CN205347054U - Basicity admiro waste water discharge to reach standard treatment facility - Google Patents
Basicity admiro waste water discharge to reach standard treatment facility Download PDFInfo
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- CN205347054U CN205347054U CN201521104374.4U CN201521104374U CN205347054U CN 205347054 U CN205347054 U CN 205347054U CN 201521104374 U CN201521104374 U CN 201521104374U CN 205347054 U CN205347054 U CN 205347054U
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Abstract
The utility model discloses a basicity admiro waste water discharge to reach standard treatment facility, this equipment includes: collecting pit, pH regulator, dosing tank, ozone reactor, electric flocculation reactor, sedimentation tank, mud compressor, the delivery port and the water inlet of pH regulator of collecting pit are connected, and the medicine mouth that adds of pH regulator is connected with the dosing tank, and the delivery port and the water inlet of ozone reactor of pH regulator are connected, and the delivery port of ozone reactor is connected with electric flocculation reaction tank's water inlet, and electric flocculation reaction tank's delivery port and sedimentation tank are connected, and the sludge outlet of sedimentation tank bottom is connected with the mud compressor, and the pressure filtrate (liquid and the collecting pit of mud compressor are connected. The utility model relates to a rationally, it is with low costs, decompose through the organic complex of advanced oxidation means in with alkaline admiro waste water, realize broken twine effect. Recycle electricity flocculation technology zinc, nickel coprecipitation. The process the utility model discloses a treatment of plants, discharge to reach standard can be realized to admiro waste water.
Description
Technical field
This utility model belongs to electroplating industry technical field of waste water processing, is specifically related to a kind of alkaline zinc-nickel alloy discharged wastewater met the national standard and processes equipment.
Background technology
Zn-ni alloy deposits imparts the corrosion resistance that ferrous materials is excellent, has low hydrogen brittleness, good molding and welding performance simultaneously, is subject in recent years paying attention to widely both at home and abroad.Alkaline system admiro plating solution is successfully used to produce by Japan and American-European countries, and is applied to auto industry as optimal generation cadmium coater.
Admiro plating solution can be divided into acid and alkalescence two kinds, and what be currently mainly used is alkaline zinc-nickel alloy plating solution.Nickeliferous 5-10% in plating solution, containing zinc 90-95%, for ensureing the stability of plating solution, it is achieved the deposition velocity that zinc-nickel is stable, plating solution also can add substantial amounts of chelating agent, form stable complex ion with zinc ion and nickel ion.Chelating agent kind is more, mainly comprises tartaric acid and salt thereof and the combination of polyamine compounds, triethanolamine and polyamines, the combination of polyamine compounds, polyphosphinates etc..Owing to zinc, nickel ion exist with stable complex form, the waste water that electroplated zinc nickel alloy technique produces adopts traditional processing method, as added sodium hydroxide, sodium sulfide, common heavy metal chelating agent etc., it tends to be difficult to up to standard.At present, the popularization and application of admiro receive the restriction of Environmental Factors to a great extent, need badly and process process equipment up to standard, stable, low cost.
Summary of the invention
The purpose of this utility model is to provide a kind of alkaline zinc-nickel alloy discharged wastewater met the national standard and processes equipment so that admiro waste water reaches emission request.
The purpose of this utility model is achieved through the following technical solutions:
A kind of alkaline zinc-nickel alloy discharged wastewater met the national standard processes equipment, and this equipment includes: collecting pit, pH-meter, dosing tank, ozone reactor, electricity flocculation reactor, sedimentation tank, mud compressor；The outlet of described collecting pit is connected with the water inlet of pH-meter, the dosing mouth of described pH-meter is connected with dosing tank, the outlet of described pH-meter is connected with the water inlet of ozone reactor, micro-hole aerator it is provided with for blasting ozone in described ozone reactor, the outlet of described ozone reactor is connected with the water inlet of electricity flocculation tank, the outlet of described electric flocculation tank is connected with sedimentation tank, sludge outlet bottom sedimentation tank is connected with mud compressor, and the pressing filtering liquid outlet of described mud compressor is connected with collecting pit.
Preferably, the connecting line of described collecting pit and pH-meter is provided with the first booster pump.
Preferably, the connecting line of described pH-meter and ozone reactor is provided with the second booster pump.
Preferably, the connecting line of described ozone reactor and electricity flocculation tank is provided with the 3rd booster pump.
Preferably, the connecting line of described electric flocculation tank and sedimentation tank is provided with the 4th booster pump.
Preferably, described electric flocculation reactor is provided with pH automatic control system, controls system by pH and maintains pH value 8～11.
Alkaline zinc-nickel alloy discharged wastewater met the national standard is adopted to process the method that equipment processes alkaline zinc-nickel alloy waste water: the alkaline zinc-nickel alloy waste water between pH value 10～12 enters pH-meter from collecting pit through the first booster pump, adds acid by dosing tank and adjusts to 4～8；Through the pH waste water adjusted, enter ozone reaction pond, ozone is blasted by micropore corundum-aerator, continuous aeration 1～3 hour, ozone and waste water is made to be fully contacted, ozone amount is 1.0～2.0 times (volume ratios) of wastewater flow rate, ozone has extremely strong oxidability, its oxidability is 1.52 times of chlorine, and meanwhile, after reaction, residual ozone can resolve into oxygen, so ozone is the oxidant of efficient non-secondary pollution, due to the oxidisability that ozone is extremely strong, it is possible to the organic complexing agent in waste water is carried out chain rupture, decomposition so that zinc, nickel ion can discharge；Through the waste water of ozone Oxidation Treatment, entering in electricity flocculation reactor, the response time controls at 20～40min, and pH value controls 8～11；Electricity flocculation reactor adopts soluble anode such as ferrum, aluminum, and after passing to unidirectional current, anode loses electronics, forms metal cation Fe2+、Al3+, with the OH in solution-In conjunction with generating highly active flocculation group, its absorbability is extremely strong, and flocculating effect is better than common flocculant.After electricity flocculates, ferrum that zinc in waste water, nickel ion and anodic solution get off, aluminium ion formation co-precipitation, thus avoiding the need for the trouble of twice adjustment pH；Waste water in electricity flocculation reactor is entered sedimentation tank stand, total nickel < 0.1mg/L, total zinc < 0.5mg/L, it is achieved qualified discharge in supernatant；Mud carries out filter pressing by filter press, obtains moisture content at about 70% filter cake, the unit of fixed-end forces qualification can be entrusted to process, and pressing filtering liquid is back to collecting pit, again enters pH-meter through the first booster pump after mixing with alkaline zinc-nickel alloy waste water.
Preferably, in pH-meter, the pH value of alkaline zinc-nickel alloy waste water is adjusted to 6.
Preferably, in ozone reactor, the aeration time of ozone is 2 hours, and ozone amount is 1.2 times (volume ratios) of wastewater flow rate.
Preferably, the response time in electricity flocculation reactor is 30min, and pH value controls 9.
Compared with prior art, the beneficial effects of the utility model:
This utility model process equipment is reasonable in design, and cost is low, is decomposed by the organic complex in alkaline zinc-nickel alloy waste water by advanced advanced oxidation means (AOPs), it is achieved contact break effect.Recycling electric flocculation technique, it is achieved zinc, nickel heavy metal co-precipitation, and waste water do not need twice adjustment pH value.Processing through equipment of the present utility model, admiro waste water can reach " plating pollutant emission standard " table 3, it may be assumed that total nickel < the 0.1mg/L, < requirement of 0.5mg/L of total zinc.
Accompanying drawing explanation
Fig. 1 is the structural representation that this utility model alkaline zinc-nickel alloy discharged wastewater met the national standard processes equipment.
In Fig. 1,1-collecting pit, 2-pH actuator, 3-ozone reactor, 4-electricity flocculation reactor, 5-sedimentation tank, 6-mud compressor, 7-dosing tank, 8-the first booster pump, 9-the second booster pump, 10-the 3rd booster pump, 11-the 4th booster pump.
Detailed description of the invention
Below by detailed description of the invention, the technical solution of the utility model is described further.
As it is shown in figure 1, a kind of alkaline zinc-nickel alloy discharged wastewater met the national standard processes equipment, this equipment includes: collecting pit 1, pH-meter 2, dosing tank 7, ozone reactor 3, electricity flocculation reactor 4, sedimentation tank 5, mud compressor 6；The outlet of described collecting pit 1 is connected with the water inlet of pH-meter 2, is provided with the first booster pump 8 on the connecting line of described collecting pit 1 and pH-meter 2；The dosing mouth of described pH-meter 2 is connected with dosing tank 7, and the outlet of described pH-meter 2 is connected with the water inlet of ozone reactor 3, is provided with the second booster pump 9 on the connecting line of described pH-meter 2 and ozone reactor 3；Micro-hole aerator it is provided with for blasting ozone in described ozone reactor 3, the outlet of described ozone reactor 3 is connected with the water inlet of electricity flocculation tank 4, described electric flocculation reactor is provided with pH automatic control system, controls system by pH and maintains pH value 8～11；The connecting line of described ozone reactor 3 and electricity flocculation tank 4 is provided with the 3rd booster pump 10；The outlet of described electric flocculation tank 4 is connected with sedimentation tank 5, and the sludge outlet bottom sedimentation tank 5 is connected with mud compressor 6 through the 4th booster pump 11, and the pressing filtering liquid outlet of described mud compressor 6 is connected with collecting pit 1.
Embodiment 1
Certain Zinc-nickel alloy electroplating line waste discharge, Zn content is 78mg/L, and nickel content is 15mg/L, takes 1L waste water, adopts present treatment equipment implementation process:
(1), pH adjusts: adding sulphuric acid in alkaline zinc-nickel alloy waste water, regulating pH value is 7；
(2), ozone oxidation: passing in ozone reactor through the pH waste water adjusted, blast ozone by micro porous aeration head, the response time is 1 hour, and ozone flow is 1.5L/ hour；
(3) electricity flocculation: the waste water after ozone oxidation is transferred in electricity flocculation reactor, energising reaction 30min, maintain pH value 9 by pH automatic control system.
(4) sludge treatment: waste water enters in sedimentation tank and stands, the supernatant measures zinc, nickel content, and lower floor's mud carries out sucking filtration, records filter cake moisture content 72%, pressing filtering liquid is back to collecting pit, again enters pH-meter through the first booster pump after mixing with alkaline zinc-nickel alloy waste water.
Waste water after above-mentioned PROCESS FOR TREATMENT, total Zn content is 0.10mg/L, and total nickel content is 0.02mg/L, reaches " plating pollutant emission standard " table 3 standard.
Take other alkaline zinc-nickel alloy waste water, adopt this utility model device to process, all reach " plating pollutant emission standard " table 3 standard.Operating process parameter and result such as following table.
Table 1 adopts this utility model to process operating process parameter and the result of alkaline zinc-nickel alloy waste water
Claims (6)
1. an alkaline zinc-nickel alloy discharged wastewater met the national standard processes equipment, it is characterised in that this equipment includes: collecting pit, pH-meter, dosing tank, ozone reactor, electricity flocculation reactor, sedimentation tank, mud compressor；The outlet of described collecting pit is connected with the water inlet of pH-meter, the dosing mouth of described pH-meter is connected with dosing tank, the outlet of described pH-meter is connected with the water inlet of ozone reactor, micro-hole aerator it is provided with for blasting ozone in described ozone reactor, the outlet of described ozone reactor is connected with the water inlet of electricity flocculation tank, the outlet of described electric flocculation tank is connected with sedimentation tank, sludge outlet bottom sedimentation tank is connected with mud compressor, and the pressing filtering liquid outlet of described mud compressor is connected with collecting pit.
2. alkaline zinc-nickel alloy discharged wastewater met the national standard according to claim 1 processes equipment, it is characterised in that be provided with the first booster pump on the connecting line of described collecting pit and pH-meter.
3. alkaline zinc-nickel alloy discharged wastewater met the national standard according to claim 1 processes equipment, it is characterised in that be provided with the second booster pump on the connecting line of described pH-meter and ozone reactor.
4. alkaline zinc-nickel alloy discharged wastewater met the national standard according to claim 1 processes equipment, it is characterised in that be provided with the 3rd booster pump on the connecting line of described ozone reactor and electricity flocculation tank.
5. alkaline zinc-nickel alloy discharged wastewater met the national standard according to claim 1 processes equipment, it is characterised in that be provided with the 4th booster pump on the connecting line of described electric flocculation tank and sedimentation tank.
6. alkaline zinc-nickel alloy discharged wastewater met the national standard according to claim 1 processes equipment, it is characterised in that described electric flocculation reactor is provided with pH automatic control system.
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| CN201521104374.4U CN205347054U (en) | 2015-12-28 | 2015-12-28 | Basicity admiro waste water discharge to reach standard treatment facility |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145538A (en) * | 2016-08-12 | 2016-11-23 | 常州广宇蓝天表面技术科技发展有限公司 | A kind of admiro waste water treatment process |
| CN108249613A (en) * | 2016-12-29 | 2018-07-06 | 南京源泉环保科技股份有限公司 | A kind of alkaline zinc-nickel alloy wastewater treatment method |
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- 2015-12-28 CN CN201521104374.4U patent/CN205347054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145538A (en) * | 2016-08-12 | 2016-11-23 | 常州广宇蓝天表面技术科技发展有限公司 | A kind of admiro waste water treatment process |
| CN108249613A (en) * | 2016-12-29 | 2018-07-06 | 南京源泉环保科技股份有限公司 | A kind of alkaline zinc-nickel alloy wastewater treatment method |
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Basicity admiro waste water discharge to reach standard treatment facility Effective date of registration: 20170922 Granted publication date: 20160629 Pledgee: Bank of Nanjing, Zhujiang branch, Limited by Share Ltd Pledgor: Nanjing Spring Environmental Science & Technology Co., Ltd. Registration number: 2017990000898 |