CN103922500B - Zero discharge processor for electronickelling rinsing waste water and processing method thereof - Google Patents
Zero discharge processor for electronickelling rinsing waste water and processing method thereof Download PDFInfo
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Abstract
The invention relates to a zero discharge processor for electronickelling rinsing waste water and a processing method thereof, relating to treatment of electroplating waste water. The processor comprises a raw water box, a centrifugal pump, a multi-media filter, a raw water filter, an ultra-filter, a middle water box, a booster pump, a filter, a high pressure pump, a reverse osmosis membrane separation device and a thick water box, wherein the waste water sequentially passes through the raw water box, the centrifugal pump, and the multi-media filter, then after refined filtration and ultrafiltration, the waste water is divided into concentrated liquid and permeating liquid, the concentrated liquid flows back, the permeating liquid enters the middle water box, after refined filtration and filtration, the waste water in the middle water box is separated into concentrated liquid and permeating liquid, the concentrated liquid flows in two ways, one way of the concentrated liquid enters the thick water box, the other way flows back, the permeating liquid is filtered and separated into concentrated liquid and permeating liquid, the concentrated liquid flows back, after refined filtration, concentrated liquid collected by the thick water box is filtered to be divided into concentrated liquid and permeating liquid, the concentrated liquid flows back, high concentration nickel containing solution is sent to a production line for reuse, in concentration, the permeating liquid generated by the three-level reverse osmosis membrane separation device flows back.
Description
Technical field
The present invention relates to electroplating wastewater processing, particularly relate to a kind of electronickelling poaching wastewater zero discharge treatment device and treatment process thereof.
Background technology
Along with society is growing, low-carbon (LC), less energy-consumption.Low pollution technique has become following production inevitable development trend, Electroplating Operations waste water discharge-reducing and energy-conservation be also following developing direction.The sub-prime shunting process of current electroplating wastewater, noble metal are recycled, water cycle uses is the three large emphasis emphasized in electroplating wastewater processing.Based on this, promote the electroplating waste processing process adapting to new situations requirement and just seem particularly necessary.And reverse osmosis membrane separation technology is as a new and high technology, because of advantages such as its separation is efficient, energy-conservation, non-secondary pollution, easy to operate, floor space is few, therefore, utilizing reverse osmosis membrane separation technical finesse to reclaim electroplating wastewater becomes a good method.
Chinese patent CN202492427U discloses the electronickelling waste water recycling treatment system that a kind for the treatment of effect is good, can recycle noble metal, comprise the nickel-containing waste water collecting tank, quartz filter, the activated charcoal filter that are connected successively, the membrane separation concentrated compression apparatus of strainer, ultra-filtration equipment, one-level and secondary membrane separation concentration device; The membrane separation concentrated compression apparatus of described one-level is connected reuse water collection box with the water outlet of secondary membrane separation concentration device.
Chinese patent CN203065591U discloses a kind of electronickelling waste water and carries nickel treatment unit, described electronickelling storage of waste water bucket is connected with electrolytic system by pipe connecting, electrolytic system is connected with sewage treatment equipment by wastewater treatment pipe connecting, electrolytic system is connected with waste liquid storage barrel after electrolysis by waste water reclamation pipe connecting, described electrolytic system also comprises electrolytic pole board, circulation of elecrolyte pipe, and electrolytic pole board is arranged in electrolytic solution.
Chinese patent CN101549920 discloses a kind of method for recovering nickel salts in nickel-electroplating waste water.Comprise the following steps: (1) adds alkali in electronickelling waste water; (2) the electronickelling waste water after alkaline cleaning flows into settling vessel precipitation, through precipitation, carry out nickel salt press filtration in the electronickelling waste water input pressure filter containing throw out nickel salt, the throw out nickel salt clear water obtained repeatedly washs, obtain pure nickel salt, get final product direct reuse in electronickelling groove; (3) supernatant liquor flows into neutralization tank neutralization.
Summary of the invention
The object of this invention is to provide a kind of electronickelling poaching wastewater zero discharge treatment device and treatment process thereof.
Described electronickelling poaching wastewater zero discharge treatment device is provided with:
Raw water box, impeller pump, more medium filter, raw water filtration device, ultra-fine filter, intermediate water tank, one-level booster pump, grade one filter, one-level high-pressure pump, first-stage reverse osmosis membrane separation unit, secondary high-pressure pump, two-pass reverse osmosis membrane separation unit, dense water tank, three grades of topping-up pumps, tertiary filter, three grades of high-pressure pump and three grades of reverse osmosis membrane separation devices;
The entrance end of described more medium filter is connected with the exit end of raw water box through impeller pump by pipeline, and the exit end of more medium filter is connected by the entrance end of pipeline with raw water filtration device; The entrance end of described ultra-fine filter is connected by the exit end of pipeline with raw water filtration device, and the concentrated solution outlet end of ultra-fine filter is connected with the entrance end of raw water box by pipeline, and the permeate outlet end of ultra-fine filter is connected with the entrance end of intermediate water tank by pipeline; The entrance end of described grade one filter is connected with the exit end of intermediate water tank through one-level booster pump by pipeline, and the exit end of grade one filter is connected through the entrance end of one-level high-pressure pump with first-stage reverse osmosis membrane separation unit by pipeline; The permeate outlet end of described first-stage reverse osmosis membrane separation unit is connected through the entrance end of secondary high-pressure pump with two-pass reverse osmosis membrane separation unit by pipeline, the concentrated solution outlet end of first-stage reverse osmosis membrane separation unit is divided into two-way by pipeline, one tunnel the 1st stopping valve is connected with the entrance end of intermediate water tank, and another Lu Jing 2 stopping valve is connected with the entrance end of dense water tank; The concentrated solution outlet end of described two-pass reverse osmosis membrane separation unit is connected with the entrance end of intermediate water tank by pipeline, and the permeate outlet end of two-pass reverse osmosis membrane separation unit transports to production line by pipeline, as clear water production reuse;
The entrance end of described tertiary filter is connected with the exit end of dense water tank through three grades of topping-up pumps by pipeline, and the exit end of tertiary filter is connected with the entrance end of three grades of reverse osmosis membrane separation devices through three grades of high-pressure pump by pipeline; The permeate outlet end of described three grades of reverse osmosis membrane separation devices is connected with the entrance end of raw water box by reflux line, and described reflux line is provided with under meter; The concentrated solution outlet end of three grades of reverse osmosis membrane separation devices is connected by the entrance end of reflux line with dense water tank, and described reflux line is provided with specific conductivity table;
The concentrated solution outlet end of described three grades of reverse osmosis membrane separation devices is provided with three groups of outlet conduits, often organize on outlet conduit and be equipped with motorized valve and the 3rd stopping valve, often organize motorized valve different with the solution transit dose set by the 3rd stopping valve, circulation concentrated solution can select reflux line automatically according to flow difference;
Described dense tank outlet end is connected with production nickel bath by pipeline.
The tank material of described raw water box, intermediate water tank, dense water tank can adopt PE impregnating material.
Coaxial self-priming acid and alkali-proof pump preferably selected by described impeller pump, and the model that such as Kunshan national treasure filter company limited produces is the coaxial self-priming acid and alkali-proof pump of KB-50032H.
The shell of described more medium filter preferably selects Glass fibre reinforced plastic tub, the Glass fibre reinforced plastic tub of the model 1465 that such as Pentair Water company produces, pebbles (model 4.0 ~ 8.0mm preferably selected from the bottom to top by built-in filtering material, Zhangpu Hai Hong quartz sand company limited of manufacturer), quartz sand (model 2.0 ~ 4.0mm, Zhangpu Hai Hong quartz sand company limited of manufacturer), quartz sand (model 1.0 ~ 2.0mm, Zhangpu Hai Hong quartz sand company limited of manufacturer), cocoanut active charcoal (model HS-cocoanut active charcoal 6 ~ 12 order (703B), Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer).
Common flange form 304 Materials Filter preferably selected by described raw water filtration device, and built-in aperture is the cotton post of PP (such as model Φ 250-20 cun of 7 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described ultra-fine filter preferably selects inner pressed, and membrane module adopts polysulfones material membrane module (such as model IA200, Shandong Zhao Jinmotian company limited of manufacturer).
Described one-level booster pump preferably selects 316L material (such as model C DLF8-4, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described grade one filter preferably selects common flange form 304 Materials Filter, and built-in aperture is the cotton post of PP (such as model Φ 250-30 cun of 7 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described one-level high-pressure pump preferably selects 316L material (such as model C DLF8-12, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described first-stage reverse osmosis membrane separation unit putamina preferably selects glass steel material (such as model FRP8040 putamina-4 core-300PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), enhancement type low stain reverse-osmosis membrane element (such as model PROC10, Hydranautics of manufacturer) preferably selected by built-in membrane module.
Described secondary high-pressure pump preferably selects 316L material (such as model C DLF4-14, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described two-pass reverse osmosis membrane separation unit putamina preferably selects glass steel material (such as model FRP8040 putamina-4 core-300PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), energy-saving ultra-low-pressure reverse osmosis membrane element (such as model ESPA2, Hydranautics of manufacturer) preferably selected by built-in membrane module.
316L material (such as model C DLF2-9, Nanfang Pump Industry Co., Ltd. of manufacturer) preferably selected by described three grades of topping-up pumps.
Common flange form 304 Materials Filter preferably selected by described tertiary filter, and built-in aperture is the cotton post of PP (such as model Φ 200-20 cun of 5 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described three grades of high-pressure pump preferably select 316L material (such as model C DLF2-22, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described three grades of reverse osmosis membrane separation device putaminas preferably select glass steel material (such as model FRP4040 putamina-4 core-450PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), electric neutrality low stain reverse-osmosis membrane element (such as model LFC3-LD, Hydranautics of manufacturer) preferably selected by built-in membrane module.
Described electronickelling poaching wastewater Zero discharge treatment method, adopts described electronickelling poaching wastewater zero discharge treatment device, comprises the steps:
1) collection of electronickelling poaching wastewater is entered raw water box;
2) step 1) in the water outlet of raw water box enter more medium filter through impeller pump, remove the impurity such as particle, suspended substance, colloid, organism in waste water;
3) step 2) in filter after waste water enter raw water filtration device and carry out essence filter, built-in aperture is the cotton post of PP of 5 μm, filters the solid granule thing in removal waste water;
4) step 3) in after essence filter waste water enter ultra-fine filter and carry out ultrafiltration, waste water is divided into concentrated solution and permeate, and wherein concentrated solution is back to raw water box, and permeate enters intermediate water tank and treats to process further again;
5) step 4) in intermediate water tank collect waste water through one-level booster pump enter grade one filter carry out essence filter;
6) step 5) in after essence filter waste water enter first-stage reverse osmosis membrane separation unit through one-level high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution flows to and is divided into two-way, one tunnel enters dense water tank, and another road is back to intermediate water tank (object improves the clear water rate of recovery);
7) step 6) in the permeate of first-stage reverse osmosis membrane separation unit enter two-pass reverse osmosis membrane separation unit through secondary high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution is back to intermediate water tank, and the matting that permeate directly can proceed to production line after collecting continues to use;
8) step 6) in the concentrated solution collected of dense water tank enter tertiary filter through three grades of topping-up pumps and carry out essence and filter;
9) step 8) in after essence filter solution enter three grades of reverse osmosis membrane separation devices through three grades of high-pressure pump again and filter, solution is divided into concentrated solution and permeate, wherein concentrated solution is back to dense water tank, continue circulation concentrated, (judged by the display of specific conductivity table) when the nickel concentration of solution in dense water tank reaches the nickel concentration of setting, stop circulation, and by the high density solution containing nickel in dense water tank by continuing in Cemented filling to production line coating bath to use, in concentration process, the permeate of three grades of reverse osmosis membrane separation device generations is back to raw water box simultaneously.
In step 9) in, owing to increasing with concentration cycles number of times, in dense water tank, strength of solution increases, the permeate of three grades of reverse osmosis membrane separation device generations reduces gradually under pressure, namely thickening efficiency reduces, dense water out end for three grades of reverse osmosis membrane separation devices described in the problems referred to above is provided with three groups of outlet conduits, often organize on outlet conduit and be equipped with motorized valve and stopping valve, often organize motorized valve different with the solution transit dose set by stopping valve, namely limited different through pressure, therefore remaining on through liquid measure in certain limit (being judged by the display of permeate reflux line flow meter), circulation concentrated solution can select reflux line according to required through pressure automatically, improve thickening efficiency, reduce energy consumption.
Beneficial effect of the present invention is mainly reflected in:
1) waste water can reach production reuse standard after treatment, and the clear water rate of recovery is high, realizes the production scene reuse of waste water, saves great lot of water resources;
2) in the nickeliferous dense water produced after wastewater treatment, nickel concentration can control according to demand;
3) the dense water of the nickel produced after wastewater treatment can be used as raw materials for production and continues return-enclosure utilization;
4) waste water efficiency is processed high and there is energy-saving effect;
5) nickel-plating waste water Zero-discharge reuse can be realized, not to discharge harmful in environment, preserve the ecological environment.
Accompanying drawing explanation
Fig. 1 is electronickelling poaching wastewater zero discharge treatment device example structure of the present invention composition schematic diagram.
Embodiment
See Fig. 1, described electronickelling poaching wastewater zero discharge treatment device embodiment is provided with: raw water box 1, impeller pump 2, more medium filter 3, raw water filtration device 4, ultra-fine filter 5, intermediate water tank 6, one-level booster pump 7, grade one filter 8, one-level high-pressure pump 9, first-stage reverse osmosis membrane separation unit 10, secondary high-pressure pump 11, two-pass reverse osmosis membrane separation unit 12, dense water tank 13, three grades of topping-up pumps 14, tertiary filter 15, three grades of high-pressure pump 16 and three grades of reverse osmosis membrane separation devices 17.
The entrance end of described more medium filter 3 is connected through the exit end of impeller pump 2 with raw water box 1 by pipeline, and the exit end of more medium filter 3 is connected by the entrance end of pipeline with raw water filtration device 4; The entrance end of described ultra-fine filter 5 is connected by the exit end of pipeline with raw water filtration device 4, and the concentrated solution outlet end of ultra-fine filter 5 is connected by the entrance end of pipeline with raw water box 1, and the permeate outlet end of ultra-fine filter 5 is connected by the entrance end of pipeline with intermediate water tank 6; The entrance end of described grade one filter 8 is connected through the exit end of one-level booster pump 7 with intermediate water tank 6 by pipeline, and the exit end of grade one filter 8 is connected through the entrance end of one-level high-pressure pump 9 with first-stage reverse osmosis membrane separation unit 10 by pipeline; The permeate outlet end of described first-stage reverse osmosis membrane separation unit 10 is connected through the entrance end of secondary high-pressure pump 11 with two-pass reverse osmosis membrane separation unit 12 by pipeline, the concentrated solution outlet end of first-stage reverse osmosis membrane separation unit 10 is divided into two-way by pipeline, one tunnel the 1st stopping valve 61 is connected with the entrance end of intermediate water tank 6, and another Lu Jing 2 stopping valve 131 is connected with the entrance end of dense water tank 13; The concentrated solution outlet end of described two-pass reverse osmosis membrane separation unit 12 is connected by the entrance end of pipeline with intermediate water tank 6, the permeate outlet end of two-pass reverse osmosis membrane separation unit 12 transports to production line by pipeline, as clear water production reuse (being labeled as B in Fig. 1).
The entrance end of described tertiary filter 15 is connected through the exit end of three grades of topping-up pumps 14 with dense water tank 13 by pipeline, and the exit end of tertiary filter 15 is connected with the entrance end of three grades of reverse osmosis membrane separation devices 17 through three grades of high-pressure pump 16 by pipeline; The permeate outlet end of described three grades of reverse osmosis membrane separation devices 17 is connected by the entrance end of reflux line with raw water box 1, and described reflux line is provided with under meter P1; The concentrated solution outlet end of three grades of reverse osmosis membrane separation devices 17 is connected by the entrance end of reflux line with dense water tank 13, and described reflux line is provided with specific conductivity table P2.
The concentrated solution outlet end of described three grades of reverse osmosis membrane separation devices 17 is provided with three groups of outlet conduits, often organize on outlet conduit and be equipped with motorized valve P171 and the 3rd stopping valve P172, often organize motorized valve P171 different with the solution transit dose set by the 3rd stopping valve P172, circulation concentrated solution can select reflux line automatically according to flow difference.
Described dense water tank 13 exit end is connected with production nickel bath C by pipeline.
In FIG, the waste water inlet that A is raw water box 1 is marked.
The tank material of described raw water box, intermediate water tank, dense water tank can adopt PE impregnating material.
Coaxial self-priming acid and alkali-proof pump preferably selected by described impeller pump, and the model that such as Kunshan national treasure filter company limited produces is the coaxial self-priming acid and alkali-proof pump of KB-50032H.
The shell of described more medium filter preferably selects Glass fibre reinforced plastic tub, the Glass fibre reinforced plastic tub of the model 1465 that such as Pentair Water company produces, pebbles (model 4.0 ~ 8.0mm preferably selected from the bottom to top by built-in filtering material, Zhangpu Hai Hong quartz sand company limited of manufacturer), quartz sand (model 2.0 ~ 4.0mm, Zhangpu Hai Hong quartz sand company limited of manufacturer), quartz sand (model 1.0 ~ 2.0mm, Zhangpu Hai Hong quartz sand company limited of manufacturer), cocoanut active charcoal (model HS-cocoanut active charcoal 6 ~ 12 order (703B), Guangzhou Hong Shengtan industry Chemical Co., Ltd. of manufacturer).
Common flange form 304 Materials Filter preferably selected by described raw water filtration device, and built-in aperture is the cotton post of PP (such as model Φ 250-20 cun of 7 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described ultra-fine filter preferably selects inner pressed, and membrane module adopts polysulfones material membrane module (such as model IA200, Shandong Zhao Jinmotian company limited of manufacturer).
Described one-level booster pump preferably selects 316L material (such as model C DLF8-4, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described grade one filter preferably selects common flange form 304 Materials Filter, and built-in aperture is the cotton post of PP (such as model Φ 250-30 cun of 7 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described one-level high-pressure pump preferably selects 316L material (such as model C DLF8-12, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described first-stage reverse osmosis membrane separation unit putamina preferably selects glass steel material (such as model FRP8040 putamina-4 core-300PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), enhancement type low stain reverse-osmosis membrane element (such as model PROC10, Hydranautics of manufacturer) preferably selected by built-in membrane module.
Described secondary high-pressure pump preferably selects 316L material (such as model C DLF4-14, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described two-pass reverse osmosis membrane separation unit putamina preferably selects glass steel material (such as model FRP8040 putamina-4 core-300PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), energy-saving ultra-low-pressure reverse osmosis membrane element (such as model ESPA2, Hydranautics of manufacturer) preferably selected by built-in membrane module.
316L material (such as model C DLF2-9, Nanfang Pump Industry Co., Ltd. of manufacturer) preferably selected by described three grades of topping-up pumps.
Common flange form 304 Materials Filter preferably selected by described tertiary filter, and built-in aperture is the cotton post of PP (such as model Φ 200-20 cun of 5 cores, Fuyang Kun Yuan filter plant company limited of manufacturer) of 5 μm.
Described three grades of high-pressure pump preferably select 316L material (such as model C DLF2-22, Nanfang Pump Industry Co., Ltd. of manufacturer).
Described three grades of reverse osmosis membrane separation device putaminas preferably select glass steel material (such as model FRP4040 putamina-4 core-450PSI, Changzhou Fu Naite glass reinforced plastic company limited of manufacturer), electric neutrality low stain reverse-osmosis membrane element (such as model LFC3-LD, Hydranautics of manufacturer) preferably selected by built-in membrane module.
Described electronickelling poaching wastewater Zero discharge treatment method, adopts described electronickelling poaching wastewater zero discharge treatment device, comprises the steps:
1) collection of electronickelling poaching wastewater is entered raw water box;
2) step 1) in the water outlet of raw water box enter more medium filter through impeller pump, remove the impurity such as particle, suspended substance, colloid, organism in waste water;
3) step 2) in filter after waste water enter raw water filtration device and carry out essence filter, built-in aperture is the cotton post of PP of 5 μm, filters the solid granule thing in removal waste water;
4) step 3) in after essence filter waste water enter ultra-fine filter and carry out ultrafiltration, waste water is divided into concentrated solution and permeate, and wherein concentrated solution is back to raw water box, and permeate enters intermediate water tank and treats to process further again;
5) step 4) in intermediate water tank collect waste water through one-level booster pump enter grade one filter carry out essence filter;
6) step 5) in after essence filter waste water enter first-stage reverse osmosis membrane separation unit through one-level high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution flows to and is divided into two-way, one tunnel enters dense water tank, and another road is back to intermediate water tank (object improves the clear water rate of recovery);
7) step 6) in the permeate of first-stage reverse osmosis membrane separation unit enter two-pass reverse osmosis membrane separation unit through secondary high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution is back to intermediate water tank, and the matting that permeate directly can proceed to production line after collecting continues to use;
8) step 6) in the concentrated solution collected of dense water tank enter tertiary filter through three grades of topping-up pumps and carry out essence and filter;
9) step 8) in after essence filter solution enter three grades of reverse osmosis membrane separation devices through three grades of high-pressure pump again and filter, solution is divided into concentrated solution and permeate, wherein concentrated solution is back to dense water tank, continue circulation concentrated, (judged by the display of specific conductivity table) when the nickel concentration of solution in dense water tank reaches the nickel concentration of setting, stop circulation, and by the high density solution containing nickel in dense water tank by continuing in Cemented filling to production line coating bath to use, in concentration process, the permeate of three grades of reverse osmosis membrane separation device generations is back to raw water box simultaneously.
In step 9) in, owing to increasing with concentration cycles number of times, in dense water tank, strength of solution increases, the permeate of three grades of reverse osmosis membrane separation device generations reduces gradually under pressure, namely thickening efficiency reduces, dense water out end for three grades of reverse osmosis membrane separation devices described in the problems referred to above is provided with three groups of outlet conduits, often organize on outlet conduit and be equipped with motorized valve and stopping valve, often organize motorized valve different with the solution transit dose set by stopping valve, namely limited different through pressure, therefore remaining on through liquid measure in certain limit (being judged by the display of permeate reflux line flow meter), circulation concentrated solution can select reflux line according to required through pressure automatically, improve thickening efficiency, reduce energy consumption.
Claims (5)
1. electronickelling poaching wastewater zero discharge treatment device, is characterized in that being provided with raw water box, impeller pump, more medium filter, raw water filtration device, ultra-fine filter, intermediate water tank, one-level booster pump, grade one filter, one-level high-pressure pump, first-stage reverse osmosis membrane separation unit, secondary high-pressure pump, two-pass reverse osmosis membrane separation unit, dense water tank, three grades of topping-up pumps, tertiary filter, three grades of high-pressure pump and three grades of reverse osmosis membrane separation devices;
The entrance end of described more medium filter is connected with the exit end of raw water box through impeller pump by pipeline, and the exit end of more medium filter is connected by the entrance end of pipeline with raw water filtration device; The entrance end of described ultra-fine filter is connected by the exit end of pipeline with raw water filtration device, and the concentrated solution outlet end of ultra-fine filter is connected with the entrance end of raw water box by pipeline, and the permeate outlet end of ultra-fine filter is connected with the entrance end of intermediate water tank by pipeline; The entrance end of described grade one filter is connected with the exit end of intermediate water tank through one-level booster pump by pipeline, and the exit end of grade one filter is connected through the entrance end of one-level high-pressure pump with first-stage reverse osmosis membrane separation unit by pipeline; The permeate outlet end of described first-stage reverse osmosis membrane separation unit is connected through the entrance end of secondary high-pressure pump with two-pass reverse osmosis membrane separation unit by pipeline, the concentrated solution outlet end of first-stage reverse osmosis membrane separation unit is divided into two-way by pipeline, one tunnel the 1st stopping valve is connected with the entrance end of intermediate water tank, and another Lu Jing 2 stopping valve is connected with the entrance end of dense water tank; The concentrated solution outlet end of described two-pass reverse osmosis membrane separation unit is connected with the entrance end of intermediate water tank by pipeline, and the permeate outlet end of two-pass reverse osmosis membrane separation unit transports to production line by pipeline, as clear water production reuse;
The entrance end of described tertiary filter is connected with the exit end of dense water tank through three grades of topping-up pumps by pipeline, and the exit end of tertiary filter is connected with the entrance end of three grades of reverse osmosis membrane separation devices through three grades of high-pressure pump by pipeline; The permeate outlet end of described three grades of reverse osmosis membrane separation devices is connected with the entrance end of raw water box by reflux line, and described reflux line is provided with under meter; The concentrated solution outlet end of three grades of reverse osmosis membrane separation devices is connected by the entrance end of reflux line with dense water tank, and described reflux line is provided with specific conductivity table;
The concentrated solution outlet end of described three grades of reverse osmosis membrane separation devices is provided with three groups of outlet conduits, often organize on outlet conduit and be equipped with motorized valve and the 3rd stopping valve, often organize motorized valve different with the solution transit dose set by the 3rd stopping valve, circulation concentrated solution can select reflux line automatically according to flow difference;
Described dense tank outlet end is connected with production nickel bath by pipeline;
The tank material of described raw water box, intermediate water tank, dense water tank adopts PE impregnating material;
Coaxial self-priming acid and alkali-proof pump selected by described impeller pump;
The shell of described more medium filter selects Glass fibre reinforced plastic tub, and built-in filtering material selects pebbles, quartz sand, quartz sand, cocoanut active charcoal from the bottom to top;
Common flange form 304 Materials Filter selected by described raw water filtration device, and built-in aperture is the cotton post of PP of 5 μm;
Inner pressed selected by described ultra-fine filter, and membrane module adopts polysulfones material membrane module.
2. electronickelling poaching wastewater zero discharge treatment device as claimed in claim 1, is characterized in that described one-level booster pump selects 316L material;
Described grade one filter selects common flange form 304 Materials Filter, and built-in aperture is the cotton post of PP of 5 μm;
Described one-level high-pressure pump selects 316L material;
Described first-stage reverse osmosis membrane separation unit putamina selects glass steel material, and enhancement type low stain reverse-osmosis membrane element selected by built-in membrane module.
3. electronickelling poaching wastewater zero discharge treatment device as claimed in claim 1, is characterized in that described secondary high-pressure pump selects 316L material;
Described two-pass reverse osmosis membrane separation unit putamina selects glass steel material, and energy-saving ultra-low-pressure reverse osmosis membrane element selected by built-in membrane module.
4. electronickelling poaching wastewater zero discharge treatment device as claimed in claim 1, is characterized in that 316L material selected by described three grades of topping-up pumps;
Common flange form 304 Materials Filter selected by described tertiary filter, and built-in aperture is the cotton post of PP of 5 μm;
Described three grades of high-pressure pump select 316L material;
Described three grades of reverse osmosis membrane separation device putaminas select glass steel material, and electric neutrality low stain reverse-osmosis membrane element selected by built-in membrane module.
5. electronickelling poaching wastewater Zero discharge treatment method, it is characterized in that adopting electronickelling poaching wastewater zero discharge treatment device as claimed in claim 1, described method comprises the steps:
1) collection of electronickelling poaching wastewater is entered raw water box;
2) step 1) in the water outlet of raw water box enter more medium filter through impeller pump, remove particle, suspended substance, colloid, organic impurities in waste water;
3) step 2) in filter after waste water enter raw water filtration device and carry out essence filter, built-in aperture is the cotton post of PP of 5 μm, filters the solid granule thing in removal waste water;
4) step 3) in after essence filter waste water enter ultra-fine filter and carry out ultrafiltration, waste water is divided into concentrated solution and permeate, and wherein concentrated solution is back to raw water box, and permeate enters intermediate water tank and treats to process further again;
5) step 4) in intermediate water tank collect waste water through one-level booster pump enter grade one filter carry out essence filter;
6) step 5) in after essence filter waste water enter first-stage reverse osmosis membrane separation unit through one-level high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution flows to and is divided into two-way, one tunnel enters dense water tank, another road is back to intermediate water tank, for improving the clear water rate of recovery;
7) step 6) in the permeate of first-stage reverse osmosis membrane separation unit enter two-pass reverse osmosis membrane separation unit through secondary high-pressure pump again and carry out filtering separation, waste water is divided into concentrated solution and permeate, wherein concentrated solution is back to intermediate water tank, and the matting that permeate directly can proceed to production line after collecting continues to use;
8) step 6) in the concentrated solution collected of dense water tank enter tertiary filter through three grades of topping-up pumps and carry out essence and filter;
9) step 8) in after essence filter solution enter three grades of reverse osmosis membrane separation devices through three grades of high-pressure pump again and filter, solution is divided into concentrated solution and permeate, wherein concentrated solution is back to dense water tank, continue circulation concentrated, judged by the display of specific conductivity table, when in dense water tank, the nickel concentration of solution reaches the nickel concentration of setting, stop circulation, and by the high density solution containing nickel in dense water tank by continuing in Cemented filling to production line coating bath to use, in concentration process, the permeate of three grades of reverse osmosis membrane separation device generations is back to raw water box simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187917.7A CN103922500B (en) | 2014-05-06 | 2014-05-06 | Zero discharge processor for electronickelling rinsing waste water and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187917.7A CN103922500B (en) | 2014-05-06 | 2014-05-06 | Zero discharge processor for electronickelling rinsing waste water and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN108249604A (en) * | 2016-12-28 | 2018-07-06 | 南京源泉环保科技股份有限公司 | A kind of method and system for the online reuse zero-emission of electroplate rinsing wastewater |
| CN106673246A (en) * | 2017-02-07 | 2017-05-17 | 江苏澳特克环境科技有限公司 | Waste liquid treatment and direct discharging system |
| CN107032452A (en) * | 2017-06-05 | 2017-08-11 | 强胜精密机械(苏州)有限公司 | A kind of parts clean Waste Water Treatment |
| CN109293034A (en) * | 2018-11-29 | 2019-02-01 | 珠海杰赛科技有限公司 | A kind of processing system and processing method of nickel-containing waste water |
| CN112010479A (en) * | 2019-05-30 | 2020-12-01 | 荆门市格林美新材料有限公司 | Treatment process of ternary precursor wastewater |
| CN110937656A (en) * | 2019-10-17 | 2020-03-31 | 珠海市江河海水处理科技股份有限公司 | Full-automatic electroplating nickel wastewater zero-discharge equipment and operation method thereof |
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