CN204999744U - Nickeliferous waste water accords with three emission standard's in water pollution thing table processing system - Google Patents
Nickeliferous waste water accords with three emission standard's in water pollution thing table processing system Download PDFInfo
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- CN204999744U CN204999744U CN201520695643.2U CN201520695643U CN204999744U CN 204999744 U CN204999744 U CN 204999744U CN 201520695643 U CN201520695643 U CN 201520695643U CN 204999744 U CN204999744 U CN 204999744U
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Abstract
The utility model discloses a nickeliferous waste water accords with three emission standard's in water pollution thing table processing system. Nickel waste water catch basin is used for the initial nickeliferous waste water of collecting, and nickel reaction tank input port communicates with each other with nickel waste water catch basin, acid or alkali medicine system, heavy metal trapping agent medicine system, coagulant aid medicine system and flocculating agent medicine system respectively, and sludge tihckener and middle pond are connected respectively to nickel reaction tank delivery outlet, and the sulphuric acid medicine system feeds through middle pond, and middle pond gets into discharging pool in proper order behind filter, heavy metal sweeper. The utility model provides an electroplating the current nickeliferous waste water of trade and can not satisfying " the special limit value of water pollution thing " three emission standard's in the table a difficult problem, that realizes electroplating nickeliferous waste water stabilizes the discharge to reach standard requirement.
Description
Technical field
The utility model belongs to sewage treatment area, and specifically a kind of nickel-containing waste water meets the treatment system of water pollutant table three emission standard, and what meet is " the special limit value of water pollutant " table three emission standard, can be used for the process of electroplating industry nickel-containing waste water.
Background technology
Plating uses chromium, zinc, nickel, cadmium, copper etc. at the plated surface layer of metal protective layer of workpiece, strengthens erosion resistance and the aesthetic property of metal or plastics.Electroplating wastewater is mainly derived from plating piece pre-treatment waste water, coating rinse water, coating aftertreatment waste water and electroplating effluent.
Heavy metal ion belongs to carcinogenic, teratogenesis or mutagenic highly toxic substance, if a large amount of electroplating wastewater processing containing heavy metal ion is bad, can by food chain, enrichment in human body and cause serious health problem, so electroplating wastewater is one of industry of current environmental protection emphasis regulation.
The electroplating wastewater processing of Most current area electroplating enterprise or garden is: except chromium plating wastewater shunts process separately, other process as nickel plating, copper facing, galvanized liquid waste and pre-treatment water etc. are mixed together together with water collecting basin, and nickel ion is difficult to the emission standard of meet the requirement of environmental protection.Some area is according to the requirement of environmental protection, electroplating wastewater is shunted, adopt the art breading of " taking their own roads; respectively enter its pond; sub-prime is disposed ", but nickel-containing waste water, due to containing chemical additives such as brightening agents, has just met the requirement of " the special limit value of water pollutant " table two emission standard of environmental protection, has not reached the requirement of the special emission limit of table three water pollutant.
Utility model content
In order to solve Problems existing in background technology, the purpose of this utility model is to provide a kind of nickel-containing waste water to meet the treatment system of water pollutant table three emission standard, adopt the neutralization precipitation in chemical method, chemical precipitation, utilize filter to filter and ensure effluent quality, utilize heavy metal swabbing pig thoroughly to remove nickel ion, thus realize nickel-containing waste water process and meet table three limit value emission standard.
Solution of the present utility model is by the following technical solutions:
As shown in Figure 1, nickel waste water water collecting basin, nickel reactant pond, acid or alkali medicine system, heavy metal chelating agent medicine system, coagulant aids medicine system, flocculation agent medicine system, sludge thickener, intermediate pool, sulfuric acid medicine system, filter, heavy metal swabbing pig and discharge pond is comprised; Nickel waste water water collecting basin is used for initial collection nickel-containing waste water, input aperture, nickel reactant pond communicates with nickel waste water water collecting basin, acid or alkali medicine system, heavy metal chelating agent medicine system, coagulant aids medicine system and flocculation agent medicine system respectively, nickel reactant pond delivery port connects sludge thickener and intermediate pool respectively, sulfuric acid medicine system is communicated to intermediate pool, and intermediate pool enters discharge pond successively after filter, heavy metal swabbing pig.
The pickling agent that described heavy metal swabbing pig uses is the chelate resin of sulfur-bearing.
Described heavy metal swabbing pig delivery port returns links intermediate pool.
Mechanism of the present utility model is the neutralization precipitation first adopted in chemical method, chemical precipitation, recycling filter filters and ensures effluent quality, then utilize heavy metal swabbing pig thoroughly to remove nickel ion, thus realize nickel-containing waste water process and meet table three limit value emission standard.
Compared with the prior art the utility model has the following advantages:
(1) the utility model adopts the pre-treatment of nickel reactant pond, and use sulfur-bearing Ao mixture as heavy metal chelating agent, supernatants after precipitation water outlet can reach the requirement of environmental protection " the special limit value of water pollutant " table two emission standard, simple to operation.
(2) quartz sand that need not be traditional, charcoal absorption, but impurity such as removing in waste water the fine particle failing to remove completely is filtered with filter, eliminate the back flushing of quartz sand, gac, simple and convenient.
(3) use sulfur-bearing Ao resin inside heavy metal swabbing pig, thoroughly can adsorb bivalent nickel ion, make water outlet meet table three limit value emission standard completely.
(4) waste water in the utility model after heavy metal chelating agent process, nickel ion concentration is very low, add that the sulfur-bearing Ao resin in heavy metal swabbing pig has very large loading capacity to nickel ion, make heavy metal swabbing pig can life-time service (more than a year), need not frequently sulfur-bearing Ao resin be regenerated or be changed, make actual use become simple and convenient.
(5) water outlet in the utility model after the process of heavy metal swabbing pig can reach the requirement of environmental protection " the special limit value of water pollutant " table three emission standard, can directly discharge.
In a word, the utility model solves the difficult problem that the existing nickel-containing waste water of electroplating industry can not meet table three emission standard, achieves the stably reaching standard emission request of Ni-containing Plating Wastewater, easy and simple to handle, economically feasible.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model treatment system.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
The treating processes of the utility model system is as follows:
(1) according to the requirement of environmental protection, electroplating wastewater is shunted, adopt and " take their own roads, respectively enter its pond, sub-prime dispose " art breading, nickel-containing waste water (such as the nickel-plating waste water of Electroplate Factory or plating garden) is entered nickel waste water water collecting basin, pump into nickel reactant pond by water pump and carry out pre-treatment: first detect the pH value of nickel waste water water collecting basin nickel-containing waste water and regulate, then in nickel reactant pond, heavy metal chelating agent is added, coagulant aids and flocculation agent is added again after abundant mix and blend reaction, carry out quiescent setting after stirring or enter solid-liquid separating equipment,
(2) water getting the supernatant liquor after precipitation or solid-liquid separation enters intermediate pool, utilizes automatic medicament feeding system to add sulphuric acid soln, regulates waste water pH value; Be conducive to the water outlet of follow-up heavy metal swabbing pig like this and directly can meet the discharge of table three limit value emission standard;
(3) intermediate pool water filter pumps into heavy metal swabbing pig, the pickling agent that heavy metal swabbing pig uses is the chelate resin of sulfur-bearing, after the process of heavy metal swabbing pig, reach table 3 limit value emission standard, namely discharge water and detect the emission standard meeting <0.1mg/L containing nickel concentration.
Filter can remove the impurity such as the fine particle failing when precipitating in waste water to remove completely, after process above, the nickel concentration entering heavy metal swabbing pig has been minor levels, the pickling agent that heavy metal swabbing pig uses is the chelate resin of sulfur-bearing, so the life cycle of heavy metal swabbing pig more than 1 year, can meet demand of industrial production completely.
Detect containing nickel concentration >0.1mg/L if described heavy metal swabbing pig finally discharges water, then get back to intermediate pool repeating step (2) further and (3) process, and the resin in heavy metal swabbing pig is carried out regenerating or changing.
The principle of work of the utility model system is as follows:
First adopt neutralisation, electroplating effluent recycling and to reduce the nickel ion concentration in nickel-containing waste water, reduce the load of subsequent processes, for the long-time running of heavy metal swabbing pig creates conditions.According to the solubility product of nickel hydroxide, adopt neutralisation, supernatant liquor pH value >=9.25 precipitated in theory, nickel ion concentration just can reach table three limit value emission standard (nickel ion concentration≤0.1mg/L).But in fact because with the addition of many organic solvents in electroplate liquid, these organic solvents can form the forms such as complexing to nickel, have a strong impact on the precipitation of nickel ion, even if so regulate pH value >=9.25, as pH value all can not make nickel ion concentration reach table three limit value emission standard to 11.Even if existing technique adopts the sulfide that solubility product is less, sedimentation effect can be improved, the further nickel ion concentration (can reach table two limit value emission standard and nickel ion concentration at about 0.2mg/L) reduced in precipitation supernatant liquor, but nickel ion concentration can not be made to reach table three limit value emission standard.
The molecule removed failed when removing precipitate and separate further by recycling filter, and prevent these molecules from adsorbing and be trapped in swabbing pig, the water stream channel of blocking pickling agent, affects result of use and the flow velocity of pickling agent.The technique of prior art adopts quartz sand usually, gac carrys out Filtration Adsorption molecule, but after absorption, water stream channel is blocked, and pressure increase, low water velocities, so will carry out back flushing to quartz sand, activated carbon packed column continually, operates cumbersome.The filter that the utility model adopts both can be used as the lift of water pump lifting water, played filter effect again, and filter filter element cleaning is convenient, and eliminate the back flushing of quartz sand, gac, operation is simple.
Sulfur-bearing Ao resin finally by the filling of heavy metal swabbing pig has very strong exchange capacity of absorption to nickel, absorption exchange capacity is large, thoroughly can remove the micro-nickel ion in nickel-containing waste water, actual test ensures that water outlet reaches containing nickel ion concentration the requirement meeting table three limit value emission standard, and meets the demand of life-time service.
As can be seen here, the utility model solves the difficult problem that the existing nickel-containing waste water of electroplating industry can not meet table three limit value emission standard, achieves the stably reaching standard emission request of Ni-containing Plating Wastewater.
Claims (3)
1. nickel-containing waste water meets a treatment system for water pollutant table three emission standard, it is characterized in that: comprise nickel waste water water collecting basin, nickel reactant pond, acid or alkali medicine system, heavy metal chelating agent medicine system, coagulant aids medicine system, flocculation agent medicine system, sludge thickener, intermediate pool, sulfuric acid medicine system, filter, heavy metal swabbing pig and discharge pond; Nickel waste water water collecting basin is used for initial collection nickel-containing waste water, input aperture, nickel reactant pond communicates with nickel waste water water collecting basin, acid or alkali medicine system, heavy metal chelating agent medicine system, coagulant aids medicine system and flocculation agent medicine system respectively, nickel reactant pond delivery port connects sludge thickener and intermediate pool respectively, sulfuric acid medicine system is communicated to intermediate pool, and intermediate pool enters discharge pond successively after filter, heavy metal swabbing pig.
2. a kind of nickel-containing waste water according to claim 1 meets the treatment system of water pollutant table three emission standard, it is characterized in that: the pickling agent that described heavy metal swabbing pig uses is the chelate resin of sulfur-bearing.
3. a kind of nickel-containing waste water according to claim 1 meets the treatment system of water pollutant table three emission standard, it is characterized in that: described heavy metal swabbing pig delivery port returns links intermediate pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695643.2U CN204999744U (en) | 2015-09-09 | 2015-09-09 | Nickeliferous waste water accords with three emission standard's in water pollution thing table processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520695643.2U CN204999744U (en) | 2015-09-09 | 2015-09-09 | Nickeliferous waste water accords with three emission standard's in water pollution thing table processing system |
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| CN204999744U true CN204999744U (en) | 2016-01-27 |
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| CN201520695643.2U Expired - Fee Related CN204999744U (en) | 2015-09-09 | 2015-09-09 | Nickeliferous waste water accords with three emission standard's in water pollution thing table processing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084603A (en) * | 2015-09-09 | 2015-11-25 | 杭州太一科技有限公司 | Treatment method and system of nickel-containing wastewater conforming to Water Pollutant Table III Discharge Standard |
| CN109064109A (en) * | 2018-06-07 | 2018-12-21 | 宋昭生 | The method of quick audit and examination of law enforcement based on new edition pollutant discharging license |
| CN111153524A (en) * | 2020-01-08 | 2020-05-15 | 中国科学院长春应用化学研究所 | Method for treating alkaline zinc-nickel alloy electroplating wastewater |
-
2015
- 2015-09-09 CN CN201520695643.2U patent/CN204999744U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084603A (en) * | 2015-09-09 | 2015-11-25 | 杭州太一科技有限公司 | Treatment method and system of nickel-containing wastewater conforming to Water Pollutant Table III Discharge Standard |
| CN109064109A (en) * | 2018-06-07 | 2018-12-21 | 宋昭生 | The method of quick audit and examination of law enforcement based on new edition pollutant discharging license |
| CN109064109B (en) * | 2018-06-07 | 2021-11-23 | 宋昭生 | Method for quick auditing and environment-friendly inspection based on new pollution discharge license |
| CN111153524A (en) * | 2020-01-08 | 2020-05-15 | 中国科学院长春应用化学研究所 | Method for treating alkaline zinc-nickel alloy electroplating wastewater |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20200909 |