CN105948272A - System and method for removing pathogenic bacteria in sanitary sewage of mountain town - Google Patents
System and method for removing pathogenic bacteria in sanitary sewage of mountain town Download PDFInfo
- Publication number
- CN105948272A CN105948272A CN201610539572.6A CN201610539572A CN105948272A CN 105948272 A CN105948272 A CN 105948272A CN 201610539572 A CN201610539572 A CN 201610539572A CN 105948272 A CN105948272 A CN 105948272A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biotechnology (AREA)
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- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a system and a method for removing pathogenic bacteria in sanitary sewage of a mountain town, and belongs to the technical field of sewage treatment. The system comprises an inflow grit chamber and three treatment tanks in turn, the three treatment tanks are connected to one another in turn, and include a front treatment tank, a middle treatment tank and a rear treatment tank in turn, front treatment tank, the middle treatment tank and the rear treatment tank are connected to one another step by step from high to low, a self-flow passageway is arranged by means of an elevation difference formed by the natural landform of a mountain area, the front treatment tank and the middle treatment tank are downflow tanks, the middle treatment tank is an upflow tank, infiltration media are placed in the treatment tanks, and a pipy water distribution system is arranged at the bottom of the middle treatment tank, so that water upflows uniformly to enter the above infiltration media. According to the system and the method for removing the pathogenic bacteria in the sanitary sewage of the mountain town disclosed by the invention, on the basis of existing constructed wetlands, several removing means including biological carbon, protozoan predation, plant bacteriostasis, internalization and the like are combined to establish a multi-level wetland system to achieve the purpose of removing the pathogenic bacteria in water, and the system can be popularized for the sanitary sewage treatment of centralized residential areas in mountain areas.
Description
Technical field
The present invention relates to mountain area town domestic sewage pathogen and remove system and minimizing technology thereof, belong to technology of waste water control field,
The natural removal of pathogen and purification in the sanitary sewage of concentration residential area, rural area.
Background technology
China's major part rural area, because of the reason such as fund and technology, lacks the environmental infrastructure of sanitary sewage disposal, and sanitary wastewater is several
, there is the pollution of area source such as substantial amounts of livestock and poultry cultivation and farmland organic fertilizer application in directly discharge simultaneously.Cause of disease in these polluter
Bacterium (such as E. coli, Salmonella Salmonella etc.) pollutes and can cause many diseases of the mankind, including dysentery, influenza,
Infectious hepatitis, gastroenteritis, cholera etc., serious even causes septicemia, serious threat Drinking Water for Residents safety.With greatly
As a example by enterobacteria O157:H7, since the eighties in 20th century, there occurs repeatedly Escherichia coli O 157 in the world: H7's
Infect popular, about 396, Scotland O:157 escherichia coli suspected infection case between on November 22nd, 1996 to December 11 days,
Wherein 216 examples are patient, 11 example adult's deads.In mid-May, 2011, break out enterohemorrhagic Escherichia coli in Germany dirty
The event of dye vegetable, Europe is multinational has had been found that similar case, and 30 people die, and infect case 2263 example.According to 1999
Assessment, there are 75000 example coli-infections in the U.S., and causes about 600 people dead every year, O157:H7 hypotype large intestine bar
Bacterium is the main cause of disease.The situation of China is the most similar, and it is 1999 that a most serious Escherichia coli O157 infects outburst
In spring in year, outburst domestic extensive Escherichia coli O157 first in Xuzhou City's infects, and causes Accompanied by Acute Renal Failure 147 of suffering from diarrhoea
Example, wherein 118 examples are dead, and mortality rate is up to 80%.In recent years, by the microbial infectious diarrhea of the cause of disease in natural environment
Still there is obvious ascendant trend with other diseases, human health is constituted serious threat.And the most unordered the dividing in villages and small towns, China mountain area
Dissipating formula sewage discharge feature causes water body pathogen contamination situation more acute, therefore sick for mountain area centralized sanitary sewage water body
The removal technical research of former bacterium is extremely urgent.
Artificial Wetland Techniques, with its small investment, runs the advantages such as funds are low, maintenance management is convenient, in rural decentralized wastewater process side
There is some superiority in face, the most domestic application to artificial swamp mainly concentrates it to conventional pollution such as organic pollution, nitrogen and phosphorus
The removal of thing, removes concern to its pathogenic microorganism relatively fewer.
Summary of the invention
It is an object of the invention to: remove the technical deficiency of pathogen for existing artificial swamp, be particularly directed to mountain area simultaneously
The unordered dispersibility of town domestic sewage discharge, it is provided that one way of life sewage pathogen concentrates minimizing technology, is used for removing in sewage
Pathogen, this system is reasonable in design, simple structure, and after process, sewage can reach corresponding Hygienic Standard, can be as agriculture after discharge
Industry irrigation water or view supplement water.
Concrete technical scheme is:
. mountain area town domestic sewage pathogen removes system, includes into water setting pot and composite vertical current artificial wetland successively, described
Composite vertical current artificial wetland include three process ponds being sequentially connected with, be followed successively by forebay, middle pond and after-bay, three process ponds
Connecting the most step by step, the depth displacement utilizing mountain area physical relief to be formed is arranged from circulation road, thus removes in water stream channel
Pathogen or inactivation；Forebay and after-bay are current downstream tank, and middle pond is the up ponds of current；It is placed with filtration media in processing pond；
Tubulose water distribution system is set bottom middle pond, so that being advanced into the filtration media of top on uniform fluid flow.
Bottom described three process pond wetlands and all round closure have impervious barrier；Described filtration media is followed successively by soil from top to bottom
Earth, charcoal, rubble and cobble；Thickness of soil is 30cm, charcoal thickness 20cm, rubble and cobble thickness 30cm.
. mountain area town domestic sewage pathogen removes the minimizing technology of system, and including procedure below, three process plantation in the soil of pond
Plant, utilizes the bacteriostasis of secretions from plant roots, accelerates water body pathogen inactivation and dead, simultaneously by root system of plant and
The internalization of stem stalk, reduces pathogen and retains quantity in water body；Culture soil protozoacide in soil, by primary dynamic
Thing predation pathogen, in reducing wetland, pathogen retains quantity.
Described plant is Rhizoma Bergeniae purpurascentis, Rhizoma Alismatis, Phyllostachys congesta；Described Soil Protozoan is oar foot class, ciliate, nematicide.Wet
Ground substrate periodic replacement or harvesting, make wet land system pathogen system removal ability be maintained.
Mainly pass through to retain and eliminate two approach after pathogen enters natural environment in sewage to be removed.Retaining of pathogen,
Mainly include the processes such as filtration and absorption；The elimination of pathogen, mainly include inactivation, natural death, compete, the process such as predation.
Although artificial swamp is considered to remove an effective means of pathogen, Traditional Man wetland or biofilter technology retain pathogen
Effect still has certain limitation, and pathogen is it is possible to continue to pollute earth's surface, downstream and subsoil water, and therefore its actual application should be in conjunction with more
Many removal mechanisms at work；The present invention increases charcoal, can improve E.coli removal efficiency；It is simultaneously based on various plants and removes pathogen
Approach (inhibitory action that root exudates causes and internalization) and animal (such as oar foot class, ciliate, nematicide etc.) predation
The principle of pathogen (such as E.coli), filters out several special water plant, as local Chinese herbal medicine Rhizoma Bergeniae purpurascentis, Rhizoma Alismatis and other
Emergent aquactic plant, such as Phyllostachys congesta etc., utilizes root exudates inhibitory action and plant internalization to remove the pathogen in water body environment.
The mountain area town domestic sewage pathogen that the present invention provides removes system and minimizing technology thereof, in existing artificial swamp mechanism
On, in conjunction with charcoal, protozoacide predation, plant is antibacterial and the combination of the multiple removal means such as internalization, builds multistage wetland system
System reaches to remove the purpose of the former bacterium of disease caused by infectious water, can carry out being applicable in the domestic sewage treatment of concentration residential area, mountain area.
Present invention advantage compared with prior art is:
(1) present invention utilizes the composite vertical current artificial wetland of mountain area nature gradient design to be suitable for the application in mountain villages area, if
Meter is simple, and operating cost is few and the impact of climate condition is less.
(2) present invention is by Chinese herbal medicine root exudates bacteriostasis and emergent aquactic plant internalization and artificial swamp filtering function
Superposition, the present invention also contemplates the predation of the soil animal such as ciliate in wetland topsoil simultaneously, and devises table accordingly
Face soil+plant+animal comprehensive processes layer, systematically considers the organic assembling of multiple removal means, filters effect than Single Medium
Fruit is more notable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the downstream tank cross-sectional view of the present invention；
Fig. 3 is the up pond cross-sectional view of the present invention；
Fig. 4 is the up pond tubulose water distribution system structural representation of the present invention.
Detailed description of the invention
The detailed description of the invention of the accompanying drawings present invention.
As it is shown in figure 1. mountain area town domestic sewage pathogen removes system, includes successively into water setting pot 1 and composite vertical current
Artificial swamp, described composite vertical current artificial wetland includes three process ponds being sequentially connected with, is followed successively by forebay 2, middle pond 3
With after-bay 4, three process pond and connect the most step by step, and the depth displacement utilizing mountain area physical relief to be formed is arranged from circulation road,
Thus in water stream channel, remove pathogen or inactivation；As in figure 2 it is shown, forebay 2 and after-bay 4 are current downstream tank, such as Fig. 3
Shown in, middle pond 3 is the up ponds of current；It is placed with filtration media in processing pond；As shown in Figure 4, bottom middle pond 3, tubulose is set
Water distribution system 8, so that being advanced into the filtration media of top on uniform fluid flow.
Water inlet setting pot 1 overflows in forebay 2 from top edge, tubular cloth water system bottom outlet and middle pond 3 bottom forebay 2
System 8 connection, the top overflow water outlet of middle pond 3, to after-bay 4, has outlet 7, outlet 7 to have valve 6 bottom after-bay 4.
Bottom described three process pond wetlands and all round closure have impervious barrier；Described filtration media is followed successively by soil from top to bottom
Earth A, charcoal B, rubble and cobble C；Soil A thickness is 30cm, charcoal B thickness 20cm, rubble and cobble C
Thickness 30cm.
. mountain area town domestic sewage pathogen removes the minimizing technology of system, and including procedure below, three process kind in the soil A of pond
Plant, utilizes the bacteriostasis of secretions from plant roots, accelerates water body pathogen inactivation and death, passes through root system of plant simultaneously
With the internalization of stem stalk, reduce pathogen and retain quantity in water body；Culture soil protozoacide in soil, by primary
Animal predation pathogen, in reducing wetland, pathogen retains quantity.
Described plant is Rhizoma Bergeniae purpurascentis, Rhizoma Alismatis, Phyllostachys congesta.Wetland Substrate periodic replacement or harvesting, make wet land system pathogen system
Removal ability is maintained.
Should. mountain area town domestic sewage pathogen removes system, inhalant region, and it is characterized by the pre-treatment into water setting pot 1,
By bulky grain thing sedimentations such as silts so that staying water smooth can enter treatment region.Treatment region, i.e. composite vertical current artificial
Wetland, is made up of step by step three artificial wetland treatment pool, and each to process pond filter medium the most identical, be respectively layer of plants, soil and
Protozoacide layer, biological layer of charcoal and cobble and metalling.First order forebay 2 is vertical current constructed wetland downstream tank, water (flow) direction
Being from top to bottom, its effect is larger particles and fraction of pathogens bacterium to be filtered out, and water body pathogen in top can pass through medium-height grass simultaneously
Medicine secretions from plant roots is antibacterial, plant internalization and Soil Protozoan predation remove pathogen.Pond 3 in the second level
Be the up pond of vertical current constructed wetland, first order forebay 2 water body come has not contained coarse granule impurity, by tubulose water distribution
Sewage transport is processed in the filtration media of upper strata by system 8, be detained water body again by Chinese herbal medicine root exudates antibacterial,
Plant internalization and Soil Protozoan predation remove pathogen.Third level after-bay 4 is also that vertical current constructed wetland is descending
Pond, in this coagulation, plant internalization antibacterial by Chinese herbal medicine root exudates and Soil Protozoan predation
Pathogen in water body is inactivated and removes by effect and each layer medium diafiltration again, makes water body be finally reached discharge standard.Each
Process the exhalant region in pond, have outlet and filter screen to constitute, prevent filtration media to run off.
Claims (6)
1. town domestic sewage pathogen in mountain area removes system, it is characterised in that: include successively into water setting pot (1) and be combined vertical
Direct current artificial swamp, described composite vertical current artificial wetland includes three process ponds being sequentially connected with, be followed successively by forebay (2),
Middle pond (3) and after-bay (4), three process pond and connect the most step by step, and the depth displacement utilizing mountain area physical relief to be formed is arranged
From circulation road；Forebay (2) and after-bay (4) are current downstream tank, and middle pond (3) are the up ponds of current；It is placed with in processing pond
Filtration media.
The most according to claim 1. mountain area town domestic sewage pathogen removes system, and described bottom, middle pond (3) sets
Put tubulose water distribution system (8), so that being advanced into the filtration media of top on uniform fluid flow.
The most according to claim 1. mountain area town domestic sewage pathogen removes system, it is characterised in that: described three
Bottom the wetland of individual process pond and all round closure have impervious barrier；Described filtration media is followed successively by soil (A), biology from top to bottom
Charcoal (B), rubble and cobble (C).
The most according to claim 3. mountain area town domestic sewage pathogen removes system, it is characterised in that: described soil
Earth (A) thickness is 30cm, charcoal (B) thickness 20cm, rubble and cobble (C) thickness 30cm.
5. according to described in any one of claim 1 to 4. mountain area town domestic sewage pathogen removes the minimizing technology of system,
It is characterized in that: include procedure below, three process planting plants in pond, utilize the bacteriostasis of secretions from plant roots, add
Speed water body pathogen inactivation and death, simultaneously by root system of plant and the internalization of stem stalk, reduce pathogen depositing in water body
Residual amount；Culture soil protozoacide, preys on pathogen by protozoacide, and in reducing wetland, pathogen retains quantity.
The most according to claim 5. mountain area town domestic sewage pathogen removes the minimizing technology of system, it is characterised in that:
Described plant is Rhizoma Bergeniae purpurascentis, Rhizoma Alismatis, Phyllostachys congesta；Described Soil Protozoan is oar foot class, ciliate, nematicide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539572.6A CN105948272A (en) | 2016-07-11 | 2016-07-11 | System and method for removing pathogenic bacteria in sanitary sewage of mountain town |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610539572.6A CN105948272A (en) | 2016-07-11 | 2016-07-11 | System and method for removing pathogenic bacteria in sanitary sewage of mountain town |
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| CN105948272A true CN105948272A (en) | 2016-09-21 |
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| CN201610539572.6A Pending CN105948272A (en) | 2016-07-11 | 2016-07-11 | System and method for removing pathogenic bacteria in sanitary sewage of mountain town |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554134A (en) * | 2016-11-23 | 2017-04-05 | 江南大学 | A kind of artificial wet land system and its application |
| CN108609813A (en) * | 2018-06-27 | 2018-10-02 | 成都工业学院 | A kind of mixed breed system and method for combination sanitary sewage disposal |
| CN109851055A (en) * | 2019-03-29 | 2019-06-07 | 武汉中科水生环境工程股份有限公司 | A kind of two-way self-cleaning anti-clogging composite vertical current artificial wetland |
| CN110550829A (en) * | 2019-10-09 | 2019-12-10 | 中国科学院、水利部成都山地灾害与环境研究所 | Tower type ecological purification integrated device for domestic sewage of small towns |
| CN113493249A (en) * | 2021-06-07 | 2021-10-12 | 江苏金陵环境股份有限公司 | Method for treating escherichia coli in tail water of sewage plant |
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| CN103693745A (en) * | 2014-01-13 | 2014-04-02 | 中国科学院水生生物研究所 | Compound constructed wetland processing method and device for runoff pollutants in rivers |
| CN205838687U (en) * | 2016-07-11 | 2016-12-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Mountain area town domestic sewage pathogen removes system |
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2016
- 2016-07-11 CN CN201610539572.6A patent/CN105948272A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103693745A (en) * | 2014-01-13 | 2014-04-02 | 中国科学院水生生物研究所 | Compound constructed wetland processing method and device for runoff pollutants in rivers |
| CN205838687U (en) * | 2016-07-11 | 2016-12-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Mountain area town domestic sewage pathogen removes system |
Non-Patent Citations (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554134A (en) * | 2016-11-23 | 2017-04-05 | 江南大学 | A kind of artificial wet land system and its application |
| CN108609813A (en) * | 2018-06-27 | 2018-10-02 | 成都工业学院 | A kind of mixed breed system and method for combination sanitary sewage disposal |
| CN108609813B (en) * | 2018-06-27 | 2024-03-05 | 成都工业学院 | Mixed culture method combined with domestic sewage treatment |
| CN109851055A (en) * | 2019-03-29 | 2019-06-07 | 武汉中科水生环境工程股份有限公司 | A kind of two-way self-cleaning anti-clogging composite vertical current artificial wetland |
| CN110550829A (en) * | 2019-10-09 | 2019-12-10 | 中国科学院、水利部成都山地灾害与环境研究所 | Tower type ecological purification integrated device for domestic sewage of small towns |
| CN110550829B (en) * | 2019-10-09 | 2024-04-02 | 中国科学院、水利部成都山地灾害与环境研究所 | Tower ecological purification integrated device of little town domestic sewage |
| CN113493249A (en) * | 2021-06-07 | 2021-10-12 | 江苏金陵环境股份有限公司 | Method for treating escherichia coli in tail water of sewage plant |
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Application publication date: 20160921 |