CN105920964B - A kind of electroplating industry waste gas Waste Water Treatment - Google Patents

A kind of electroplating industry waste gas Waste Water Treatment Download PDF

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Publication number
CN105920964B
CN105920964B CN201610448472.2A CN201610448472A CN105920964B CN 105920964 B CN105920964 B CN 105920964B CN 201610448472 A CN201610448472 A CN 201610448472A CN 105920964 B CN105920964 B CN 105920964B
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CN
China
Prior art keywords
waste gas
water
waste water
waste
exhaust
Prior art date
Application number
CN201610448472.2A
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Chinese (zh)
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CN105920964A (en
Inventor
王国保
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太仓市顺邦防腐设备有限公司
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Priority to CN201610448472.2A priority Critical patent/CN105920964B/en
Publication of CN105920964A publication Critical patent/CN105920964A/en
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Publication of CN105920964B publication Critical patent/CN105920964B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/006Combinations of devices relating to groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/261Drying gases or vapours by adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/025Other waste gases from metallurgy plants
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/004Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16Nature 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents

Abstract

The invention discloses a kind of electroplating industry waste gas Waste Water Treatment, including:Two parts of exhaust-gas treatment and wastewater treatment, suspended hood is provided with plating workplace upper end, suspended hood is cover body structure, and there is provided suspended hood air outlet slit, and exhaust piping is connected with by suspended hood air outlet slit, valve mechanism is provided with plating workplace lower end, discharge of wastewater pipeline is connected to by valve, the invention enables the exhaust-gas treatment of electroplating industry is complete, meets discharging standards, and the discharge of heavy metal ion meets national standard, improves environmental quality.

Description

A kind of electroplating industry waste gas Waste Water Treatment

Technical field

The present invention relates to field of Environment Protection, more particularly to a kind of electroplating industry waste gas Waste Water Treatment.

Background technology

Electroplating industry is current important processing industry, can change the chemical-physical parameters of workpiece surface, and plating is main The industries such as electronics, machine manufacture, instrument, aviation are concentrated on, workpieces processing is placed in corresponding chemical electrolysis liquid tank so that Workpiece surface forms electrodeposited coating, but electroplating industry is also high consumption, high pollution industry, and sour gas can be produced in electroplating process Body, organic exhaust gas and heavy metal waste gas, if directly discharged, air can be polluted, and many plating of electroplating process weight Plurality of heavy metal industrial wastewater is contained in aqueous wash liquid, the inside, and heavy metal has at a relatively high stability in water body and is difficult to drop Solution, accumulation produce serious harm to fish, shrimps and other water plants to a certain extent.

The scope of the enterprise of existing electroplating industry is small, be all processing and supporting enterprise, it is large number of, to environmental protection it is difficult to It is up to standard, and environmental administration is difficult overall monitor, therefore, the invention provides a kind of electroplating industry waste gas wastewater treatment system System so that waste gas and good waste water treatment effect, floor space is small, and electroplating industry environmental protection environment is improved.

The content of the invention

, can be effective the present invention solves the technical problem of a kind of electroplating industry waste gas Waste Water Treatment is provided Plating waste gas waste water is removed, and waste gas absorption efficiency high, waste liquid heavy metals removal are complete.

A kind of described electroplating industry waste gas Waste Water Treatment, including:Two compositions of exhaust-gas treatment and wastewater treatment Part, suspended hood is provided with plating workplace upper end, suspended hood is cover body structure, there is provided suspended hood air outlet slit, is passed through Suspended hood air outlet slit is connected with exhaust piping, is provided with valve mechanism in plating workplace lower end, is connected to by valve useless Water discharge spout road.

By suspended hood air outlet slit, waste gas enters filter, and big solid particle polluter is removed, useless after removal Gas enters heat exchanger by pipeline, and heat exchanger lower end is understructure, and heat exchanger includes housing and internal cavities, internally cavity Interior to be provided with flow distribution plate, heat exchanger uses Horizontal Cylinder structure, on heat exchangers there is provided exhaust gas inlet, waste gas outlet, and And connection is provided with two cooling water circulation mouths, cooling water circulation mouth is used to cool to waste gas, and waste gas is logical from waste gas outlet discharge Piping enters scrubbing tower.

Scrubbing tower uses vertical structure of column scrubber, and scrubbing tower is spraying layer, packing layer and bottom water tank successively from top to bottom, Pall ring filler is provided with packing layer, packing layer and water tank are separated by dividing plate, and are set at the top of described packing layer Mouth spray is put, mouth spray is connected with shower, and the spray tube portion inside scrubbing tower is provided with spray head, outside scrubbing tower The shower lower end in portion is connected with suction pump, turns into a loop structure by water pump power shower.

Dosing mouth is provided with washing tower side wall simultaneously, for adding the medicine body of adjustment water tank concentration, more conducively waste gas Absorption.

Waste gas outlet is provided with the top of scrubbing tower, waste gas enters Dry Absorber from scrubbing tower outlet, dries absorption Device uses horizontal cylinder structure, and Dry Absorber is divided into two parts of activated carbon adsorption layer and film process unit, a kind of preferred skill Art scheme, in order that the rigidity of Dry Absorber to the further absorption of waste gas, must be improved, in activated carbon adsorption layer and film process Diaphragm structure is provided between unit.

Exhaust chimney is entered by the waste gas of Dry Absorber, exhaust chimney uses column structure, a kind of optimization technique Scheme, is provided with rainhat on described exhaust chimney top, prevents leak from leaking, and polypropylene is provided with exhaust chimney lower end Blower fan, waste gas is discharged from exhaust chimney by the power of polypropylene blower fan.

In order to ensure that waste gas discharges quality, air detection instrument is provided with described exhaust chimney upper end, for the row of detection Go out air quality.

Discharge of wastewater pipeline is connected to pretreatment pool, and fence structure is set on pretreatment pool, and the suspension in waste water is miscellaneous Matter and colloid are first filtered, and by pipeline, waste water enters wastewater collection pond by anticipating pond, is used in wastewater collection pond Photochemical catalyst carries out exterminating bacterium processing.

A kind of optimization technique puts case, is provided with two ultraviolet sterilizers in described wastewater collection pond, sterilizer is selected Wavelength is 254mm, kills the bacterium in waste water.

Waste water after sterilization, pond being adjusted into PH, NAOH is added in PH adjustment pond, PH is between 9-10 for regulation, Waste water after PH is adjusted, sedimentation basin is entered, and add aluminium chloride, contact break agent and flocculation aid so that in waste water Heavy metal precipitation get off, then into intermediate filtered pond, by the waste water in intermediate filtered pond, enter anaerobic pond, anaerobism Reaction tank uses concrete structure, and most of organic matter in waste water is carried out into anaerobic digestion using anaerobes such as methane backerias, Difficult decompose in sewage is changed into labile dissolved organic matter with non-solubility organic matter simultaneously, given up in anaerobic reation pool Water enters aerobic biochemical pool by pipeline, and aerobic biochemical pool uses concrete structure, the connecting fan in aerobic biochemical pool, together Shi Liyong aerobic microbiologicals decomposing organic matter produces carbon dioxide and water, while cultivates nitrifier with the ammonia nitrogen in Decomposition Wastewater, Nitrate nitrogen is converted into, the waste water of aerobic biochemical pool after charcoal absorption, water softener is entered, aerobic biochemical Water softening in pond, the waste water after softening enter cartridge filter, and by filtering, water quality holding vessel, water quality storage are put into after filtering The water for depositing tank carries out industrial production line recycling.

The beneficial effects of the invention are as follows:The invention enables the exhaust-gas treatment of electroplating industry is complete, meet discharging standards, And the discharge of heavy metal ion meets national standard, improves environmental quality.

Brief description of the drawings

Fig. 1 is a kind of structural representation of electroplating industry waste gas Waste Water Treatment of the present invention;

The mark of each part is as follows in accompanying drawing:

1 is plating workplace, and 101 be suspended hood, and 201 be heat exchanger, and 3 be scrubbing tower, and 301 be shower, and 302 draw water Pump, 303 be packing layer, and 304 be water tank, and 4 be Dry Absorber, and 401 be film process unit, and 402 be activated carbon adsorption layer, and 5 are Polypropylene blower fan, 6 be exhaust chimney, and 7 be filter, and 8 be pretreatment pool, and 9 be wastewater collection pond, and 10 be that PH adjusts pond, and 11 are Sedimentation basin, 12 be intermediate filtered pond, and 13 be anaerobic pond, and 14 be aerobic biochemical pool, and 15 be softening pond, and 16 be cartridge filter.

Embodiment

Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.

Referring to Fig. 1, the embodiment of the present invention includes:

A kind of described electroplating industry waste gas Waste Water Treatment, including:Two compositions of exhaust-gas treatment and wastewater treatment Part, suspended hood is provided with plating workplace upper end, suspended hood is cover body structure, there is provided suspended hood air outlet slit, is passed through Suspended hood air outlet slit is connected with exhaust piping, is provided with valve mechanism in plating workplace lower end, is connected to by valve useless Water discharge spout road.

By suspended hood air outlet slit, waste gas enters filter, and big solid particle polluter is removed, useless after removal Gas enters heat exchanger by pipeline, and heat exchanger lower end is understructure, and heat exchanger includes housing and internal cavities, internally cavity Interior to be provided with flow distribution plate, heat exchanger uses Horizontal Cylinder structure, on heat exchangers there is provided exhaust gas inlet, waste gas outlet, and And connection is provided with two cooling water circulation mouths, cooling water circulation mouth is used to cool to waste gas, and waste gas is logical from waste gas outlet discharge Piping enters scrubbing tower.

Scrubbing tower uses vertical structure of column scrubber, and scrubbing tower is spraying layer, packing layer and bottom water tank successively from top to bottom, Pall ring filler is provided with packing layer, packing layer and water tank are separated by dividing plate, and are set at the top of described packing layer Mouth spray is put, mouth spray is connected with shower, and the spray tube portion inside scrubbing tower is provided with spray head, outside scrubbing tower The shower lower end in portion is connected with suction pump, turns into a loop structure by water pump power shower.

Dosing mouth is provided with washing tower side wall simultaneously, for adding the medicine body of adjustment water tank concentration, more conducively waste gas Absorption.

Waste gas outlet is provided with the top of scrubbing tower, waste gas enters Dry Absorber from scrubbing tower outlet, dries absorption Device uses horizontal cylinder structure, and Dry Absorber is divided into two parts of activated carbon adsorption layer and film process unit, a kind of preferred skill Art scheme, in order that the rigidity of Dry Absorber to the further absorption of waste gas, must be improved, in activated carbon adsorption layer and film process Diaphragm structure is provided between unit.

Exhaust chimney is entered by the waste gas of Dry Absorber, exhaust chimney uses column structure, a kind of optimization technique Scheme, is provided with rainhat on described exhaust chimney top, prevents leak from leaking, and polypropylene is provided with exhaust chimney lower end Blower fan, waste gas is discharged from exhaust chimney by the power of polypropylene blower fan.

In order to ensure that waste gas discharges quality, air detection instrument is provided with described exhaust chimney upper end, for the row of detection Go out air quality.

Discharge of wastewater pipeline is connected to pretreatment pool, and fence structure is set on pretreatment pool, and the suspension in waste water is miscellaneous Matter and colloid are first filtered, and by pipeline, waste water enters wastewater collection pond by anticipating pond, is used in wastewater collection pond Photochemical catalyst carries out exterminating bacterium processing.

A kind of optimization technique puts case, is provided with two ultraviolet sterilizers in described wastewater collection pond, sterilizer is selected Wavelength is 254mm, kills the bacterium in waste water.

Waste water after sterilization, pond being adjusted into PH, NAOH is added in PH adjustment pond, PH is between 9-10 for regulation, Waste water after PH is adjusted, sedimentation basin is entered, and add aluminium chloride, contact break agent and flocculation aid so that in waste water Heavy metal precipitation get off, then into intermediate filtered pond, by the waste water in intermediate filtered pond, enter anaerobic pond, anaerobism Reaction tank uses concrete structure, and most of organic matter in waste water is carried out into anaerobic digestion using anaerobes such as methane backerias, Difficult decompose in sewage is changed into labile dissolved organic matter with non-solubility organic matter simultaneously, given up in anaerobic reation pool Water enters aerobic biochemical pool by pipeline, and aerobic biochemical pool uses concrete structure, the connecting fan in aerobic biochemical pool, together Shi Liyong aerobic microbiologicals decomposing organic matter produces carbon dioxide and water, while cultivates nitrifier with the ammonia nitrogen in Decomposition Wastewater, Nitrate nitrogen is converted into, the waste water of aerobic biochemical pool after charcoal absorption, water softener is entered, aerobic biochemical Water softening in pond, the waste water after softening enter cartridge filter, and by filtering, water quality holding vessel, water quality storage are put into after filtering The water for depositing tank carries out industrial production line recycling.

Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (4)

  1. A kind of 1. electroplating industry waste gas Waste Water Treatment, it is characterised in that including:Two groups of exhaust-gas treatment and wastewater treatment Into part, suspended hood is provided with plating workplace upper end, suspended hood is cover body structure, and there is provided suspended hood air outlet slit, leads to Cross suspended hood air outlet slit and be connected with exhaust piping, be provided with valve mechanism in plating workplace lower end, be connected to by valve Discharge of wastewater pipeline, by suspended hood air outlet slit, waste gas enters filter, and solid particle polluter is removed, after removal Waste gas enters heat exchanger by pipeline, and heat exchanger lower end is understructure, and heat exchanger includes housing and internal cavities, empty internally Intracavitary is provided with flow distribution plate, and heat exchanger uses Horizontal Cylinder structure, on heat exchangers there is provided exhaust gas inlet, waste gas outlet, And connect and be provided with two cooling water circulation mouths, waste gas is discharged from waste gas outlet and enters scrubbing tower, scrubbing tower by pipeline Using vertical structure of column scrubber, scrubbing tower is spraying layer, packing layer and bottom water tank successively from top to bottom, is set in packing layer Pall ring filler, packing layer and water tank are separated by dividing plate, and are provided with mouth spray at the top of packing layer, mouth spray connection There is shower, the spray tube portion inside scrubbing tower is provided with spray head, and the shower lower end outside scrubbing tower is connected with Suction pump, a loop structure is turned into by water pump power shower, while dosing mouth is provided with washing tower side wall, Waste gas outlet is provided with the top of scrubbing tower, waste gas enters Dry Absorber, Dry Absorber from the waste gas outlet of scrubbing tower Using horizontal cylinder structure, Dry Absorber is divided into two parts of activated carbon adsorption layer and film process unit, is adsorbed by drying The waste gas of device enters exhaust chimney, and exhaust chimney uses column structure, in order to ensure that waste gas discharges quality, in described exhaust Upper chimney end is provided with air detection instrument, and discharge of wastewater pipeline is connected to pretreatment pool, fence structure is set on pretreatment pool, Suspended impurity in waste water and colloid are first filtered, by pipeline, waste water enters wastewater collection pond by anticipating pond, Exterminating bacterium processing is carried out using photochemical catalyst in wastewater collection pond, the waste water after sterilization, pond is adjusted into pH, is adjusted in pH NaOH is added in whole pond, pH is between 9-10 for regulation, the waste water after pH is adjusted, enters sedimentation basin, and add alkali formula Aluminium chloride, contact break agent and flocculation aid so that the heavy metal precipitation in waste water gets off, then into intermediate filtered pond, in Between filtering ponds waste water, enter anaerobic pond, anaerobic reation pool uses concrete structure, will be useless using methane backeria anaerobe Most of organic matter carries out anaerobic digestion in water, while difficult decompose in sewage is changed into easy decomposition with non-solubility organic matter Dissolved organic matter, waste water enters aerobic biochemical pool by pipeline in anaerobic reation pool, and aerobic biochemical pool uses concrete Structure, the connecting fan in aerobic biochemical pool, while carbon dioxide and water are produced using aerobic microbiological decomposing organic matter, simultaneously Nitrifier is cultivated with the ammonia nitrogen in Decomposition Wastewater, nitrate nitrogen is converted into, the waste water of aerobic biochemical pool is passed through charcoal absorption Afterwards, water softener is entered, the water in aerobic biochemical pool is softened, the waste water after softening enters cartridge filter, passed through Filter, is put into water quality holding vessel after filtering, the water of water quality holding vessel carries out industrial production line recycling.
  2. 2. a kind of electroplating industry waste gas Waste Water Treatment according to claim 1, it is characterised in that in order that must be right The further absorption of waste gas, improve the rigidity of Dry Absorber, between activated carbon adsorption layer and film process unit be provided with every Harden structure.
  3. 3. a kind of electroplating industry waste gas Waste Water Treatment according to claim 1, it is characterised in that in exhaust chimney Top is provided with rainhat, prevents leak from leaking, and polypropylene blower fan is provided with exhaust chimney lower end, by polypropylene blower fan Power discharges waste gas from exhaust chimney.
  4. 4. a kind of electroplating industry waste gas Waste Water Treatment according to claim 1, it is characterised in that in wastewater collection Pond is provided with two ultraviolet sterilizers.
CN201610448472.2A 2016-06-21 2016-06-21 A kind of electroplating industry waste gas Waste Water Treatment CN105920964B (en)

Priority Applications (1)

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CN201610448472.2A CN105920964B (en) 2016-06-21 2016-06-21 A kind of electroplating industry waste gas Waste Water Treatment

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Application Number Priority Date Filing Date Title
CN201610448472.2A CN105920964B (en) 2016-06-21 2016-06-21 A kind of electroplating industry waste gas Waste Water Treatment

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CN105920964B true CN105920964B (en) 2017-12-19

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CN106630263A (en) * 2016-11-25 2017-05-10 湖州山海环保工程有限公司 Efficient treatment equipment of sewage and waste gas

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CN101732966A (en) * 2009-12-10 2010-06-16 新余市长城铜产品开发有限公司 Method and device for wet treatment of beryllium-containing waste gas
CN202199258U (en) * 2011-08-23 2012-04-25 浙江省环境工程有限公司 Waste gas treatment device for scouring pad oven
CN102423613B (en) * 2011-08-23 2013-10-02 武汉兴能环保技术有限公司 Ammonia desulfurization method for effectively removing chlorine and fluorine ions and heavy metal ions
CN102389698A (en) * 2011-09-16 2012-03-28 百力达太阳能股份有限公司 Effective method for industrial fluorinion-containing waste gas treatment
KR101336147B1 (en) * 2012-02-21 2013-12-16 (주)하이에코텍 Air cleaning system

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