CN106277647A - The process of mining smelting industry heavy metal wastewater thereby advanced treating - Google Patents

The process of mining smelting industry heavy metal wastewater thereby advanced treating Download PDF

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Publication number
CN106277647A
CN106277647A CN201610857816.5A CN201610857816A CN106277647A CN 106277647 A CN106277647 A CN 106277647A CN 201610857816 A CN201610857816 A CN 201610857816A CN 106277647 A CN106277647 A CN 106277647A
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waste water
heavy metal
concentration
metal wastewater
minute
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Inventor
刘祖鹏
曹龙文
刘朝辉
张变革
董冕
梁思铁
李正权
周俊峰
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Daye Nonferrous Metals Co Ltd
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Daye Nonferrous Metals Co Ltd
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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
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/103—Arsenic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/29—Chlorine compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses the process of mining smelting industry heavy metal wastewater thereby advanced treating, comprise the steps: 1. to add flocculant, stirring, sedimentation in the waste water of sedimentation tank A, separate, clear liquid enters aeration oxidation pool;2. in aeration oxidation pool, add biological preparation, aerating oxidation;3. the waste water after aerating oxidation enters back in reaction tank, alkali regulation pH value, adds softening agent reaction, enters in sedimentation tank B and stand, separates, and clear liquid enters depositing reservoir;In depositing reservoir, add flocculant, stirring, sedimentation, siphon, with sulfur acid for adjusting pH value, successively through sand filtration, activated carbon adsorption, ultrafiltration, reverse-osmosis treated, to obtain final product；Use present invention process method to process heavy metal wastewater thereby, waste water NH can be significantly reduced3N, COD, SS index, within total hardness, total dissolved solid (TDS) are maintained at 100mg/L, within chlorine ion concentration is maintained at 50mg/L；This process strong shock resistance, secondary pollution be little, without supplementing other nutrient sources, the extensive reuse of the heavy metal wastewater thereby that can realize digging up mine, smelt, process, be widely used in waste water treatment industry.

Description

The process of mining smelting industry heavy metal wastewater thereby advanced treating
Technical field
The present invention relates to heavy metal wastewater thereby administer and reuse technology field, particularly relate to smelting industry heavy metal wastewater thereby of digging up mine The process of advanced treating.This method may be used for the mining of coloured industry, ore dressing, smelt, the process such as processing produces contains Cadmium, arsenic, lead, zinc, copper, etc. the advanced treating of one or more heavy metal wastewater therebies.
Background technology
Water is a kind of resource, and the existence with the mankind is closely bound up.China is put into one of 13 poor-water countries, per capita Water resource 1916.3m3, only the 1/4 of world occupancy volume per person.The whole nation has more than 380 city to be in exsiccosis, 128 cities City is in state in short supply, and water resource has become restriction China's economy and the key factor of social development.
Heavy metal wastewater thereby water quality is complicated, and pollution factor is more, heavy metal ions in wastewater, total dissolved solid (TDS), total Hardness, chloride ion undulatory property are big.For coloured industry mining, ore dressing, smelt, the process such as processing produces containing cadmium, arsenic, lead, Zinc, copper, etc. the advanced treating of one or more heavy metal wastewater therebies, from the point of view of processing mode the most in recent years, be all really Protect outer draining up to standard on the premise of, realize the reuse of waste water in conjunction with Sewage advanced treatment technology.The most traditional Calx soda The technique such as method, coagulating sedimentation meets the extensive reuse of waste water, but waste water quality reuse focuses mostly in afforesting, flush the toilet etc. water quality Less demanding water spot, there is multiple pollution factor can not remove simultaneously, the features such as the quantity of slag is big that system produces；Neutralization precipitation Meeting Sewage advanced treatment in conjunction with membrane filtration, backwater can be applicable to recirculated cooling water work, but is in small-scale application state, and And membrane lifetime is short, cost for wastewater treatment is high；Ion exchange can effectively purify waste water noxious substance, removes acidity or the alkali of waste water Property Organic substance, such as phenols, acid, amine etc., but waste water exchange introduces other materials, and needs to add slow releasing agent, antisludging agent Deng material, water quality is difficult to purify further.
Summary of the invention
The present invention is directed to the deficiency existing for prior art, it is provided that a kind of mining smelting industry heavy metal wastewater thereby advanced treating Process, the method quantity of slag is less, and advantage of lower cost is simple to operate, it is adaptable to the degree of depth of extensive heavy metal wastewater thereby Process.
The process of the mining smelting industry heavy metal wastewater thereby advanced treating of the present invention, comprises the steps:
(1) waste water of sedimentation tank A adds flocculant, stirring, after settling 20-30 minute, bed mud filter pressing separates, and filtering residue discards, Supernatant and filtrate enter aeration oxidation pool；
(2) aeration oxidation pool is constantly passed through air, adds biological preparation, aerating oxidation 40-75 minute；
(3) gas oxidation after waste water enter back in reaction tank, be initially charged alkali regulation pH value to 9-10, add softening agent reaction 5- Entering after 10 minutes after standing 1-2 hour in sedimentation tank B, bed mud filter pressing separates, and filtering residue discards, and supernatant and filtrate enter clear Clear pond;Adding flocculant, stirring in depositing reservoir, after settling 50-60 minute, siphon supernatant also enters siphon liquid and deposits pond, After sulfur acid for adjusting pH value to 6.5 8.5, successively through sand filtration, activated carbon adsorption, ultrafiltration, reverse-osmosis treated, to obtain final product；After testing, Arsenic in waste water concentration is down to arsenic concentration≤0.1mg/L from 1 3mg/L；Copper concentration from 1 5mg/L be reduced to copper concentration≤ 0.05mg/L；Zinc concentration is reduced to zinc concentration≤0.05mg/L from 1 6mg/L；COD from 150 550mg/L be down to COD≤ 50mg/L；NH3-N is down to NH from 10-15mg/L3-N≤3mg/L；Chlorine ion concentration is down to≤50mg/ from 500 2200mg/L L；TDS is all down to≤100mg/L from 1500 5900mg/L, total hardness from 500 600mg/L；SS drops from 80 100mg/L To≤20mg/L；Stably reach the water standard of " urban sewage reutilization water for industrial use "；
Flocculant used is one or more in polyacrylamide, aluminum sulfate, aluminium polychlorid；Its consumption is every liter of waste water Middle input 0.25mg-1.0mg；
Biological preparation used is produced by Changsha Sai Ensi Environmental Protection Technology Co., Ltd, be a kind of rich in iron ion, polyhydroxy, many The mixture of carboxyl functional group;Its consumption presses 100 150 times of inputs of initial arsenic content in waste water；
Alkali used is one or more in sodium hydroxide, sodium carbonate, Sodamide., is used for regulating pH value of waste water 9 10；
Softening agent used is one or more in sodium carbonate, potassium carbonate, sodium bicarbonate；Its consumption is to put in every liter of waste water 1.2g-1.6g；
Ultrafilter membrane aperture used is 0.04-0.06 micron, and filter membrane precision is 20000-30000 dalton；Reverse osmosis unit film Assembly is made up of trilamellar membrane, and operating pressure is less than 1.0Mpa, backwashing pressure 0.5 0.8Mpa.
The present invention first passes through addition flocculant in waste water, makes the float (SS) in waste water settle, then passes through aeration Oxidation, makes the arsenic in waste water be converted into arsenic acid by arsenious acid, arsenic acid again with biological preparation in rich in the official of SP3 hybrid orbital Group can form coordination compound；Oxygen in air reacts with the reducing substances in waste water, removes the Organic substance in waste water, and stripping NH3-N；Heavy metal complex and OH under the conditions of alkalescence-Hydrolysis induced synthesis " micelle " is grown up, and forms amorphous state precipitate；Add again Enter softening agent sodium carbonate, CO3 2-、OH-With the Mg in waste water2+、Ca2+Form CaCO3 、Mg(OH)2Precipitation:
Ca++CO3 2-→CaCO3↓、Mg2++2OH-→Mg(OH)2↓
Again after flocculation, after removing (SS) in waste water further, clear liquid, depends on to 6.5 8.5 through 98% concentrated sulphuric acid regulation pH value Secondary through sand filtration, activated carbon, hyperfiltration treatment, the molecule in filtered wastewater, the macromole in absorption waste water, then through reverse osmosis Device removes total dissolved solid (TDS), chloride ion etc., so that water outlet reaches " urban sewage reutilization water for industrial use " (GB/T19923-2005) water standard.
Use present invention process method to process heavy metal wastewater thereby, waste water NH can be significantly reduced3-N, COD, SS index, the most firmly Within degree, total dissolved solid (TDS) are maintained at 100mg/L, within chlorine ion concentration is maintained at 50mg/L.This process resists Impact capacity is strong, secondary pollution is little, without supplementing other nutrient sources, can realize dig up mine, smelt, process advising greatly of heavy metal wastewater thereby Mould reuse, is widely used in waste water treatment industry.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the present invention.
Detailed description of the invention
Embodiment 1 is as a example by processing Daye Nonferrous Metal Co., Ltd.'s smelting factory production waste water, after testing, and waste water Middle arsenic concentration is 2.3mg/L, and copper concentration is 1.5mg/L, zinc concentration be 1.2mg/L, COD be 250.8mg/L, NH3-N be 13.6mg/L, chlorine ion concentration be 800mg/L, TDS be 3200.4mg/L, total hardness be 525.5mg/L, SS be 88.2mg/L. Process step is as follows:
(1) in the waste water in sedimentation tank A, add polyacrylamide flocculant, stir, after settling 20-30 minute, bed mud filter pressing Separating, filtering residue discards, and supernatant and filtrate enter aeration oxidation pool；
(2) in aeration oxidation pool, be constantly passed through air, add by Changsha Sai Ensi Environmental Protection Technology Co., Ltd produce rich in Iron ion, polyhydroxy, the biological preparation of many carboxyl functional groups mixture, aerating oxidation 40-75 minute；
(3) waste water after aerating oxidation enters back in reaction tank, be initially charged sodium hydroxide regulation pH value to 9-10, add carbonic acid Sodium reacts 5-10 minute, and waste water enters back into after standing 1-2 hour in sedimentation tank B, and bed mud filter pressing separates, and filtering residue discards, supernatant And filtrate enters depositing reservoir;In depositing reservoir, add polyacrylamide flocculant, stir, after settling 50-60 minute, siphon supernatant Liquid also enters siphon liquid and deposits pond, after sulfur acid for adjusting pH value to 6.5 8.5, successively through sand filtration, activated carbon adsorption, ultrafiltration, anti- Infiltration processes, and to obtain final product；After testing, arsenic in waste water concentration is 0.08mg/L；Copper concentration is trace, and zinc concentration is trace, and COD is 29.6mg/L；NH3-N is 1.6mg/L；Chlorine ion concentration is 36.9mg/L；TDS is 70.9mg/L, total hardness is 45mg/L；SS For 16.4mg/L；Stably reach the water standard of " urban sewage reutilization water for industrial use "；
Flocculant polyacrylamide consumption is input 0.25mg in every liter of waste water；
Biological preparation consumption presses 100 times of inputs of initial arsenic content in waste water；
Softening agent be sodium carbonate amount be in every liter of waste water input 1.2g；
Ultrafilter membrane aperture used is 0.06 micron, and filter membrane precision is 20000 dalton；Reverse osmosis unit membrane module is by trilamellar membrane Composition, operating pressure is less than 1.0Mpa, backwashing pressure 0.5Mpa.
Embodiment 2 is as a example by processing Daye Nonferrous Metal Co., Ltd.'s Tonglushan Mine production waste water, after testing, useless In water, arsenic concentration is 1.6mg/L, and copper concentration is 4.6mg/L, Zn content be 1.8mg/L, COD be 310.5mg/L, NH3-N be 10.5mg/L, chlorine ion concentration be 628.5mg/L, TDS be 2580.9mg/L, total hardness be 585.6mg/L, SS be 90.3mg/ L.Process step is as follows:
(1) adding aluminum sulfate flocculant in the waste water in sedimentation tank A, stirring, after settling 20-30 minute, bed mud filter pressing separates, filter Slag discards, and supernatant and filtrate enter aeration oxidation pool；
(2) in aeration oxidation pool, be constantly passed through air, add by Changsha Sai Ensi Environmental Protection Technology Co., Ltd produce rich in Iron ion, polyhydroxy, the biological preparation of many carboxyl functional groups mixture, aerating oxidation 40-75 minute；
(3) waste water after aerating oxidation enters back in reaction tank, be initially charged sodium carbonate regulation pH value to 9-10, add potassium carbonate Reacting 5-10 minute, waste water enters back in sedimentation tank B and stands after 1-2 hour, and bed mud filter pressing separates, and filtering residue discards, supernatant and Filtrate enters depositing reservoir;In depositing reservoir, add polyacrylamide flocculant, stir, after settling 50-60 minute, siphon supernatant And enter siphon liquid and deposit pond, after sulfur acid for adjusting pH value to 6.5 8.5, successively through sand filtration, activated carbon adsorption, ultrafiltration, reverse osmosis Thoroughly process, to obtain final product；After testing, arsenic in waste water concentration is 0.07mg/L；Copper concentration is 0.01, and zinc concentration is 0.02；COD is 32.6mg/L；NH3-N is 1.2mg/L；Chlorine ion concentration is 22.8mg/L；TDS is 65.9mg/L, total hardness is 40.5mg/L； SS is 12.6mg/L；Stably reach the water standard of " urban sewage reutilization water for industrial use "；
Flocculant polyacrylamide consumption is input 1.0mg in every liter of waste water；
Biological preparation consumption presses 110 times of inputs of initial arsenic content in waste water；
Softening agent be sodium carbonate amount be in every liter of waste water input 1.6g；
Ultrafilter membrane aperture used is 0.06 micron, and filter membrane precision is 20000 dalton；Reverse osmosis unit membrane module is by trilamellar membrane Composition, operating pressure is less than 1.0Mpa, backwashing pressure 0.5Mpa.
Embodiment 3 is as a example by processing Daye Nonferrous Metal Co., Ltd.'s Feng Shan copper mine production waste water, after testing, useless In water, arsenic concentration is 2.11mg/L, and copper concentration is 3.83mg/L, zinc concentration be 5.26mg/L, COD be 380.9mg/L, NH3-N be 12.6mg/L, chlorine ion concentration be 1650.7mg/L, TDS be 4200.7mg/L, total hardness be 540.6mg/L, SS be 90.8mg/ L.Process step is as follows:
(1) in the waste water in sedimentation tank A, add flocculant of polymeric aluminium chloride, stir, after settling 20-30 minute, bed mud filter pressing Separating, filtering residue discards, and supernatant and filtrate enter aeration oxidation pool；
(2) in aeration oxidation pool, be constantly passed through air, add by Changsha Sai Ensi Environmental Protection Technology Co., Ltd produce rich in Iron ion, polyhydroxy, the biological preparation of many carboxyl functional groups mixture, aerating oxidation 40-75 minute；
(3) waste water after aerating oxidation enters back in reaction tank, be initially charged Sodamide. regulation pH value to 9-10, add bicarbonate Sodium reacts 5-10 minute, and waste water enters back into after standing 1-2 hour in sedimentation tank B, and bed mud filter pressing separates, and filtering residue discards, supernatant And filtrate enters depositing reservoir;In depositing reservoir, add flocculant of polymeric aluminium chloride, stir, after settling 50-60 minute, siphon supernatant Liquid also enters siphon liquid and deposits pond, after sulfur acid for adjusting pH value to 6.5 8.5, successively through sand filtration, activated carbon adsorption, ultrafiltration, anti- Infiltration processes, and to obtain final product；After testing, arsenic in waste water concentration is 0.05mg/L；Copper concentration is trace, and zinc concentration is 0.01mg/L, COD For 27.6mg/L；NH3-N is 2.1mg/L；Chlorine ion concentration is 42.6mg/L；TDS is 88.4mg/L, total hardness is 60.7mg/ L；SS is 10.8mg/L；Stably reach the water standard of " urban sewage reutilization water for industrial use "；
Flocculant polyacrylamide consumption is input 1.2mg in every liter of waste water；
Biological preparation consumption presses 135 times of inputs of initial arsenic content in waste water；
Softening agent be sodium carbonate amount be in every liter of waste water input 1.3g；
Ultrafilter membrane aperture used is 0.06 micron, and filter membrane precision is 20000 dalton；Reverse osmosis unit membrane module is by trilamellar membrane Composition, operating pressure is less than 1.0Mpa, backwashing pressure 0.5Mpa.

Claims (2)

1. the process of smelting industry heavy metal wastewater thereby advanced treating of digging up mine, it is characterised in that comprise the steps:
1. adding flocculant, stirring in the waste water of sedimentation tank A, after settling 20-30 minute, bed mud filter pressing separates, and filtering residue discards, Supernatant and filtrate enter aeration oxidation pool；
2. in aeration oxidation pool, constantly it is passed through air, adds biological preparation, aerating oxidation 40-75 minute；
3. the waste water after aerating oxidation enters back in reaction tank, be initially charged alkali regulation pH value to 9-10, add softening agent reaction Entering after 5-10 minute after standing 1-2 hour in sedimentation tank B, bed mud filter pressing separates, and filtering residue discards, and supernatant and filtrate enter Depositing reservoir;Adding flocculant, stirring in depositing reservoir, after settling 50-60 minute, siphon supernatant also enters siphon liquid and deposits Pond, after sulfur acid for adjusting pH value to 6.5 8.5, successively through sand filtration, activated carbon adsorption, ultrafiltration, reverse-osmosis treated, to obtain final product；Through inspection Surveying, arsenic in waste water concentration is down to arsenic concentration≤0.1mg/L from 1 3mg/L；Copper concentration from 1 5mg/L be reduced to copper concentration≤ 0.05mg/L；Zinc concentration is reduced to zinc concentration≤0.05mg/L from 1 6mg/L；COD from 150 550mg/L be down to COD≤ 50mg/L；NH3-N is down to NH from 10-15mg/L3-N≤3mg/L；Chlorine ion concentration is down to≤50mg/ from 500 2200mg/L L；TDS is all down to≤100mg/L from 1500 5900mg/L, total hardness from 500 600mg/L；SS drops from 80 100mg/L To≤20mg/L；Stably reach the water standard of " urban sewage reutilization water for industrial use "；
Flocculant used is one or more in polyacrylamide, aluminum sulfate, aluminium polychlorid；Its consumption is every liter of waste water Middle input 0.25mg-1.0mg；
Biological preparation used is produced by Changsha Sai Ensi Environmental Protection Technology Co., Ltd, be a kind of rich in iron ion, polyhydroxy, many The mixture of carboxyl functional group;Its consumption presses 100 150 times of inputs of initial arsenic content in waste water；
Alkali used is one or more in sodium hydroxide, sodium carbonate, Sodamide., is used for regulating pH value of waste water 9 10；
Softening agent used is one or more in sodium carbonate, potassium carbonate, sodium bicarbonate；Its consumption is to put in every liter of waste water 1.2g-1.6g。
The process of mining smelting industry heavy metal wastewater thereby advanced treating the most according to claim 1, it is characterised in that: Ultrafilter membrane aperture used is 0.04-0.06 micron, and filter membrane precision is 20000-30000 dalton；Reverse osmosis unit membrane module Being made up of trilamellar membrane, operating pressure is less than 1.0Mpa, backwashing pressure 0.5 0.8Mpa.
CN201610857816.5A 2016-09-28 2016-09-28 The process of mining smelting industry heavy metal wastewater thereby advanced treating Pending CN106277647A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010752A (en) * 2017-04-10 2017-08-04 安徽恒源煤电股份有限公司 A kind of emulsion matches somebody with somebody liquid purifier
CN108706785A (en) * 2018-08-10 2018-10-26 大冶有色金属有限责任公司 A kind of mining smelting wastewater exception water quality emergency treatment device and method
CN109231542A (en) * 2018-09-13 2019-01-18 平安开诚智能安全装备有限责任公司 Mining equiment water processing system
CN109384348A (en) * 2017-08-14 2019-02-26 上海同昕环境科技有限公司 A kind of waste water treatment system and method containing heavy metal
CN112645509A (en) * 2021-01-25 2021-04-13 南昌大学 Rare earth smelting separation wastewater recycling treatment process
CN114195328A (en) * 2021-12-02 2022-03-18 北京拓凯化工技术有限公司 Advanced treatment method for sewage and wastewater in steel industry
CN115779873A (en) * 2022-11-04 2023-03-14 西北矿冶研究院 Magnetic biomass charcoal material and copper smelting acidic wastewater treatment method
CN116119879A (en) * 2023-03-02 2023-05-16 常熟理工学院 Treatment method of heavy metal-containing smelting flue gas acid making wastewater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101462801A (en) * 2009-01-16 2009-06-24 首钢总公司 System and process for desalting steel comprehensive sewage reuse water by double-membrane method
CN102295372A (en) * 2011-05-18 2011-12-28 山东恒邦冶炼股份有限公司 Method for treating acidic smelting waste water containing high arsenic and heavy metal ions
CN102311180A (en) * 2010-06-29 2012-01-11 中国石油化工股份有限公司 Method for removing and recovering copper and zinc in wastewater of copper-zinc catalysts
CN104973714A (en) * 2015-06-23 2015-10-14 广西冶金研究院 Deep purification and recycling method for waste water containing heavy metal ions
CN204999736U (en) * 2015-07-20 2016-01-27 赵勋亮 Waste water treatment and recycle system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101462801A (en) * 2009-01-16 2009-06-24 首钢总公司 System and process for desalting steel comprehensive sewage reuse water by double-membrane method
CN102311180A (en) * 2010-06-29 2012-01-11 中国石油化工股份有限公司 Method for removing and recovering copper and zinc in wastewater of copper-zinc catalysts
CN102295372A (en) * 2011-05-18 2011-12-28 山东恒邦冶炼股份有限公司 Method for treating acidic smelting waste water containing high arsenic and heavy metal ions
CN104973714A (en) * 2015-06-23 2015-10-14 广西冶金研究院 Deep purification and recycling method for waste water containing heavy metal ions
CN204999736U (en) * 2015-07-20 2016-01-27 赵勋亮 Waste water treatment and recycle system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010752A (en) * 2017-04-10 2017-08-04 安徽恒源煤电股份有限公司 A kind of emulsion matches somebody with somebody liquid purifier
CN109384348A (en) * 2017-08-14 2019-02-26 上海同昕环境科技有限公司 A kind of waste water treatment system and method containing heavy metal
CN108706785A (en) * 2018-08-10 2018-10-26 大冶有色金属有限责任公司 A kind of mining smelting wastewater exception water quality emergency treatment device and method
CN109231542A (en) * 2018-09-13 2019-01-18 平安开诚智能安全装备有限责任公司 Mining equiment water processing system
CN112645509A (en) * 2021-01-25 2021-04-13 南昌大学 Rare earth smelting separation wastewater recycling treatment process
CN114195328A (en) * 2021-12-02 2022-03-18 北京拓凯化工技术有限公司 Advanced treatment method for sewage and wastewater in steel industry
CN114195328B (en) * 2021-12-02 2024-03-19 北京拓凯化工技术有限公司 Advanced treatment method for steel industry sewage and wastewater
CN115779873A (en) * 2022-11-04 2023-03-14 西北矿冶研究院 Magnetic biomass charcoal material and copper smelting acidic wastewater treatment method
CN116119879A (en) * 2023-03-02 2023-05-16 常熟理工学院 Treatment method of heavy metal-containing smelting flue gas acid making wastewater

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