CN202337722U - Wastewater comprehensive treatment system of dangerous waste disposal center - Google Patents
Wastewater comprehensive treatment system of dangerous waste disposal center Download PDFInfo
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- CN202337722U CN202337722U CN2011203725160U CN201120372516U CN202337722U CN 202337722 U CN202337722 U CN 202337722U CN 2011203725160 U CN2011203725160 U CN 2011203725160U CN 201120372516 U CN201120372516 U CN 201120372516U CN 202337722 U CN202337722 U CN 202337722U
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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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- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
Abstract
本实用新型涉及一种危险废物处置中心废水综合处理系统，包括依次连接的预处理系统、MBR生物处理系统、后处理系统、污泥浓缩脱水系统，预处理系统包括均质调节系统和重金属反应沉淀系统，MBR生物处理系统包括水解酸化池、MBR系统，后处理系统包括过滤吸附装置和消毒装置，污泥浓缩脱水系统包括污泥储池和污泥浓缩脱水装置。本实用新型适合于处理重金属含量高、可生化性差以及水质波动较大的危险废物处置中心综合废水，可以达到回用水标准，无二次污染，长期运行可行性较强，其实施运用不受国外技术限制。
The utility model relates to a waste water comprehensive treatment system in a hazardous waste disposal center, comprising a pretreatment system, an MBR biological treatment system, a posttreatment system, and a sludge concentration and dehydration system connected in sequence, and the pretreatment system includes a homogeneous adjustment system and a heavy metal reaction precipitation system System, MBR biological treatment system includes hydrolytic acidification tank, MBR system, post-treatment system includes filter adsorption device and disinfection device, sludge concentration and dewatering system includes sludge storage tank and sludge concentration and dehydration device. The utility model is suitable for treating the comprehensive wastewater of hazardous waste disposal centers with high heavy metal content, poor biodegradability and large fluctuations in water quality. It can reach the water reuse standard, has no secondary pollution, and has strong feasibility for long-term operation. Its implementation and application are not subject to foreign regulations. technical limitations.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, in particular, relates to a kind of Hazardous wastes and disposes center waste water total system.
Background technology
1, Hazardous wastes is disposed center waste water overview
Hazardous wastes is meant the refuse that can bring significant threat in operation, storage, transportation, processing with when mishandling to HUMAN HEALTH or environment.Along with industrial expansion, the Hazardous wastes of Industrial processes discharging is increasing.According to estimates, the annual Hazardous wastes generation in the whole world is 3.3 hundred million tons.Because severe contamination and potential that Hazardous wastes brings have a strong impact on, the supervision of its safe handling disposal and whole process receives much concern.
The useless disposal center of danger major function is that the Hazardous wastes that derives from society is handled.Wherein, low heat value refuse (liquid) carries out materialization to be handled and fully utilizes, and flammable Hazardous wastes burns, and inorganic Hazardous wastes carries out stabilization/curing or security landfill.
The useless disposal center of danger waste water is mainly derived from heavy metal-containing waste water (liquid), refuse transport trolley car wash water, temporary library, burning mill floor wash-down water, the draining of chemical examination laboratory building, security landfill field percolate, early-stage rainwater (referring near preceding 10～20 minutes rainwater that the on-site main production plant is) and sanitary wastewater etc.Useless center material source and kind influence owing to endangered, and waste water has water quality, water yield fluctuation is big, and pollutant component is complicated, typical feature such as heavy metal content such as chromium, cadmium, arsenic, mercury, lead, zinc, barium height, biodegradability difference.
2, heavy metal wastewater thereby conventional treatment process
In order to eliminate the pollution of heavy metal wastewater thereby to environment; People have carried out a large amount of research to the treatment technology of heavy metal wastewater thereby (liquid); Up to the present, main treatment process has electrolytic reduction, chemical precipitation method, ion exchange method, r-o-and electroosmose process etc.Using at present is molysite-lime precipitation the most widely.
Molysite-lime method has treatment effect preferably for the cadmium in the sewage, chromium, arsenic etc.Because Fe (OH)
3, Fe (OH)
2Cohesion and adsorptivity for the colloidal particle in the water are very strong, and molysite is used to remove cadmium, arsenic and lead, zinc, barium etc. and can be used as heavy altogether agent; And removal Cr
6+The time can be used as reductive agent, therefore in waste water, contain Cr
6+The time divalent iron salts that adopt more.Molysite-lime precipitation has the advantage that one-time investment is little, working cost is low, operational administrative is easy.Its typical process flow is as shown in Figure 1, and waste water adds after molysite, lime and the flocculation agent successively, removes pollutents such as heavy metal, partial organic substances and SS through precipitating action, but the water outlet qualified discharge.
Compare with general heavy metal wastewater thereby; Hazardous wastes is disposed center waste water and is comprised the water outlet of materialization system, sewage, early-stage rainwater and landfill percolate etc. interior; COD in the waste water, BOD content are higher, and composition is more complicated, adopts traditional technology to be difficult to satisfy the water outlet requirement.
3, membrane bioreactor
(MBR) be a kind of novel, wastewater processing technology efficiently, this process using membrane filtration replaces the technology of secondary sedimentation basins in traditional biochemical processing.MBR is made up of membrane module and bio-reactor, and according to the array mode of membrane module and bio-reactor and the type of bio-reactor, MBR can be divided into three types of separated type, integral type and combined types.Compare with conventional biologic process for treating sewage, the main advantage of MBR technology has:
1) can carry out solid-liquid separation efficiently, separating effect is much better than traditional settling tank, stable effluent quality, but and reuse, realize sewage recycling;
2) film has efficient crown_interception, and mikrobe is trapped in the reactor drum fully, the separating fully of HRT (hydraulic detention time) and SRT (sludge retention time) in the realization response device first on the wastewater treatment history, makes operation control more stable; Microorganism concn is high in the reactor drum, anti impulsion load;
3) mud is long age, and membrane sepn makes the macromole difficult degradation composition in the sewage that enough residence time arranged in bio-reactor, has improved the degradation efficiency of hardly degraded organic substance greatly;
4) reactor drum is at high sludge loading, low sludge loading, and long mud moves down age, and excess sludge discharge is few, and sludge treatment and disposal costs are low;
5) be beneficial to and breed holding back, grow and breeding of nitrobacteria slowly, system's nitrification efficiency is improved, and the change through operation scheme also can have denitrogenation and phosphorus removal functional;
6) can realize whole-course automation control, be convenient to management; Floor space is little, facility compact.
MBR is promoted in the world fast after the nineties, and at present membrane bioreactor has been successfully applied to that municipal sewage treatment and architectural intermediate water reuse, Industrial Wastewater Treatment, micro-polluted drinking water purify, fecal sewage is handled, landfill field/fields such as compost percolate processing.
Summary of the invention
The utility model provides a kind of Hazardous wastes to dispose center waste water total system; Can handle the bigger Hazardous wastes of heavy metal content height, biodegradability difference and variation water quality and dispose the center comprehensive wastewater; Reach the reuse water standard, solve the defective that prior art exists.
The utility model solves the technical scheme that its technical problem adopted: a kind of Hazardous wastes is disposed center waste water total system; It is characterized in that, comprise the pretreatment system, MBR biological treatment system, after-treatment system, the sludge concentration and dewatering system that connect successively.
A kind of Hazardous wastes is disposed center waste water total system; Said pretreatment system comprises: homogeneous regulation system and heavy metal reaction precipitation system; Said homogeneous regulation system comprises all kinds of waste water lift pumps, the grid that scums and the wastewater equalization pond of regulating water quality and quantity; Said heavy metal reaction precipitation system comprises the reduction pond, neutralization tank and the flocculation basin that are provided with whipping appts, the settling tank to this reaction member adds the adding equipment of reductive agent/alkali/coagulating agent/coagulant aids and is arranged on flocculation basin after that connects successively, and the connecting pipeline and the valve of connection successively is set between said equalizing tank, reduction pond, neutralization tank, flocculation basin, the settling tank;
Said MBR biological treatment system comprises: the complicated macromolecular hydrolysis acidification pool of degrading; The MBR system of further degradation of organic substances; Said MBR system comprises reaction tank, MBR assembly, aerating system, back-purge system; Be connected intake pump in this MBR system, go out water pump, connecting pipeline and the valve that connects successively is set between hydrolysis acidification pool and the MBR system;
Said after-treatment system comprises: filtering adsorpting device, sterilizing unit and connecting pipeline thereof and valve; This filtering adsorpting device water-in is connected with the water collecting basin water outlet; The sterilizing unit water-in is connected with the filtering adsorpting device water outlet, and water outlet can be used as reuse water after sterilizing unit is handled.
Said sludge concentration and dewatering system comprises: mud storage pond, sludge concentration and dewatering device; Between mud storage pond and pretreatment system, the MBR biological treatment system mud pipeline and valve are set, what connection successively was set between mud storage pond and the thickening device advances dredge pump, connecting pipeline and valve.
The beneficial effect of the utility model is specific as follows:
1, the utility model is applicable to that handling the bigger Hazardous wastes of heavy metal content height, biodegradability difference and variation water quality disposes the center comprehensive wastewater;
2, the Hazardous wastes of handling through the utility model is disposed the center comprehensive wastewater, and water outlet each item index can satisfy the requirement of CJ/T48-1999 " miscellaneous domestic water quality standard ", can be used for the on-site reuse, reaches the requirement of zero release;
3, the waste residue that produces in the production process is sent into Hazardous wastes landfill yard landfill after solidifying, do not produce " secondary pollution ";
4, operational feasibility and anti-load impact property are strong, and system can steady in a long-term move;
5, heavy metal gets into solid phase with precipitation forms in the waste water, can recycle through effective means;
6, the utility model is the autonomous innovation technology, and it is implemented utilization and not limited by foreign technology.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below:
Fig. 1 is heavy metal wastewater thereby typical process flow figure,
Fig. 2 is that the utility model Hazardous wastes is disposed center waste water comprehensive treating process flow process and system diagram, illustrates a kind of embodiment that the utility model Hazardous wastes is disposed center waste water total system.
Embodiment
As shown in Figure 2, the utility model Hazardous wastes is disposed center waste water total system and is comprised pretreatment system, MBR biological treatment system, after-treatment system, sludge concentration and dewatering system, wherein:
Pretreatment system comprises: homogeneous regulation system and heavy metal reaction precipitation system; Said homogeneous regulation system comprises the grid that scums 1 and wastewater equalization pond 2 that is installed in wastewater equalization pond 2 one sides of regulating water quality and quantity, and said heavy metal reaction precipitation system comprises that the reaction member that is provided with whipping appts that connects successively is for reduction pond 4, neutralization tank 6 and flocculation basin 8, add first adding equipment 3, second adding equipment 5, the 3rd adding equipment 7 of acid and reductive agent, alkali, coagulating agent/coagulant aids respectively to reaction member.
Reduction reaction pond 4 is connected in that first adding equipment 3, neutralization reaction pond 6 are connected in second adding equipment 5, flocculation tank 8 is connected in the 3rd adding equipment 7, and flocculation tank 8 is connected in vertical sedimentation tank 9.
Said in this embodiment heavy metal reaction precipitation system, it is 2-3 that pH are regulated in reduction reaction pond 4, it is 8-9 that pH are regulated in neutralization reaction pond 6.
Between reduction reaction pond 4, neutralization reaction pond 6, flocculation tank 8, the precipitin reaction pond 9 connecting pipeline and valve are set, 9 back, perpendicular stream precipitin reaction pond connect intermediate pool 10, and said apparatus connects the mud that produces entering sludge concentration and dewatering system of back institute.
In order to tackle variation water quality; Realize the automatic operating of heavy metal reaction precipitation system; The automatic control system (not marking among the figure) of heavy metal reaction precipitation system is set, the automatic adjusting control that this automatic control system adopts existing automatic control technology to realize pH value in the waste water, the isoparametric automatic detection of redox potential and adds dose.
Said MBR biological treatment system comprises: the complicated macromolecular hydrolysis acidification pool 11 of degraded that connects intermediate pool 10; Hydrolysis acidification pool 11 connects the MBR system 12 of further degradation of organic substances; The mud that produces get into sludge treating system, be provided with connecting pipeline and valve between the said apparatus.
MBR system 12 back connect water collecting basin 13.
Said in this embodiment MBR system, back-purge system comprises automatic control device and pickler, and this automatic control device realizes that operation and the back flushing of MBR control automatically, and pickler comprises sour storage tank, the sour case of agitation and dilution, acid picking pump, pipeline and valve.
Said in this embodiment MBR system adopts immersion MBR, tubular fibre formula film, membrane flux 12～18L/m
2H, GWR 20～25: 1, MBR assembly bottom is provided with the perforated pipe aerating regulation device and is used for MBR membrane module surface cleaning, forms circulating inside stream, and MBR system bottom is provided with the diaphragm type aerator, and it is aerobic to be used to supply with aerobe.
Said after-treatment system comprises: filtering adsorpting device and sterilizing unit; This filtering adsorpting device comprises the activated charcoal filter 14 that is connected with water collecting basin 13; Water collecting basin 13 water outlets are through activated charcoal filter 14; Get into after 15 sterilizations of disinfection by chlorine dioxide pond, water outlet can reach the reuse water standard, gets into reuse pool 16 temporary or direct reuses.
Water pump, pipeline and the valve that is connected successively is set between activated charcoal filter 14 and the reuse pool 16, is used for the regular back flushing of strainer.
After-treatment system can adopt in other embodiments: a kind of in (sand filtration)+gac+uv/ozone/Youxiaolin/disinfection by chlorine dioxide.
The unified sludge concentration and dewatering system that gets into of the mud that produces in the utility model systematic procedure handles; The sludge concentration and dewatering system comprises that storage basin 17, gravity concentration basin 18, plate-and-frame filter press 19 connect successively among this embodiment; Be provided with the connecting pipeline and the valve that connect successively between the device, after plate-and-frame filter press gained mud cake solidifies, get into Hazardous wastes landfill yard landfill disposal.
The mud in reduction reaction pond 4, neutralization reaction pond 6, perpendicular stream precipitin reaction pond 9 gets into storage basin 17; Gravity concentration basin 18 is connected with wastewater equalization pond 2; The said pipe connection that is connected to.
The chemicals dosing plant of said pretreatment system comprises grug feeding jar and automatic control system; The back-purge system of said MBR system comprises automatic control device and pickler, and this automatic control device realizes that operation and the back flushing of MBR control automatically, and pickler comprises the sour case of sour storage tank, agitation and dilution, acid picking pump, pipeline and the valve that connects successively; The aerating system of said MBR system comprises perforated pipe aerating regulation device and diaphragm type aerator; Said sludge concentration and dewatering equipment is plate-and-frame filter press or centrifuge or belt water extracter; Said MBR system air-supply arrangement is a blower fan.
Claims (9)
1. a Hazardous wastes is disposed center waste water total system, it is characterized in that, comprises the pretreatment system, MBR biological treatment system, after-treatment system, the sludge concentration and dewatering system that connect successively;
Said pretreatment system comprises: homogeneous regulation system and heavy metal reaction precipitation system; Said homogeneous regulation system comprises all kinds of waste water lift pumps, the grid that scums and the wastewater equalization pond of regulating water quality and quantity; Said heavy metal reaction precipitation system comprises that the reaction member that is provided with whipping appts that connects successively is reduction pond, neutralization tank and flocculation basin, the settling tank to this reaction member adds the adding equipment of reductive agent/alkali/coagulating agent/coagulant aids and is arranged on flocculation basin after, is provided with the connecting pipeline and the valve of connection successively between said equalizing tank, reduction pond, neutralization tank, flocculation basin, the settling tank;
Said MBR biological treatment system comprises: the complicated macromolecular hydrolysis acidification pool of degrading; The MBR system of further degradation of organic substances; Said MBR system comprises reaction tank, MBR assembly, aerating system, back-purge system; Be connected intake pump in this MBR system, go out water pump, connecting pipeline and the valve that connects successively is set between hydrolysis acidification pool and the MBR system;
Said after-treatment system comprises: connecting pipeline and valve between filtering adsorpting device, sterilizing unit reach; This filtering adsorpting device water-in is connected with the water collecting basin water outlet; The sterilization pool water-in is connected with the filtering adsorpting device water outlet, but the water of reuse after the discharge of sterilizing unit water outlet is handled;
Said sludge concentration and dewatering system comprises: mud storage pond, sludge concentration and dewatering device; Between mud storage pond and pretreatment system, the MBR biological treatment system mud pipeline and valve are set, what connection successively was set between mud storage pond and the thickening device advances dredge pump, connecting pipeline and valve.
2. a kind of Hazardous wastes according to claim 1 is disposed center waste water total system, it is characterized in that the chemicals dosing plant of said pretreatment system comprises grug feeding jar and automatic control system.
3. a kind of Hazardous wastes according to claim 1 is disposed center waste water total system; It is characterized in that; The back-purge system of said MBR system comprises automatic control device and pickler; Operation and the back flushing of this automatic control device realization MBR are controlled automatically, and pickler comprises sour storage tank, agitation and dilution acid case, acid picking pump, pipeline and the valve that connects successively.
4. a kind of Hazardous wastes according to claim 1 is disposed center waste water total system, it is characterized in that, the aerating system of said MBR system comprises perforated pipe aerating regulation device and diaphragm type aerator.
5. dispose center waste water total system according to claim 1,2,3 or 4 described a kind of Hazardous wastess; It is characterized in that; Said after-treatment system comprises filtering adsorpting device and sterilizing unit; Activated charcoal filter is connected with water collecting basin, and the water collecting basin water outlet gets into the disinfection by chlorine dioxide pond through activated charcoal filter.
6. a kind of Hazardous wastes according to claim 5 is disposed center waste water total system, it is characterized in that said sludge concentration and dewatering equipment is plate-and-frame filter press or centrifuge or belt water extracter.
7. a kind of Hazardous wastes according to claim 6 is disposed center waste water total system, it is characterized in that, said MBR system air-supply arrangement is a blower fan.
8. a kind of Hazardous wastes according to claim 1 is disposed center waste water total system, it is characterized in that adding equipment is first adding equipment, second adding equipment, the 3rd adding equipment; The reduction reaction pond is connected in that first adding equipment, neutralization reaction pond are connected in second adding equipment, flocculation tank is connected in the 3rd adding equipment.
9. a kind of Hazardous wastes according to claim 1 is disposed center waste water total system, it is characterized in that, said MBR system; Adopt immersion MBR; Tubular fibre formula film, MBR assembly bottom is provided with the perforated pipe aerating regulation device, and MBR system bottom is provided with the diaphragm type aerator;
Water pump, pipeline and valve are set between activated charcoal filter and the reuse pool;
The sludge concentration and dewatering system comprises that storage basin, gravity concentration basin, plate-and-frame filter press connect successively, is provided with connecting pipeline and valve between the device, after plate-and-frame filter press gained mud cake solidifies, gets into the Hazardous wastes landfill yard;
The mud in reduction reaction pond, neutralization reaction pond, perpendicular stream precipitin reaction pond gets into storage basin; The gravity concentration basin is connected with wastewater equalization pond; The said pipe connection that is connected to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203725160U CN202337722U (en) | 2011-09-27 | 2011-09-27 | Wastewater comprehensive treatment system of dangerous waste disposal center |
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| CN2011203725160U CN202337722U (en) | 2011-09-27 | 2011-09-27 | Wastewater comprehensive treatment system of dangerous waste disposal center |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372400A (en) * | 2011-09-27 | 2012-03-14 | 北京机电院高技术股份有限公司 | Hazardous waste handling center waste water integrated treatment system and method |
| CN102775029A (en) * | 2012-08-23 | 2012-11-14 | 中冶华天工程技术有限公司 | Advanced municipal wastewater treatment system and method |
| CN102774987A (en) * | 2012-07-24 | 2012-11-14 | 吴江市聚力机械有限公司 | Desizing wastewater treatment device |
| CN103466839A (en) * | 2013-09-26 | 2013-12-25 | 东莞玖龙纸业有限公司 | A kind of treatment method of ink waste water |
| CN108383275A (en) * | 2018-03-10 | 2018-08-10 | 杭州更蓝生物科技有限公司 | A kind of environment-friendly type heavy metal industrial effluent processing system |
| CN109231706A (en) * | 2018-10-30 | 2019-01-18 | 贵州明俊雅正生态环境科技有限公司 | A kind of Novel medical mechanism wastewater treatment discharges integrating device and processing method |
| CN109384348A (en) * | 2017-08-14 | 2019-02-26 | 上海同昕环境科技有限公司 | A kind of waste water treatment system and method containing heavy metal |
| CN113321351A (en) * | 2021-08-02 | 2021-08-31 | 清大国华环境集团股份有限公司 | Method for treating cadmium wastewater and solidifying cadmium slag |
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2011
- 2011-09-27 CN CN2011203725160U patent/CN202337722U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372400A (en) * | 2011-09-27 | 2012-03-14 | 北京机电院高技术股份有限公司 | Hazardous waste handling center waste water integrated treatment system and method |
| CN102372400B (en) * | 2011-09-27 | 2013-07-03 | 北京机电院高技术股份有限公司 | Hazardous waste handling center waste water integrated treatment system and method |
| CN102774987A (en) * | 2012-07-24 | 2012-11-14 | 吴江市聚力机械有限公司 | Desizing wastewater treatment device |
| CN102775029A (en) * | 2012-08-23 | 2012-11-14 | 中冶华天工程技术有限公司 | Advanced municipal wastewater treatment system and method |
| CN103466839A (en) * | 2013-09-26 | 2013-12-25 | 东莞玖龙纸业有限公司 | A kind of treatment method of ink waste water |
| CN109384348A (en) * | 2017-08-14 | 2019-02-26 | 上海同昕环境科技有限公司 | A kind of waste water treatment system and method containing heavy metal |
| CN108383275A (en) * | 2018-03-10 | 2018-08-10 | 杭州更蓝生物科技有限公司 | A kind of environment-friendly type heavy metal industrial effluent processing system |
| CN109231706A (en) * | 2018-10-30 | 2019-01-18 | 贵州明俊雅正生态环境科技有限公司 | A kind of Novel medical mechanism wastewater treatment discharges integrating device and processing method |
| CN109231706B (en) * | 2018-10-30 | 2023-09-19 | 贵州明俊雅正生态环境科技有限公司 | Novel medical institution wastewater treatment and discharge integrated device and treatment method |
| CN113321351A (en) * | 2021-08-02 | 2021-08-31 | 清大国华环境集团股份有限公司 | Method for treating cadmium wastewater and solidifying cadmium slag |
| CN113321351B (en) * | 2021-08-02 | 2021-11-12 | 清大国华环境集团股份有限公司 | Method for treating cadmium wastewater and solidifying cadmium slag |
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