CN107055958A - A kind of comprehensive processing technique of the washes of smelting iron and steel - Google Patents
A kind of comprehensive processing technique of the washes of smelting iron and steel Download PDFInfo
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- CN107055958A CN107055958A CN201710256756.6A CN201710256756A CN107055958A CN 107055958 A CN107055958 A CN 107055958A CN 201710256756 A CN201710256756 A CN 201710256756A CN 107055958 A CN107055958 A CN 107055958A
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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
- C02F1/22—Treatment of water, waste water, or sewage by freezing
-
- 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
-
- 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
-
- 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
- C02F1/66—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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a kind of comprehensive processing technique of the washes of smelting iron and steel, comprise the following steps:a)Waste water treating agent is added into smelting iron and steel washes;b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is the addition of ozone, unit:G/m3, Y are the COD value in waste water, unit:Mg/L, Z=10~25;C) then add precipitating reagent;D) then add flocculant;E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, obtain the low-solids water and dense saline solution that can be used for smelting washing;G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.The present invention has technique simple, and environmentally safe, economical and efficient, energy consumption are low, the advantage of high treating effect.
Description
Technical field
The present invention relates to the integrated treatment of technical field of sewage, more particularly to a kind of dirt washes of smelting iron and steel
Technique.
Background technology
In recent years, the crisis of facing mankind water had been undisputable fact.China is added to urban infrastructure construction and ring
The input of border protection, strengthens comprehensive environmental improvement, so that gross contamination emission is effectively controlled, some areas and city
Environmental quality makes moderate progress.It is every dirty but according to environmental monitoring results statistical analysis, China's water pollution situation is still very severe
Dye thing total emission volumn is very big, and pollution level is still at a relatively high level.The particularly steel yield of China is continuously kept
First of the world, China turns into big steel country.Steel industry is high pollution rich and influential family, generally often produces one ton of steel and is accomplished by using water
100 to 150 cubic metres, if these waste water are directly discharged, water pollution will be further exacerbated by, people's living environment is influenceed.
The pollutant such as SS, oil, saline and alkaline, COD is mainly contained in wastewater of steel industry, with colourity is higher, major pollutants
The features such as change in concentration is big, water quality is unstable, oil slick is more.Wastewater of steel industry processing will be directed to different water quality, take not
Same sewage disposal device.Steel wastewater has 70% sewer for being turbid recirculating cooling water system, such as BF Gas Washing water, punching
Slag waste water, dust waste water of converter, conticaster waste water etc..Main method has:1st, Physical, mainly suspends according to contained by waste water
The proportion difference of thing is allowed to separate using physical action, can Gravity Separation, centrifugation, filtering, evaporative crystallization etc., its purpose
It is oil removal, mucilage binding material.2nd, chemical method, mainly by the effect of chemical reaction, in conversion, separation, recovery waste water
Polluter, this method includes neutralisation, Coagulation Method, chemical precipitation facture and redox facture, and the purpose is to adjust
PH value, can remove oil removal, gluey and dissolved matter.3rd, physicochemical treatment method, mainly including electrolysis, absorption method,
UF membrane and magnetic separation method, remove suspension, gluey and dissolved matter.4th, biological treatment, mainly uses the generation of microorganism
The effect of thanking removes the method for Organic Pollutants in Wastewater, the active sludge of common method, biomembrance process, oxidation pond process, sludge
Digestion method etc., can remove colloid and dissolved matter.
Comprehensive reutilization smelting iron and steel dirt is one of important topic that current steel industry faces, but these steel smeltings
Small dirt grain diameter, easily light weight, diffusion are refined, transport and processing procedure easily produce substantial amounts of waste gas, useless dirt, pollute environment,
With the possibility for seriously endangering health, while smelting, dirt specific surface area is big, surface free energy is high, high adsorption capacity.Therefore
Generally require to carry out removal of impurities cleaning to it before comprehensive utilization smelting iron and steel dirt, the washes produced during this contains
Heavy metal ion, potassium ion, chlorion etc..It is both pollution environment if not comprehensively utilized to these waste water, while being also one
Plant the waste of resource.
The content of the invention
Goal of the invention:The present invention is directed to deficiency of the prior art, proposes that one kind has technique simple, to environment without dirt
Dye, economical and efficient, energy consumption are low, the comprehensive processing technique of the dirt washes of the smelting iron and steel of high treating effect.
Technical scheme:A kind of comprehensive processing technique of the washes of smelting iron and steel of the present invention, including following step
Suddenly:
a)Waste water treating agent is added into smelting iron and steel washes, waste water treating agent is made up of the raw material below according to part:It is poly-
Close 25 parts of aluminium chloride, 10 parts of aluminum sulfate, 15 parts of ferrous sulfate, 5 parts of chloro sulphuric acid iron, 5 parts of chloro sulphuric acid copper, -6 parts of montmorillonite 2,
4-8 parts of nano titanium oxide, 4-7 parts of silica, 3-7 parts of sodium lignin sulfonate, 8-12 parts of bentonite, polyacrylamide 2-6
Part, 4-10 parts of PAFC, 1-5 parts of four ester of metatitanic acid fourth, 8-12 parts of activated carbon, 5-9 parts of phenylalanine, anhydrous sodium sulfate 4-
9 parts, 3-6 parts of sodium metaaluminate, 1-2 parts of coloured glaze base benzothiazole, 1-3 parts of ethylenediamine, 2-4 parts of NPE, dodecane
20-30 parts of 6-10 parts of base sodium sulphate, 3-7 parts of neopelex and microbial inoculum;
b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is smelly
The addition of oxygen, unit:G/m3, Y are the COD value in waste water, unit:In mg/L, Z=10~25, every cubic metre of waste water
Addition >=0.92g of high titanium slag;
C) then add precipitating reagent, precipitating reagent be potassium oxide, potassium hydroxide, calcium oxide, sodium hydroxide, sodium carbonate, vulcanized sodium in
Any one or two or more mixtures, the addition of the precipitating reagent is the 0.2%-1.3% of washes quality;
D) then add flocculant, formed suspension, the flocculant be bodied ferric sulfate, polyacrylamide, aluminium polychloride
In any one or two or more mixtures, the addition of the flocculant is the 0.07%- of washes quality
1.3%;
E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;
F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, can use
In the 35~110g/L of low-solids water and KCE content for the 6~35g/L of KCE content for smelting washing dense saline solution;
G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.
Further, the microbial inoculum is made up of saccharomycete, Candida albicans, sac fungus, aspergillus ustus, the yeast
Bacterium, Candida albicans, sac fungus, the mass ratio of aspergillus ustus are(2-4):(3-6):1:(2-7).
Further, the Ti content in the ilmenite concentrate described in step b is 55~60wt%.
Further, also include suspension liquid phase adjusting pH to 8~8.5 with hydrochloric acid between the step e and step f.
Further, the addition of the high titanium slag in every cubic metre of waste water is 0.95g.
Beneficial effect:The present invention can steam alkali metal and chlorion preenrichment, and freeze-drying, energy consumption compared to haline water
Hair, which has, greatly to be reduced, while the mode of this preenrichment has more wide application prospect in high-salt wastewater improvement,
Whole process environments are friendly, economical and efficient.Treatment effeciency can be improved more than 15%, contracting by being added when handling waste water after catalyst
The short wastewater treatment time, improve the wastewater treatment capacity in the unit interval., can be disposable in order to reduce wastewater treatment process
Excess catalyst is added in wastewater treatment equipment, a catalyst is changed every some months or several years.
After the inventive method is handled, the COD value of its waste water can be reduced to below 100mg/L, and required equipment is simple,
Processing time is short, handles waste water efficiency high, has broad application prospects.Aluminium polychloride, the sulfuric acid of waste water treating agent selection
The components such as aluminium, ferrous sulfate are soluble in water, and coagulation effect is excellent, product stability is good, and the symbiosis between each strain coordinates, and cooperates with
Chemical other components, the effect of excellent flocculation, purification speed is fast, and it is wide to be applicable pH value range, greatly strengthen the sewage disposal
Effect, the obvious processing effect to making steel waste water, advantageously reduces the processing cost of steel-making waste water, and the water after processing reaches discharge
Standard, both can directly be discharged, and can also be recycled.
Embodiment
With reference to specific embodiment, the invention will be further described:
Embodiment 1
A kind of comprehensive processing technique of the washes of smelting iron and steel, comprises the following steps:
a)Waste water treating agent is added into smelting iron and steel washes, waste water treating agent is made up of the raw material below according to part:It is poly-
Close 25 parts of aluminium chloride, 10 parts of aluminum sulfate, 15 parts of ferrous sulfate, 5 parts of chloro sulphuric acid iron, 5 parts of chloro sulphuric acid copper, montmorillonite 2 part, receive
4 parts of titanium dioxide of rice, 4 parts of silica, 3 parts of sodium lignin sulfonate, 8 parts of bentonite, 2 parts of polyacrylamide, aluminium polychloride
4 parts of iron, 1 part of four ester of metatitanic acid fourth, 8 parts of activated carbon, 5 parts of phenylalanine, 4 parts of anhydrous sodium sulfate, 3 parts of sodium metaaluminate, coloured glaze base benzo
1 part of thiazole, 1 part of ethylenediamine, 2 parts of NPE, 6 parts of lauryl sodium sulfate, 3 parts of neopelex with
And 20 parts of microbial inoculum;
b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is smelly
The addition of oxygen, unit:G/m3, Y are the COD value in waste water, unit:High titanium slag in mg/L, Z=10, every cubic metre of waste water
Addition be 0.92g;
C) and then precipitating reagent is added, precipitating reagent is the mixture of potassium oxide and potassium hydroxide, the addition of the precipitating reagent is washes
Wash the 0.2 of wastewater quality;
D) and then flocculant is added, forms suspension, the flocculant is the mixture of bodied ferric sulfate and polyacrylamide,
The addition of the flocculant is the 0.07 of washes quality;
E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;
F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, can use
In the KCE content 6g/L for smelting washing low-solids water and KCE content 35g/L dense saline solution;
G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.
Wherein, microbial inoculum is made up of saccharomycete, Candida albicans, sac fungus, aspergillus ustus, the saccharomycete, white
Candida albicans, sac fungus, the mass ratio of aspergillus ustus are 2:3:1:2.The Ti content in ilmenite concentrate described in step b is 55wt%.
Also include suspension liquid phase adjusting pH to 8 with hydrochloric acid between the step e and step f.
Embodiment 2
A kind of comprehensive processing technique of the washes of smelting iron and steel, comprises the following steps:
a)Waste water treating agent is added into smelting iron and steel washes, waste water treating agent is made up of the raw material below according to part:It is poly-
Close 25 parts of aluminium chloride, 10 parts of aluminum sulfate, 15 parts of ferrous sulfate, 5 parts of chloro sulphuric acid iron, 5 parts of chloro sulphuric acid copper, 4 parts of montmorillonite, receive
6 parts of titanium dioxide of rice, 5 parts of silica, 5 parts of sodium lignin sulfonate, 10 parts of bentonite, 4 parts of polyacrylamide, aluminium polychloride
6 parts of iron, 3 parts of four ester of metatitanic acid fourth, 10 parts of activated carbon, 7 parts of phenylalanine, 7 parts of anhydrous sodium sulfate, 5 parts of sodium metaaluminate, coloured glaze base benzo
1.5 parts of thiazole, 2 parts of ethylenediamine, 3 parts of NPE, 8 parts of lauryl sodium sulfate, 5 parts of neopelex
And 25 parts of microbial inoculum;
b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is smelly
The addition of oxygen, unit:G/m3, Y are the COD value in waste water, unit:High titanium in mg/L, Z=17, every cubic metre of waste water
The addition 0.94g of slag;
C) and then precipitating reagent is added, precipitating reagent is calcium oxide, and the addition of the precipitating reagent is the 0.7% of washes quality;
D) and then flocculant is added, forms suspension, the flocculant is aluminium polychloride, and the addition of the flocculant is
The 1.0% of washes quality;
E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;
F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, can use
In the KCE content 20g/L for smelting washing low-solids water and KCE content 70g/L dense saline solution;
G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.
Wherein, the microbial inoculum is made up of saccharomycete, Candida albicans, sac fungus, aspergillus ustus, the saccharomycete,
Candida albicans, sac fungus, the mass ratio of aspergillus ustus are 3:5:1:5.The Ti content in ilmenite concentrate described in step b is
57wt%.Also include suspension liquid phase adjusting pH to 8.2 with hydrochloric acid between the step e and step f.
Embodiment 3
A kind of comprehensive processing technique of the washes of smelting iron and steel, comprises the following steps:
a)Waste water treating agent is added into smelting iron and steel washes, waste water treating agent is made up of the raw material below according to part:It is poly-
Close 25 parts of aluminium chloride, 10 parts of aluminum sulfate, 15 parts of ferrous sulfate, 5 parts of chloro sulphuric acid iron, 5 parts of chloro sulphuric acid copper, 6 parts of montmorillonite, receive
8 parts of titanium dioxide of rice, 7 parts of silica, 7 parts of sodium lignin sulfonate, 12 parts of bentonite, 6 parts of polyacrylamide, aluminium polychloride
10 parts of iron, 5 parts of four ester of metatitanic acid fourth, 12 parts of activated carbon, 9 parts of phenylalanine, 9 parts of anhydrous sodium sulfate, 6 parts of sodium metaaluminate, coloured glaze base benzene
And 2 parts of thiazole, 3 parts of ethylenediamine, 4 parts of NPE, 10 parts of lauryl sodium sulfate, neopelex 7
30 parts of part and microbial inoculum;
b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is smelly
The addition of oxygen, unit:G/m3, Y are the COD value in waste water, unit:High titanium in mg/L, Z=25, every cubic metre of waste water
The addition of slag is 0.95g;
C) and then precipitating reagent is added, precipitating reagent is sodium hydroxide, the mixture of sodium carbonate, the addition of the precipitating reagent is washes
Wash the 1.3% of wastewater quality;
D) then add flocculant, formed suspension, the flocculant be polyacrylamide, the mixture of aluminium polychloride, institute
The addition for stating flocculant is the 1.3% of washes quality;
E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;
F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, can use
In the KCE content 35g/L for smelting washing low-solids water and KCE content 110g/L dense saline solution;
G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.
Wherein, the microbial inoculum is made up of saccharomycete, Candida albicans, sac fungus, aspergillus ustus, the saccharomycete,
Candida albicans, sac fungus, the mass ratio of aspergillus ustus are 4:6:1:7.The Ti content in ilmenite concentrate described in step b is
60wt%.Also include suspension liquid phase adjusting pH to 8.5 with hydrochloric acid between the step e and step f.
The present invention can have alkali metal and chlorion preenrichment, and freeze-drying, energy consumption greatly compared to high salt water evaporation
Big reduction, while the mode of this preenrichment has more wide application prospect, whole technique in high-salt wastewater improvement
It is environment-friendly, economical and efficient.More than 15% can be improved by treatment effeciency by being added when handling waste water after catalyst, shorten waste water
Processing time, improve the wastewater treatment capacity in the unit interval.In order to reduce wastewater treatment process, excess can be disposably added
Catalyst changed a catalyst in wastewater treatment equipment every some months or several years.
After the inventive method is handled, the COD value of its waste water can be reduced to below 100mg/L, and required equipment is simple,
Processing time is short, handles waste water efficiency high, has broad application prospects.Aluminium polychloride, the sulfuric acid of waste water treating agent selection
The components such as aluminium, ferrous sulfate are soluble in water, and coagulation effect is excellent, product stability is good, and the symbiosis between each strain coordinates, and cooperates with
Chemical other components, the effect of excellent flocculation, purification speed is fast, and it is wide to be applicable pH value range, greatly strengthen the sewage disposal
Effect, the obvious processing effect to making steel waste water, advantageously reduces the processing cost of steel-making waste water, and the water after processing reaches discharge
Standard, both can directly be discharged, and can also be recycled.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent variations and the modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (5)
1. a kind of comprehensive processing technique of the washes of smelting iron and steel, it is characterised in that:Comprise the following steps:
a)Waste water treating agent is added into smelting iron and steel washes, waste water treating agent is made up of the raw material below according to part:It is poly-
Close 25 parts of aluminium chloride, 10 parts of aluminum sulfate, 15 parts of ferrous sulfate, 5 parts of chloro sulphuric acid iron, 5 parts of chloro sulphuric acid copper, -6 parts of montmorillonite 2,
4-8 parts of nano titanium oxide, 4-7 parts of silica, 3-7 parts of sodium lignin sulfonate, 8-12 parts of bentonite, polyacrylamide 2-6
Part, 4-10 parts of PAFC, 1-5 parts of four ester of metatitanic acid fourth, 8-12 parts of activated carbon, 5-9 parts of phenylalanine, anhydrous sodium sulfate 4-
9 parts, 3-6 parts of sodium metaaluminate, 1-2 parts of coloured glaze base benzothiazole, 1-3 parts of ethylenediamine, 2-4 parts of NPE, dodecane
20-30 parts of 6-10 parts of base sodium sulphate, 3-7 parts of neopelex and microbial inoculum;
b)Then ozone processing is carried out, the amount X=Y/Z of ozone is added, and using ilmenite concentrate as catalyst, wherein, X is smelly
The addition of oxygen, unit:G/m3, Y are the COD value in waste water, unit:In mg/L, Z=10~25, every cubic metre of waste water
Addition >=0.92g of high titanium slag;
C) then add precipitating reagent, precipitating reagent be potassium oxide, potassium hydroxide, calcium oxide, sodium hydroxide, sodium carbonate, vulcanized sodium in
Any one or two or more mixtures, the addition of the precipitating reagent is the 0.2%-1.3% of washes quality;
D) then add flocculant, formed suspension, the flocculant be bodied ferric sulfate, polyacrylamide, aluminium polychloride
In any one or two or more mixtures, the addition of the flocculant is the 0.07%- of washes quality
1.3%;
E) suspension of formation is subjected to separation of solid and liquid, and collects solid phase and liquid phase respectively;
F) liquid phase in step e is delivered into graphene oxide film, completes the preenrichment of alkali metal and chlorion, can use
In the 35~110g/L of low-solids water and KCE content for the 6~35g/L of KCE content for smelting washing dense saline solution;
G) dense saline solution is carried out being freeze-dried to obtain sylvite and fresh water.
2. a kind of comprehensive processing technique of the washes of smelting iron and steel according to claim 1, it is characterised in that:Institute
State microbial inoculum to be made up of saccharomycete, Candida albicans, sac fungus, aspergillus ustus, the saccharomycete, Candida albicans, ascus
Bacterium, the mass ratio of aspergillus ustus are(2-4):(3-6):1:(2-7).
3. a kind of comprehensive processing technique of the washes of smelting iron and steel according to claim 1, it is characterised in that:Step
The Ti content in ilmenite concentrate described in rapid b is 55~60wt%.
4. a kind of comprehensive processing technique of the washes of smelting iron and steel according to claim 1, it is characterised in that:Institute
State also includes suspension liquid phase hydrochloric acid adjusting pH to 8~8.5 between step e and step f.
5. a kind of comprehensive processing technique of the washes of smelting iron and steel according to claim 1, it is characterised in that:It is described
The addition of high titanium slag in every cubic metre of waste water is 0.95g.
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CN108622954A (en) * | 2018-05-28 | 2018-10-09 | 苏州佑君环境科技有限公司 | A kind of preparation method of domestic sewage in rural areas cleanser |
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CN103991995A (en) * | 2014-06-04 | 2014-08-20 | 孙伟 | Comprehensive utilization method for iron and steel smelting dust washing wastewater |
CN105293833A (en) * | 2015-11-23 | 2016-02-03 | 北京中科圣泰环境科技有限公司 | Comprehensive wastewater treatment device and process for iron and steel integrated enterprise |
CN105967351A (en) * | 2016-07-13 | 2016-09-28 | 安徽国能亿盛环保科技有限公司 | Wastewater treating agent for steel smelting and preparation method thereof |
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CN107585802A (en) * | 2017-10-13 | 2018-01-16 | 南京旭羽睿材料科技有限公司 | A kind of graphene composite material applied to Industrial Waste Water Treatments |
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