or equal to 3 times the limit value of Class IV water in the "Groundwater Quality Standard (GB/T14818-2017)", and all types of organic pollution When the content of pollutants is lower than or equal to 1.5 times the standard limit value of Class IV water, the pollution level is heavy metal pollution;

当污染场地地下水中至少存在一种重金属污染物含量超过《地下水质量标准(GB/T14818-2017)》IV类水标准限值1.5倍但是低于限值的3倍，且至少一种有机污染物含量超过IV类水标准限值1.5倍但是低于限值的10倍时，污染等级为综合污染；When there is at least one heavy metal pollutant in the groundwater of the polluted site, the content of which is more than 1.5 times but less than 3 times the limit value of Class IV water standard in the "Groundwater Quality Standard (GB/T14818-2017)", and at least one organic pollutant When the content exceeds 1.5 times the standard limit value of Class IV water but is lower than 10 times the limit value, the pollution level is comprehensive pollution;

当污染场地地下水中存在一种重金属污染物含量超过《地下水质量标准(GB/T 14818-2017)》IV类水标准限值的3倍或存在有机污染物含量超过限值的10倍时，污染等级为重度污染。When the content of a heavy metal pollutant in the groundwater of the polluted site exceeds 3 times the limit value of the Class IV water standard in the "Groundwater Quality Standard (GB/T 14818-2017)" or the content of organic pollutants exceeds the limit value 10 times, pollution will occur. The level is heavy pollution.

3.根据权利要求1所述的方法，其特征在于，所述修复子***包括化学淋洗模块、热修复模块、电动力修复模块、多相抽提模块和三废处理模块，以分别实现化学淋洗修复方式、热修复方式、电动力修复方式、易流动相多相抽提以及废气、废液、废渣的处理和处置。3. The method according to claim 1, wherein the repair subsystem includes a chemical leaching module, a thermal repair module, an electrodynamic repair module, a multiphase extraction module and a three-waste treatment module to respectively realize chemical leaching Washing and repairing methods, thermal repairing methods, electrodynamic repairing methods, multi-phase extraction with easy mobile phase, and treatment and disposal of waste gas, waste liquid and waste residue.

4.根据权利要求1所述的方法，其特征在于，步骤2包括以下子步骤：4. The method according to claim 1, wherein step 2 comprises the following sub-steps:

步骤2-1，将获取的污染信息与污染场地分级标准进行比较，确定污染场地的污染级别；Step 2-1, compare the obtained pollution information with the classification standard of the polluted site, and determine the pollution level of the polluted site;