CN106745943A - A kind of process for processing electroplating comprehensive waste water - Google Patents
A kind of process for processing electroplating comprehensive waste water Download PDFInfo
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- CN106745943A CN106745943A CN201510822012.7A CN201510822012A CN106745943A CN 106745943 A CN106745943 A CN 106745943A CN 201510822012 A CN201510822012 A CN 201510822012A CN 106745943 A CN106745943 A CN 106745943A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/547—Tensides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of process for processing electroplating comprehensive waste water, it is related to electroplating sewerage process field；The method is comprised the following steps：A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, oil removing and by that after sedimentation basin natural sedimentation a few houres, can remove some big suspensions and other impurities；A small amount of sludge being drawn into sludge-tank by sludge pump produced in sedimentation basin, after being processed in the sludge-tank, supernatant is entered comprehensive wastewater pond again and is processed again；B, the supernatant of sedimentation basin enter flocks reaction tank with pumped；C, in flocks reaction tank put into coagulant carry out reaction -120 minutes 30 minutes；D, being drawn into sludge-tank by sludge pump by the sludge of the generation in flocks reaction tank, supernatant discharge, can be back to use electroplating workshop.The all waste water of process that the present invention is provided disposably pass through, and technological process is simple, is easy to operative and industrialized production.
Description
Technical field
The present invention relates to electroplating sewerage process field；More particularly to a kind of process for processing electroplating comprehensive waste water.
Background technology
Electroplating technology is widely used in the industries such as machine manufacture, light industry, electronics, and the composition of electroplating wastewater is extremely complex, except containing cyanogen（CN-）Outside waste water and acidic and alkaline waste water, heavy metal wastewater thereby is the great waste water classification of Electroplating Operations potential hazard, also the toxic organic matter such as benzene class, nitro, amido class, the biological existence of serious harm.Electroplating technology is the indispensable part of modernization industry, the trend not replaced by other versatilities, but while constantly developing new technology, new technology, the preventing and treating of plating pollution is devoted to emphatically.The improvement of electroplating wastewater is at home and abroad generally taken seriously, and develops various Treatment process, by by it is poisonous administer for it is nontoxic, harmful be converted into it is harmless, reclaim precious metal, water circulation and the measure such as use to eliminate and reduce the discharge capacity of heavy metal；With the increasingly raising of the fast-developing and environmental requirement of electroplating industry, at present, oneself initially enters process for cleanly preparing, overall control and recycling economy conformity stage to Electroplating Wastewater Treatment, and resource recycling and closed cycle are the main flow directions of development, and traditional is that waste electroplating processing method has：Chemical method, ion-exchange, electrolysis etc., but conventional process electroplating wastewater there are the following problems：
High cost --- water cannot be recycled, and water rate accounts for the 15%~20% of total cost of production with sewage disposal expense.
The wasting of resources --- precious metal is discharged into water body, it is impossible to recycled.
Environmental pollution --- the heavy metal in electroplating wastewater is " eternal contact scar thing ", is shifted in biological chain and accumulated, and finally endangers human health.
The method of industrial conventional treatment electroplating sewerage has chemical method, electrolysis and membrane processing method at present.The processing cost of chemical method is higher, less economical；Electrolysis high energy consumption, consumption of electrode are fast, cause operating cost high；Film process rule is because technical difficulty is high, process film high cost, be difficult to regeneration and the reason such as reclaiming and hindering its extensive use.
The content of the invention
The present invention for overcome the shortcomings of in the prior art treatment electroplating wastewater high cost and environmental pollution and provide it is a kind of process electroplating comprehensive waste water process, the method processing speed is fast, effect is good, with low cost, resource recycling and reduction environmental pollution the characteristics of.
Present disclosure includes：
A kind of process for processing electroplating comprehensive waste water, the method is at least comprised the following steps：
A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, oil removing and by that after sedimentation basin natural sedimentation a few houres, can remove some big suspensions and other impurities；A small amount of sludge being drawn into sludge-tank by sludge pump produced in sedimentation basin, after being processed in the sludge-tank, supernatant is entered comprehensive wastewater pond again and is processed again；
B, the supernatant of sedimentation basin enter flocks reaction tank with pumped；
C, in flocks reaction tank put into coagulant carry out reaction -120 minutes 30 minutes；
D, being drawn into sludge-tank by sludge pump by the sludge of the generation in flocks reaction tank, supernatant discharge, water outlet can reach national newest discharge standard, can be back to use electroplating workshop.
E, the heavy metal in sludge-tank is processed into recovery respectively.
The process of above-mentioned treatment electroplating comprehensive waste water, the wherein coagulant described in step c is made up of the raw material of following weight：Alum 10-15kg, polymer aluminium silicate 5-10kg, sodium lignin sulfonate 3-8kg, nano zine oxide 5-8kg, sodium hypochlorite 2-5kg, phenolic resin 5-10kg, sodium sulfite 1-4kg, concentrated sulfuric acid 0.5-3kg, kaolin 1-4kg, ferrous ammonium 0.8-2kg, calcium oxide 4-7kg, Firebrake ZB 3-5kg, paraffin 1-3kg, potassium chlorate 3-6kg, peracetic acid 1.5-2.5kg, sodium pyrosulfite 5-8kg, iron powder 8-12kg.
The process of above-mentioned treatment electroplating comprehensive waste water, wherein the particle diameter of the nano zine oxide is 50-100nm.
The process of above-mentioned treatment electroplating comprehensive waste water, wherein it is described the step of d in, tetra- steps of a, b, c, d are circulated in supernatant discharge process again, be then exhausted from.
The process of above-mentioned treatment electroplating comprehensive waste water, wherein it is described the step of b in sedimentation basin supernatant pumped into being provided with separator for mud and water during flocks reaction tank.
The beneficial effects of the invention are as follows the process that the present invention is provided can be without pretreatment and separating treatment, directly the waste water mixed processing of all electroplating workshops；Secondly without adjusting pH value stage by stage；All waste water disposably pass through, and technological process is simple, is easy to operative and industrialized production；And heavy metal and water resource can be reclaimed from electroplating wastewater, mitigate or prevent pollution of the waste water to environment, realize that the electroplating wastewaters such as the clean manufacturing of plating, gold, silver, nickel, the copper higher to added value can be recycled with resin adsorption, and produce good economic benefit.The present invention utilizes the synergy Combined Treatment electroplating sewerage of various materialization reagents, and processing speed is fast, can efficiently remove the suspension in sewage, drop turbid, decolouring, limpid water quality, effectively removes COD, the BOD and heavy metal ion in sewage.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, with reference to specific embodiment, the present invention is expanded on further.
Embodiment 1
The coagulant is made up of the raw material of following mass fraction：Alum 10kg, polymer aluminium silicate 5kg, sodium lignin sulfonate 3kg, nano zine oxide 5kg, sodium hypochlorite 2kg, phenolic resin 5kg, sodium sulfite 1kg, concentrated sulfuric acid 0.5kg, kaolin 1kg, ferrous ammonium 0.8kg, calcium oxide 4kg, Firebrake ZB 3kg, paraffin 1kg, potassium chlorate 3kg, peracetic acid 1.5kg, sodium pyrosulfite 5kg, iron powder 8kg, the wherein particle diameter of nano zine oxide are 50-100nm.
Embodiment 2
The coagulant is made up of the raw material of following mass fraction：Alum 12kg, polymer aluminium silicate 8kg, sodium lignin sulfonate 5kg, nano zine oxide 6kg, sodium hypochlorite 4kg, phenolic resin 8kg, sodium sulfite 2kg, concentrated sulfuric acid 2kg, kaolin 2kg, ferrous ammonium 1kg, calcium oxide 6kg, Firebrake ZB 4kg, paraffin 2kg, potassium chlorate 5kg, peracetic acid 2kg, sodium pyrosulfite 6kg, iron powder 10kg, the wherein particle diameter of nano zine oxide are 50-100nm.
Embodiment 3
The coagulant is made up of the raw material of following mass fraction：Alum 15kg, polymer aluminium silicate 10kg, sodium lignin sulfonate 8kg, nano zine oxide 8kg, sodium hypochlorite 5kg, phenolic resin 10kg, sodium sulfite 4kg, concentrated sulfuric acid 3kg, kaolin 4kg, ferrous ammonium 2kg, calcium oxide 7kg, Firebrake ZB 5kg, paraffin 3kg, potassium chlorate 6kg, peracetic acid 2.5kg, sodium pyrosulfite 8kg, iron powder 12kg, the wherein particle diameter of nano zine oxide are 50-100nm.
Coagulant described in embodiment 1-3 is processed a certain Electroplate Factory's sewage in accordance with the following steps：
Electroplating workshop comprehensive wastewater is directly discharged to comprehensive wastewater pond, then by grease removal tank and sedimentation basin, a small amount of sludge being drawn into the sludge-tank of next step by sludge pump produced in sedimentation basin, the supernatant of sedimentation basin enters flocks reaction tank with pumped, putting into embodiment 1-3 kinds coagulant respectively in flocks reaction tank carries out reaction -120 minutes 30 minutes, by the sludge of the generation in flocks reaction tank being drawn into sludge-tank by sludge pump, supernatant is discharged, water outlet can reach national newest discharge standard, be shown in Table 1.
The water quality index of water inlet and water outlet when the embodiment 1-3 of table 1 is implemented
As can be seen from Table 1, electroplating sewerage is processed using the coagulant in embodiment 1-3 with the present invention, can effectively removes SS, the COD and various heavy metal ion in sewage.Furthermore it is possible to it was observed that the suspension in sewage is efficiently removed, turbidity is substantially reduced, water quality becomes clear.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.It should be understood by those skilled in the art that; the present invention is not limited to the above embodiments; merely illustrating the principles of the invention described in above-described embodiment and specification; without departing from the spirit and scope of the present invention; various changes and modifications of the present invention are possible, and these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (5)
1. it is a kind of process electroplating comprehensive waste water process, it is characterised in that：The method is at least comprised the following steps：
A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, oil removing and by that after sedimentation basin natural sedimentation a few houres, can remove some big suspensions and other impurities；A small amount of sludge being drawn into sludge-tank by sludge pump produced in sedimentation basin, after being processed in the sludge-tank, supernatant is entered comprehensive wastewater pond again and is processed again；
B, the supernatant of sedimentation basin enter flocks reaction tank with pumped；
C, in flocks reaction tank put into coagulant carry out reaction -120 minutes 30 minutes；
D, being drawn into sludge-tank by sludge pump by the sludge of the generation in flocks reaction tank, supernatant discharge, water outlet can reach national newest discharge standard, can be back to use electroplating workshop；
E, the heavy metal in sludge-tank is processed into recovery respectively.
2. the process of electroplating comprehensive waste water is processed as described in claim 1, it is characterised in that the coagulant described in step c is made up of the raw material of following weight：Alum 10-15kg, polymer aluminium silicate 5-10kg, sodium lignin sulfonate 3-8kg, nano zine oxide 5-8kg, sodium hypochlorite 2-5kg, phenolic resin 5-10kg, sodium sulfite 1-4kg, concentrated sulfuric acid 0.5-3kg, kaolin 1-4kg, ferrous ammonium 0.8-2kg, calcium oxide 4-7kg, Firebrake ZB 3-5kg, paraffin 1-3kg, potassium chlorate 3-6kg, peracetic acid 1.5-2.5kg, sodium pyrosulfite 5-8kg, iron powder 8-12kg.
3. the process of electroplating comprehensive waste water is processed as described in claim 2, it is characterised in that the particle diameter of the nano zine oxide is 50-100nm.
4. the process of electroplating comprehensive waste water is processed as described in claim 1, it is characterised in that is circulated tetra- steps of a, b, c, d in described step d, in supernatant discharge process again, is then exhausted from.
5. the process for the treatment of electroplating comprehensive waste water as described in claim 1, it is characterised in that the supernatant pumped of sedimentation basin is into being provided with separator for mud and water during flocks reaction tank in described step b.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822012.7A CN106745943A (en) | 2015-11-24 | 2015-11-24 | A kind of process for processing electroplating comprehensive waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510822012.7A CN106745943A (en) | 2015-11-24 | 2015-11-24 | A kind of process for processing electroplating comprehensive waste water |
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| CN106745943A true CN106745943A (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467263A (en) * | 2018-10-29 | 2019-03-15 | 深圳骏泽环保有限公司 | The basic copper carbonate preparation process that board wastewater efficiently utilizes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070168A (en) * | 1992-09-02 | 1993-03-24 | 杨蔺孝 | Heavy metal wastewater treatment and reuse method and device |
| WO2002004359A1 (en) * | 2000-07-07 | 2002-01-17 | Microbar, Inc. | Method of treating industrial waste waters |
| CN102050536A (en) * | 2010-12-03 | 2011-05-11 | 东莞市可迪环保科技有限公司 | Process for treating electroplating wastewater |
| CN103951108A (en) * | 2014-04-25 | 2014-07-30 | 深圳市天净环境科技发展有限公司 | Process method for treating electroplating comprehensive wastewater |
| CN104140151A (en) * | 2014-07-21 | 2014-11-12 | 安徽三环水泵有限责任公司 | One-level physical and chemical intensified processing coagulant for electroplate waste water |
-
2015
- 2015-11-24 CN CN201510822012.7A patent/CN106745943A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070168A (en) * | 1992-09-02 | 1993-03-24 | 杨蔺孝 | Heavy metal wastewater treatment and reuse method and device |
| WO2002004359A1 (en) * | 2000-07-07 | 2002-01-17 | Microbar, Inc. | Method of treating industrial waste waters |
| CN102050536A (en) * | 2010-12-03 | 2011-05-11 | 东莞市可迪环保科技有限公司 | Process for treating electroplating wastewater |
| CN103951108A (en) * | 2014-04-25 | 2014-07-30 | 深圳市天净环境科技发展有限公司 | Process method for treating electroplating comprehensive wastewater |
| CN104140151A (en) * | 2014-07-21 | 2014-11-12 | 安徽三环水泵有限责任公司 | One-level physical and chemical intensified processing coagulant for electroplate waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467263A (en) * | 2018-10-29 | 2019-03-15 | 深圳骏泽环保有限公司 | The basic copper carbonate preparation process that board wastewater efficiently utilizes |
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