CN203307148U - Comprehensive treatment system of industrial electroplating wastewater - Google Patents
Comprehensive treatment system of industrial electroplating wastewater Download PDFInfo
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- CN203307148U CN203307148U CN2013202825813U CN201320282581U CN203307148U CN 203307148 U CN203307148 U CN 203307148U CN 2013202825813 U CN2013202825813 U CN 2013202825813U CN 201320282581 U CN201320282581 U CN 201320282581U CN 203307148 U CN203307148 U CN 203307148U
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- equalizing tank
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- waste water
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- electroplating
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Abstract
The utility model discloses a comprehensive treatment system of industrial electroplating wastewater. The comprehensive treatment system comprises a regulating reservoir, an oxidation tank, a reduction cell, a comprehensive reaction tank, a coagulating basin, an inclined-tube settling tank, a middle basin, a membrane pretreatment system, a membrane treatment system, a concentrated pool, a sludge tank and a dehydration system, which are sequentially connected. On the basis of the prior art, the membrane pretreatment system and the membrane treatment system are added, so that bivalent and trivalent metal ions are effectively intercepted, further, effluent is stably discharged up to the standard, and meanwhile, the effluent can be reused. A secondary oxidation cyanide tank and the reducing cell are added, so that the reduced trivalent chromium is prevented from being oxidized again. The concentrated pool is arranged, so that concentrated water can be effectively processed. A filter cloth filter filtration system is adopted, so that the treatment effect is good. A wastewater pool and the membrane treatment system are arranged, so that the adaptability of the entire system on quality and quantity change of the wastewater is enhanced.
Description
Technical field
The utility model relates to wastewater processing technology, is specially a kind of total system of industrial electro waste electroplating.
Background technology
Electroplating wastewater principal pollutant matter comprises spent acid alkali, heavy metal, oils, prussiate etc., because pollutant kind is many, complicated component and wayward, toxicity large, water quality and quantity changes greatly, becomes one of Focal point and difficult point of field of waste water treatment.Existing electroplating waste water treatment technology is mainly chemistry redox and precipitation technology, ion exchange technique and electrolysis treatment technology.At present, due to the heavy metal out of electroplating wastewater ionic concn than low, kind is many, reclaim difficulty and cost higher, thereby chemistry redox and the precipitator method are mainly adopted in the processing of electroplating wastewater, but in waste water, each heavy metal concentration changes the condition differences such as frequent and the required pH of sedimentation, combination treatment may cause some heavy metal in waste water can't precipitate thoroughly, or causes some heavy metal precipitation thing anti-molten, finally causes heavy metal in discharge water not discharge by stably reaching standard.Along with the setting of the increasingly strict and on-line detecting system of emission standard, independent chemistry redox and the precipitator method can't meet the requirement that stably reaching standard discharges.
The utility model content
The technical problem that the utility model solves is to provide a kind of total system of industrial electro waste electroplating, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of total system of industrial electro waste electroplating, comprise the equalizing tank connected in turn, oxidation trough, reducing bath, the combined reaction groove, coagulation basin, tube settler, intermediate pool, the film pretreatment system, film processing system, dense pond, sludge sump, dewatering system, described film pretreatment system comprises the filtering cloth filtering pool connected in turn, film pre-treatment intermediate pool, carbon filter and accurate filter, described tube settler, filtering cloth filtering pool also is connected with described sludge sump respectively, described dewatering system also is connected with described dense pond, described film processing system separately is connected with clean water basin, between the outlet of described film processing system and entrance, separately by valve, be connected with under meter.
Described oxidation trough is two-stage oxidation broken cyanide reactive tank, described equalizing tank comprises cyanide wastewater equalizing tank, chromate waste water equalizing tank and electroplating comprehensive waste water equalizing tank, described film processing system adopts nanofiltration membrane treatment system or reverse osmosis membrane treatment system, and described dewatering system adopts plate-and-frame filter press.
Between described equalizing tank and oxidation trough, reducing bath, combined reaction groove, between intermediate pool and filtering cloth filtering pool, between film pre-treatment intermediate pool and carbon filter, between accurate filter and film processing system, all by pump, be connected between sludge sump and dewatering system.
Described oxidation trough, reducing bath all are equipped with pH meter and ORP meter, and pH meter and ORP meter Controlling System respectively add required acid, alkali neutralizing agent and oxidation, reductive agent to waste water automatically, make waste water reach required pH value and ORP value.
The cyanide wastewater equalizing tank that described equalizing tank comprises, chromate waste water equalizing tank and electroplating comprehensive waste water equalizing tank all are equipped with liquidometer, and its outlet all is equipped with under meter.
Described intermediate pool is equipped with pH meter and liquidometer, and described film pre-treatment intermediate pool is equipped with liquidometer, and described combined reaction groove, coagulation basin and dense pond all are equipped with pH meter.
Described carbon filter outlet, entrance and accurate filter outlet are equipped with tensimeter, so that the stopping state of recording geometry.
Ultimate principle of the present utility model is: cyanide wastewater, chromate waste water, electroplating comprehensive waste water enters respectively equalizing tank separately, cyanide wastewater is mixing with chromate waste water in oxidation trough in reducing bath after the two-stage oxidation broken cyanide, reduce processing, waste water after processing mixes in coagulation basin with electroplating comprehensive waste water again, carry out coagulating treatment, through tube settler, carry out precipitation process again, supernatant liquor after precipitation enters intermediate pool, through filtering cloth filtering pool, hold back part SS pollutent, film pre-treatment intermediate pool, carbon filter absorbed portion organism and SS pollutent, after accurate filter filters, enter film processing system, the effectively catching divalence, trivalent heavy metals ion and organic pollutant, water outlet enters clean water basin.The dense water that film processing system produces enters dense pond to carry out reaching emission standard after the precipitation of pH regulator and heavy metal.
Described film processing system water outlet enters clean water basin through under meter, and the dense water that film processing system produces enters dense pond through under meter, and the dense water section of generation refluxes, and quantity of reflux is controlled by the valve and the under meter that are installed between film processing system outlet and entrance.
The mud that tube settler, filtering cloth filtering pool filtering system and dense pond produce enters sludge sump and concentrates, and transports outward after the dewatering system processed, and the water outlet of dewatering system enters dense pond and processes.
Beneficial effect: the utility model is on the basis of existing wastewater processing technology, increase the film pretreatment system that comprises filtering cloth filtering pool, carbon filter, accurate filter, and the film processing system that adopts nanofiltration membrane or reverse osmosis membrane, effectively catching divalence, trivalent heavy metals ion, make the discharge of water outlet stably reaching standard, but the reuse of water outlet simultaneously.Increase reducing bath, cyanide wastewater is carried out after the secondary oxidation broken cyanide mixing with chromate waste water and reduce processing, prevent that the trivalent chromium that excessive clorox will reduce after the secondary broken cyanide is oxidized to sexavalent chrome again.Be provided with dense pond, can effectively to dense water, process.Adopt the filtering cloth filtering pool filtering system, treatment effect is good and stable, and running maintenance is convenient, makes the influent quality water yield of nanofiltration membrane or reverse osmosis membrane processing more stable.Wastewater disposal basin and film processing system are set, the strong adaptability of whole system to the water quality and quantity variation of waste water.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with specific examples, further set forth the utility model.
Total system referring to a kind of industrial electro waste electroplating of Fig. 1, comprise the equalizing tank connected in turn, oxidation trough, reducing bath, the combined reaction groove, coagulation basin, tube settler, intermediate pool, the film pretreatment system, film processing system, dense pond, sludge sump, dewatering system, described film pretreatment system comprises the filtering cloth filtering pool connected in turn, film pre-treatment intermediate pool, carbon filter and accurate filter, described tube settler, filtering cloth filtering pool also is connected with described sludge sump respectively, described dewatering system also is connected with described dense pond, described film processing system separately is connected with clean water basin, between the outlet of described film processing system and entrance, separately by valve, be connected with under meter.
As previously mentioned, cyanide wastewater, from flowing in the cyanide wastewater equalizing tank, is squeezed into stair oxidation broken cyanide reactive tank by pump.Automatic feeding alkali lye under pH meter is controlled, regulating waste water ph is 10～11, and then automatic feeding clorox under the ORP meter is controlled, control ORP=300～350mV, and hydraulic detention time is 30min～40min; Through abundant reacted waste water, enter secondary oxidation broken cyanide reactive tank, automatic feeding sulphur acid for adjusting pH value is 8.5～9 under pH meter is controlled again, and then count automatic feeding clorox under control at ORP, and control ORP=600～700mV, hydraulic detention time is still 30min～40min.
As previously mentioned, chromate waste water is from flowing in the chromate waste water equalizing tank, by pump, squeeze into reducing bath, with the cyanide wastewater after abundant oxidation, mix, automatic feeding sulfuric acid under pH meter is controlled, regulating waste water ph is 2～3, then automatic feeding sodium bisulfite under the ORP meter is controlled, control ORP=230～270mv, hydraulic detention time is 30min～40min.
As previously mentioned, electroplating comprehensive waste water is from flowing in the electroplating comprehensive waste water equalizing tank, by pump, squeeze into the combined reaction groove, with process after contain cyanogen, chromate waste water mixes, automatic feeding liquid caustic soda under pH meter is controlled, regulating waste water ph is 8～9, adds simultaneously heavy metal chelating agent, hydraulic detention time is 20min～30min, effectively catches the most of heavy metal ion of precipitation; Composite waste is again from flowing into coagulation basin, automatic feeding liquid caustic soda under pH meter is controlled, regulating waste water ph is 9.5～10.5, add simultaneously calcium chloride and PAC, hydraulic detention time is 20min～30min, by the adsorption bridging effect of PAC, form flco with the heavy metal ion precipitation generated, the Calcium Fluoride (Fluorspan) precipitation generated etc.; Water outlet finally enters tube settler, adds PAM, makes flco further become large and comparatively fast precipitates, and the waterpower surface load is 1.4m
3/ m
2H～2.0m
3/ m
2H, sedimentation time 1.0～1.5h.
As previously mentioned, the tube settler supernatant liquor enters intermediate pool, automatic switching acid adding under pH meter is controlled, and regulating waste water ph is 7～8; Waste water is squeezed into the filtering cloth filtering pool filtering system by pump again, effectively reduces SS and holds back the part pollutent, and water outlet enters film pre-treatment intermediate pool; Finally, waste water enters carbon filter, and the Adsorption partial organic substances also further reduces SS, and waste water enters film processing system through accurate filter again.
The film processing system water outlet enters clean water basin, and the dense water of generation enters dense pond, automatic feeding liquid caustic soda under pH meter is controlled, and regulating waste water ph is 8～9, adds simultaneously heavy metal chelating agent, hydraulic detention time is 20min～30min, the water outlet qualified discharge.The dense water section of film processing system refluxes, and enters clean water basin through under meter.The mud that tube settler, filtering cloth filtering pool and dense pond produce enters sludge sump and concentrates, mud outward transport after the dewatering system dehydration, and the dewatering system water outlet enters dense pond and processes.
Above demonstration and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the total system of an industrial electro waste electroplating, it is characterized in that, comprise the equalizing tank, oxidation trough, reducing bath, combined reaction groove, coagulation basin, tube settler, intermediate pool, film pretreatment system, film processing system, dense pond, sludge sump, the dewatering system that connect in turn; Described film pretreatment system comprises filtering cloth filtering pool, film pre-treatment intermediate pool, carbon filter and the accurate filter connected in turn; Described tube settler, filtering cloth filtering pool also are connected with described sludge sump respectively; Described dewatering system also is connected with described dense pond, and described film processing system separately is connected with clean water basin; Between the outlet of described film processing system and entrance, separately by valve, be connected with under meter.
2. the total system of a kind of industrial electro waste electroplating according to claim 1, it is characterized in that, described oxidation trough is two-stage oxidation broken cyanide reactive tank, described equalizing tank comprises cyanide wastewater equalizing tank, chromate waste water equalizing tank and electroplating comprehensive waste water equalizing tank, described film processing system adopts nanofiltration membrane treatment system or reverse osmosis membrane treatment system, and described dewatering system adopts plate-and-frame filter press.
3. the total system of a kind of industrial electro waste electroplating according to claim 1, it is characterized in that, between described equalizing tank and oxidation trough, reducing bath, combined reaction groove, between intermediate pool and filtering cloth filtering pool, between film pre-treatment intermediate pool and carbon filter, between accurate filter and film processing system, between sludge sump and dewatering system, pump is arranged all.
4. the total system of a kind of industrial electro waste electroplating according to claim 1, is characterized in that, described oxidation trough, reducing bath, combined reaction groove, coagulation basin, dense pond and intermediate pool all are equipped with pH meter; Described oxidation trough, reducing bath all are equipped with the ORP meter; Described intermediate pool, film pre-treatment intermediate pool all are equipped with liquidometer; Described carbon filter outlet, entrance and accurate filter outlet are equipped with tensimeter.
5. the total system of a kind of industrial electro waste electroplating according to claim 2, is characterized in that, described cyanide wastewater equalizing tank, chromate waste water equalizing tank, electroplating comprehensive waste water equalizing tank all are equipped with liquidometer; Described cyanide wastewater equalizing tank, chromate waste water equalizing tank, electroplating comprehensive waste water equalizing tank all are equipped with under meter in outlet.
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| CN2013202825813U CN203307148U (en) | 2013-05-22 | 2013-05-22 | Comprehensive treatment system of industrial electroplating wastewater |
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| CN2013202825813U CN203307148U (en) | 2013-05-22 | 2013-05-22 | Comprehensive treatment system of industrial electroplating wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326599A (en) * | 2014-10-25 | 2015-02-04 | 吴长江 | Treatment method and treatment device of cyanogen-containing chromium-containing electroplating wastewater |
| CN104649468A (en) * | 2014-11-06 | 2015-05-27 | 东莞汇金环境科技有限公司 | Emission treatment system for high-concentration nickel chloride produced during electroplating |
| CN106242115A (en) * | 2016-08-25 | 2016-12-21 | 江苏环球环境工程集团有限公司 | A kind of electroplating comprehensive waste water pretreatment unit |
| CN106865831A (en) * | 2017-04-19 | 2017-06-20 | 杭州意来客电器设备有限公司 | Sewage water treatment method and application |
| CN107010758A (en) * | 2017-05-10 | 2017-08-04 | 沈阳环境科学研究院 | A kind of electroplating wastewater total system and method |
-
2013
- 2013-05-22 CN CN2013202825813U patent/CN203307148U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326599A (en) * | 2014-10-25 | 2015-02-04 | 吴长江 | Treatment method and treatment device of cyanogen-containing chromium-containing electroplating wastewater |
| CN104649468A (en) * | 2014-11-06 | 2015-05-27 | 东莞汇金环境科技有限公司 | Emission treatment system for high-concentration nickel chloride produced during electroplating |
| CN106242115A (en) * | 2016-08-25 | 2016-12-21 | 江苏环球环境工程集团有限公司 | A kind of electroplating comprehensive waste water pretreatment unit |
| CN106865831A (en) * | 2017-04-19 | 2017-06-20 | 杭州意来客电器设备有限公司 | Sewage water treatment method and application |
| CN107010758A (en) * | 2017-05-10 | 2017-08-04 | 沈阳环境科学研究院 | A kind of electroplating wastewater total system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA NANFANG YUHANG ENVIRONMENTAL ENGINEERING Free format text: FORMER OWNER: ZHUZHOU NANFANG SPACE NAVIGATION INDUSTRY CO., LTD. Effective date: 20140411 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 412002 ZHUZHOU, HUNAN PROVINCE TO: 410000 CHANGSHA, HUNAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140411 Address after: 410000 C4 building, C block, Hexi hi tech Industrial Development Zone, Changsha, Hunan, Changsha, 5 Patentee after: CHANGSHA NANFANG AVIATION ENVIRONMENTAL ENGINEERING CO., LTD. Address before: Dong Jia Duan Jianguo Road 412002 in Hunan province Zhuzhou city Lusong District No. 1 Patentee before: Zhuzhou Nanfang Aviation Environmental Engineering Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140522 |