WO2023010616A1 - 一种城市管廊污泥异位处理***及方法 - Google Patents

一种城市管廊污泥异位处理***及方法 Download PDF

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WO2023010616A1
WO2023010616A1 PCT/CN2021/113395 CN2021113395W WO2023010616A1 WO 2023010616 A1 WO2023010616 A1 WO 2023010616A1 CN 2021113395 W CN2021113395 W CN 2021113395W WO 2023010616 A1 WO2023010616 A1 WO 2023010616A1
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sludge
module
tail water
treatment
dehydration
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PCT/CN2021/113395
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English (en)
French (fr)
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顾俊杰
周国锋
范洪凯
孟英杰
刘红燕
邱金伟
黄丽珠
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山东省环境保护科学研究设计院有限公司
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Publication of WO2023010616A1 publication Critical patent/WO2023010616A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens

Definitions

  • the invention belongs to the field of sludge treatment, and in particular relates to a system and method for dissimilar treatment of urban utility gallery sludge.
  • Sludge is the main by-product of the urban pipe gallery system, and it is the sediment that was dredged and dredged during the maintenance of the urban pipe gallery.
  • the sediments in the pipe gallery include particles and impurities that enter the pipe gallery conveying system with domestic sewage and industrial wastewater, as well as road dust, garbage, and mud discharged from construction sites, as well as other sundries, such as branches, plastic bags, cloth pieces , stones, fibers, animal carcasses, sand, beverage bottles, packaging boxes, etc.
  • the dredged sludge (with a moisture content of about 95%) is mainly disposed of in landfills after natural drying, but with the acceleration of urbanization, the sites that can be used for natural drying are gradually reduced, and the sludge from pipe corridors enters landfills.
  • the standards of the field are becoming more and more stringent, which has limited the treatment and disposal of the traditional pipe gallery sludge.
  • a large-scale, standardized and effective treatment model has not yet been formed.
  • the main principle is to use hydraulic and mechanical force, gravity sorting combined with particle size sorting to separate the components in the pipe network sludge for further separate treatment.
  • the specific process is shown in Figure 1: the pipe network sludge is first transported by tanker or transport vehicle to the sludge storage tank buffer in the grid slag feeding room, and then transported to the feeding dosing device by the grab elevator, and then passed through the feeder.
  • the material dosing device evenly and quantitatively feeds the sludge material into a coarse material separation device for the separation of coarse materials.
  • the coarse material separation device screens and washes the coarse material through a screen with a pore size of 15mm, and the coarse material produced is discharged into the coarse material slag box and transported inside and outside.
  • the mud and sand with an aperture of 15mm through the flow screen and the cleaning water for washing and separating the coarse objects are discharged into the sand washing and separating device for washing and separation.
  • the fine sand above 0.2mm is separated, and the fine sand material and organic matter are separated, and the recovery rate of ⁇ 0.2mm gravel can reach more than 95%, and the organic loss on ignition in the fine sand is reduced.
  • the separated fine sand can be recycled as building materials.
  • the supernatant liquid discharged through the overflow of the sand washing separation device, together with other organic liquids, is discharged into a fine filter device for deep filtration treatment.
  • the mixed liquid contains floating substances, and the floating substances are filtered.
  • the washing can be effectively removed.
  • Floating substances in the water equipped with professional filtering equipment, make the washing water undergo deep filtration and regeneration, and recycle the washing water to save a lot of water resources when washing coarse objects, and can provide carbon source recovery in the system to improve sewage carbon content in.
  • a cyclone sand removal device can be added after the fine filter device to separate silt with a particle size of less than 0.2mm.
  • the pipe gallery sludge is firstly screened through a coarse screening device to screen out faulty substances, such as branches larger than 100mm;
  • the above process has the following defects: the above process is only for the treatment and disposal of domestic sewage pipe gallery sludge, and does not take into account the treatment and disposal of industrial sewage pipe gallery sludge; because industrial sewage pipe gallery sludge contains a small amount of organic matter, heavy metals, harmful Therefore, it is very important to reduce, harmless, and recycle these substances that are likely to constitute secondary pollution.
  • an object of the present invention is to provide a system for ex-situ sludge treatment in urban utility corridors.
  • the present invention provides the following technical solutions:
  • a system for dissimilar treatment of sludge in an urban pipe gallery specifically comprising: a sludge collection module, a screening module, a dehydration module and a tail water treatment module;
  • the mud collecting module is used to collect the sludge discharged from dredging, and the sludge is homogenized and evenly distributed to the screening module;
  • the screening module is used to perform multi-stage screening to remove impurities from the sludge, and the sludge obtained after screening enters the dehydration module;
  • the dehydration module is used for sludge dehydration and volume reduction; tail water and mud cake are obtained after dehydration and volume reduction, and the tail water enters the tail water treatment module;
  • the tail water treatment module is used for biochemical treatment of the tail water.
  • the mud collection module is a mud collection tank, a stirring device and a coarse grid are arranged in the mud collection tank, a mud outlet is provided below the mud collection tank, and the coarse grid is perpendicular to the collection tank
  • the inner wall of the mud pool is set and divides the mud pool into upper and lower parts, the stirring blade of the stirring device is set under the coarse grid, and the sludge from the mud outlet is transported to the screening module through a lifting pump.
  • the aperture of the coarse grid is 1.6-2.5 cm.
  • the screening module includes a plurality of vibrating screens and a plurality of cyclones; a rinsing module is arranged in the vibrating sieves and the cyclones, and the rinsing module is used in the screening process Realize the leaching of the sludge by the eluent.
  • the eluent used in the eluting of the eluting module is one or more of water, ethylenediaminetetraacetic acid solution and citric acid solution.
  • the screening module includes a first-stage vibrating screen, a second-stage vibrating screen, a first-stage cyclone, and a second-stage cyclone arranged in series; the second-stage cyclone screen
  • the separated sludge is transported to the dewatering module through the lift pump.
  • the first-stage vibrating sieve screens pebbles with a particle size greater than 1 mm; the second-stage vibrating screen screens coarse sand of 1 mm to 600 ⁇ m; the first-stage cyclone screens Medium sand of 600 ⁇ m to 300 ⁇ m is produced; the secondary cyclone screens out fine sand of 300 ⁇ m to 75 ⁇ m.
  • the dehydration module includes a sludge settling tank, a conditioning tank and a dehydrator connected in sequence through pipelines, and the dewatering machine and the sludge settling tank are respectively connected to the tail water treatment module through respective pipelines; the conditioning A stirring device is installed in the pool;
  • the sludge obtained from the screening module is transported to the sludge sedimentation tank through pipelines, and the lower layer of mud is obtained after sedimentation in the sludge sedimentation tank.
  • Tail water and mud cake are obtained; the tail water obtained after dehydration and the upper tail water obtained after sedimentation in the sludge sedimentation tank all enter the tail water treatment module.
  • the tail water treatment module includes a tail water sedimentation tank and tail water integrated treatment equipment, the tail water obtained after dehydration by the dehydrator and the upper tail water obtained after sedimentation in the sludge sedimentation tank all enter the tail water Water sedimentation tank, the upper tail water obtained after sedimentation in the tail water sedimentation tank enters the tail water integrated treatment equipment;
  • the tail water integrated treatment equipment is provided with a tail water inlet, a chemical inlet and an outlet, and the treated tail water is discharged from the outlet; the outlet is connected to the screening module through a pipeline.
  • the first medicament is added to the mud collection module
  • the second medicament is added to the tail water integrated treatment equipment
  • the conditioning agent is added to the conditioning tank
  • the first medicament includes stabilizer, oxidizing agent, reducing agent, conditioning agent and flocculant;
  • the second medicament includes stabilizing agent, oxidizing agent, reducing agent and flocculant;
  • the stabilizer is one or more of alkaline stabilizers, phosphate stabilizers, sulfide stabilizers, iron salt stabilizers, silicate stabilizers, mineral stabilizers, and biochar;
  • Described oxidizing agent is Fenton's reagent
  • Described reducing agent is sulfite
  • Described conditioner is polyferric chloride and polyacrylamide
  • the flocculant is polyaluminum chloride and polyacrylamide.
  • the treatment system also includes a medicament preparation module, which is used to prepare the medicament required for the biochemical treatment of the conditioning tank, the sludge collection module, and the tail water treatment module;
  • the drug preparation module includes a solvent A medicine device and a water storage tank, the drug dissolving device is provided with a stirring device, a raw material inlet, a water inlet and a medicine outlet, the stirring device is arranged inside the drug dissolving device, and the water inlet communicates with the water storage tank;
  • the agent outlet is respectively connected to the tail water integrated treatment equipment, the conditioning tank and the mud collection module through pipelines.
  • the treatment system further includes a recycling module, and the recycling module is used to recycle the mud cake obtained from the dehydration module.
  • another object of the present invention is to provide a method for ex-situ treatment of urban pipe gallery sludge.
  • the present invention provides the following technical solutions:
  • a method for heterogeneous treatment of urban pipe gallery sludge the specific steps are as follows:
  • S1 Use the sludge collection module to collect the discharged sludge, and process the sludge in a homogeneous and uniform manner;
  • step S2 Using a screening module to perform multi-stage screening to remove impurities from the sludge obtained in step S1;
  • step S3 using the dehydration module to perform dehydration and volume reduction treatment on the sludge obtained in step S2 to obtain tail water and mud cake;
  • S4 Use the tail water treatment module to perform biochemical treatment on the tail water.
  • the dehydration module described in step S3 includes a sludge settling tank, a conditioning tank and a dehydrator connected in sequence through pipelines, and the dewatering machine and the sludge settling tank are respectively connected to the tail water treatment module through respective pipelines; step The specific process of S3 is as follows: the sludge obtained by the screening module is transported to the sludge sedimentation tank through pipelines, and the lower layer mud obtained after sedimentation is conditioned by the conditioning tank, and then dehydrated by the dehydrator, and tail water and mud cake are obtained after dehydration; dehydration The tail water obtained in the end and the upper tail water obtained after sedimentation in the sludge sedimentation tank all enter the tail water treatment module for biochemical treatment.
  • the invention realizes the "reduction”, “harmless” and “recycling” treatment of industrial sewage pipe gallery sludge.
  • the present invention can realize the cascade screening of the sludge in the pipe gallery by performing multi-stage screening and dehydration treatment on the sludge, reduce the disposal amount of the final sludge, and realize the "reduction" treatment.
  • Fig. 1 shows the sludge elutriation+screening process schematic diagram of prior art
  • Fig. 2 shows the schematic diagram of wet mechanical method treatment process of prior art
  • Fig. 3 shows the schematic diagram of the sludge heterotopic treatment system according to the urban pipe corridor of the present invention
  • the present invention discloses a system for dissimilar treatment of urban pipe gallery sludge, which specifically includes a sludge collection module, a screening module, a dehydration module, and a tail water treatment module;
  • the sludge collection module is used to collect sludge The sludge discharged from the silt is transported to the screening module after the sludge is homogeneous and even;
  • the screening module is used to perform multi-stage screening to remove impurities from the sludge, and the sludge obtained after screening enters the dehydration module
  • the dehydration module is used for sludge dehydration and volume reduction; tail water and mud cake are obtained after dehydration and volume reduction, and the tail water enters the tail water treatment module;
  • the tail water treatment module is used for biochemical treatment of the tail water.
  • the mud collection module is a mud collection tank 10, a stirring device and a coarse grid 11 are arranged in the mud collection tank 10, a mud outlet is provided under the mud collection tank 10, and the coarse
  • the grid 11 is arranged vertically to the inner wall of the sludge collection tank 10 and divides the sludge collection tank 10 into upper and lower parts.
  • the mixing blade of the stirring device is arranged under the coarse grid 11, and the sludge from the sludge outlet is It is transported to the screening module through the lift pump.
  • the aperture of the coarse grid 11 is 2cm.
  • the sludge passes through the sludge collection tank 10, which can remove larger impurities greater than 2cm, and the sludge stays in the sludge collection tank 10 (the stirring device should be opened when staying, and the general residence time is about 10min), which can Realize the homogeneity and equalization of mud.
  • the screening module includes a plurality of vibrating screens and a plurality of cyclones; a rinsing module is arranged in the vibrating sieves and the cyclones, and the rinsing module is used in the screening process Realize the leaching of the sludge by the eluent.
  • the eluent used in the rinsing of the rinsing module is one or more of clear water, ethylenediaminetetraacetic acid solution, and citric acid solution. When the sludge does not contain organic matter or heavy metals, clean water is sufficient as the eluent.
  • the rinsing module may be a spraying device arranged in the vibrating screen and the cyclone, and the eluent is sprayed into the vibrating screen and the cyclone through the nozzle of the spraying device.
  • the screening module includes a first-stage vibrating screen 20, a second-stage vibrating screen 30, a first-stage cyclone 40 and a second-stage cyclone 50 arranged in series in sequence;
  • the sludge screened by the secondary cyclone 50 is transported to the dehydration module through the lift pump;
  • the first-stage vibrating screen 20 can screen pebbles with a particle size greater than 1 mm;
  • the second-stage vibrating screen 30 can Screen out coarse sand of 1 mm to 600 ⁇ m;
  • the first stage cyclone 40 can screen out medium sand of 600 ⁇ m to 300 ⁇ m;
  • the second stage cyclone 50 can screen out fine sand of 300 ⁇ m to 75 ⁇ m, Under the sieve, the mud less than 75 ⁇ m can be obtained.
  • the dewatering module includes a sludge sedimentation tank 60 connected in sequence through pipelines, a conditioning tank 80 and a dewatering machine 90, and the dewatering machine 90 and the sludge sedimentation tank 60 are respectively connected to the tail water treatment module through respective pipelines , a stirring device is set in the conditioning pool 80;
  • the sludge obtained by the screening module is transported to the sludge settling tank 60 through the pipeline, and the lower layer mud is obtained after being settled in the sludge settling tank 60, and the lower layer mud of the sludge settling tank 60 is transported to the conditioning tank 80 and the dewatering machine 90 sequentially through the pipeline,
  • the tail water and mud cake are obtained after being dehydrated by the dehydrator 90; the tail water obtained after dehydration and the upper layer tail water obtained after sedimentation in the sludge settling tank 60 all enter the tail water treatment module.
  • the volume reduction of mud is achieved by setting up a dehydration module, and the conditioning tank 80 in it can condition the sludge after natural sedimentation, so that harmful impurities such as organic matter and heavy metals in the sludge can be removed.
  • the conditioning tank 80 By setting up a sludge settling tank 60, the sludge Natural precipitation is more sufficient.
  • the tail water treatment module includes a tail water sedimentation tank 70 and an integrated tail water treatment equipment 100, the tail water obtained after dehydration by the dehydrator 90 and the upper tail water obtained after sedimentation in the sludge sedimentation tank 60 Both enter the tail water sedimentation tank 70, and the upper layer tail water obtained after sedimentation in the tail water sedimentation tank 70 enters the tail water integrated treatment equipment 100;
  • the integrated tail water treatment equipment 100 is provided with a tail water inlet, a chemical inlet and an outlet, and the treated tail water is discharged from the outlet; the outlet is connected to the screening module through a pipeline.
  • the first medicament is added to the mud collection module
  • the second medicament is added to the tail water integrated treatment equipment 100
  • the conditioning agent is added to the conditioning tank 80;
  • the first medicament includes stabilizer, oxidizing agent, reducing agent, conditioning agent and flocculant;
  • the second medicament includes stabilizing agent, oxidizing agent, reducing agent and flocculant;
  • Described stabilizer is one or more in alkaline stabilizer, phosphate stabilizer, sulfide stabilizer, iron salt stabilizer, silicate stabilizer, mineral stabilizer, biochar; Described Oxidizing agent is Fenton's reagent; Described reducing agent is sulfite; Described conditioner is polyferric chloride and polyacrylamide (mass ratio of polyferric chloride and polyacrylamide is (50-100): (2 -5)); the flocculant is polyaluminum chloride and polyacrylamide (the mass ratio of polyaluminum chloride and polyacrylamide is (30-50):1).
  • Stabilizer For sludge polluted by heavy metals, heavy metals cannot be degraded by microorganisms, and can only migrate and transform between water, substrate and organisms in different valence states. Stabilizers can stabilize the form of heavy metals and delay their form changes;
  • Oxidizing and reducing agents accelerate sludge dewatering
  • Conditioning agent It can change the physical and chemical properties of sludge particles, destroy the colloidal structure of sludge, reduce its affinity with water, and reduce specific resistance, thereby improving its dehydration performance;
  • Flocculants help to improve the flocs of sludge, make it easier for sludge to form flocs, help to increase the adsorption effect of sludge, and help sludge settle quickly.
  • the specific addition amount of above medicament depends on the situation of actual sludge, and wherein, the addition amount of conditioner in the conditioning tank 80 is: polyferric chloride (addition amount 50 ⁇ 100kg/t (dry mud)), polyacrylamide (addition amount 2 ⁇ 5kg/t (absolute dry mud)).
  • the sludge is biochemically treated by adding the first medicament to the sludge collection module, and the second medicament is added to the tail water integrated treatment equipment 100 to perform biochemical treatment on the tail water obtained after dehydration and the upper tail water obtained after sedimentation in the sedimentation tank;
  • a conditioning agent has been added to carry out mud conditioning; harmful impurities such as organic matter and heavy metals in sewage and sludge can be removed through these operations;
  • the outlet of the tail water treatment module is connected to the screening module through a pipeline, so that the treatment The final tail water is transported to the screening module for use as eluent, realizing the reuse of tail water.
  • the treatment system also includes a medicament preparation module, which is used to prepare the medicament required for the biochemical treatment of the conditioning tank 80, the sludge collection module, and the tail water treatment module; the drug preparation
  • the module includes a drug-dissolving device 110 and a water storage tank 120.
  • the drug-dissolving device 110 is provided with a stirring device, a raw material inlet, a water inlet and a drug outlet.
  • the stirring device is arranged inside the drug-dissolving device 110, and the water
  • the inlet communicates with the water storage tank 120; the agent outlet is respectively connected to the tail water integrated treatment equipment 100, the conditioning tank 80 and the mud collection module through pipelines.
  • the treatment system further includes a recycling module, and the recycling module is used to recycle the mud cake obtained from the dehydration module.
  • the collected mud cake can be used for brick making, slope protection or roadbed materials, etc.
  • the specific method can be determined according to the actual situation of the project.
  • a lift pump can be arranged on the pipeline in the present invention according to actual needs.
  • S1 Use the sludge collection module to collect the discharged sludge, and process the sludge in a homogeneous and uniform manner
  • the sludge is transported to the sludge collection module (preferably, the first medicament is added to carry out biochemical treatment in the sludge collection module), and the sludge passes through the coarse grid 11 to remove larger debris greater than 2cm, and the sludge is collected in the sludge collection tank 10 After staying for a period of time (the stirring device should be turned on during the stay, generally about 10 minutes), the homogeneity and volume of the mud can be realized.
  • the homogeneous and equalized sludge is transported from the sludge outlet of the sludge collection tank 10 to the screening module through a lift pump, and then multi-stage screening is carried out to remove impurities; specifically, the sludge first enters the first-stage vibrating screen 20.
  • the first-stage vibrating screen 20 has a larger screen aperture (1mm), which can separate pebbles larger than 1mm in the mud (except for pebbles, it can also be plastic, foam, dead branches, grass leaves and other debris); the first-stage vibration
  • the under-sieve enters the second-stage vibrating screen 30, and the particle size of the second-stage vibrating screen 30 is reduced (the screen aperture is 600 ⁇ m), which can further separate impurities such as coarse sand of 1 mm to 600 ⁇ m; the second-stage vibrating screen 30.
  • the undersieve enters the first stage cyclone 40. Under the action of centrifugal force and gravity, the first stage cyclone 40 can mainly screen out medium sand with a particle size of 600 ⁇ m to 300 ⁇ m.
  • the first stage cyclone The undersize of 40 enters the second-stage cyclone 50, and the second-stage cyclone 50 separates the fine sand with a particle size of 300 ⁇ m to 75 ⁇ m.
  • the sludge is rinsed by using a rinse module; generally, clean water is selected as the rinse solution, and when the sludge is polluted by heavy metals or organic matter, ethylenediaminetetraacetic acid and citric acid are added to the clean water for cleaning. Rinse.
  • the hair and garbage screened out by the screening module can be specially disposed of by the sanitation department for external operations, while the gravel (coarse sand, medium sand and fine sand) can be used in the construction industry (road construction, buried pipe materials, canal construction, soil remediation When the matrix material, etc.) is used.
  • step S3 Use the dehydration module to dehydrate and reduce the volume of the sludge obtained in step S2 to obtain tail water and mud cake
  • the sludge treated by the screening system enters the dehydration module, that is, the undersize of the second-stage cyclone 50 is pumped into the sludge settling tank 60, and from the sludge settling tank 60
  • the mud from the lower layer first enters the conditioning tank 80 for conditioning with a conditioning agent, and then enters the dehydrator 90 for dehydration treatment to obtain tail water and mud cake; the tail water obtained after dehydration and the upper layer tail water obtained after sedimentation in the sludge settling tank 60 Both enter the tail water treatment module.
  • the mud cake obtained by the dehydration module is recycled by the recycling module.
  • the collected mud cake can be used for brick making, and the produced bricks can be used for paving sidewalks, squares and park roads.
  • S4 Use the tail water treatment module to perform biochemical treatment on the tail water.
  • the tail water obtained after dehydration and the upper tail water obtained after sedimentation in the sludge sedimentation tank 60 all enter the tail water sedimentation tank 70 in the tail water treatment module, and the upper tail water obtained after sedimentation in the tail water sedimentation tank 70
  • the water enters the tail water integrated treatment equipment 100; the tail water integrated treatment equipment 100 adopts the second medicament to carry out biochemical treatment on the tail water to remove harmful substances in the tail water, and the tail water after biochemical treatment can be respectively connected to the
  • the first-stage vibrating screen 20, the second-stage vibrating screen 30, the first-stage cyclone 40, and the second-stage cyclone 50 are used as eluent.

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Abstract

一种城市管廊污泥异位处理***及方法，所述的***具体包括：集泥模块、筛分模块、脱水模块和尾水处理模块；所述的集泥模块用于收集清淤排入的污泥，污泥均质均量后输送至筛分模块；所述的筛分模块用于对污泥进行多级筛分去杂，筛分后得到的污泥进入到脱水模块；所述的脱水模块用于污泥脱水减容；脱水减容后得到尾水和泥饼，尾水进入到尾水处理模块；所述的尾水处理模块用于对尾水进行生化处理。通过对污泥进行多级筛分和脱水处理，可以实现对管廊污泥的梯级筛分，减少了最终污泥的处置量，实现了"减量化"处理。通过在尾水处理模块中进行生化处理，降低污泥中污染物含量，实现污泥的"无害化"处理。

Description

一种城市管廊污泥异位处理***及方法 技术领域
本发明属于污泥处理领域，特别涉及一种城市管廊污泥异位处理***及方法。
背景技术
污泥是城市管廊***的主要副产品，是城市管廊养护中疏通清捞上来的沉积物。管廊内的沉积物既有随生活污水和工业废水进入管廊输送***的颗粒物和杂质，也有道路降尘、垃圾以及建设工地排放的泥浆、还有其他杂物，例如树枝、塑料袋、布片、石块、纤维、动物尸体、泥沙、饮料瓶、包装盒等。管廊在长时间使用之后，需要进行养护清淤，消除管廊中的污泥，降低污泥对管廊的负面作用。疏浚后的污泥(含水率95％左右)以自然晾晒后填埋处置为主，但随着城市化进程的加快，可以用于自然晾晒的场地逐步缩小，并且管廊污泥进入垃圾填埋场的标准越来越严格，造成传统的管廊污泥的处理处置方式受到限制，同时受到处理方式和成本的限制，大规模地、规范化、有效的处理模式还没有形成，大部分疏浚污泥处置尚属试验和研究阶段；重要的是，管廊污泥中含有大量的可利用的资源，因此急需一种可以对管廊污泥实现减量化、稳定化、无害化、资源化的污泥处理方法。
国内现有管廊污泥处理主要采用以下两种工艺：
(1)污泥淘洗+筛分工艺
主要原理是利用水力和机械力、重力分选结合粒度分选，将管网污泥中的各成份分离，以便进一步分开处理。具体流程如图1所示：管网污泥首先由罐车或运输车输送至栅渣进料间的污泥储料池缓存，然后经抓斗式提升机输送至进料投配装置，通过进料投配装置均匀定量地将污泥物料输入一台粗大物料分离装置，进行粗大物质的分离。粗大物料分离装置通过孔径为15mm的筛网对粗大物质进行筛分洗涤处理，产生的粗大物质被排入-粗大物料渣箱内外运。而穿流筛网孔径15mm的泥砂物和冲洗粗大物分离的清洗水一起排入洗砂分离装置，进行洗涤和分离处理。洗砂分离过程中0.2mm以上的细砂被分离处理，在将细砂物质和有机物质相分离，同时使≥0.2mm砂砾回收率可达95％以上，并使细砂中有机烧失含量降低至7％以下，分离出的细砂物质可作为建筑材料回收利用。通过洗砂分离装置溢流排出的上清液，连同其他有机物液体排入1台精细过滤装置进行深度过滤处理，混合液体内含有飘浮物质，将飘浮物质进行过滤处理，此时可以有效地去除洗涤水中的漂浮物质，配置专业的过滤设备，使洗涤水进行深度过滤和再生回用，循环利用冲洗水使得冲洗粗大物分离时可以节省大量水资源，并且可以提供***中的碳源回收，提高污水中的含碳量。若污泥中粉沙含量较高，可在精细过滤装置后增加旋流除砂装置，可以分离粒径小于0.2mm的粉沙。
(2)湿机械法处理工艺
如图2所示：具体过程如下：
S1：管廊污泥首先通过粗筛装置进行粗筛处理，筛除故障物质，例如大于100mm的树枝；
S2：通过粗筛装置的污泥进行筛分处理和粗洗涤处理，除去粗大物质，例如大于10mm的栅渣，包装材料，罐头，石块；
S3：然后进行砂水分离和沉砂洗涤处理，除去矿化物质，例如细砂；
S4：最后进行细砂分离处理和有机物质脱水处理，除去有机固体物质，例如大于1mm的有机固体物质。
以上工艺存在如下缺陷：以上工艺只针对生活污水管廊污泥的处理处置，未为考虑到工业污水管廊污泥的处理处置；由于工业污水管廊污泥中含有少量的有机物、重金属、有害病菌等，因此对这些极可能构成二次污染的物质进行减量化、无害化、资源化处理是十分重要的。
发明内容
针对上述问题，本发明的一个目的在于：提供一种城市管廊污泥异位处理***。
为了实现上述目的，本发明提供如下技术方案：
一种城市管廊污泥异位处理***，具体包括：集泥模块、筛分模块、脱水模块和尾水处理模块；
所述的集泥模块用于收集清淤排入的污泥，污泥均质均量后输送至筛分模块；
所述的筛分模块用于对污泥进行多级筛分去杂，筛分后得到的污泥进入到脱水模块；
所述的脱水模块用于污泥脱水减容；脱水减容后得到尾水和泥饼，尾水进入到尾水处理模块；
所述的尾水处理模块用于对尾水进行生化处理。
优选地，所述的集泥模块为集泥池，所述的集泥池内设置搅拌装置和 粗格栅，所述的集泥池的下方设置出泥口，所述的粗格栅垂直于集泥池内壁设置且将集泥池分割成上下两部分，所述的搅拌装置的搅拌叶片设置在粗格栅的下方，所述的出泥口出来的污泥经过提升泵输送到筛分模块。
优选地，所述的粗格栅的孔径为1.6～2.5cm。
优选地，所述的筛分模块包括多个振动筛和多个旋流器；所述的振动筛和旋流器内均设置淋洗模块，所述的淋洗模块用于在筛分过程中实现淋洗液对污泥的淋洗。
优选地，所述的淋洗模块淋洗时采用的淋洗液为清水、乙二胺四乙酸溶液和柠檬酸溶液中的一种或多种。
优选地，所述的筛分模块包括依次串联设置的第一级振动筛、第二级振动筛、第一级旋流器和第二级旋流器；所述的第二级旋流器筛分得到的污泥经过提升泵输送到脱水模块。
优选地，所述的第一级振动筛筛分出粒径大于1mm的卵石；所述的第二级振动筛筛分出1mm～600μm的粗砂；所述的第一级旋流器筛分出600μm～300μm的中砂；所述的二级旋流器筛分出300μm～75μm的细砂。
优选地，所述的脱水模块包括通过管道依次连接的污泥沉淀池、调理池和脱水机，所述的脱水机和污泥沉淀池分别通过各自管道连接到尾水处理模块；所述的调理池内设置搅拌装置；
筛分模块得到的污泥通过管道输送到污泥沉淀池，经污泥沉淀池沉淀后得到下层泥浆，污泥沉淀池的下层泥浆通过管道依次输送到调理池和脱水机，经脱水机脱水后得到尾水和泥饼；脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水处理模块。
优选地，所述的尾水处理模块包括尾水沉淀池和尾水一体化处理设备， 所述的脱水机脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水沉淀池，经尾水沉淀池沉淀后得到的上层尾水进入到尾水一体化处理设备；
所述的尾水一体化处理设备上设有尾水入口、药剂入口和出口，处理后的尾水从出口排出；所述的出口通过管道连接到筛分模块。
优选地，所述的集泥模块中加入了第一药剂，所述的尾水一体化处理设备中加入了第二药剂；所述的调理池中加入了调理剂；
所述的第一药剂包括稳定剂、氧化剂、还原剂、调理剂和絮凝剂；所述的第二药剂包括稳定剂、氧化剂、还原剂和絮凝剂；
所述的稳定剂为碱性稳定剂、磷酸盐稳定剂、硫化物稳定剂、铁盐稳定剂、硅酸盐稳定剂、矿物质稳定剂、生物炭中的一种或多种；
所述的氧化剂为Fenton试剂；
所述的还原剂为亚硫酸盐；
所述的调理剂为聚合氯化铁和聚丙烯酰胺；
所述的絮凝剂为聚合氯化铝和聚丙烯酰胺。
优选地，所述的处理***还包括药剂制备模块，所述的药剂制备模块用于制备调理池、集泥模块以及尾水处理模块生化处理时所需的药剂；所述的药物制备模块包括溶药装置和储水罐，所述的溶药装置设有搅拌装置、原料入口、水入口和药剂出口，所述的搅拌装置设置在溶药装置内部，所述的水入口与储水罐连通；所述的药剂出口通过管道分别与尾水一体化处理设备、调理池和集泥模块连接。
优选地，所述的处理***还包括资源化模块，所述的资源化模块用于对脱水模块得到的泥饼进行回收利用。
针对上述问题，本发明的另一个目的在于：提供一种城市管廊污泥异位处理方法。
为了实现上述目的，本发明提供如下技术方案：
一种城市管廊污泥异位处理方法，具体步骤如下：
S1：采用集泥模块收集排入的污泥，并对污泥进行均质均量处理；
S2：采用筛分模块对步骤S1得到的污泥进行多级筛分去杂；
S3：采用脱水模块对步骤S2得到的污泥中进行脱水减容处理，得到尾水和泥饼；
S4：采用尾水处理模块对尾水进行生化处理。
优选地，步骤S3中所述的脱水模块包括通过管道依次连接的污泥沉淀池，调理池和脱水机，所述的脱水机和污泥沉淀池分别通过各自管道连接到尾水处理模块；步骤S3的具体过程如下：筛分模块得到的污泥通过管道输送到污泥沉淀池，沉淀后得到的下层泥浆经过调理池调理后，再经过脱水机脱水，脱水后得到尾水和泥饼；脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水处理模块进行生化处理。
本发明的有益效果在于：
本发明实现了工业污水管廊污泥的“减量化”、“无害化”、“资源化”处理。
(1)本发明通过对污泥进行多级筛分和脱水处理，可以实现对管廊污泥的梯级筛分，减少了最终污泥的处置量，实现了“减量化”处理。
(2)本发明通过设置集泥模块、调理池和尾水处理模块，在集泥模块、调理池和尾水处理模块中加入药剂对污泥或尾水进行处理，降低污泥中污染物含量，实现污泥的“无害化”处理。
(3)本发明中振动筛及旋流器筛分出的粗石块、卵石和细砂等物质可用于建筑工业利用，脱水后的泥饼可用于制砖，尾水处理后可以作为淋洗液进行循环利用或排回污水处理厂，实现了污泥的“资源化”处理。
本发明的(优点介绍)。本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所指出的结构来实现和获得。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了现有技术的污泥淘洗+筛分工艺示意图；
图2示出了现有技术的湿机械法处理工艺示意图；
图3示出了根据本发明城市管廊污泥异位处理***的示意图；
附图标记中：10-集泥池、11-粗格栅、20-第一级振动筛、30-第二级振动筛、40-第一级旋流器、50-第二级旋流器、60-污泥沉淀池、70-尾水沉淀池、80-调理池、90-脱水机、100-尾水一体化处理、110-溶药装置、120-储水罐。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地说明，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。 基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图3所示：本发明公开了一种城市管廊污泥异位处理***，具体包括集泥模块、筛分模块、脱水模块和尾水处理模块；所述的集泥模块用于收集清淤排入的污泥，污泥均质均量后输送至筛分模块；所述的筛分模块用于对污泥进行多级筛分去杂，筛分后得到的污泥进入到脱水模块；所述的脱水模块用于污泥脱水减容；脱水减容后得到尾水和泥饼，尾水进入到尾水处理模块；所述的尾水处理模块用于对尾水进行生化处理。
具体地，所述的集泥模块为集泥池10，所述的集泥池10内设置搅拌装置和粗格栅11，所述的集泥池10的下方设置出泥口，所述的粗格栅11垂直于集泥池10内壁设置且将集泥池10分割成上下两部分，所述的搅拌装置的搅拌叶片设置在粗格栅11的下方，所述的出泥口出来的污泥经过提升泵输送到筛分模块。所述的粗格栅11的孔径为2cm。
通过设置集泥池10，污泥经过集泥池10，能够去除大于2cm的较大杂物，污泥在集泥池10停留(停留时搅拌装置要开启，一般停留时间为10min左右)，能够实现泥浆的均质和均量。
具体地，所述的筛分模块包括多个振动筛和多个旋流器；所述的振动筛和旋流器内均设置淋洗模块，所述的淋洗模块用于在筛分过程中实现淋洗液对污泥的淋洗。所述的淋洗模块淋洗时采用的淋洗液为清水、乙二胺四乙酸溶液、柠檬酸溶液中的一种或多种。当污泥中不含有机物或重金属时，淋洗液选择清水即可，当污泥中含有机物或重金属时，淋洗液中还需加入乙二胺四乙酸和/或柠檬酸。在实际应用中，所述的淋洗模块可以是设置在振动筛和旋流器内的喷淋装置，淋洗液通过喷淋装置的喷头喷入振动 筛和旋流器内。
通过设置多个振动筛和旋流器，实现对管廊污泥的梯级筛分，减少了最终污泥的处置量。通过设置淋洗模块不仅能够防止振动筛和旋流器的筛网堵塞，而且还能够除去污泥中有机物或重金属。
作为优选地方案，所述的筛分模块包括依次串联设置的第一级振动筛20，第二级振动筛30，第一级旋流器40和第二级旋流器50；所述的第二级旋流器50筛分出来的污泥经过提升泵输送到脱水模块；所述的第一级振动筛20可筛分出粒径大于1mm的卵石；所述的第二级振动筛30可筛分出1mm～600μm的粗砂；所述的第一级旋流器40可筛分出600μm～300μm的中砂；所述的二级旋流器50筛分出300μm～75μm的细砂，筛下即得小于75μm的泥浆。
具体地，所述的脱水模块包括通过管道依次连接的污泥沉淀池60，调理池80和脱水机90，所述的脱水机90和污泥沉淀池60分别通过各自管道连接到尾水处理模块，所述的调理池80内设置搅拌装置；
筛分模块得到的污泥通过管道输送到污泥沉淀池60，经污泥沉淀池60沉淀后得到下层泥浆，污泥沉淀池60的下层泥浆通过管道依次输送到调理池80和脱水机90，经脱水机90脱水后得到尾水和泥饼；脱水后得到尾水以及污泥沉淀池60沉淀后得到上层尾水均进入到尾水处理模块。
通过设置脱水模块实现泥浆减容，其中的调理池80能够对自然沉淀后的污泥进行调理，这样能够除去污泥中的有机物和重金属等有害杂质，通过设置污泥沉淀池60，使得污泥自然沉淀更加充分。
具体地，所述的尾水处理模块包括尾水沉淀池70和尾水一体化处理设备100，所述的脱水机90脱水后得到的尾水以及污泥沉淀池60沉淀后得到 的上层尾水均进入到尾水沉淀池70，经尾水沉淀池70沉淀后得到的上层尾水进入到尾水一体化处理设备100；
所述的尾水一体化处理设备100上设有尾水入口、药剂入口和出口，处理后的尾水从出口排出；所述的出口通过管道连接到筛分模块。
优选地，根据实际需要，所述的集泥模块中加入了第一药剂，所述的尾水一体化处理设备100中加入了第二药剂；所述的调理池80中加入了调理剂；
所述的第一药剂包括稳定剂、氧化剂、还原剂、调理剂和絮凝剂；所述的第二药包括剂稳定剂、氧化剂、还原剂和絮凝剂；
所述的稳定剂为碱性稳定剂，磷酸盐稳定剂，硫化物稳定剂、铁盐稳定剂、硅酸盐稳定剂、矿物质稳定剂、生物炭中的一种或多种；所述的氧化剂为Fenton试剂；所述的还原剂为亚硫酸盐；所述的调理剂为聚合氯化铁和聚丙烯酰胺(聚合氯化铁和聚丙烯酰胺的质量比为(50-100)：(2-5))；所述的絮凝剂为聚合氯化铝和聚丙烯酰胺(聚合氯化铝和聚丙烯酰胺的质量比为(30-50):1)。
以上药剂中各原料的作用如下：
稳定剂：对于重金属污染的污泥，重金属不能被微生物降解，只能以不同的价态在水、底质和生物之间迁移转化，稳定剂可稳定重金属的形态，延缓其形态变化；
氧化剂和还原剂：加速污泥脱水；
调理剂：可使污泥微粒改变物化性质，破坏污泥的胶体结构，减少其与水的亲和力，降低比阻，从而改善其脱水性能；
絮凝剂：有助于改善污泥的絮体，使污泥的更加容易形成絮体，有助 于增加污泥的吸附效果，有助于污泥快速的沉降。
以上药剂的具体加入量根据实际污泥的情况而定，其中，调理池80中调理剂的加入量为：聚合氯化铁(加入量50～100kg/t(绝干泥))、聚丙烯酰胺(加入量2～5kg/t(绝干泥))。
通过在集泥模块中加入了第一药剂对污泥进行生化处理，在尾水一体化处理设备100中加入第二药剂对脱水后得到尾水以及沉淀池沉淀后得到上层尾水进行生化处理；在调理池80中加入了调理剂进行泥质调理；通过这些操作能够除去污水和污泥中的有机物和重金属等有害杂质；尾水处理模块的出口通过管道连接到筛分模块，这样就将处理后的尾水输送到筛分模块作为淋洗液使用，实现了对尾水的再利用。
作为优选地方案，所述的处理***还包括药剂制备模块，所述的药剂制备模块用于制备调理池80、集泥模块以及尾水处理模块生化处理时所需的药剂；所述的药物制备模块包括溶药装置110和储水罐120，所述的溶药装置110设有搅拌装置、原料入口、水入口和药剂出口，所述的搅拌装置设置在溶药装置110内部，所述的水入口与储水罐120连通；所述的药剂出口分别通过管道与尾水一体化处理设备100、调理池80和集泥模块连接。
作为优选地方案，所述的处理***还包括资源化模块，所述的资源化模块用于对脱水模块得到的泥饼的回收利用。收集到的泥饼可以用于制砖、护坡或路基材料等，具体途径可根据项目实际情况确定。
具体使用时，本发明中的管道上可根据实际需要设置提升泵。
基于上述***，结合图3，本发明的城市管廊污泥异位处理方法，具体步骤如下：
S1：采用集泥模块收集排入的污泥，并对污泥进行均质均量处理
具体地，将污泥输送到集泥模块(优选地，集泥模块中加入第一药剂进行生化处理)，污泥经过粗格栅11，去除大于2cm的较大杂物，在集泥池10停留一段时间(停留时搅拌装置要开启，一般停留10min左右)后，实现泥浆的均质和均量。
S2：采用筛分模块对步骤S1得到的污泥进行多级筛分去杂
具体地，均质和均量后的污泥从集泥池10的出泥口经提升泵输送进入筛分模块，进行多级筛分去杂；具体地，污泥首先进入第一级振动筛20，第一级振动筛20筛网孔径(1mm)较大，可将泥浆内大于1mm的卵石(除了卵石，还可以是塑料、泡沫、枯枝草叶等杂物)分离出来；一级振动筛筛下物进入第二级振动筛30，第二级振动筛30粒径减小(筛网孔径为600μm)，可进一步将1mm～600μm的粗砂等杂物分离出来；第二级振动筛30筛下物进入第一级旋流器40，在离心力和重力的作用下，第一级旋流器40主要是可将粒径600μm～300μm的中砂筛分出来，第一级旋流器40的筛下物进入第二级旋流器50，第二级旋流器50将粒径300μm～75μm的细砂分离出来。
优选地，筛分过程中，采用淋洗模块对污泥进行淋洗；一般选择清水作为淋洗液，当污泥为重金属或有机物污染时，在清水中加入乙二胺四乙酸、柠檬酸进行淋洗。经筛分模块筛分出的毛发和垃圾等可由环卫部门进行外运作专门处置，而砂砾(粗砂、中砂和细砂)可用于建筑工业(马路建造、埋管材料、水渠建造、土壤修复时的基质材料等)利用。
S3：采用脱水模块对步骤S2得到的污泥进行脱水减容处理，得到尾水和泥饼
具体地，筛分***处理后的污泥(粒径小于75μm的污泥)进入脱水模 块即第二级旋流器50的筛下物泵送入污泥沉淀池60，从污泥沉淀池60出来的下层泥浆先进入调理池80采用调理剂进行调理，再进入脱水机90进行脱水处理后得到尾水和泥饼；脱水后得到的尾水以及污泥沉淀池60沉淀后得到的上层尾水均进入到尾水处理模块。
脱水模块得到的泥饼采用资源化模块进行回收利用，收集到的泥饼可以用于制砖，生产出来的砖可用于人行道、广场及公园道路的铺设等。
S4：采用尾水处理模块对尾水进行生化处理。
具体地，脱水后得到的尾水以及污泥沉淀池60沉淀后得到的上层尾水均进入到尾水处理模块中的尾水沉淀池70中，经尾水沉淀池70沉淀后得到的上层尾水进入到尾水一体化处理设备100中；尾水一体化处理设备100中采用第二药剂对尾水进行生化处理，除去尾水中的有害物质，生化处理后的尾水可以通过管道分别连接到第一级振动筛20，第二级振动筛30，第一级旋流器40，第二级旋流器50，作为淋洗液使用。
尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (14)

  1. 一种城市管廊污泥异位处理***，其特征在于：具体包括：集泥模块、筛分模块、脱水模块和尾水处理模块；
    所述的集泥模块用于收集清淤排入的污泥，污泥均质均量后输送至筛分模块；
    所述的筛分模块用于对污泥进行多级筛分去杂，筛分后得到的污泥进入到脱水模块；
    所述的脱水模块用于污泥脱水减容；脱水减容后得到尾水和泥饼，尾水进入到尾水处理模块；
    所述的尾水处理模块用于对尾水进行生化处理。
  2. 根据权利要求1所述的城市管廊污泥异位处理***，其特征在于：所述的集泥模块为集泥池，所述的集泥池内设置搅拌装置和粗格栅，所述的集泥池的下方设置出泥口，所述的粗格栅垂直于集泥池内壁设置且将集泥池分割成上下两部分，所述的搅拌装置的搅拌叶片设置在粗格栅的下方，所述的出泥口出来的污泥经过提升泵输送到筛分模块。
  3. 根据权利要求2所述的城市管廊污泥异位处理***，其特征在于：所述的粗格栅的孔径为1.6～2.5cm。
  4. 根据权利要求1所述的城市管廊污泥异位处理***，其特征在于：所述的筛分模块包括多个振动筛和多个旋流器；所述的振动筛和旋流器内均设置淋洗模块，所述的淋洗模块用于在筛分过程中实现淋洗液对污泥的淋洗。
  5. 根据权利要求4所述的城市管廊污泥异位处理***，其特征在于：所述的淋洗模块淋洗时采用的淋洗液为清水、乙二胺四乙酸溶液和柠檬酸 溶液中的一种或多种。
  6. 根据权利要求4所述的城市管廊污泥异位处理***，其特征在于：所述的筛分模块包括依次串联设置的第一级振动筛、第二级振动筛、第一级旋流器和第二级旋流器；所述的第二级旋流器筛分得到的污泥经过提升泵输送到脱水模块。
  7. 根据权利要求6所述的城市管廊污泥异位处理***，其特征在于：所述的第一级振动筛筛分出粒径大于1mm的卵石；所述的第二级振动筛筛分出1mm～600μm的粗砂；所述的第一级旋流器筛分出600μm～300μm的中砂；所述的二级旋流器筛分出300μm～75μm的细砂。
  8. 根据权利要求1所述的城市管廊污泥异位处理***，其特征在于：所述的脱水模块包括通过管道依次连接的污泥沉淀池、调理池和脱水机，所述的脱水机和污泥沉淀池分别通过各自管道连接到尾水处理模块；所述的调理池内设置搅拌装置；
    筛分模块得到的污泥通过管道输送到污泥沉淀池，经污泥沉淀池沉淀后得到下层泥浆，污泥沉淀池的下层泥浆通过管道依次输送到调理池和脱水机，经脱水机脱水后得到尾水和泥饼；脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水处理模块。
  9. 根据权利要求8所述的城市管廊污泥异位处理***，其特征在于：所述的尾水处理模块包括尾水沉淀池和尾水一体化处理设备，所述的脱水机脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水沉淀池，经尾水沉淀池沉淀后得到的上层尾水进入到尾水一体化处理设备；
    所述的尾水一体化处理设备上设有尾水入口、药剂入口和出口，处理后的尾水从出口排出；所述的出口通过管道连接到筛分模块。
  10. 根据权利要求9所述的城市管廊污泥异位处理***，其特征在于：
    所述的集泥模块中加入了第一药剂，所述的尾水一体化处理设备中加入了第二药剂；所述的调理池中加入了调理剂；
    所述的第一药剂包括稳定剂、氧化剂、还原剂、调理剂和絮凝剂；所述的第二药剂包括稳定剂、氧化剂、还原剂和絮凝剂；
    所述的稳定剂为碱性稳定剂、磷酸盐稳定剂、硫化物稳定剂、铁盐稳定剂、硅酸盐稳定剂、矿物质稳定剂、生物炭中的一种或多种；
    所述的氧化剂为Fenton试剂；
    所述的还原剂为亚硫酸盐；
    所述的调理剂为聚合氯化铁和聚丙烯酰胺；
    所述的絮凝剂为聚合氯化铝和聚丙烯酰胺。
  11. 根据权利要求9所述的城市管廊污泥异位处理***，其特征在于：所述的处理***还包括药剂制备模块，所述的药剂制备模块用于制备调理池、集泥模块以及尾水处理模块生化处理时所需的药剂；所述的药物制备模块包括溶药装置和储水罐，所述的溶药装置设有搅拌装置、原料入口、水入口和药剂出口，所述的搅拌装置设置在溶药装置内部，所述的水入口与储水罐连通；所述的药剂出口通过管道分别与尾水一体化处理设备、调理池和集泥模块连接。
  12. 根据权利要求1所述的城市管廊污泥异位处理***，其特征在于：所述的处理***还包括资源化模块，所述的资源化模块用于对脱水模块得到的泥饼进行回收利用。
  13. 一种城市管廊污泥异位处理方法，其特征在于：具体步骤如下：
    S1：采用集泥模块收集排入的污泥，并对污泥进行均质均量处理；
    S2：采用筛分模块对步骤S1得到的污泥进行多级筛分去杂；
    S3：采用脱水模块对步骤S2得到的污泥中进行脱水减容处理，得到尾水和泥饼；
    S4：采用尾水处理模块对尾水进行生化处理。
  14. 根据权利要求13所述的一种城市管廊污泥异位处理方法，其特征在于：步骤S3中所述的脱水模块包括通过管道依次连接的污泥沉淀池，调理池和脱水机，所述的脱水机和污泥沉淀池分别通过各自管道连接到尾水处理模块；步骤S3的具体过程如下：筛分模块得到的污泥通过管道输送到污泥沉淀池，沉淀后得到的下层泥浆经过调理池调理后，再经过脱水机脱水，脱水后得到尾水和泥饼；脱水后得到的尾水以及污泥沉淀池沉淀后得到的上层尾水均进入到尾水处理模块进行生化处理。
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