CN102442734B - Reclaimed water reusing device of industrial wastewater - Google Patents
Reclaimed water reusing device of industrial wastewater Download PDFInfo
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- CN102442734B CN102442734B CN 201010501880 CN201010501880A CN102442734B CN 102442734 B CN102442734 B CN 102442734B CN 201010501880 CN201010501880 CN 201010501880 CN 201010501880 A CN201010501880 A CN 201010501880A CN 102442734 B CN102442734 B CN 102442734B
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Abstract
The invention relates to a reclaimed water reusing device of industrial wastewater, comprising a wastewater preprocessing unit and a reclaimed water reusing unit which are arranged in order, wherein, the wastewater preprocessing unit comprises a quartz sand filter selecting quartz sand as a filtering filling material, a bag filter using a filter bag as a filter core, an activated carbon filter using active carbon as a filtering filling material, a heavy metal capture for absorbing heavy metal ions in waste water, and a precise filter for intercepting leaked particles from the heavy metal capture which are arranged in order, and the reclaimed water reusing unit comprises a security filter for filtering the leaked filter filling material and suspending particles, and a special anti-pollution reverse osmosis membrane module which comprises at least one composite membrane layer, and the composite membrane layer comprises a polyamide superficial layer and a polysulfone supporting layer. The device has the advantages of high stability, simple and convenient operation, and high automation degree, combines a plurality of functions, and can effectively treat electroplating mixed wastewater.
Description
Technical field
The present invention relates to a kind of field of waste water treatment, particularly relate to a kind of middle water recycling device of trade effluent.
Background technology
At present, for discharge of wastewater, the electroplating wastewater of factory's discharging has accounted for significantly ratio.Electroplating wastewater is mainly derived from the cleaning for plating piece; The waste liquid of bath filter wash-down water and waste plating solution and plating shop " run, drip, leak " discharging.And the harm of electroplating wastewater is well-known, and electroplating wastewater is with regard to its total amount, and little such as the water yield of the industries such as papermaking, printing and dyeing, chemical industry, pollution face is narrow, but because Electroplate Factory's point distributes extensively, and the kind of contained highly toxic substance is many in the waste water, its hazardness is very large.Unprocessed electroplating wastewater up to standard enters the river course, the pond permeates the ground, and not only can endanger environment, and can polluted drinking water and process water.Contain the foreign material that the heavy metal ion such as chromium zinc, copper, cadmium, lead, nickel and acid, alkali prussiate etc. have very large toxicity in the electroplating wastewater, what have also belongs to carcinogenic and to the highly toxic substance of distortion, therefore must be processed in earnest, in order to avoid people are worked the mischief.
Summary of the invention
The object of the invention provides a kind of middle water recycling device of trade effluent, and this device mainly carries out middle water reuse to electroplating wastewater, and water conservation reduces running cost.
For achieving the above object, the technical solution used in the present invention is:
A kind of middle water recycling device of trade effluent, comprise successively the sewage pretreatment device and the middle water recycling device that arrange mutually, described sewage pretreatment device comprise the selection quartz sand that arranges mutually successively as the quartz filter of filter packing, use filter bag as the deep bed filter of filter core, use gac as the activated charcoal filter of filter packing, be used for the absorption heavy metal ions in wastewater the heavy metal chelating device, be used for tackling the accurate filter that described heavy metal chelating device is revealed particle; Described middle water recycling device comprises for the filter packing that filters leakage and cartridge filter and the anti-pollution reverse osmosis membrane assembly of suspended particle, described anti-pollution reverse osmosis membrane assembly comprises at least one composite film, and described composite film comprises polyamide surface layer and polysulfone supporting layer.
Preferably, described quartz filter selection particle diameter is the quartz sand of 1～4mm.
Preferably, the filter core of described activated charcoal filter bottom is filled out and is provided with one deck quartz sand.
Preferably, described deep bed filter is provided with 3, the connection that is in parallel of 3 described deep bed filter.
Preferably, be provided with between described deep bed filter and the activated charcoal filter for the ultra-filtration equipment of removing the waste water organic substance.
Preferably, each described strainer upper end is provided with venting port, the bottom is provided with sewage draining exit; Ingress and the exit of each described strainer are provided with tensimeter.
Further preferably, the material of each described strainer adopts the carbon steel line with rubber.
Preferably, described middle water recycling device also comprises topping-up pump and high-pressure pump, and described topping-up pump is arranged on described cartridge filter inlet end, and described high-pressure pump is arranged between described cartridge filter and the anti-pollution reverse osmosis membrane assembly.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect: stability of the present invention is high, simple to operation, and level of automation is high; Integrate several functions, can effectively process composite waste of electrolytic plating.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention;
Wherein: 1, Wastewater Pretreatment part; 2, middle water reuse part; 3, quartz filter; 4, deep bed filter; 5, ultra-filtration equipment; 6, activated charcoal filter; 7, heavy metal chelating device; 8, accurate filter; 9, intermediate water tank; 10, topping-up pump; 11, cartridge filter; 12, high-pressure pump; 13, anti-pollution reverse osmosis membrane assembly; 14, broken chromium pond; 15, broken cyanide water tank; 16, settling tank.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
A kind of middle water recycling device of trade effluent, be divided into Wastewater Pretreatment part 1 and middle water reuse part 2, Wastewater Pretreatment part 1 mainly comprises the following strainer that arranges mutually successively: quartz filter 3, deep bed filter 4, ultra-filtration equipment 5, activated charcoal filter 6, heavy metal chelating device 7, accurate filter 8; Middle water reuse part 2 mainly comprises middle water recycling device.
Wherein: quartz filter 3 disposes one, and to select with diameter be that the quartz sand of 1～4mm is as filler.Deep bed filter 4 uses filter bag as filter core, utilize pressure to see through filter cloth by water, with the interception water in than small granular suspended matters matter, alleviate the pressure of subsequent disposal, in the present embodiment, deep bed filter 4 disposes 3,3 deep bed filter 4 are installed in parallel, and are used alternatingly, and increase at 1 deep bed filter 4 hydraulic pressure, when water flow reduces, switch other 1 use.Ultra-filtration equipment 5 is mainly used in waste water is carried out advanced treatment, to guarantee that follow-up anti-pollution reverse osmosis membrane assembly 13 can move normally, ultra-filtration equipment 5 uses special membrane material, removes chemical oxygen demand (COD) (COD) and colloid in the water, plays the effect that purifies water.Activated charcoal filter 6 disposes 1, in fill out high quality fruit shell mould activated carbon, utilize the surface-area of activated carbon large, the materials such as the fine particle in the characteristics such as the excellent adsorption absorption waste water, colloid, COD, the filter core bottom of activated charcoal filter 6 is filled out and is provided with a small amount of macrobead quartz sand as supporting layer, prevents that the leakage of gac from affecting effluent quality.Heavy metal chelating device 7 disposes 1, adopts the organic composite material Ke Bennaite (CARBONITE) of Shanghai Lu Bo novel material company limited development, the Cu in the absorption waste water
2+, Ni
2+Etc. heavy metal ion, clearance can reach more than 90%, and this material is compared with traditional sorbing material, not only has the adsorption and enrichment effect, has simultaneously ion exchanging function.Accurate filter 8 disposes 1, is used for the particulate matter that interception heavy metal chelating device 7 is revealed, and the protection ultra-filtration membrane purifies water.Above-mentioned each strainer all adopts the carbon steel line with rubber, and its upper end is provided with venting port, the bottom is provided with sewage draining exit; Ingress and the exit of each strainer are provided with tensimeter.
In addition, middle water recycling device mainly comprises being connected successively intermediate water tank 9, topping-up pump 10, cartridge filter 11, high-pressure pump 12 and anti-pollution reverse osmosis membrane assembly 13 is set.Wherein: cartridge filter 11 disposes 1, waste water enters before the reverse osmosis membrane module after pretreatment, for the filtrate of avoiding previous filter leaks and the suspended matter of failing complete filtering enter in the anti-pollution reverse osmosis membrane assembly 13, the filtering accuracy of cartridge filter 11 is 5 μ, enters high-pressure pump 12 and anti-pollution reverse osmosis membrane assembly 13 scratching films surface to prevent particle.High-pressure pump 12 is for anti-pollution reverse osmosis membrane assembly 13 provides enough intake pressures, guarantees the normal operation of anti-pollution reverse osmosis membrane assembly 13.According to the characteristic of reverse osmosis itself, need there be certain impellent to remove to overcome the resistances such as osmotic pressure, guarantee reaches the water production rate of design.Anti-pollution reverse osmosis membrane assembly 13 is cores of native system, and the water of reverse-osmosis treated can be removed trace or a small amount of heavy metal ion of omitting after process is such as heavy metal chelating device 7.This assembly is composite membrane, and upper layer is the polymeric amide material, and thickness is about 2000 dusts, and is supported by one deck micropore polysulfones layer, can bear high pressure, and mechanical tension and chemical erosion are had better resistivity, and permeant flux is large.
Below the simple working method of setting forth lower present embodiment:
For the processing of chromate waste water, at first process for chromium wherein by broken chromium pond 14, hexavalent chrome reduction is become trivalent chromium.The best pH value of chromate waste water so can carry out the pH value that acid adding (general optional hydrochloric acid HCl) is adjusted waste water by the PH table, is processed chromic requirement to satisfy between 2-3; Satisfying under the pH value condition by adding burnt (Na
2S
2O
5) hexavalent chrome reduction is become trivalent chromium, and the degree that broken chromium is processed can be controlled by ORP (redox potential), and generally ORP is presented at 340 when following, and sexavalent chrome is reduced basically.Process by broken cyanide water tank 15 for cyanide wastewater, broken cyanide is affected by temperature and PH mainly, cyanide wastewater at pH value greater than 11 o'clock, speed of response is accelerated, so pH value will control to more than 11 when Treatment of Cyanide-containing Wastewater, by adding clorox (NaClO) cyanide oxidation is become nontoxic compound, the degree that same broken cyanide is processed also can be controlled by ORP, general ORP is presented at 225 when above, and prussiate is gone up oxidized abolishing substantially.
The waste water of removing chromium, cyanogen enters quartz filter 3 after settling tank 16 sedimentations, filter in quartz filter 3 and have little time the metal hydroxides of sedimentation and the macrobead suspended matter in the waste water, and enter deep bed filter 4; In deep bed filter 4, by more short grained suspended matter in the filter cloth interception water, go forward side by side into ultrafiltration device 5; COD material in ultra-filtration equipment 5 in the filtered wastewater and some colloids, and enter activated charcoal filter 6; The material such as the fine particle in the filtered wastewater, colloid, COD again in activated charcoal filter 6 guarantees its water outlet SDI (pollution index)≤3, enters heavy metal chelating device 7; In heavy metal chelating device 7, remove Cu
2+, Ni
2+Etc. heavy metal ion, and enter accurate filter 8, the particulate matter of revealing in the removal heavy metal catcher 7 in accurate filter 8 purifies water, and finishes the pre-treatment to waste water.
Waste water enters intermediate water tank 9 after having passed through pre-treatment, the beginning Treatment for Reuse.Waste water enters cartridge filter 11 under the supercharging of topping-up pump 10, cartridge filter 11 is identical with the effect of accurate filter 8, the filtrate that removal is revealed in preprocessing process and fail the suspended matter of complete filtering, and under the effect of high-pressure pump 12, enter anti-pollution reverse osmosis membrane assembly 13, remove trace or a small amount of heavy metal ion, finish last processing, make the middle water after the processing carry out reuse.Certainly, be not that 100% waste water can both reuse, through after the primary treatment, there is approximately 30% dense water to reflux, restart primary treatment, constantly circulation is until fully can reuse.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. the middle water recycling device of a trade effluent, comprise successively the sewage pretreatment device and the middle water recycling device that arrange mutually, it is characterized in that: described sewage pretreatment device comprise the selection quartz sand that arranges mutually successively as the quartz filter of filter packing, use filter bag as the deep bed filter of filter core, use gac as the activated charcoal filter of filter packing, be used for the absorption heavy metal ions in wastewater the heavy metal chelating device, be used for tackling the accurate filter that described heavy metal chelating device is revealed particle; Described middle water recycling device comprises for the filter packing that filters leakage and cartridge filter and the anti-pollution reverse osmosis membrane assembly of suspended particle, described anti-pollution reverse osmosis membrane assembly comprises at least one composite film, and described composite film comprises polyamide surface layer and polysulfone supporting layer.
2. the middle water recycling device of trade effluent according to claim 1 is characterized in that: it is the quartz sand of 1～4mm that described quartz filter is selected particle diameter.
3. the middle water recycling device of trade effluent according to claim 1 is characterized in that: fill out bottom the filter core of described activated charcoal filter and be provided with one deck quartz sand.
4. the middle water recycling device of trade effluent according to claim 1, it is characterized in that: described deep bed filter is provided with 3, the connection that is in parallel of 3 described deep bed filter.
5. the middle water recycling device of trade effluent according to claim 1 is characterized in that: be provided with between described deep bed filter and the activated charcoal filter for the ultra-filtration equipment of removing the waste water organic substance.
6. the middle water recycling device of trade effluent according to claim 1, it is characterized in that: each described strainer upper end is provided with venting port, the bottom is provided with sewage draining exit; Ingress and the exit of each described strainer are provided with tensimeter.
7. the middle water recycling device of trade effluent according to claim 6 is characterized in that: the material employing carbon steel line with rubber of each described strainer.
8. the middle water recycling device of trade effluent according to claim 1, it is characterized in that: described middle water recycling device also comprises topping-up pump and high-pressure pump, described topping-up pump is arranged on described cartridge filter inlet end, and described high-pressure pump is arranged between described cartridge filter and the anti-pollution reverse osmosis membrane assembly.
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| CN 201010501880 CN102442734B (en) | 2010-10-11 | 2010-10-11 | Reclaimed water reusing device of industrial wastewater |
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| CN 201010501880 CN102442734B (en) | 2010-10-11 | 2010-10-11 | Reclaimed water reusing device of industrial wastewater |
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| CN102442734B true CN102442734B (en) | 2013-03-13 |
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| CN108249696A (en) * | 2017-12-30 | 2018-07-06 | 珠海市斗门区永兴盛环保工业废弃物回收综合处理有限公司 | A kind of purifying treatment method of comprehensive wastewater |
| CN108164037A (en) * | 2017-12-30 | 2018-06-15 | 珠海市斗门区永兴盛环保工业废弃物回收综合处理有限公司 | A kind of Zero-discharge purifying treatment method of high-concentration industrial electroplating wastewater |
| CN112358135A (en) * | 2020-11-16 | 2021-02-12 | 神美科技有限公司 | Industrial water treatment equipment and process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343125A (en) * | 2008-08-26 | 2009-01-14 | 昆山工研院华科生物高分子材料研究所有限公司 | Heavy metal waste water treatment process and apparatus |
| CN101838071A (en) * | 2010-05-11 | 2010-09-22 | 吴志文 | Electroplating reclaimed water recycling and treating system |
| CN201809239U (en) * | 2010-10-11 | 2011-04-27 | 张家港市三星净化设备制造有限公司 | Reclaimed water recycling device of industrial waste water |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343125A (en) * | 2008-08-26 | 2009-01-14 | 昆山工研院华科生物高分子材料研究所有限公司 | Heavy metal waste water treatment process and apparatus |
| CN101838071A (en) * | 2010-05-11 | 2010-09-22 | 吴志文 | Electroplating reclaimed water recycling and treating system |
| CN201809239U (en) * | 2010-10-11 | 2011-04-27 | 张家港市三星净化设备制造有限公司 | Reclaimed water recycling device of industrial waste water |
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Address after: 215631 Jiangsu city of Zhangjiagang Province Jin Gang Zhen Zhu Jia Dang Houcheng Industrial Zone Patentee after: ZHANGJIAGANG GREEN SANXING PURIFICATION SCIENCE AND TECHNOLOGY CO.,LTD. Address before: 215631 Jiangsu city of Zhangjiagang Province Jin Gang Zhen Zhu Jia Dang Houcheng Industrial Zone Patentee before: Zhangjiagang Sanxing Purification Machinery Co.,Ltd. |
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Address after: 215631 Jin Gang Zhen Zhu Jia Dang Cun, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang green Samsung Purification Technology Co.,Ltd. Address before: 215631 Houcheng zhujiadang Industrial Zone, Jingang town, Zhangjiagang City, Jiangsu Province Patentee before: ZHANGJIAGANG GREEN SANXING PURIFICATION SCIENCE AND TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20211028 Address after: 215631 No. 63, group 9, Zhanwen village, Jingang town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Cao Jianzhong Address before: 215631 Jin Gang Zhen Zhu Jia Dang Cun, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Zhangjiagang green Samsung Purification Technology Co.,Ltd. |
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