CN107459173A - The PH callback processing systems and its method of work of a kind of acid-base property contaminant water - Google Patents
The PH callback processing systems and its method of work of a kind of acid-base property contaminant water Download PDFInfo
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- CN107459173A CN107459173A CN201710818861.4A CN201710818861A CN107459173A CN 107459173 A CN107459173 A CN 107459173A CN 201710818861 A CN201710818861 A CN 201710818861A CN 107459173 A CN107459173 A CN 107459173A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to the PH callback processing systems and its method of work of water-treatment technology field, more particularly to a kind of acid-base property contaminant water, including：Water inlet pipe, regulating reservoir, PH readjustments pond；Regulating reservoir is arranged on the lower section of water inlet pipe；PH readjustments pond is arranged on the side of regulating reservoir, and PH readjustments pond is connected with regulating reservoir by sewage pump；Tube settler is arranged on the side in PH readjustments pond, and tube settler is connected with PH readjustments pond by pipeline；Intermediate reservoirs are arranged on the side of tube settler, and intermediate reservoirs are connected with tube settler by pipeline；More medium filter is arranged on the side of intermediate reservoirs, and more medium filter is connected with intermediate reservoirs by intermediate lift pump.The present invention passes through the improvement in structure, good sewage processing effect reasonable with system design, the strong advantage of system reliability, so as to effectively solve problem and shortage present in the existing apparatus proposed in above-mentioned background technology.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of PH callback processing systems of acid-base property contaminant water and its
Method of work.
Background technology
Sewage mainly has sanitary sewage, industrial wastewater and early-stage rainwater.
Wherein industrial wastewater derives from alkaline waste water caused by alkali cleaning in industrial production, acid waste water caused by pickling etc.,
Acid, alkali in waste water are unstable, suspension content is high, and with contents of many kinds of heavy metal ion and organic pollution, if these are dirty
Water is directly outer to be arranged, and will have a strong impact on ecological environment.
Existing sewage disposal system is complex, and treatment effect is poor, and system reliability is poor.
As described above the problem of middle proposition, this programme provides PH callback processing systems and its work of a kind of acid-base property contaminant water
Method, and the above-mentioned middle produced problem of solution is reached by the PH callback processing systems and its method of work of the acid-base property contaminant water
And deficiency, make it to have more practical purpose.
The content of the invention
It is an object of the invention to provide a kind of PH callback processing systems of acid-base property contaminant water and its method of work, with solution
The problem of system proposed in certainly above-mentioned background technology is complex, and treatment effect is poor, and system reliability is poor and deficiency.
The purpose of the present invention and effect, reached by technical scheme in detail below：A kind of PH readjustments of acid-base property contaminant water
Processing system, including：Water inlet pipe, regulating reservoir, PH readjustments pond, tube settler, intermediate reservoirs, more medium filter, backwater
Cistern, filter press, pipeline, coarse filtration net, sewage pump, first order reaction pond, second order reaction pond, third-order reaction pond, stirring
Machine, charge pump, inclined tube, discharge pipeline, sludge pump and intermediate lift pump；The regulating reservoir is arranged on the lower section of water inlet pipe；The PH
Readjustment pond is arranged on the side of regulating reservoir, and PH readjustments pond is connected with regulating reservoir by sewage pump；The tube settling
Pond is arranged on the side in PH readjustments pond, and tube settler is connected with PH readjustments pond by pipeline；The intermediate reservoirs are set
Put in the side of tube settler, and intermediate reservoirs are connected with tube settler by pipeline；The more medium filter
The side of intermediate reservoirs is arranged on, and more medium filter is connected with intermediate reservoirs by intermediate lift pump；Described time
Water cistern is arranged on the side of more medium filter；The discharge pipeline is connected by sludge pump with filter press.
Preferably, coarse filtration net and sewage pump are installed on described regulating reservoir.
Preferably, described PH readjustments pond includes first order reaction pond, second order reaction pond and third-order reaction pond, and one-level is anti-
Ying Chi, second order reaction pond and third-order reaction pond are mounted on mixer and charge pump.
Preferably, the inclination angle of described inclined tube is degree.
Preferably, described more medium filter is provided with recoil sewage draining exit, and the filter layer of more medium filter is by nothing
Bituminous coal, quartz sand filter media and activated carbon composition.
The method of work of the PH callback processing systems of above-mentioned acid-base property contaminant water：Acid-base property contaminant water is discharged into by water inlet pipe
Regulating reservoir, regulating reservoir can balanced water quality and water, coarse filtration net can be intercepted except the floating object in decontaminated water and bulky grain are miscellaneous
Matter, prevent pipeline or equipment from blocking, sewage is promoted to PH readjustments pond by sewage pump, and PH readjustments pond adjusts the pH value of sewage,
Sewage is entered in first order reaction pond, and PH conditioning agent sodium hydroxide solutions are added by charge pump, adjust the pH value of sewage 9~
In the range of 10, the water outlet of first order reaction pond adds oxidizing agent sodium hypochlorite from second order reaction pond is flowed into, by charge pump, aoxidizes sewage
In organic matter and ferrous ion, the water outlet of second order reaction pond adds flocculant poly from third-order reaction pond is flowed into by charge pump
Aluminium chloride, three reaction tanks in PH readjustments pond are mounted on mixer, can make that reaction is uniform, and reaction speed is fast, third-order reaction
Pond water outlet carries out flocculation reaction from inflow tube settler, and the hydrogen-oxygen sediment after flocculation reaction forms sludge and sinks to sludge
Struggle against, for the clear water above inclined tube from intermediate reservoirs are flowed into, clear water is promoted to more medium filter, multimedium mistake by intermediate lift pump
The filter layer of filter is made up of anthracite, quartz sand filter media and activated carbon, can effectively remove the bulky grain suspension in decontaminated water
And the organic matter of remaining, ensure that standard water discharge discharge or recovery, more medium filter are provided with recoil sewage draining exit, can make absorption
Dirt cleaning on filter layer departs from, and the water that is purified flows into backwater cistern, can be discharged or reuse, wherein dirty
Sludge in sludge bucket is delivered to filter press by dredge pump by discharge pipeline, and press filtration is transported outward after being processed into mud cake, and filtrate is back to tune
Save pond.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
1. the setting of the PH callback processing system regulating reservoirs of acid-base property contaminant water of the present invention, be advantageous to adjust balanced water quality water
Amount.
2. the setting in the PH callback processing systems PH readjustments pond of acid-base property contaminant water of the present invention, it is fully thorough to be advantageous to reaction
Bottom.
3. the setting of the PH callback processing system inclined tubes of acid-base property contaminant water of the present invention, it is unobstructed to be advantageous to spoil disposal.
4. the setting of the PH callback processing system more medium filters of acid-base property contaminant water of the present invention, it is dirty to be advantageous to purification
Water.
5. the present invention is strong by the improvement in structure, good sewage processing effect reasonable with system design, system reliability
Advantage, so as to effectively solve problem and shortage present in the existing apparatus proposed in above-mentioned background technology.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the process flow diagram of the present invention.
Fig. 3 is the tube settler structural representation of the present invention.
In figure：1st, water inlet pipe；2nd, regulating reservoir；3rd, PH adjusts back pond；4th, tube settler；5th, intermediate reservoirs；6th, multimedium
Filter；7th, backwater cistern；8th, filter press；9th, pipeline；201st, coarse filtration net；202nd, sewage pump；301st, first order reaction
Pond；302nd, second order reaction pond；303rd, third-order reaction pond；304th, mixer；305th, charge pump；401st, inclined tube；402nd, discharge pipeline；
403rd, sludge pump；501st, intermediate lift pump.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 to Fig. 3 is referred to, the present invention provides a kind of technical scheme：A kind of PH readjustment processing systems of acid-base property contaminant water
System, including：Water inlet pipe 1, regulating reservoir 2, PH readjustments pond 3, tube settler 4, intermediate reservoirs 5, more medium filter 6, backwater
Cistern 7, filter press 8, pipeline 9, coarse filtration net 201, sewage pump 202, first order reaction pond 301, second order reaction pond 302,
Third-order reaction pond 303, mixer 304, charge pump 305, inclined tube 401, discharge pipeline 402, sludge pump 403 and intermediate lift pump 501；
Regulating reservoir 2 is arranged on the lower section of water inlet pipe 1；PH readjustments pond 3 is arranged on the side of regulating reservoir 2, and PH readjustment ponds 3 and regulating reservoir 2
It is connected by sewage pump 202；Tube settler 4 is arranged on the side in PH readjustments pond 3, and tube settler 4 and PH is returned
Pond 3 is adjusted to be connected by pipeline 9；Intermediate reservoirs 5 are arranged on the side of tube settler 4, and intermediate reservoirs 5 sink with inclined tube
Shallow lake pond 4 is connected by pipeline；More medium filter 6 is arranged on the side of intermediate reservoirs 5, and more medium filter 6 is with
Between cistern 5 be connected by intermediate lift pump 501；Backwater cistern 7 is arranged on the side of more medium filter 6；Discharge pipeline
402 are connected by sludge pump 403 with filter press 8；Coarse filtration net 201 and sewage pump 202 are installed, slightly on regulating reservoir 2
Screen pack 201 can be intercepted except the floating object and large granular impurity in decontaminated water, and the sewage in regulating reservoir 2 is by sewage pump
202 are promoted to PH readjustments pond 3；PH readjustments pond 3 includes first order reaction pond 301, second order reaction pond 302 and third-order reaction pond 303,
And first order reaction pond 301, second order reaction pond 302 and third-order reaction pond 303 are mounted on mixer 304 and charge pump 305, waste water
The reaction of high order in pond 3 is adjusted back by PH, can effectively adjust the pH value of sewage；The inclination angle of inclined tube 401 is 60 degree, can be made
Sediment is from 402 unobstructed discharge of discharge pipeline；More medium filter 6 is provided with recoil sewage draining exit, and the filtering of more medium filter 6
Layer be made up of anthracite, quartz sand filter media and activated carbon, can effectively remove decontaminated water in bulky grain suspension and remaining have
Machine thing, ensure standard water discharge discharge or reuse.
The method of work of the present invention：During using the device, acid-base property contaminant water is discharged into regulating reservoir 2 by water inlet pipe 1, regulation
Pond 2 can balanced water quality and water, coarse filtration net 201 can intercept except the floating object and large granular impurity in decontaminated water, prevent
Pipeline or equipment block, and sewage is promoted to PH readjustments pond 3 by sewage pump 202, and PH readjustments pond 3 adjusts the pH value of sewage, dirty
Water is entered in first order reaction pond 301, is added PH conditioning agent sodium hydroxide solutions by charge pump 305, is adjusted the pH value of sewage
In the range of 9~10, the water outlet of first order reaction pond 301 adds oxidant from second order reaction pond 302 is flowed into, by charge pump 305
Sodium chlorate, aoxidizes organic matter and ferrous ion in sewage, and the water outlet of second order reaction pond 302 passes through from third-order reaction pond 303 is flowed into
Charge pump 305 adds flocculant poly aluminium chloride, and three reaction tanks in PH readjustments pond 3 are mounted on mixer 304, can made anti-
Should be uniform, reaction speed is fast, and the water outlet of third-order reaction pond 303 carries out flocculation reaction from inflow tube settler 4, after flocculation reaction
Hydrogen-oxygen sediment form sludge and sink to sludge bucket 404, from intermediate reservoirs 5 are flowed into, centre carries the clear water of the top of inclined tube 401
Rise pump 501 and clear water is promoted to more medium filter 6, the filter layer of more medium filter 6 is by anthracite, quartz sand filter media and work
Property charcoal composition, can effectively remove decontaminated water in bulky grain suspension and remaining organic matter, ensure standard water discharge discharge or return
Receive, more medium filter 6 is provided with recoil sewage draining exit, can depart from dirt cleaning of the absorption on filter layer, be purified
Water flow into backwater cistern 7, can be discharged or reuse, wherein sludge pump 403 by discharge pipeline 402 by sludge bucket 404
In sludge be delivered to filter press 8, press filtration is transported outward after being processed into mud cake, and filtrate is back to regulating reservoir 2.
In summary：The PH callback processing systems and its method of work of a kind of acid-base property contaminant water, it is dirty by acid-base property
The setting of the PH callback processing system regulating reservoirs of water is contaminated, solves the problems, such as to be not easy balanced water quality and quantity；Pass through soda acid contact scar
The setting in the PH callback processing systems PH readjustments pond of water, solves the problems, such as that reaction is insufficient thorough；Pass through acid-base property contaminant water
PH callback processing system inclined tubes setting, solve the problems, such as that spoil disposal is obstructed；At the PH readjustments of acid-base property contaminant water
The setting of reason system more medium filter, solve the problems, such as to purify sewage effect difference；By the improvement in structure, there is system
It is reasonable in design, good sewage processing effect, the strong advantage of system reliability, so as to effectively solve what is proposed in above-mentioned background technology
Problem and shortage present in existing apparatus.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
- A kind of 1. PH callback processing systems of acid-base property contaminant water, it is characterised in that including：Water inlet pipe (1), regulating reservoir (2), PH Adjust back pond (3), tube settler (4), intermediate reservoirs (5), more medium filter (6), backwater cistern (7), filter press (8), pipeline (9), coarse filtration net (201), sewage pump (202), first order reaction pond (301), second order reaction pond (302), three Order reaction pond (303), mixer (304), charge pump (305), inclined tube (401), discharge pipeline (402), sludge pump (403) and centre Elevator pump (501)；The regulating reservoir (2) is arranged on the lower section of water inlet pipe (1)；PH readjustments pond (3) are arranged on regulating reservoir (2) Side, and PH readjustment pond (3) be connected with regulating reservoir (2) by sewage pump (202)；The tube settler (4) sets Put in the side of PH readjustments pond (3), and tube settler (4) is connected with PH readjustments pond (3) by pipeline (9)；The centre Cistern (5) is arranged on the side of tube settler (4), and intermediate reservoirs (5) are connected with tube settler (4) by pipeline Connect；The more medium filter (6) is arranged on the side of intermediate reservoirs (5), and more medium filter (6) and intermediate reservoirs (5) it is connected by intermediate lift pump (501)；The backwater cistern (7) is arranged on the side of more medium filter (6)；Institute Discharge pipeline (402) is stated by sludge pump (403) with filter press (8) to be connected.
- A kind of 2. PH callback processing systems of acid-base property contaminant water according to claim 1, it is characterised in that：The regulation Coarse filtration net (201) and sewage pump (202) are installed on pond (2).
- A kind of 3. PH callback processing systems of acid-base property contaminant water according to claim 1, it is characterised in that：The PH is returned Pond (3) are adjusted to include first order reaction pond (301), second order reaction pond (302) and third-order reaction pond (303), and first order reaction pond (301), second order reaction pond (302) and third-order reaction pond (303) are mounted on mixer (304) and charge pump (305).
- A kind of 4. PH callback processing systems of acid-base property contaminant water according to claim 1, it is characterised in that：The inclined tube (401) inclination angle is 60 degree.
- A kind of 5. PH callback processing systems of acid-base property contaminant water according to claim 1, it is characterised in that：More Jie Mass filter (6) is provided with recoil sewage draining exit, and the filter layer of more medium filter (6) is by anthracite, quartz sand filter media and work Property charcoal composition.
- A kind of 6. method of work of the PH callback processing systems of the contaminant water of acid-base property according to claim 1：Soda acid contact scar Water is discharged into regulating reservoir (2) by water inlet pipe (1), regulating reservoir (2) can balanced water quality and water, coarse filtration net (201) can block The floating object and large granular impurity in decontaminated water are amputated, prevents pipeline or equipment from blocking, sewage is lifted by sewage pump (202) Pond (3) are adjusted back to PH, the pH value of PH readjustments pond (3) adjustment sewage, sewage is entered in first order reaction pond (301), passes through charging Pump (305) adds PH conditioning agent sodium hydroxide solutions, adjusts the pH value of sewage in the range of 9~10, first order reaction pond (301) go out Water adds oxidizing agent sodium hypochlorite from second order reaction pond (302) are flowed into, by charge pump (305), aoxidizes the organic matter in sewage And ferrous ion, second order reaction pond (302) water outlet add flocculant from third-order reaction pond (303) are flowed into, by charge pump (305) Aluminium polychloride, three reaction tanks of PH readjustments pond (3) are mounted on mixer (304), reaction can be made uniform, reaction speed It hurry up, from progress flocculation reaction in tube settler (4) is flowed into, the hydrogen-oxygen after flocculation reaction precipitates for third-order reaction pond (303) water outlet Thing forms sludge and sinks to sludge bucket (404), and the clear water above inclined tube (401) is from flowing into intermediate reservoirs (5), intermediate lift pump (501) clear water is promoted to more medium filter (6), the filter layer of more medium filter (6) by anthracite, quartz sand filter media and Activated carbon form, can effectively remove decontaminated water in bulky grain suspension and remaining organic matter, ensure standard water discharge discharge or Recovery, more medium filter (6) are provided with recoil sewage draining exit, can depart from dirt cleaning of the absorption on filter layer, obtain The water of purification flows into backwater cistern (7), can be discharged or reuse, wherein sludge pump (403) are incited somebody to action by discharge pipeline (402) Sludge in sludge bucket (404) is delivered to filter press (8), and press filtration is transported outward after being processed into mud cake, and filtrate is back to regulating reservoir (2).
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| CN201710818861.4A CN107459173A (en) | 2017-09-12 | 2017-09-12 | The PH callback processing systems and its method of work of a kind of acid-base property contaminant water |
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| CN201710818861.4A CN107459173A (en) | 2017-09-12 | 2017-09-12 | The PH callback processing systems and its method of work of a kind of acid-base property contaminant water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108218027A (en) * | 2017-12-27 | 2018-06-29 | 北京泰豪智能工程有限公司 | A kind of sampling of water quality cleaning equipment |
| CN109179775A (en) * | 2018-10-23 | 2019-01-11 | 广东通朗环保科技有限公司 | A kind of sewage-treatment plant |
| CN109502863A (en) * | 2018-11-27 | 2019-03-22 | 中国恩菲工程技术有限公司 | The processing unit of saliferous organic matter acid metal waste water |
| CN109516624A (en) * | 2018-11-27 | 2019-03-26 | 中国恩菲工程技术有限公司 | The processing method of saliferous organic matter acid metal waste water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218027A (en) * | 2017-12-27 | 2018-06-29 | 北京泰豪智能工程有限公司 | A kind of sampling of water quality cleaning equipment |
| CN109179775A (en) * | 2018-10-23 | 2019-01-11 | 广东通朗环保科技有限公司 | A kind of sewage-treatment plant |
| CN109502863A (en) * | 2018-11-27 | 2019-03-22 | 中国恩菲工程技术有限公司 | The processing unit of saliferous organic matter acid metal waste water |
| CN109516624A (en) * | 2018-11-27 | 2019-03-26 | 中国恩菲工程技术有限公司 | The processing method of saliferous organic matter acid metal waste water |
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Application publication date: 20171212 |