CN203229428U - Heavy metal recovery and zero discharge system - Google Patents

Heavy metal recovery and zero discharge system Download PDF

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Publication number
CN203229428U
CN203229428U CN 201320101944 CN201320101944U CN203229428U CN 203229428 U CN203229428 U CN 203229428U CN 201320101944 CN201320101944 CN 201320101944 CN 201320101944 U CN201320101944 U CN 201320101944U CN 203229428 U CN203229428 U CN 203229428U
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China
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heavy metal
exchange resin
water tank
ion exchange
reverse osmosis
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CN 201320101944
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Chinese (zh)
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陈晓峰
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GUANGDONG ENVITEK ENVIRONMENTAL PROTECTION EQUIPMENT ENGINEERING Co Ltd
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GUANGDONG ENVITEK ENVIRONMENTAL PROTECTION EQUIPMENT ENGINEERING Co Ltd
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Abstract

The utility model discloses a heavy metal recovery and zero discharge system. The heavy metal recovery and zero discharge system comprises a wastewater adjustment pool, and is characterized in that the wastewater adjustment pool is sequentially connected with a first bag-type filter, an active carbon filter, a middle water tank, a second bag-type filter and a reverse osmosis system via pipelines; a permeate liquid outlet of the reverse osmosis system is connected with a water generation tank via the pipeline; a concentrated water outlet of the reverse osmosis system is connected with a concentrated water tank via the pipeline; the concentrated water tank is connected with an ion exchange resin tank; the ion exchange resin tank is connected with a high-concentration heavy metal water tank; ion exchange resin is filled in the ion exchange resin tank; the ion exchange resin tank and the active carbon filter are connected with the wastewater adjustment pool via a wastewater pipeline. With the adoption of the heavy metal recovery and zero discharge system disclosed by the utility model, the heavy metal recovery with a high additional value, water resource recycling and zero discharge for heavy metal wastewater are realized.

Description

One heavy metal species reclaims and Zero discharging system
Technical field
The utility model relates to the electroplating wastewater processing field, and particularly a heavy metal species reclaims and Zero discharging system.
Background technology
Electroplating technology refers to pass through electrolytic action, method at other metal or alloy of metal works surface coverage skim, comprise the plating pre-treatment, plate metal level and processes such as plating aftertreatment etc., common have electro-coppering, nickel, chromium, zinc, copper zinc alloy, a gunmetal etc.In plating production process, because the employee operates problems such as not in place, a large amount of noble metals is along with rinse water run off, resource consumption height so not only, and also seriously polluted, under the lower situation of prevention and cure of pollution level, pollution incident has generation often.Therefore need suitably handle electroplating wastewater, to reach national specified discharge standard.
Traditional electroplating wastewater processing is only handled according to national specified discharge standard, namely methods such as utilization chemistry, electrochemistry change into toxic substance nontoxic or endanger less material or be converted into water-fast compound, utilize inclined-plate clarifying basin to carry out solid-liquid separation then.Though supernatant liquor can discharge by state specified standards, wherein still have micro heavy to exist, be present in the water body with the heavy metal compound state, personnel are by animalcule or plant absorbing, accumulation, and transfer to organism with the food chain mode, involve human body; And discharge water can't reuse without advanced treatment, causes the waste of water resources; Moreover the sludge quantity of handling the back generation is big, is difficult for handling, and causes secondary pollution easily.
Wang Junchuan is that " electroplating wastewater is recycled Processes and apparatus and disclosed a kind of electroplating wastewater in dividing and recycle technology for 200610042556.2 Chinese utility application at application number, comprise: will contain chromium, nickel electroplating wastewater through the electroplating wastewater mixing in other mixings after oxidizing reaction of reduction reaction, organic electroplating waste water, carry out neutralization reaction, coagulating, precipitation successively, obtain supernatant liquor; The gained permeate water is carried out first-stage reverse osmosis processing and two-pass reverse osmosis processing successively, the permeate water that two-pass reverse osmosis is handled can be back to Workshop Production, the dense water of first-stage reverse osmosis and secondary wastewater treatment is neutralization reaction, coagulating, precipitation through the secondary chemical treatment, obtains the supernatant liquor qualified discharge.The electroplating wastewater recycling equipment comprises: electroplating effluent recycling and using system, reverse osmosis recovery system, reverse osmosis concentrated water treatment system and sludge treating system.This technology combines traditional chemical method water treatment and reverse osmosis membrane water treatment and is applied to the recycling of electroplating wastewater, can reclaim 85% filtrate that can reuse from electroplating wastewater.Above-mentioned technology can be from electroplating wastewater the recycle-water resource, but have the heavy metal of higher-value such as nickel etc. and but be transformed into sludge treatment by redox, coagulation, precipitation, so just caused a large amount of wastings of resources, increased the production cost of enterprise, the heavy metal in the mud still exists the potential safety hazard of contaminate environment simultaneously.
Summary of the invention
At the problems referred to above, the purpose of this utility model be to provide a kind of can the efficient recovery electroplating wastewater in heavy metal and water resources, reduce production costs, the heavy metal of conservation of nature environment reclaims and Zero discharging system.
For achieving the above object, the technical scheme that the utility model proposes is: a heavy metal species reclaims and Zero discharging system, comprise wastewater equalization pond, it is characterized in that: described wastewater equalization pond by pipeline successively with first deep bed filter, activated charcoal filter, intermediate water tank, second deep bed filter, reverse osmosis system links to each other, described reverse osmosis system sees through the liquid outlet and links to each other with the product water tank by pipeline, the dense water out of described reverse osmosis system links to each other with dense water tank by pipeline, described dense water tank is connected with an ion exchange resin jar, described ion exchange resin jar is connected with a high density heavy metal water tank, filling male ion-exchange resin in the described ion exchange resin jar, described ion exchange resin jar, activated charcoal filter links to each other with wastewater equalization pond by waste pipe.
Further, pipeline is provided with chemicals dosing plant between described second deep bed filter and reverse osmosis system.
Further, described product water tank links to each other with activated charcoal filter by a backwash pipeline.
Further, described first deep bed filter is preferably the deep bed filter that pore size filter is 10 μ m, and described second deep bed filter is preferably the deep bed filter that pore size filter is 5 μ m.
Adopt the heavy metal of above-mentioned heavy metal recovery and Zero discharging system to reclaim and technique of zero discharge, comprise the steps, be collected in the heavy metal wastewater thereby of wastewater equalization pond, after filtering through first deep bed filter, activated charcoal filter and second deep bed filter successively, enter in the reverse osmosis system, the permeate water of reverse osmosis system is collected in the product water tank, is back to production; After the dense water of described reverse osmosis system carries out ion-exchange through the ion exchange resin jar, produce water and enter the wastewater equalization pond circular treatment by waste pipe, the regenerated liquid of described ion exchange resin jar is collected in high density heavy metal water tank, contains the heavy metal reuse of high density in the described regenerated liquid or further handles the back reuse.
Further, also comprise a step of activated charcoal filter being carried out backwash by the product water that produces in the water tank, the backwash water after the described backwash is back to wastewater equalization pond by waste pipe.
Further, also comprise by chemicals dosing plant and add chemical, the step that reverse osmosis system is cleaned.
Further, described heavy metal wastewater thereby is nickeliferous heavy metal wastewater thereby, cupric heavy metal wastewater thereby etc.
Adopt technique scheme, heavy metal described in the utility model reclaims and the method for Zero discharging system by adopting reverse-osmosis treated and ion-exchange to combine, realized that the heavy metal of high added value reclaims and the water resources reuse in the heavy metal wastewater thereby, it is low, free from environmental pollution to have production cost, has really realized zero release and has reclaimed the advantages such as heavy metal of high added value.
Description of drawings
Fig. 1 is that heavy metal described in the utility model reclaims and the Zero discharging system structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, one heavy metal species reclaims and Zero discharging system, comprise the wastewater equalization pond 1 that links to each other successively by pipeline, first deep bed filter 2, activated charcoal filter 3, intermediate water tank 4, second deep bed filter 5, reverse osmosis system 6 links to each other, reverse osmosis system 6 sees through the liquid outlet and links to each other with product water tank 7 by pipeline, dense water out links to each other with dense water tank 10 by pipeline, described dense water tank 10 is connected with an ion exchange resin jar 11, described ion exchange resin jar 11 is connected with a high density heavy metal water tank 12, be filled with Zeo-karb in the ion exchange resin jar 11, ion exchange resin jar 11 is by first waste pipe 13, activated charcoal filter 3 links to each other with wastewater equalization pond 1 by second waste pipe 14,6 pipelines of second deep bed filter 5 and reverse osmosis system are provided with chemicals dosing plant 8, produce water tank 7 and link to each other with activated charcoal filter 3 by a backwash pipeline 9.
Further, first deep bed filter 2 is preferably the deep bed filter that pore size filter is 10 μ m, and described second deep bed filter 5 is preferably the deep bed filter that pore size filter is 5 μ m.
Adopt the heavy metal of above-mentioned heavy metal recovery and Zero discharging system to reclaim and technique of zero discharge, comprise the steps: to be collected in the heavy metal wastewater thereby of wastewater equalization pond, after filtering through first deep bed filter, activated charcoal filter and second deep bed filter successively, enter in the reverse osmosis system, the permeate water of reverse osmosis system is collected in the product water tank, is back to production; After the dense water of described reverse osmosis system carries out ion-exchange through the ion exchange resin jar, produce water and enter the wastewater equalization pond circular treatment by waste pipe, the regenerated liquid of described ion exchange resin jar is collected in high density heavy metal water tank, and the heavy metal that contains high density in the described regenerated liquid can direct reuse or further processing back reuse.
Further, also comprise a step of activated charcoal filter being carried out backwash by the product water that produces in the water tank, the backwash water after the described backwash is back to wastewater equalization pond by waste pipe.
Further, also comprise by chemicals dosing plant and add chemical, the step that reverse osmosis system is cleaned.
Further, described heavy metal wastewater thereby is nickeliferous heavy metal wastewater thereby, cupric heavy metal wastewater thereby etc.
Embodiment
Present embodiment is example with nickeliferous heavy metal wastewater thereby, adopt the utility model system to handle, by present embodiment as can be known, adopt the utility model system to carry out nickeliferous heavy metal containing wastewater treatment, can make effluent quality well satisfy the requirement of reuse, reach the purpose of heavy metal wastewater thereby zero release and reuse, simultaneously, be collected in regenerated liquid in the high density heavy metal water tank and contain the nickel ion of high density, can directly or after further handling to be back to electroplating work procedure, realize the reuse of high added value heavy metal, reduced enterprise's production cost, reduced environmental pollution.Water quality situation after wherein the water quality situation in the present embodiment wastewater equalization pond and employing system of the present invention and technology are handled is as shown in the table:
Figure BSA00000861723600061
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the present invention is made a variety of changes, be protection domain of the present utility model.

Claims (5)

1. a heavy metal species reclaims and Zero discharging system, comprise wastewater equalization pond, it is characterized in that: described wastewater equalization pond by pipeline successively with first deep bed filter, activated charcoal filter, intermediate water tank, second deep bed filter, reverse osmosis system links to each other, described reverse osmosis system sees through the liquid outlet and links to each other with the product water tank by pipeline, the dense water out of described reverse osmosis system links to each other with dense water tank by pipeline, described dense water tank is connected with an ion exchange resin jar, described ion exchange resin jar is connected with a high density heavy metal water tank, filling male ion-exchange resin in the described ion exchange resin jar, described ion exchange resin jar, activated charcoal filter links to each other with wastewater equalization pond by waste pipe.
2. a heavy metal species according to claim 1 reclaims and Zero discharging system, and it is characterized in that: pipeline is provided with chemicals dosing plant between described second deep bed filter and reverse osmosis system.
3. a heavy metal species according to claim 1 reclaims and Zero discharging system, and described product water tank links to each other with activated charcoal filter by a backwash pipeline.
4. a heavy metal species according to claim 1 reclaims and Zero discharging system, and it is characterized in that: described first deep bed filter is that pore size filter is the deep bed filter of 10 μ m.
5. a heavy metal species according to claim 1 reclaims and Zero discharging system, and it is characterized in that: described second deep bed filter is that pore size filter is the deep bed filter of 5 μ m.
CN 201320101944 2013-03-06 2013-03-06 Heavy metal recovery and zero discharge system Expired - Lifetime CN203229428U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112970A (en) * 2013-03-06 2013-05-22 广东森海环保装备工程有限公司 Heavy metal recovery and zero emission system and process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112970A (en) * 2013-03-06 2013-05-22 广东森海环保装备工程有限公司 Heavy metal recovery and zero emission system and process

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