CN103708652A - Industrial wastewater treatment method - Google Patents
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- CN103708652A CN103708652A CN201410009191.8A CN201410009191A CN103708652A CN 103708652 A CN103708652 A CN 103708652A CN 201410009191 A CN201410009191 A CN 201410009191A CN 103708652 A CN103708652 A CN 103708652A
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Abstract
The invention relates to an industrial wastewater treatment method and belongs to the field of water treatment. The industrial wastewater treatment method comprises the steps that pretreated industrial wastewater enters a water tank to regulate the pH value of the wastewater; most of water enters an ultrafiltration membrane group from the water tank; after the water is treated by the ultrafiltration membrane group, a part of water in the ultrafiltration membrane group returns to the water tank again, and the pH value of the water is regulated; after most of water in the ultrafiltration membrane group is subjected to ultrafiltration treatment by the ultrafiltration membrane group, the treated water is fed into a resin adsorption group and is subjected to adsorption treatment; if tested to be qualified, the water subjected to adsorption treatment flows into a pure water tank; if tested to be not qualified, the water subjected to adsorption treatment is fed into the resin adsorption group and is subjected to adsorption treatment again; and when the level of the industrial wastewater in the water tank falls to a liquid level switch in the water tank, a part of water in the water tank is mixed with sludge and enters a sludge tank, the water and the sludge in the sludge tank enter a sludge bag, the water in the sludge bag is separated from the sludge by virtue of pressurization and enters a vessel, sewage in a container enters the water tank again, and the pH value is regulated. The method has the advantages of economy, practicability, energy saving, environmental protection, simple structure, stable running performance and high water recovery rate.
Description
Technical field
The present invention relates to a kind of process for treating industrial waste water, belong to water treatment field.
Background technology
Along with developing rapidly of industry, kind and the quantity of trade effluent rapidly increase, and the pollution of water body also, increasingly extensively with serious, is threatening the mankind's health and safety gradually.In trade effluent, contain the pollutent producing in the industrial production materials, intermediate product and the product that outflow with water and production process, these are all the major causes that causes water pollution.Therefore,, for protection of the environment, the water treatment system of exploitation trade effluent is particularly important.Water treatment system can reach the water quality standard that can discharge of national regulation or recycle again for industrial production by a series of purifying treatment by the trade effluent with pollution.
About water treatment system, in prior art, have been reported, as Chinese invention patent (publication number: the technique that CN1473768A) relates to a kind of first-stage reverse osmosis and electric salt remover producing high purity water, its technique comprises the steps: that pretreated water is after softening agent is softening, add NaOH to regulate the pH value of water inlet, then by pipeline, enter the cartridge filter of reverse osmosis, pretreated water is stable enters reverse osmosis high-pressure pump by pipeline, after pressurization, by pipeline, enter reverse osmosis membrane group, by pipeline, directly put into intermediate water tank, by middle water pump, pass through pipeline again, major part is sent into electric salt remover and is carried out smart desalination, a part adds through piping the dense water circulation system being comprised of pipeline, water circulating pump to, and the dense water of unnecessary circulation, through piping, after being pressurizeed, is again sent into reverse osmosis membrane group and carried out pre-desalination by high-pressure pump, and the product water of electric salt remover, if test passes flows into finished product water tank by pipeline, if test failure, puts back to intermediate water tank by pipeline.In this water technology, reverse osmosis membrane needs that joint is many, hydraulic pressure is high, and failure rate and the probability that leaks are relatively high; Complex structure, price are more expensive, add that the whole water technology energy consumption of electric salt remover is higher, and cost of water treatment is higher.
Summary of the invention
The defect that the present invention exists in for existing technique, provides a kind of reverse osmosis membrane that do not need, simple in structure, good economy performance, and energy consumption is low, the process for treating industrial waste water that the rate of recovery of water is 100%.
Above-mentioned purpose of the present invention is implemented by the following technical programs: a kind of process for treating industrial waste water, the method comprises after pretreated trade effluent is opened by the first electrically operated valve by pipeline and enters water tank adjust pH, the second electrically operated valve is opened, most of water in water tank is opened the laggard ultra-filtration membrane group that enters by pipeline by high-pressure pump pressurization electrically operated valve, after ultra-filtration membrane group is processed, a part of water in ultra-filtration membrane group is by pipeline, water circulating pump is got back to water tank adjust pH again, most of water in ultra-filtration membrane group is sent into resin absorption group by pipeline through water pump and is carried out adsorption treatment after ultra-filtration membrane group uf processing, water through adsorption treatment, if test passes, by pipeline, flow into pure water water tank, if test failure, by pipeline, through water pump, send into resin absorption group and again carry out adsorption treatment, when the trade effluent water level in water tank drops to the liquid level switch place in water tank, the first electrically operated valve and the second electrically operated valve are all closed, the 3rd electrically operated valve is opened simultaneously, a part of water in water tank confuses after mud is pressurizeed by sludge pump by pipeline and enters mud case, close the 3rd electrically operated valve, water in mud case and mud enter mud bag by pipeline, water in mud bag enters container through pressurization is separated with mud by pipeline, and the sewage in container is crossed motor-mount pump pressurization by device for cleaning pipeline and reentered water tank adjust pH.
The pretreated trade effluent of the present invention enters water tank after being opened by the first electrically operated valve by pipeline and regulates after pH value, most of water is pressurizeed by high-pressure pump by pipeline, open that the second electrically operated valve is laggard enters ultra-filtration membrane group, after part water confuses mud and is pressurizeed by sludge pump by sludge pipe, open the 3rd electrically operated valve and enter mud case, then by pipeline, enter mud bag, close the 3rd electrically operated valve, water in mud enters container through pressurization is separated with mud by pipeline at mud bag, sewage in container is crossed motor-mount pump pressurization by device for cleaning pipeline and is reentered water tank adjusting pH value, formed thus the water-flow circuit in a mud, water through uf processing, major part is sent into resin absorption group and is carried out adsorption treatment, remainder water is again got back to and is again sent into ultra-filtration membrane group after water tank adjust pH and carry out uf processing by pipeline, water circulating pump, has formed thus the water-flow circuit on another ultra-filtration membrane, through the water of adsorption treatment, send into detector and detect, test passes, flows into pure water water tank by pipeline, if test failure is sent into resin absorption group by pipeline through water pump and again carried out adsorption treatment, has formed thus and the water-flow circuit of another resin absorption.Like this, the circulation that trade effluent goes round and begins again by the inventive method, thus realize zero discharge of industrial waste water, greatly improve the utilization ratio of water.
As preferably, the water in described mud case and mud are controlled and are entered in mud bag and container by vent valve and intake valve.In water tank, 90% water enters ultra-filtration membrane, dense water in water tank is about 10% while being down to liquid level switch, open the 3rd electrically operated valve on sludge pipe, close the intake valve on mud case, and the vent valve of opening on mud case carries out spoil disposal, after 1min, close the 3rd electrically operated valve on sludge pipe, open the intake valve on mud case, and close the vent valve on mud case, stop spoil disposal.
As preferably, described pretreated water enters after water tank by alkali and nano-calcium carbonate, and both weight ratios are 10:(1-2); The pH value of Water in Water Tanks is controlled at 8.0-9.0.The mass ratio of alkali and nano-calcium carbonate is 10:(1-2) time, in trade effluent, sedimentary generating rate is maximum, can effectively remove the Ni in trade effluent
+, Cu
2+, Zn
2+and Ca
3+ion.
As preferably, described alkali is a kind of of calcium hydroxide, sodium hydroxide, potassium hydroxide.Further preferably, described alkali is calcium hydroxide.Hydroxide radical in calcium hydroxide can regulate the pH value of trade effluent on the one hand, forms solid precipitation with most metals impurity simultaneously, and the calcium ion in calcium hydroxide can not cause new pollution on the other hand.
As preferably, described ultra-filtration membrane group adopts cannulated tunica fibrosa, and the external diameter of described cannulated tunica fibrosa is 4.0-5.0mm.By the water after ultra-filtration membrane uf processing, by pipeline, through water pump, send into and in resin absorption group, carry out adsorption treatment, and ion exchange resin in resin absorption group is easy to by organic substance and bacterial contamination, for guaranteeing long-term normal use of resin absorption group intermediate ion exchange mixed bed, the crown_interception of ultra-filtration membrane is most important.The volume of smallest bacteria is approximately 0.02 micron, and the micropore of ultra-filtration membrane of the present invention only has 0.01 micron, therefore, only allow water and small-molecule substance to pass through, and the material that in trade effluent, volume is greater than film surface micropore footpath can be trapped in by ultra-filtration membrane the liquid feeding side of film as bacterium and the colloid more much bigger than bacterium volume, iron rust, suspended substance, silt, larger molecular organics etc., become concentrated solution and come back in water tank and process, so realize to trade effluent constantly purify, separated and concentrated.
As preferably, described resin absorption group is comprised of ion exchange resin mixed bed.The yin and yang resin ratio of ion exchangemixed bed is 2:1, be contained in a pressurized vessel, and fully mix, each positive resin has negative resin to surround around, become yin, yang ionic group, be equivalent to numerous yin, yang bed string together, trade effluent just can complete the process of many level yin, yangs ion-exchange by mixed bed, thereby remove in trade effluent, remain micro-zwitterion.
The present invention has the following advantages:
1, the system architecture of process for treating industrial waste water of the present invention is simple, and operating performance is stable, and the rate of recovery of water is high, can reach 100%.
2, economical and practical, the energy-conserving and environment-protective of process for treating industrial waste water of the present invention.
Accompanying drawing explanation
Accompanying drawing 1 is the schema of a kind of operational path of the present invention.
In figure, the 1, first electrically operated valve; 2, the second electrically operated valve; 3, the 3rd electrically operated valve; 4, liquid level switch; 10, water tank; 20, ultra-filtration membrane group; 21, high-pressure pump; 30, resin absorption group; 40, detector; 50, mud case; 51, sludge pump; 52, intake valve; 53, vent valve; 60, mud bag; 70, container; 71, motor-mount pump.
Embodiment
Be below specific embodiments of the invention, and accompanying drawings is further described technical scheme of the present invention, but the present invention is not limited to these embodiment.
Embodiment 1:
Pretreated trade effluent enters in water tank 10 after the first electrically operated valve 1 is opened by pipeline, by the mixed solution being placed in water tank 10, regulate the pH value of this trade effluent and its pH value is adjusted to 8, calcium hydroxide and nano-calcium carbonate that mixed solution is (10:1) by mass ratio form, because mixing, trade effluent has mud, enter water tank 10 interior after, mud proportion in water tank 10 is greater than trade effluent, sludgd deposition is in water tank 10 bottoms, therefore the trade effluent in water tank 10 is divided into two-layer gradually, lower floor is the trade effluent that carries a large amount of mud, upper strata is the trade effluent without mud, when the second electrically operated valve 2 is opened, the trade effluent on water tank 10 interior upper stratas flows into ultra-filtration membrane group 20 through pipeline by high-pressure pump 21 pressurizations, the hollow-fibre membrane that ultra-filtration membrane group 20 is 4mm by external diameter forms, after ultra-filtration membrane group 20 uf processing, part trade effluent is by pipeline adjust pH again also through water circulating pump is got back to water tank 10 again in, most of trade effluent by pipeline in water pump flows into resin absorption group 30, water after resin absorption group 30 adsorption treatment flows in detector 40 through pipeline, if test passes, water flows into pure water water tank 10 by pipeline, if test failure, by pipeline, in being fed through resin absorption group 30, water pump again carries out adsorption treatment, when the trade effluent water level in water tank 10 drops to liquid level switch 4 place in water tank 10, the first electrically operated valve 1 and the second electrically operated valve 2 are all closed, the 3rd electrically operated valve 3 is opened simultaneously, intake valve 52 on mud case 50 cuts out, vent valve 53 is opened, because the vent valve 53 in mud case 50 is opened and the air in mud case 50 is discharged, therefore the air pressure in mud case 50 is less than the air pressure in water tank 10, under the effect of draught head, remain in trade effluent (being the trade effluent that water tank 10Nei lower floor carries a large amount of mud) in water tank 10 by pipeline in sludge pump 51 flows into mud case 50, after after one minute, the 3rd electrically operated valve 3 is closed, the first electrically operated valve 1 is opened and pending trade effluent is flowed in water tank 10 again, the second valve is also opened and the trade effluent in water tank 10 is flowed in ultra-filtration membrane group 20 simultaneously, when the 3rd electrically operated valve 3 is closed, intake valve 52 on mud case 50 is opened, vent valve 53 is closed, by intake valve 52 by extraneous air intake to mud case 50, therefore the air pressure of mud case 50 increases gradually, under the effect of air pressure, trade effluent in mud case 50 is driven into mud bag 60 by pipeline together with mud, in mud bag 60, by mud case 50 and mud bag 60 draught head between the two, extrude and make it to flow in container 70 trade effluent in mud bag 60, mud is trapped in mud bag 60, flow into trade effluent in container 70 again by pipeline and by reentering the interior adjusting pH value of water tank 10 after motor-mount pump 71 pressurizations.
Embodiment 2:
Pretreated trade effluent enters in water tank 10 after the first electrically operated valve 1 is opened by pipeline, by the mixed solution being placed in water tank 10, regulate the pH value of this trade effluent and its pH value is adjusted to 8.5, calcium hydroxide and nano-calcium carbonate that mixed solution is (10:1.5) by mass ratio form, because mixing, trade effluent has mud, enter water tank 10 interior after, mud proportion in water tank 10 is greater than trade effluent, sludgd deposition is in water tank 10 bottoms, therefore the trade effluent in water tank 10 is divided into two-layer gradually, lower floor is the trade effluent that carries a large amount of mud, upper strata is the trade effluent without mud, when the second electrically operated valve 2 is opened, the trade effluent on water tank 10 interior upper stratas flows into ultra-filtration membrane group 20 through pipeline by high-pressure pump 21 pressurizations, the hollow-fibre membrane that ultra-filtration membrane group 20 is 4.5mm by external diameter forms, after ultra-filtration membrane group 20 uf processing, part trade effluent is by pipeline adjust pH again also through water circulating pump is got back to water tank 10 again in, most of trade effluent by pipeline in water pump flows into resin absorption group 30, water after resin absorption group 30 adsorption treatment flows in detector 40 through pipeline, if test passes, water flows into pure water water tank 10 by pipeline, if test failure, by pipeline, in being fed through resin absorption group 30, water pump again carries out adsorption treatment, when the trade effluent water level in water tank 10 drops to liquid level switch 4 place in water tank 10, the first electrically operated valve 1 and the second electrically operated valve 2 are all closed, the 3rd electrically operated valve 3 is opened simultaneously, intake valve 52 on mud case 50 cuts out, vent valve 53 is opened, because the vent valve 53 in mud case 50 is opened and the air in mud case 50 is discharged, therefore the air pressure in mud case 50 is less than the air pressure in water tank 10, under the effect of draught head, remain in trade effluent (being the trade effluent that water tank 10Nei lower floor carries a large amount of mud) in water tank 10 by pipeline in sludge pump 51 flows into mud case 50, after after one minute, the 3rd electrically operated valve 3 is closed, the first electrically operated valve 1 is opened and pending trade effluent is flowed in water tank 10 again, the second valve is also opened and the trade effluent in water tank 10 is flowed in ultra-filtration membrane group 20 simultaneously, when the 3rd electrically operated valve 3 is closed, intake valve 52 on mud case 50 is opened, vent valve 53 is closed, by intake valve 52 by extraneous air intake to mud case 50, therefore the air pressure of mud case 50 increases gradually, under the effect of air pressure, trade effluent in mud case 50 is driven into mud bag 60 by pipeline together with mud, in mud bag 60, by mud case 50 and mud bag 60 draught head between the two, extrude and make it to flow in container 70 trade effluent in mud bag 60, mud is trapped in mud bag 60, flow into trade effluent in container 70 again by pipeline and by reentering the interior adjusting pH value of water tank 10 after motor-mount pump 71 pressurizations.
Embodiment 3:
Pretreated trade effluent enters in water tank 10 after the first electrically operated valve 1 is opened by pipeline, by the mixed solution being placed in water tank 10, regulate the pH value of this trade effluent and its pH value is adjusted to 9, calcium hydroxide and nano-calcium carbonate that mixed solution is (10:2) by mass ratio form, because mixing, trade effluent has mud, enter water tank 10 interior after, mud proportion in water tank 10 is greater than trade effluent, sludgd deposition is in water tank 10 bottoms, therefore the trade effluent in water tank 10 is divided into two-layer gradually, lower floor is the trade effluent that carries a large amount of mud, upper strata is the trade effluent without mud, when the second electrically operated valve 2 is opened, the trade effluent on water tank 10 interior upper stratas flows into ultra-filtration membrane group 20 through pipeline by high-pressure pump 21 pressurizations, the hollow-fibre membrane that ultra-filtration membrane group 20 is 5mm by external diameter forms, after ultra-filtration membrane group 20 uf processing, part trade effluent is by pipeline adjust pH again also through water circulating pump is got back to water tank 10 again in, most of trade effluent by pipeline in water pump flows into resin absorption group 30, water after resin absorption group 30 adsorption treatment flows in detector 40 through pipeline, if test passes, water flows into pure water water tank 10 by pipeline, if test failure, by pipeline, in being fed through resin absorption group 30, water pump again carries out adsorption treatment, when the trade effluent water level in water tank 10 drops to liquid level switch 4 place in water tank 10, the first electrically operated valve 1 and the second electrically operated valve 2 are all closed, the 3rd electrically operated valve 3 is opened simultaneously, intake valve 52 on mud case 50 cuts out, vent valve 53 is opened, because the vent valve 53 in mud case 50 is opened and the air in mud case 50 is discharged, therefore the air pressure in mud case 50 is less than the air pressure in water tank 10, under the effect of draught head, remain in trade effluent (being the trade effluent that water tank 10Nei lower floor carries a large amount of mud) in water tank 10 by pipeline in sludge pump 51 flows into mud case 50, after after one minute, the 3rd electrically operated valve 3 is closed, the first electrically operated valve 1 is opened and pending trade effluent is flowed in water tank 10 again, the second valve is also opened and the trade effluent in water tank 10 is flowed in ultra-filtration membrane group 20 simultaneously, when the 3rd electrically operated valve 3 is closed, intake valve 52 on mud case 50 is opened, vent valve 53 is closed, by intake valve 52 by extraneous air intake to mud case 50, therefore the air pressure of mud case 50 increases gradually, under the effect of air pressure, trade effluent in mud case 50 is driven into mud bag 60 by pipeline together with mud, in mud bag 60, by mud case 50 and mud bag 60 draught head between the two, extrude and make it to flow in container 70 trade effluent in mud bag 60, mud is trapped in mud bag 60, flow into trade effluent in container 70 again by pipeline and by reentering the interior adjusting pH value of water tank 10 after motor-mount pump 71 pressurizations.
Embodiment 4:
Pretreated trade effluent enters in water tank 10 after the first electrically operated valve 1 is opened by pipeline, by the mixed solution being placed in water tank 10, regulate the pH value of this trade effluent and its pH value is adjusted to 8, calcium hydroxide and nano-calcium carbonate that mixed solution is (10:2) by mass ratio form, because mixing, trade effluent has mud, enter water tank 10 interior after, mud proportion in water tank 10 is greater than trade effluent, sludgd deposition is in water tank 10 bottoms, therefore the trade effluent in water tank 10 is divided into two-layer gradually, lower floor is the trade effluent that carries a large amount of mud, upper strata is the trade effluent without mud, when the second electrically operated valve 2 is opened, the trade effluent on water tank 10 interior upper stratas flows into ultra-filtration membrane group 20 through pipeline by high-pressure pump 21 pressurizations, the hollow-fibre membrane that ultra-filtration membrane group 20 is 4mm by external diameter forms, after ultra-filtration membrane group 20 uf processing, part trade effluent is by pipeline adjust pH again also through water circulating pump is got back to water tank 10 again in, most of trade effluent by pipeline in water pump flows into resin absorption group 30, water after resin absorption group 30 adsorption treatment flows in detector 40 through pipeline, if test passes, water flows into pure water water tank 10 by pipeline, if test failure, by pipeline, in being fed through resin absorption group 30, water pump again carries out adsorption treatment, when the trade effluent water level in water tank 10 drops to liquid level switch 4 place in water tank 10, the first electrically operated valve 1 and the second electrically operated valve 2 are all closed, the 3rd electrically operated valve 3 is opened simultaneously, intake valve 52 on mud case 50 cuts out, vent valve 53 is opened, because the vent valve 53 in mud case 50 is opened and the air in mud case 50 is discharged, therefore the air pressure in mud case 50 is less than the air pressure in water tank 10, under the effect of draught head, remain in trade effluent (being the trade effluent that water tank 10Nei lower floor carries a large amount of mud) in water tank 10 by pipeline in sludge pump 51 flows into mud case 50, after after one minute, the 3rd electrically operated valve 3 is closed, the first electrically operated valve 1 is opened and pending trade effluent is flowed in water tank 10 again, the second valve is also opened and the trade effluent in water tank 10 is flowed in ultra-filtration membrane group 20 simultaneously, when the 3rd electrically operated valve 3 is closed, intake valve 52 on mud case 50 is opened, vent valve 53 is closed, by intake valve 52 by extraneous air intake to mud case 50, therefore the air pressure of mud case 50 increases gradually, under the effect of air pressure, trade effluent in mud case 50 is driven into mud bag 60 by pipeline together with mud, in mud bag 60, by mud case 50 and mud bag 60 draught head between the two, extrude and make it to flow in container 70 trade effluent in mud bag 60, mud is trapped in mud bag 60, flow into trade effluent in container 70 again by pipeline and by reentering the interior adjusting pH value of water tank 10 after motor-mount pump 71 pressurizations.
Process for treating industrial waste water of the present invention can reclaim and utilize trade effluent in 100% ground, saved water resources, and treatment process is simple, less investment, and cost is low, has good economy and environment benefit.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made a detailed description and has quoted as proof some specific embodiments, to those skilled in the art, only otherwise it is obvious leaving that the spirit and scope of the present invention can make various changes or revise.
Claims (7)
1. a process for treating industrial waste water, it is characterized in that: the method comprises after pretreated trade effluent is opened by the first electrically operated valve by pipeline and enters water tank adjust pH, the second electrically operated valve is opened, most of water in water tank is opened the laggard ultra-filtration membrane group that enters by pipeline by high-pressure pump pressurization electrically operated valve, after ultra-filtration membrane group is processed, a part of water in ultra-filtration membrane group is by pipeline, water circulating pump is got back to water tank adjust pH again, most of water in ultra-filtration membrane group is sent into resin absorption group by pipeline through water pump and is carried out adsorption treatment after ultra-filtration membrane group uf processing, water through adsorption treatment, if test passes, by pipeline, flow into pure water water tank, if test failure, by pipeline, through water pump, send into resin absorption group and again carry out adsorption treatment, when the trade effluent water level in water tank drops to the liquid level switch place in water tank, the first electrically operated valve and the second electrically operated valve are all closed, the 3rd electrically operated valve is opened simultaneously, a part of water in water tank confuses after mud is pressurizeed by sludge pump by pipeline and enters mud case, close the 3rd electrically operated valve, water in mud case and mud enter mud bag by pipeline, water in mud bag enters container through pressurization is separated with mud by pipeline, and the sewage in container is crossed motor-mount pump pressurization by device for cleaning pipeline and reentered water tank adjust pH.
2. according to right, want the process for treating industrial waste water described in 1 any one, it is characterized in that: the water in described mud case and mud are controlled and entered in mud bag and container by vent valve and intake valve.
3. process for treating industrial waste water according to claim 2, is characterized in that: when the 3rd electrically operated valve, open, the intake valve on mud case cuts out, exhaust valve opening, and when the 3rd electrically operated valve is closed, the inlet open on mud case, exhaust valve closure.
4. process for treating industrial waste water according to claim 1, is characterized in that: described pretreated water enters after water tank by alkali and nano-calcium carbonate, and both weight ratios are 10:1-2; The pH value of Water in Water Tanks is controlled at 8.0-9.0.
5. process for treating industrial waste water according to claim 4, is characterized in that: described alkali is a kind of of calcium hydroxide, sodium hydroxide, potassium hydroxide.
6. according to right, want the process for treating industrial waste water described in 1-5 any one, it is characterized in that: described ultra-filtration membrane group adopts cannulated tunica fibrosa, and the external diameter of described cannulated tunica fibrosa is 4.0-5.0mm.
7. according to right, want the process for treating industrial waste water described in 1-5 any one, it is characterized in that: described resin absorption group is comprised of ion exchange resin mixed bed.
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| CN201410009191.8A CN103708652B (en) | 2014-01-08 | 2014-01-08 | Industrial wastewater treatment method |
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|---|---|---|---|
| CN201410009191.8A CN103708652B (en) | 2014-01-08 | 2014-01-08 | Industrial wastewater treatment method |
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| CN103708652A true CN103708652A (en) | 2014-04-09 |
| CN103708652B CN103708652B (en) | 2015-05-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711657A (en) * | 2015-03-10 | 2015-06-17 | 宁波恺谱瑞膜科技有限公司 | Secondary filtration method of ultra-filtration membrane for electroplate liquid |
| CN106587457A (en) * | 2016-11-14 | 2017-04-26 | 无锡艾科瑞思产品设计与研究有限公司 | Purification and detection supplying equipment of tap water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219838A (en) * | 2008-01-25 | 2008-07-16 | 北京交通大学 | Method for processing heavy metal industrial waste water with low concentration |
| CN101434444A (en) * | 2007-11-16 | 2009-05-20 | 中国石油化工股份有限公司 | Membrane bioreactor and use thereof in wastewater treatment |
-
2014
- 2014-01-08 CN CN201410009191.8A patent/CN103708652B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434444A (en) * | 2007-11-16 | 2009-05-20 | 中国石油化工股份有限公司 | Membrane bioreactor and use thereof in wastewater treatment |
| CN101219838A (en) * | 2008-01-25 | 2008-07-16 | 北京交通大学 | Method for processing heavy metal industrial waste water with low concentration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711657A (en) * | 2015-03-10 | 2015-06-17 | 宁波恺谱瑞膜科技有限公司 | Secondary filtration method of ultra-filtration membrane for electroplate liquid |
| CN106587457A (en) * | 2016-11-14 | 2017-04-26 | 无锡艾科瑞思产品设计与研究有限公司 | Purification and detection supplying equipment of tap water |
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| CN103708652B (en) | 2015-05-27 |
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