CN106746172A - A kind of livestock and poultry leachate processing method of content of beary metal high - Google Patents
A kind of livestock and poultry leachate processing method of content of beary metal high Download PDFInfo
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- CN106746172A CN106746172A CN201611012957.3A CN201611012957A CN106746172A CN 106746172 A CN106746172 A CN 106746172A CN 201611012957 A CN201611012957 A CN 201611012957A CN 106746172 A CN106746172 A CN 106746172A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- 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
Abstract
The invention discloses a kind of livestock and poultry leachate processing method of content of beary metal high, the method removes different pollutants in livestock and poultry percolate using discarded industrial dilute hydrochloric acid, waste edible fungus gurry mushroom bran, discarded carbide slag, discarded rock phosphate in powder and clay mineral substep, not only reduce production cost, and treatment material environment friendly non-secondary pollution, obvious processing effect.Therefore; the method of the present invention is simple to operate, easy to spread; compared with conventional method; improve the clearance 5~8% of macromolecular particle thing, colloid and suspension; the precipitation clearance 3~5% of waste water is improved, heavy metal in waste water clearance 5~8% is improved, production cost 20% is reduced; shorten away the process time more than 10 days, be capable of achieving scale and the industrialization production of poultry waste water.
Description
Technical field
The present invention relates to a kind of livestock and poultry leachate processing method of content of beary metal high, belong to livestock culture industry sewage disposal
Technical field.
Background technology
With the adjustment continued to develop with the structure of agricultural production of China's economy, scale animal and poultry cultivation industry quickly grows, and
As the mainstay in Rural Economic Development, domestic substantial amounts of scale, intensive fowl and livestock farm are emerged in multitude
Out.More than ten years since two thousand, the scale of domestic livestock culture is all increased in the speed with 5% every year.Herding
The development of aquaculture industry, on the one hand lifts the yield of meat eggs, greatly promotes the daily life level of resident.And on the other hand,
A large amount of excretas, discarded object that scale livestock culture brings etc., ecological environment is difficult to be dissolved in time in the short time, very great Cheng
By the quality of life of the severe contamination people on degree.
At present, China produces about 4,500,000,000 tons of feces of livestock and poultry every year, and Pollution from livestock and poultry has been dirty after industrial pollution, life
The third-largest pollution sources after dye, and the treatment of livestock breeding wastewater is then emphasis therein.Plant's layout is unreasonable, adds
Miscarriage, causes the heavy metal element (Cd, Hg, Cu, Pb etc.) in excrement dirt fowl and animal excrement waste water, enters in rivers and lakes, leads
Heavy metal severe overweight in water is caused, it is difficult to recover, the life security of people has been had a strong impact on, in how removing livestock culture waste water
Heavy metal has turned into the hot issue of social concerns.
Treatment feces of livestock and poultry method has at present：Also field pattern and Natural treatment mode, and these patterns are required for livestock and poultry
Excrement is stacked, and a large amount of waste water can be produced in stacking process, and waste water is a kind of organic wastewater of content of beary metal high, is had
The characteristic feature of high-pollution load and comprehensive pollution.At this stage, generally use is filtered, dammed, precipitating in the industry, physics and chemistry are inhaled
The methods such as attached, chemical breakdown, biological oxidation and absorption process feces of livestock and poultry, and the method is applied to away from city, temperature is higher, soil
The broad livestock and poultry cultivation area in ground.Because dwell time of sewage is long, floor space is big, and land seizure amount is larger, while treatment effect
Easily influenceed by seasonal temperature change, caused processing cost extremely Ao Gui.And the precipitation method need excessively to add phosphate, water outlet contains
Phosphorus thus be difficult to dispose, garbage, waste-water processing cost can be increased.Chemisorbed be by ion exchange resin to diafiltration in it is organic
Thing, heavy metal etc. carry out adsorption treatment, but repeatedly ion exchange resin stability decline after regeneration, and Adsorption of Heavy Metals effect is difficult to
Ensure, production practices operation is highly difficult.
The content of the invention
It is an object of the invention to provide a kind of handling process is simple, high treating effect, runtime stabilization, investment and transport
Row cost is relatively low, the livestock and poultry leachate processing method of the obvious content of beary metal high of heavy metals removal effect.
Technical scheme：A kind of livestock and poultry leachate processing method of content of beary metal high, comprises the following steps：
(1) Wastewater Pretreatment：Prepare wastewater pretreating agent first, i.e., divide calculating by weight, by 3~5 parts of activated carbon with
And 3~4 parts of 1~3 part of discarded industrial dilute hydrochloric acids for adding mass concentration to be 20% after being well mixed of mushroom bran come control ph, pH value
Then control will carry out sand filtration, the macromolecular particle in retention waste water 5.5~7.0 in wastewater pretreating agent feeding sand filtration filling
Thing, colloid and suspension, its clearance is up to 60~80%；
(2) multimedium dirty removing processing：First discarded calcium carbide is leached with the discarded industrial dilute hydrochloric acid that mass concentration is 60%
Slag is obtained containing CaCl2Mass concentration is the calcium chloride solution of 3.0~3.5M, wherein the solid-liquid weight of carbide slag and industrial dilute hydrochloric acid
Amount is than being 1:4.0~4.5.
(3) energization depth dirty removing processing：By in the waste water feeding reactive tank after sand filtration, then to pouring into 5~10 parts in waste water
Calcium chloride solution, then electrolytic descaling treatment is carried out to the mixed solution of waste water and calcium chloride solution, promote calcium ion to become and survive
Jump state accelerates reaction to form precipitation with carbonate, and carbonate absorption can be covered in into catholyte pole plate after the electrolysis that is powered
Surface, in 15~20min, the precipitation clearance of final waste water is up to 85~90% for electrolysis time control；
(4) heavy metal adsorption treatment：By in the waste water feeding reactor after electrolytic descaling, adjusted with lime under agitation
The pH value for saving waste water is 8.0~8.5, and mixing time is that the heavy metal ion that 3~5min allows in waste water is fast under the conditions of oxidation state
Speed is converted into the flocculate of indissoluble, then by solid-to-liquid ratio 3:10000~5:1000 ratio is to the discarded rock phosphate in powder of dispensing in waste water
With 0.5~1.0 part of the mixture of clay mineral, 5~8min of mixing time under alkaline environment makes the heavy metal ion in water body
Exchange rapid with the cl anion in mineral interlayer structure and fixed, the heavy metal finally allowed in waste water is inhaled by clay mineral
It is attached；
(5) flocculation-biofilm filtration treatment：By the waste water low rate mixing 15min after adsorption treatment, kinetic parameter GT values
﹤ 2000；In the dynamic flocculation treatment to atmosphere opening, the CO in air2Be dissolved in it is aquatic be shaped as carbonate-type structure, then
Add and contain Al2O3Mass concentration is the sodium aluminate solution of 1~1.5M, forms hydroxide flco, the mutual coherent packet of these micro-floccules
Wrap up in, it is agitated after gained residence time 1.5 hour of the mixing liquid in settling tank, given birth in feeding membrane bioreactor
Change reaction, oxidation reaction is carried out through blast aeration, the waste strength in pond controls the ultrafiltration dope after 10~15g/L, treatment
It is back to nanofiltration treatment.
In the above method, the size 6~8cm long of the electrolytic pole board described in step (3), 3~5cm wide, thickness is 0.5~
1cm。
In the above method, discarded rock phosphate in powder and clay mineral composition lenticular the cavernous macrovoid 20 described in step (4)
~100nm, is conducive to heavy metal ion to be exchanged rapidly with the cl anion in mineral interlayer structure and reach removing heavy metals
Effect, improves heavy metal in waste water clearance 5~8%.
In the above method, the biomembrane described in step (5) be by the aerobic bacteria of highly dense, fungi, protozoan and
The plate film assembly of algae composition.
Compared with prior art, the advantage of the invention is that：The present invention is discarded using discarded industrial dilute hydrochloric acid, edible mushroom
Thing-mushroom bran, discarded carbide slag, discarded rock phosphate in powder and clay mineral substep remove different pollutants in livestock and poultry percolate,
Not only reduce production cost, and treatment material environment friendly non-secondary pollution, obvious processing effect.Therefore, method of the present invention behaviour
Make simple, easy to spread, discard rock phosphate in powder and clay mineral composition lenticular cavernous 20~100nm of macrovoid, be conducive to weight
Exchange rapid with the cl anion in mineral interlayer structure of metal ion and reach the effect of removing heavy metals.With conventional method phase
Than, the clearance 5~8% of macromolecular particle thing, colloid and suspension is improve, the precipitation clearance 3~5% of waste water is improved,
Heavy metal in waste water clearance 5~8% is improved, production cost 20% is reduced, shortens away the process time more than 10 days, be capable of achieving
The scale of poultry waste water and industrialization production.
Specific embodiment
In order that the object of the invention, technical scheme and advantage are clearer, the present invention is made into one with reference to embodiment
The detailed description of step.
Embodiment 1
A kind of livestock and poultry leachate processing method of content of beary metal high of the invention, comprises the following steps：
(1) Wastewater Pretreatment：Wastewater pretreating agent is prepared first, i.e., divides calculating by weight, by 3 parts of activated carbon and bacterium
1 part of discarded industrial dilute hydrochloric acid for adding mass concentration to be 20% after 3 parts of chaff is well mixed carrys out control ph, and pH value is controlled 5.5,
Then sand filtration will be carried out in wastewater pretreating agent feeding sand filtration filling, macromolecular particle thing, colloid and suspension in retention waste water,
Its clearance is up to 60%；
(2) multimedium dirty removing processing：First discarded calcium carbide is leached with the discarded industrial dilute hydrochloric acid that mass concentration is 60%
Slag is obtained containing CaCl2Mass concentration is the calcium chloride solution of 3.0M, wherein the solid-liquid weight ratio of carbide slag and industrial dilute hydrochloric acid
It is 1:4.0.
(3) energization depth dirty removing processing：By in the waste water feeding reactive tank after sand filtration, then to pouring into 5 parts of chlorine in waste water
Change calcium solution, then electrolytic descaling treatment is carried out with the mixed solution of calcium chloride solution to waste water, promote calcium ion to become to enliven shape
State accelerates reaction to form precipitation with carbonate, and carbonate absorption can be covered in into catholyte pole plate table after the electrolysis that is powered
Face, the size 6cm long of described electrolytic pole board, width 3cm, thickness are 0.5cm, and electrolysis time is controlled in 15min, final waste water
Precipitate clearance up to 85%；
(4) heavy metal adsorption treatment：By in the waste water feeding reactor after electrolytic descaling, adjusted with lime under agitation
The pH value for saving waste water is 8.0, and the heavy metal ion that mixing time allows in waste water for 3min is quickly converted under the conditions of oxidation state
The flocculate of indissoluble, then by solid-to-liquid ratio 3:10000 ratio is to the mixing that discarded rock phosphate in powder and clay mineral are delivered in waste water
0.5 part of thing, the mixing time 5min under alkaline environment, make the chlorine in heavy metal ion in water body and mineral interlayer structure cloudy from
Sub rapid exchange and fixed, the heavy metal finally allowed in waste water is adsorbed by clay mineral；Described discarded rock phosphate in powder and clay
Mineral composition lenticular cavernous macrovoid 20nm.
(5) flocculation-biofilm filtration treatment：Described biomembrane is by aerobic bacteria, fungi, the protozoan of highly dense
And the plate film assembly of algae composition.By the waste water low rate mixing 15min after adsorption treatment, kinetic parameter GT values ﹤ 2000；
In the dynamic flocculation treatment to atmosphere opening, the CO in air2Be dissolved in it is aquatic be shaped as carbonate-type structure, be subsequently adding and contain
Al2O3Mass concentration is the sodium aluminate solution of 1M, forms hydroxide flco, and these micro-floccules mutually condense parcel, it is agitated after
1.5 hours residence times in settling tank of the mixing liquid of gained, biochemical reaction is carried out in feeding membrane bioreactor, through drum
Wind aeration carries out oxidation reaction, and the waste strength in pond controls the ultrafiltration dope after 10g/L, treatment to be back to nanofiltration treatment.
It is proven, the method for the present invention is simple to operate, easy to spread, compared with conventional method, improves macromolecular
The clearance 5% of particulate matter, colloid and suspension, improves the precipitation clearance 3% of waste water, improves heavy metal in waste water clearance
5%, production cost 20% is reduced, shorten away the process time more than 10 days, it is capable of achieving the scale and industrialization of poultry waste water
Production.
Embodiment 2
A kind of livestock and poultry leachate processing method of content of beary metal high of the invention, comprises the following steps：
(1) Wastewater Pretreatment：Wastewater pretreating agent is prepared first, i.e., divides calculating by weight, by 4 parts of activated carbon and bacterium
2 parts of discarded industrial dilute hydrochloric acid for adding mass concentration to be 20% after 3.5 parts of chaff is well mixed carrys out control ph, and pH value control exists
6.0, then sand filtration will be carried out in wastewater pretreating agent feeding sand filtration filling, retain the macromolecular particle thing in waste water, colloid and hang
Float, its clearance is up to 70%；
(2) multimedium dirty removing processing：First discarded calcium carbide is leached with the discarded industrial dilute hydrochloric acid that mass concentration is 60%
Slag is obtained containing CaCl2Mass concentration is the calcium chloride solution of 3.2M, wherein the solid-liquid weight ratio of carbide slag and industrial dilute hydrochloric acid
It is 1:4.2.
(3) energization depth dirty removing processing：By in the waste water feeding reactive tank after sand filtration, then to pouring into 8 parts of chlorine in waste water
Change calcium solution, then electrolytic descaling treatment is carried out with the mixed solution of calcium chloride solution to waste water, promote calcium ion to become to enliven shape
State accelerates reaction to form precipitation with carbonate, and carbonate absorption can be covered in into catholyte pole plate table after the electrolysis that is powered
Face, the size 7cm long of described electrolytic pole board, width 4cm, thickness are 0.8cm, and electrolysis time is controlled in 18min, final waste water
Precipitate clearance up to 88%；
(4) heavy metal adsorption treatment：By in the waste water feeding reactor after electrolytic descaling, adjusted with lime under agitation
The pH value for saving waste water is 8.3, and the heavy metal ion that mixing time allows in waste water for 4min is quickly converted under the conditions of oxidation state
The flocculate of indissoluble, then by solid-to-liquid ratio 4:5000 ratio is to the mixture that discarded rock phosphate in powder and clay mineral are delivered in waste water
0.8 part, the mixing time 6min under alkaline environment makes the cl anion in the heavy metal ion and mineral interlayer structure in water body
Rapid exchange and fixed, the heavy metal finally allowed in waste water is adsorbed by clay mineral；Described discarded rock phosphate in powder and clay ore deposit
Thing composition lenticular cavernous macrovoid 60nm.
(5) flocculation-biofilm filtration treatment：Described biomembrane is by aerobic bacteria, fungi, the protozoan of highly dense
And the plate film assembly of algae composition.By the waste water low rate mixing 15min after adsorption treatment, kinetic parameter GT values ﹤ 2000；
In the dynamic flocculation treatment to atmosphere opening, the CO in air2Be dissolved in it is aquatic be shaped as carbonate-type structure, be subsequently adding and contain
Al2O3Mass concentration is the sodium aluminate solution of 1.2M, forms hydroxide flco, and these micro-floccules mutually condense parcel, agitated
Afterwards residence time 1.5 hour of the mixing liquid of gained in settling tank, biochemical reaction is carried out in feeding membrane bioreactor, passed through
Blast aeration carries out oxidation reaction, and the waste strength in pond controls the ultrafiltration dope after 12g/L, treatment to be back at nanofiltration
Reason.
It is proven, the method for the present invention is simple to operate, easy to spread, compared with conventional method, improves macromolecular
The clearance 6% of particulate matter, colloid and suspension, improves the precipitation clearance 4% of waste water, improves heavy metal in waste water clearance
6%, production cost 20% is reduced, shorten away the process time more than 10 days, it is capable of achieving the scale and industrialization of poultry waste water
Production.
Embodiment 3
A kind of livestock and poultry leachate processing method of content of beary metal high of the invention, comprises the following steps：
(1) Wastewater Pretreatment：Wastewater pretreating agent is prepared first, i.e., divides calculating by weight, by 5 parts of activated carbon and bacterium
3 parts of discarded industrial dilute hydrochloric acid for adding mass concentration to be 20% after 4 parts of chaff is well mixed carrys out control ph, and pH value is controlled 7.0,
Then sand filtration will be carried out in wastewater pretreating agent feeding sand filtration filling, macromolecular particle thing, colloid and suspension in retention waste water,
Its clearance is up to 80%；
(2) multimedium dirty removing processing：First discarded calcium carbide is leached with the discarded industrial dilute hydrochloric acid that mass concentration is 60%
Slag is obtained containing CaCl2Mass concentration is the calcium chloride solution of 3.5M, wherein the solid-liquid weight ratio of carbide slag and industrial dilute hydrochloric acid
It is 1:4.5.
(3) energization depth dirty removing processing：By in the waste water feeding reactive tank after sand filtration, then to pouring into 10 parts of chlorine in waste water
Change calcium solution, then electrolytic descaling treatment is carried out with the mixed solution of calcium chloride solution to waste water, promote calcium ion to become to enliven shape
State accelerates reaction to form precipitation with carbonate, and carbonate absorption can be covered in into catholyte pole plate table after the electrolysis that is powered
Face, the size 8cm long of described electrolytic pole board, width 5cm, thickness are 1cm, electrolysis time control in 20min, final waste water it is heavy
Shallow lake clearance is up to 90%；
(4) heavy metal adsorption treatment：By in the waste water feeding reactor after electrolytic descaling, adjusted with lime under agitation
The pH value for saving waste water is 8.5, and the heavy metal ion that mixing time allows in waste water for 5min is quickly converted under the conditions of oxidation state
The flocculate of indissoluble, then by solid-to-liquid ratio 5:1000 ratio is to the mixture that discarded rock phosphate in powder and clay mineral are delivered in waste water
1.0 parts, the mixing time 8min under alkaline environment makes the cl anion in the heavy metal ion and mineral interlayer structure in water body
Rapid exchange and fixed, the heavy metal finally allowed in waste water is adsorbed by clay mineral；Described discarded rock phosphate in powder and clay ore deposit
Thing composition lenticular cavernous macrovoid 100nm.
(5) flocculation-biofilm filtration treatment：Described biomembrane is by aerobic bacteria, fungi, the protozoan of highly dense
And the plate film assembly of algae composition.By the waste water low rate mixing 15min after adsorption treatment, kinetic parameter GT values ﹤ 2000；
In the dynamic flocculation treatment to atmosphere opening, the CO in air2Be dissolved in it is aquatic be shaped as carbonate-type structure, be subsequently adding and contain
Al2O3Mass concentration is the sodium aluminate solution of 1.5M, forms hydroxide flco, and these micro-floccules mutually condense parcel, agitated
Afterwards residence time 1.5 hour of the mixing liquid of gained in settling tank, biochemical reaction is carried out in feeding membrane bioreactor, passed through
Blast aeration carries out oxidation reaction, and the waste strength in pond controls the ultrafiltration dope after 15g/L, treatment to be back at nanofiltration
Reason.
It is proven, the method for the present invention is simple to operate, easy to spread, compared with conventional method, improves macromolecular
The clearance 8% of particulate matter, colloid and suspension, improves the precipitation clearance 5% of waste water, improves heavy metal in waste water clearance
8%, production cost 20% is reduced, shorten away the process time more than 10 days, it is capable of achieving the scale and industrialization of poultry waste water
Production.
Claims (4)
1. a kind of livestock and poultry leachate processing method of content of beary metal high, it is characterised in that comprise the following steps：
（1）Wastewater Pretreatment：Wastewater pretreating agent is prepared first, i.e., divides calculating by weight, by 3~5 parts of activated carbon and bacterium
1~3 part of discarded industrial dilute hydrochloric acid for adding mass concentration to be 20% after 3~4 parts of chaff is well mixed comes control ph, pH value control
5.5~7.0, then sand filtration, macromolecular particle thing, glue in retention waste water will be carried out in wastewater pretreating agent feeding sand filtration filling
Body and suspension, its clearance is up to 60~80%；
（2）Multimedium dirty removing processing：Discarded carbide slag is leached with the discarded industrial dilute hydrochloric acid that mass concentration is 60% first to obtain
CaCl must be contained2Mass concentration is the calcium chloride solution of 3.0~3.5M, and wherein carbide slag is with the solid-liquid weight ratio of industrial dilute hydrochloric acid
1:4.0~4.5.
（3）Energization depth dirty removing processing：By in the waste water feeding reactive tank after sand filtration, then to pouring into 5~10 parts of chlorine in waste water
Change calcium solution, then electrolytic descaling treatment is carried out with the mixed solution of calcium chloride solution to waste water, promote calcium ion to become to enliven shape
State accelerates reaction to form precipitation with carbonate, and carbonate absorption can be covered in into catholyte pole plate table after the electrolysis that is powered
Face, in 15~20min, the precipitation clearance of final waste water is up to 85~90% for electrolysis time control；
（4）Heavy metal adsorption treatment：By in the waste water feeding reactor after electrolytic descaling, adjust useless with lime under agitation
The pH value of water is 8.0~8.5, and mixing time is that the heavy metal ion that 3~5min allows in waste water turns rapidly under the conditions of oxidation state
The flocculate of indissoluble is turned to, then by solid-to-liquid ratio 3:10000~5:1000 ratio is to the discarded rock phosphate in powder of dispensing in waste water and sticks
0.5~1.0 part of the mixture of native mineral, 5~8min of mixing time under alkaline environment makes the heavy metal ion and ore deposit in water body
Cl anion in thing interlayer structure is exchanged rapidly and fixed, and the heavy metal finally allowed in waste water is adsorbed by clay mineral；
（5）The treatment of flocculation-biofilm filtration：By the waste water low rate mixing 15min after adsorption treatment, kinetic parameter GT values ﹤
2000；In the dynamic flocculation treatment to atmosphere opening, the CO in air2Be dissolved in it is aquatic be shaped as carbonate-type structure, then
Add and contain Al2O3Mass concentration is the sodium aluminate solution of 1~1.5M, forms hydroxide flco, the mutual coherent packet of these micro-floccules
Wrap up in, it is agitated after gained residence time 1.5 hour of the mixing liquid in settling tank, given birth in feeding membrane bioreactor
Change reaction, oxidation reaction is carried out through blast aeration, the waste strength in pond controls the ultrafiltration dope after 10~15g/L, treatment
It is back to nanofiltration treatment.
2. the livestock and poultry leachate processing method of a kind of content of beary metal high according to claim 1, it is characterised in that：Step
（3）Size 6~8 cm long of described electrolytic pole board, 3~5cm wide, thickness are 0.5~1cm.
3. the livestock and poultry leachate processing method of a kind of content of beary metal high according to claim 1, it is characterised in that：Step
（4）Described discarded rock phosphate in powder and clay mineral composition lenticular cavernous 20~100nm of macrovoid, are conducive to heavy metal ion
Exchanges rapid with the cl anion in mineral interlayer structure and reach the effect of removing heavy metals, improve heavy metal in waste water and remove
Rate 5~8%.
4. the livestock and poultry leachate processing method of a kind of content of beary metal high according to claim 1, it is characterised in that：Step
（5）The plate film assembly that described biomembrane is made up of the aerobic bacteria of highly dense, fungi, protozoan and algae.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083547A (en) * | 2017-12-29 | 2018-05-29 | 五河县智凯环保科技有限公司 | A kind of method of wastewater treatment |
| CN113415959A (en) * | 2021-08-25 | 2021-09-21 | 湖南江山春锦科技有限公司 | Modular acid mine wastewater treatment equipment |
| CN116854218A (en) * | 2023-07-17 | 2023-10-10 | 青岛理工大学 | Method and device for film forming, mineralizing, fixing, separating and recycling of heavy metal ions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108083547A (en) * | 2017-12-29 | 2018-05-29 | 五河县智凯环保科技有限公司 | A kind of method of wastewater treatment |
| CN113415959A (en) * | 2021-08-25 | 2021-09-21 | 湖南江山春锦科技有限公司 | Modular acid mine wastewater treatment equipment |
| CN113415959B (en) * | 2021-08-25 | 2021-12-31 | 湖南江山春锦科技有限公司 | Modular acid mine wastewater treatment equipment |
| CN116854218A (en) * | 2023-07-17 | 2023-10-10 | 青岛理工大学 | Method and device for film forming, mineralizing, fixing, separating and recycling of heavy metal ions |
| CN116854218B (en) * | 2023-07-17 | 2024-01-23 | 青岛理工大学 | Method and device for film forming, mineralizing, fixing, separating and recycling of heavy metal ions |
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