CN109354314A - A kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process - Google Patents
A kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process Download PDFInfo
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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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- 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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- 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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- C02F3/00—Biological treatment of water, waste water, or sewage
Abstract
The present invention provides a kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, it is adjusted including raw water, iron carbon-interior Fenton processing, guanite processing, five A2O processing, Fenton advanced treating steps, is separately added into the first flocculant and the second flocculant in iron carbon-interior Fenton processing step and Fenton advanced treating step；The present invention uses main processing means of the low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process as low-carbon-source high ammonia nitrogen and high phosphorus waste water, substantially increase biochemical treatment efficiency, it solves the problems, such as processing low-carbon-source high ammonia nitrogen and high organism P wastewater qualified discharge, there is preferable Social benefit and economic benefit；The combination of interior Fenton, iron-carbon micro-electrolysis and Fenton improves Fenton effect, reduces operating cost and operation element amount.
Description
Technical field
The present invention relates to technical field of waste water processing, combine more particularly to a kind of low-carbon-source high ammonia nitrogen and high organism P wastewater
Formula biological bed treatment process.
Background technique
The discharge such as common industrial wastewater, such as dyeing, steel and iron industry, petroleum refining industry, pharmaceuticals industry, chemical fertilizer industry
Waste water, water-quality constituents is complicated, and ammonia nitrogen, total phosphorus content are high, and biodegradability is poor, and the high ammonia nitrogen of low-carbon-source (being greater than 500mg/L) is high
The processing difficulty of organism P wastewater (30mg/L~150mg/L) is bigger, more greatly and influences bigger on the pollution of environment.City rule
Treatment process cannot be run at standard completely, and operating cost is larger, be handled at present for low-carbon-source high ammonia nitrogen and high organism P wastewater
The common removal of ammonia and nitrogen total phosphorus method of method mainly has biochemical A2O method, ammonia aeration (air stripping and steam stripping) method, break chlorine
Change method and magnesium ammonium phosphate sediment (MAP) etc..These treatment process have their own characteristics each, but also respectively have certain limitation.
Chemical precipitation method (the MAP precipitation method) removal efficiency is preferable, and not by temperature limiting, easy to operate, forms phosphoric acid
The precipitating sludge of ammonium magnesium can be used as compound fertilizer, waste utilization be realized, to offset a part of cost；As can with some generation phosphorus
The industrial enterprise of hydrochlorate waste water and the cartel for generating bittern, can save medicament expense, be conducive to large-scale application, but chemistry
The precipitation method after the ammonia nitrogen in waste water reaches a certain concentration, then put into pharmaceutical quantities, then go due to being limited by ammonium magnesium phosphate solubility product
Except effect is unobvious, and input cost greatly increases, and the sludge of generation is more, and processing cost is high.
The ammonia removal efficiency of break point chlorination method is high, and removal rate can reach 99% or more, and effect stability, investment goods are few, reaction
Speed is fast, thorough.But the dosage of break point chlorination is big, and processing cost is high, and by-product chloramines and chlorinatedorganic will cause
Secondary pollution is generally applicable in the waste water of low ammonia nitrogen concentration (< 50mg/L), is chiefly used in the advanced treating of ammonia nitrogen waste water.
Ammonia aeration method removal ammonia nitrogen effect is preferable, easy to operate, easily controllable, is suitable for ammonia nitrogen and is higher than 500ppm high ammonia nitrogen
The deamination of waste water is handled, and is most common high ammonia-nitrogen wastewater preconditioning technique.This mode is the problem is that adding alkali
During adjusting pH is precipitated, while a large amount of ammonia can be generated, this can bring serious secondary pollution problem, and blow
The frequent fouling of Tuo Tanei, ammonia nitrogen removal low efficiency when low temperature, so that the use of traditional ammonia aeration technology has certain limitation
Property.
When with biochemical A2O treatment process, the relative concentration of organic carbon is to consider important factor, keeps best carbon nitrogen
Than being one of biological treatment key successful factors, if the too low ammonia nitrogen that will lead to of the ratio is thoroughly deviate from；If the ratio is excessively high, need
Supplement nitrogen source.Discharge standard cannot be reached for the direct biochemistry of low-carbon-source high ammonia nitrogen and high organism P wastewater.
Above-mentioned processing mode is difficult to adapt to comprehensively, and the combination using physico-chemical process, chemical method and bioanalysis reaches emission request
It is proper.
Summary of the invention
Present invention aim to provide a kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed processing work
Skill is handled using multistage-combination, reaches discharge standard.
To achieve the above object, the present invention is achieved by the following scheme:
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, in iron carbon-interior Fenton processing step and Fenton depth
Processing step is separately added into the first flocculant and the second flocculant；Wherein, first flocculant is prepared by the following method
Arrive: in parts by weight, carrying out microwave activation processing after 1 part of expanded vermiculite and the mixing of 2~3 parts of diatomite, then with 2~3 parts
It calcines compound after yttrium oxide and the mixing of iron oxide composite nanometer particle, obtains compound, finally utilize 0.5~0.8 part of polyethylene
Pyrrolidones and 0.5~0.8 part of neopelex to compound functionalization to obtain the final product；Second flocculant is by following
Made of the component of parts by weight: 100 parts of bodied ferric sulfate, 30~40 parts of middle-molecular-weihydroxyethyl polyacrylamide (200~4,000,000), alkene
20~30 parts of propyl polyethylene glycol, 120~130 parts of diallyl dimethyl ammoniumchloride.
Preferably, the specific method that microwave is activated is: their total weights 4~5 are added in expanded vermiculite and diatomite
In deionized water again, it is transferred to 800~1000W in micro-wave oven and handles 2~3 hours, be centrifuged, 120~130 DEG C of dryings 2~3 are small
When.
Preferably, calcining compound specific method is: material mixing after in 300~350 DEG C calcine 5~10 minutes, then
550~600 DEG C are warming up to 20~25 DEG C/min of heating rate, and heat preservation calcining 20~30 minutes at such a temperature, while hot
The quenching that cools down in the ethanol water of volumetric concentration 20~30% is placed it in, filtering, filter residue is with 3~5 DEG C/min of heating speed
Rate is warming up to 400~500 DEG C, and heat preservation calcining 30~40 minutes at such a temperature, and cooled to room temperature crushes, grinding, mistake
200~300 meshes.
Preferably, the specific method of functionalization is: polyvinylpyrrolidone and neopelex are added 4
In the distilled water of~6 times of total weights, then stirring and dissolving is heated with stirring to 70~80 DEG C, and compound is added, stirs under nitrogen atmosphere
Mix 3~4 hours, filter, washing, it is dry to get.
It is further preferred that dry process conditions are as follows: 60~70 DEG C drying 12~18 hours.
Preferably, the expanded vermiculite is to heat Crude vermiculite 200~250 minutes in 400~500 DEG C, natural cooling
And it obtains.
Preferably, the yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: with methanol
For reaction dissolvent, iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring to dissolving, add methyl formate and
Acetylacetone,2,4-pentanedione yttrium, stirring to formed homogeneous transparent solution, be transferred in reaction kettle, under the conditions of 130~150 DEG C be heat-treated 50~
60 minutes, centrifugation or filtering, washing, drying were calcined, and natural cooling to obtain the final product.
It is further preferred that iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and dispersion
The mole of agent is followed successively by 0.05~0.06mol, 3~4mol, 3~4mol, 0.02~0.03mol, 0.01~0.02mol.
It is further preferred that the dispersing agent is selected from cetyl trimethylammonium bromide, polyethylene glycol or polyvinyl pyrrole
Any one of alkanone.
It is further preferred that the specific method of washing is: benefit is washed with deionized 2~3 times；Dry process conditions
Be: 70~80 DEG C drying 10~12 hours；The process conditions of calcining are: being warming up to 900 with 50~55 DEG C/min of heating rate
It~1000 DEG C, is kept for temperature calcination 5~6 hours.
Preferably, second flocculant the preparation method is as follows: bodied ferric sulfate, the middle-molecular-weihydroxyethyl polypropylene of formula ratio
Amide is uniformly mixed with allyl polyglycol, is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, is surpassed
Sonication 15~20 minutes to get.
Preferably, raw water adjusting is that waste water lifting to conditioning tank is adjusted pH=5~6.
Preferably, iron carbon-interior Fenton processing step includes:
(1) pH=3~4 are adjusted using the sulfuric acid solution of mass concentration 10~25%, while mass concentration 30% is added
Aqueous hydrogen peroxide solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) iron carbon filler is added, packing ratio is 40% (weight), and aeration quantity 60L/min the reaction time 5 hours, occurs
It is as follows in electrochemical process:
Anode (Fe): Fe-2e → Fe2+E(Fe/Fe2+)=0.44V
Cathode (C): 2H++2e→H2E(H+/H2)=0.00V
Following reaction occurs when aeration:
O2+4H++4e→2H2O E(O2)=1.23V
O2+2H2O+4e→4OH-E(O2/OH-)=0.41V
Fe2++O2+4H+→2H2O+Fe3+
(3) pH to 7.5~8 is adjusted using the sodium hydroxide solution of mass concentration 20~30%, the first flocculant is added, sunk
It precipitates 2~3 hours in shallow lake pond；The first flocculant of 1~1.2g is added in every cubic meter of water.
Preferably, the specific method of guanite processing is: magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes,
Sedimentation basin precipitates 20~30 minutes；The molar ratio of magnesium contained therein, nitrogen and phosphorus is 1.2:1:1.2, and nitrogen is by the ammonia content in water body
It determines.
Preferably, the specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration is stripped back
Stream, return sludge ratio are controlled at 0.5~1 times of flow of inlet water.
Preferably, the specific method of Fenton advanced treating is: Fenton reagent and the second flocculant is added, in every cubic meter of water
0.2~0.3g Fenton reagent and the second flocculant of 0.3~0.4g is added, the reaction time is 2~3 hours, is precipitated after reaction
It precipitates 2~3 hours in pond.
The beneficial effects of the present invention are:
The present invention is using low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process as the high ammonia of low-carbon-source
The main processing means of nitrogen high phosphorus waste water, substantially increase biochemical treatment efficiency, and it is organic to solve processing low-carbon-source high ammonia nitrogen and high
Phosphorus discharged wastewater met the national standard problem has preferable Social benefit and economic benefit；The knot of interior Fenton, iron-carbon micro-electrolysis and Fenton
It closes, improves Fenton effect, reduce operating cost and operation element amount.
After raw water water quantity and quality is adjusted, organic nitrogen is converted to by inorganic nitrogen by iron carbon-interior Fenton processing, is biochemical system
Offer condition, then carry out guanite processing, in water inorganic nitrogen formed precipitate, by the ammonia nitrogen removal in water, then through A2O at
Reason, i.e. anaerobic-anoxic-support well technique, it is improved after technique can effectively remove COD, ammonia nitrogen, total phosphorus, it is deep finally to carry out Fenton
Degree processing, belongs to the stage of checking on, to guarantee that stable water outlet is up to standard.
In iron carbon-interior Fenton processing step, pH value is 5.7 or so after reaction, is generally existed to remove in waste water
Fe2+And Fe3+It needs that alkali is added to be adjusted to alkalescent for pH value is discharged.Fe in reaction2+Aoxidize the Fe generated3+Gradually hydrolysis generates poly-
Right big Fe (OH)3Colloid flocculant can be adsorbed effectively, agglomerate suspended matter and heavy metal ion in water, and adsorbed
Performance is significantly larger than general Fe (OH)3, thus clean-up effect of the enhancing to waste water.Wherein core process is interior Fenton and improvement
Biochemical system afterwards, for the Iron source in interior Fenton in light electrolysis, reduce medicament adds work and correlative charges, belongs to
Modified form Fenton's reaction.Therefore, the selection of iron carbon filler and the cooperation of biochemical system are particularly important.
Guanite processing generates magnesium ammonium phosphate sediment, is precipitated in sedimentation basin.Ammonia nitrogen can effectively be deviate from, improve carbon nitrogen
Than providing condition for subsequent biochemical.Premenstruum (premenstrua), treated water, good biodegradability, into A2O technique, i.e. anaerobic-anoxic-
It is good to support processing, reach good treatment effect.
First flocculant is by expanded vermiculite, diatomite, yttrium oxide and iron oxide composite nanometer particle, polyvinylpyrrolidine
Ketone, neopelex are made, wherein expanded vermiculite and diatomite inherently have cellular structure, at microwave activation
After reason, compound with yttrium oxide and iron oxide composite nanometer particle, the surface of compound and internal gutter introduce nano material, into
One step increases surfactant property, increases adsorption capacity；The introducing of polyvinylpyrrolidone and neopelex, makes it
Chemical complexing can occur with the heavy metal etc. in waste water to react, and there is preferable flocculation ability.
Second flocculant is by bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide, allyl polyglycol, polydiene propyl
Alkyl dimethyl ammonium chloride is made, and can remove the remaining further flocculation of system.
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process of the invention not only to ammonia nitrogen have compared with
High removal rate, and have higher removal rate to COD, total phosphorus.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=5 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=3 is adjusted using the sulfuric acid solution of mass concentration 10%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 7.5 is adjusted using the sodium hydroxide solution of mass concentration 20%, the first flocculant is added, sedimentation basin is heavy
It forms sediment 2 hours；The first flocculant of 1g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 2 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, calcines compound after then mixing with 2 parts of yttrium oxides and iron oxide composite nanometer particle, is answered
Object is closed, is finally to compound functionalization using 0.5 part of polyvinylpyrrolidone and 0.5 part of neopelex
?；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 4 times of their total weights
In water, be transferred in micro-wave oven 800W and handle 2 hours, centrifugation, 120 DEG C drying 2 hours.
Calcining compound specific method is: calcining 5 minutes after material mixing in 300 DEG C, then with 20 DEG C/min of heating
Rate is warming up to 550 DEG C, and heat preservation calcining 20 minutes at such a temperature, and the ethyl alcohol for placing it in volumetric concentration 20% while hot is water-soluble
Cool down quenching in liquid, filtering, and filter residue is warming up to 400 DEG C with 3 DEG C/min of heating rate, and heat preservation calcining 30 at such a temperature
Minute, cooled to room temperature crushes, and 200 meshes are crossed in grinding.
The specific method of functionalization is: 4 times of gross weights are added in polyvinylpyrrolidone and neopelex
In the distilled water of amount, then stirring and dissolving is heated with stirring to 70 DEG C, and compound is added, stirs 3 hours under nitrogen atmosphere, filters,
Washing, it is dry to get.Dry process conditions are as follows: 60 DEG C drying 12 hours.
Expanded vermiculite be by Crude vermiculite in 400 DEG C heat 200 minutes, natural cooling and obtain.
Yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: using methanol as reaction dissolvent,
Iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving,
Stirring is transferred in reaction kettle, is heat-treated 50 minutes under the conditions of 130 DEG C, centrifugation or filtering are washed to the solution for forming homogeneous transparent
It washs, dry, calcining, natural cooling to obtain the final product.Iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and
The mole of dispersing agent is followed successively by 0.05mol, 3mol, 3mol, 0.02mol, 0.01mol.Dispersing agent is cetyl trimethyl
Ammonium bromide.The specific method of washing is: benefit is washed with deionized 2 times；Dry process conditions are: 70 DEG C drying 10 hours；
The process conditions of calcining are: being warming up to 900 DEG C with 50 DEG C/min of heating rate, kept for temperature calcination 5 hours.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 20 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 0.5 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.2g Fenton reagent is added in every cubic meter of water and 0.3g second flocculates
Agent, reaction time are 2 hours, and sedimentation basin precipitates 2 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
30 parts of amine (2,000,000), 20 parts of allyl polyglycol, 120 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide and the allyl of formula ratio
Base polyethylene glycol is uniformly mixed, and is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 15
Minute to get.
Embodiment 2
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=6 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=4 is adjusted using the sulfuric acid solution of mass concentration 25%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 8 is adjusted using the sodium hydroxide solution of mass concentration 30%, the first flocculant, sedimentation basin precipitating 3 is added
Hour；The first flocculant of 1.2g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 3 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, calcines compound after then mixing with 3 parts of yttrium oxides and iron oxide composite nanometer particle, is answered
Object is closed, is finally to compound functionalization using 0.8 part of polyvinylpyrrolidone and 0.8 part of neopelex
?；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 5 times of their total weights
In water, be transferred in micro-wave oven 1000W and handle 3 hours, centrifugation, 130 DEG C drying 3 hours.
Calcining compound specific method is: calcining 10 minutes after material mixing in 350 DEG C, then with 25 DEG C/min of liter
Warm rate is warming up to 600 DEG C, and heat preservation calcining 30 minutes at such a temperature, places it in the ethanol water of volumetric concentration 30% while hot
Cool down quenching in solution, filtering, and filter residue is warming up to 500 DEG C with 5 DEG C/min of heating rate, and heat preservation calcining at such a temperature
40 minutes, cooled to room temperature crushed, and 300 meshes are crossed in grinding.
The specific method of functionalization is: 6 times of gross weights are added in polyvinylpyrrolidone and neopelex
In the distilled water of amount, then stirring and dissolving is heated with stirring to 80 DEG C, and compound is added, stirs 4 hours under nitrogen atmosphere, filters,
Washing, it is dry to get.Dry process conditions are as follows: 70 DEG C drying 18 hours.
Expanded vermiculite be by Crude vermiculite in 500 DEG C heat 250 minutes, natural cooling and obtain.
Yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: using methanol as reaction dissolvent,
Iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving,
Stirring is transferred in reaction kettle, is heat-treated 60 minutes under the conditions of 150 DEG C, centrifugation or filtering are washed to the solution for forming homogeneous transparent
It washs, dry, calcining, natural cooling to obtain the final product.Iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and
The mole of dispersing agent is followed successively by 0.06mol, 4mol, 4mol, 0.03mol, 0.02mol.Dispersing agent is polyethylene glycol.Washing
Specific method is: benefit is washed with deionized 3 times；Dry process conditions are: 80 DEG C drying 12 hours；The process conditions of calcining
It is: is warming up to 1000 DEG C with 55 DEG C/min of heating rate, is kept for temperature calcination 6 hours.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 30 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 1 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.3g Fenton reagent is added in every cubic meter of water and 0.4g second flocculates
Agent, reaction time are 3 hours, and sedimentation basin precipitates 3 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
40 parts of amine (4,000,000), 30 parts of allyl polyglycol, 130 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide and the allyl of formula ratio
Base polyethylene glycol is uniformly mixed, and is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 20
Minute to get.
Embodiment 3
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=5 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=3 is adjusted using the sulfuric acid solution of mass concentration 20%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 8 is adjusted using the sodium hydroxide solution of mass concentration 25%, the first flocculant, sedimentation basin precipitating 2 is added
Hour；The first flocculant of 1.1g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 2 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, calcines compound after then mixing with 3 parts of yttrium oxides and iron oxide composite nanometer particle, is answered
Object is closed, is finally to compound functionalization using 0.6 part of polyvinylpyrrolidone and 0.7 part of neopelex
?；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 4 times of their total weights
In water, be transferred in micro-wave oven 900W and handle 2 hours, centrifugation, 125 DEG C drying 3 hours.
Calcining compound specific method is: calcining 8 minutes after material mixing in 320 DEG C, then with 22 DEG C/min of heating
Rate is warming up to 580 DEG C, and heat preservation calcining 25 minutes at such a temperature, and the ethyl alcohol for placing it in volumetric concentration 25% while hot is water-soluble
Cool down quenching in liquid, filtering, and filter residue is warming up to 450 DEG C with 4 DEG C/min of heating rate, and heat preservation calcining 35 at such a temperature
Minute, cooled to room temperature crushes, and 200 meshes are crossed in grinding.
The specific method of functionalization is: 5 times of gross weights are added in polyvinylpyrrolidone and neopelex
In the distilled water of amount, then stirring and dissolving is heated with stirring to 75 DEG C, and compound is added, stirs 3 hours under nitrogen atmosphere, filters,
Washing, it is dry to get.Dry process conditions are as follows: 65 DEG C drying 15 hours.
Expanded vermiculite be by Crude vermiculite in 450 DEG C heat 220 minutes, natural cooling and obtain.
Yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: using methanol as reaction dissolvent,
Iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving,
Stirring is transferred in reaction kettle, is heat-treated 55 minutes under the conditions of 140 DEG C, centrifugation or filtering are washed to the solution for forming homogeneous transparent
It washs, dry, calcining, natural cooling to obtain the final product.Iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and
The mole of dispersing agent is followed successively by 0.06mol, 4mol, 3mol, 0.03mol, 0.02mol.Dispersing agent is polyvinylpyrrolidone.
The specific method of washing is: benefit is washed with deionized 3 times；Dry process conditions are: 75 DEG C drying 11 hours；The work of calcining
Skill condition is: being warming up to 950 DEG C with 52 DEG C/min of heating rate, is kept for temperature calcination 6 hours.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 25 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 0.8 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.2g Fenton reagent is added in every cubic meter of water and 0.3g second flocculates
Agent, reaction time are 2 hours, and sedimentation basin precipitates 3 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
35 parts of amine (3,000,000), 25 parts of allyl polyglycol, 125 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide and the allyl of formula ratio
Base polyethylene glycol is uniformly mixed, and is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 18
Minute to get.
Comparative example 1
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=5 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=3 is adjusted using the sulfuric acid solution of mass concentration 20%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 8 is adjusted using the sodium hydroxide solution of mass concentration 25%, the first flocculant, sedimentation basin precipitating 2 is added
Hour；The first flocculant of 1.1g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 2 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, then calcines compound, obtains compound, finally utilizes 0.6 part of polyvinylpyrrolidone and 0.7
Part neopelex to compound functionalization to obtain the final product；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 4 times of their total weights
In water, be transferred in micro-wave oven 900W and handle 2 hours, centrifugation, 125 DEG C drying 3 hours.
Calcining compound specific method is: calcining 8 minutes after material mixing in 320 DEG C, then with 22 DEG C/min of heating
Rate is warming up to 580 DEG C, and heat preservation calcining 25 minutes at such a temperature, and the ethyl alcohol for placing it in volumetric concentration 25% while hot is water-soluble
Cool down quenching in liquid, filtering, and filter residue is warming up to 450 DEG C with 4 DEG C/min of heating rate, and heat preservation calcining 35 at such a temperature
Minute, cooled to room temperature crushes, and 200 meshes are crossed in grinding.
The specific method of functionalization is: 5 times of gross weights are added in polyvinylpyrrolidone and neopelex
In the distilled water of amount, then stirring and dissolving is heated with stirring to 75 DEG C, and compound is added, stirs 3 hours under nitrogen atmosphere, filters,
Washing, it is dry to get.Dry process conditions are as follows: 65 DEG C drying 15 hours.
Expanded vermiculite be by Crude vermiculite in 450 DEG C heat 220 minutes, natural cooling and obtain.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 25 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 0.8 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.2g Fenton reagent is added in every cubic meter of water and 0.3g second flocculates
Agent, reaction time are 2 hours, and sedimentation basin precipitates 3 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
35 parts of amine (3,000,000), 25 parts of allyl polyglycol, 125 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide and the allyl of formula ratio
Base polyethylene glycol is uniformly mixed, and is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 18
Minute to get.
Comparative example 2
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=5 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=3 is adjusted using the sulfuric acid solution of mass concentration 20%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 8 is adjusted using the sodium hydroxide solution of mass concentration 25%, the first flocculant, sedimentation basin precipitating 2 is added
Hour；The first flocculant of 1.1g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 2 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, calcines compound after then mixing with 3 parts of yttrium oxides and iron oxide composite nanometer particle, is answered
Close object, finally using 0.6 part of polyvinylpyrrolidone to compound functionalization to obtain the final product；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 4 times of their total weights
In water, be transferred in micro-wave oven 900W and handle 2 hours, centrifugation, 125 DEG C drying 3 hours.
Calcining compound specific method is: calcining 8 minutes after material mixing in 320 DEG C, then with 22 DEG C/min of heating
Rate is warming up to 580 DEG C, and heat preservation calcining 25 minutes at such a temperature, and the ethyl alcohol for placing it in volumetric concentration 25% while hot is water-soluble
Cool down quenching in liquid, filtering, and filter residue is warming up to 450 DEG C with 4 DEG C/min of heating rate, and heat preservation calcining 35 at such a temperature
Minute, cooled to room temperature crushes, and 200 meshes are crossed in grinding.
The specific method of functionalization is: polyvinylpyrrolidone being added in the distilled water of 5 times of total weights, is stirred molten
Solution, is then heated with stirring to 75 DEG C, and compound is added, stir 3 hours under nitrogen atmosphere, filters, washing, drying to get.It is dry
Process conditions are as follows: 65 DEG C drying 15 hours.
Expanded vermiculite be by Crude vermiculite in 450 DEG C heat 220 minutes, natural cooling and obtain.
Yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: using methanol as reaction dissolvent,
Iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving,
Stirring is transferred in reaction kettle, is heat-treated 55 minutes under the conditions of 140 DEG C, centrifugation or filtering are washed to the solution for forming homogeneous transparent
It washs, dry, calcining, natural cooling to obtain the final product.Iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and
The mole of dispersing agent is followed successively by 0.06mol, 4mol, 3mol, 0.03mol, 0.02mol.Dispersing agent is polyvinylpyrrolidone.
The specific method of washing is: benefit is washed with deionized 3 times；Dry process conditions are: 75 DEG C drying 11 hours；The work of calcining
Skill condition is: being warming up to 950 DEG C with 52 DEG C/min of heating rate, is kept for temperature calcination 6 hours.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 25 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 0.8 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.2g Fenton reagent is added in every cubic meter of water and 0.3g second flocculates
Agent, reaction time are 2 hours, and sedimentation basin precipitates 3 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
35 parts of amine (3,000,000), 25 parts of allyl polyglycol, 125 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide and the allyl of formula ratio
Base polyethylene glycol is uniformly mixed, and is poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 18
Minute to get.
Comparative example 3
Low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-interior Fenton
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, specific as follows:
S1. raw water is adjusted
By waste water lifting to conditioning tank, pH=5 is adjusted.
S2. iron carbon-interior Fenton processing
(1) pH=3 is adjusted using the sulfuric acid solution of mass concentration 20%, while the hydrogen peroxide of mass concentration 30% is added
Aqueous solution, by volume, aqueous hydrogen peroxide solution additional amount are the 3 ‰ of total Water；
(2) be added iron carbon filler, packing ratio be 40% (weight), aeration quantity 60L/min, the reaction time 5 hours；
(3) pH to 8 is adjusted using the sodium hydroxide solution of mass concentration 25%, the first flocculant, sedimentation basin precipitating 2 is added
Hour；The first flocculant of 1.1g is added in every cubic meter of water.
What the first flocculant was prepared by the following method: in parts by weight, 1 part of expanded vermiculite and 2 parts of diatomite are mixed
Microwave activation processing is carried out after conjunction, calcines compound after then mixing with 3 parts of yttrium oxides and iron oxide composite nanometer particle, is answered
Object is closed, is finally to compound functionalization using 0.6 part of polyvinylpyrrolidone and 0.7 part of neopelex
?；
The specific method that microwave is activated is: expanded vermiculite and diatomite are added to the deionization of 4 times of their total weights
In water, be transferred in micro-wave oven 900W and handle 2 hours, centrifugation, 125 DEG C drying 3 hours.
Calcining compound specific method is: calcining 8 minutes after material mixing in 320 DEG C, then with 22 DEG C/min of heating
Rate is warming up to 580 DEG C, and heat preservation calcining 25 minutes at such a temperature, and the ethyl alcohol for placing it in volumetric concentration 25% while hot is water-soluble
Cool down quenching in liquid, filtering, and filter residue is warming up to 450 DEG C with 4 DEG C/min of heating rate, and heat preservation calcining 35 at such a temperature
Minute, cooled to room temperature crushes, and 200 meshes are crossed in grinding.
The specific method of functionalization is: 5 times of gross weights are added in polyvinylpyrrolidone and neopelex
In the distilled water of amount, then stirring and dissolving is heated with stirring to 75 DEG C, and compound is added, stirs 3 hours under nitrogen atmosphere, filters,
Washing, it is dry to get.Dry process conditions are as follows: 65 DEG C drying 15 hours.
Expanded vermiculite be by Crude vermiculite in 450 DEG C heat 220 minutes, natural cooling and obtain.
Yttrium oxide and iron oxide composite nanometer particle are prepared by the following method to obtain: using methanol as reaction dissolvent,
Iron chloride and sodium hydroxide is added, under the action of dispersing agent, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving,
Stirring is transferred in reaction kettle, is heat-treated 55 minutes under the conditions of 140 DEG C, centrifugation or filtering are washed to the solution for forming homogeneous transparent
It washs, dry, calcining, natural cooling to obtain the final product.Iron chloride corresponding to every liter of methanol, sodium hydroxide, methyl formate, acetylacetone,2,4-pentanedione yttrium and
The mole of dispersing agent is followed successively by 0.06mol, 4mol, 3mol, 0.03mol, 0.02mol.Dispersing agent is polyvinylpyrrolidone.
The specific method of washing is: benefit is washed with deionized 3 times；Dry process conditions are: 75 DEG C drying 11 hours；The work of calcining
Skill condition is: being warming up to 950 DEG C with 52 DEG C/min of heating rate, is kept for temperature calcination 6 hours.
S3. guanite is handled
Magnesium chloride and disodium hydrogen phosphate are added, is stirred to react 30 minutes, sedimentation basin precipitates 25 minutes；Magnesium contained therein, nitrogen
Molar ratio with phosphorus is 1.2:1:1.2, and nitrogen is determined by the ammonia content in water body.
S4.A2O processing
The specific method of A2O processing is: using suspension type biological bed, mechanical stirring, tubular type aeration, stripping reflux, sludge
Reflux ratio is controlled at 0.8 times of flow of inlet water.
S5. Fenton advanced treating
Fenton reagent and the second flocculant are added, 0.2g Fenton reagent is added in every cubic meter of water and 0.3g second flocculates
Agent, reaction time are 2 hours, and sedimentation basin precipitates 3 hours after reaction.
Second flocculant is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide
35 parts of amine (3,000,000), 125 parts of diallyl dimethyl ammoniumchloride.
Second flocculant the preparation method is as follows: the bodied ferric sulfate of formula ratio, the mixing of middle-molecular-weihydroxyethyl polyacrylamide are equal
It is even, poured into the diallyl dimethyl ammoniumchloride of formula ratio while stirring, supersonic oscillations 18 minutes to get.
Test example
By taking the sanitary sewage of certain sewage treatment plants as an example, influent quality situation: pH=9.6, COD (COD)
Concentration is 1250mg/L, ammonia nitrogen (NH3- N) concentration be 632mg/L, total phosphorus (TP) concentration be 108mg/L, embodiment 1 is respectively adopted
~3 and the technique of comparative example 1~3 handled, investigate the water quality situation of water outlet, the results are shown in Table 1.
1. effluent quality situation of table
As shown in Table 1, the effluent quality of Examples 1 to 3 is good, reaches national reuse standard.In comparative example 1, the first wadding
Yttrium oxide and iron oxide composite nanometer particle are omitted in solidifying agent, and in comparative example 2, the first flocculant omits neopelex,
Second flocculant omits allyl polyglycol in comparative example 3, is obviously deteriorated to the removal rate of COD, ammonia nitrogen and total phosphorus.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process, including raw water is adjusted, iron carbon-Nei Fen
Processing, guanite processing, five A2O processing, Fenton advanced treating steps, which is characterized in that in iron carbon-interior Fenton processing step
Rapid and Fenton advanced treating step is separately added into the first flocculant and the second flocculant；Wherein, first flocculant by with
Lower section method is prepared: in parts by weight, microwave activation processing is carried out after 1 part of expanded vermiculite and 2~3 parts of diatomite mixing,
Then calcine compound after being mixed with 2~3 parts of yttrium oxides and iron oxide composite nanometer particle, obtain compound, finally using 0.5~
0.8 part of polyvinylpyrrolidone and 0.5~0.8 part of neopelex to compound functionalization to obtain the final product；Second wadding
Solidifying agent is made of the component of following parts by weight: 100 parts of bodied ferric sulfate, 30~40 parts of middle-molecular-weihydroxyethyl polyacrylamide, and alkene
20~30 parts of propyl polyethylene glycol, 120~130 parts of diallyl dimethyl ammoniumchloride.
2. technique according to claim 1, which is characterized in that the specific method that microwave is activated is: by expanded vermiculite
It is added with diatomite in the deionized water of 4~5 times of their total weights, it is small to be transferred to 800~1000W processing 2~3 in micro-wave oven
When, centrifugation, 120~130 DEG C drying 2~3 hours.
3. technique according to claim 1, which is characterized in that calcining compound specific method is: in 300 after material mixing
~350 DEG C are calcined 5~10 minutes, are then warming up to 550~600 DEG C with 20~25 DEG C/min of heating rate, and in the temperature
Lower heat preservation is calcined 20~30 minutes, places it in the quenching that cools down in the ethanol water of volumetric concentration 20~30% while hot, is filtered,
Filter residue is warming up to 400~500 DEG C with 3~5 DEG C/min of heating rate, and heat preservation calcining 30~40 minutes at such a temperature, from
It is so cooled to room temperature, crushes, 200~300 meshes are crossed in grinding.
4. technique according to claim 1-3, which is characterized in that the specific method of functionalization is: will gather
Vinylpyrrolidone and neopelex are added in the distilled water of 4~6 times of total weights, and stirring and dissolving, then stirring adds
Compound is added to 70~80 DEG C in heat, stir 3~4 hours under nitrogen atmosphere, filters, washing, dry to get.
5. technique according to claim 1, which is characterized in that the expanded vermiculite is by Crude vermiculite in 400~500 DEG C
Heating 200~250 minutes, natural cooling and obtain.
6. technique according to claim 1-5, which is characterized in that the yttrium oxide and iron oxide composite Nano
Grain is prepared by the following method to obtain: using methanol as reaction dissolvent, iron chloride and sodium hydroxide is added, in the work of dispersing agent
Under, stirring adds methyl formate and acetylacetone,2,4-pentanedione yttrium to dissolving, and stirring to the solution for forming homogeneous transparent is transferred to anti-
It answers in kettle, is heat-treated 50~60 minutes under the conditions of 130~150 DEG C, centrifugation or filtering are washed, dry, calcining, and natural cooling is
?.
7. technique according to claim 1, which is characterized in that second flocculant the preparation method is as follows: formula ratio
Bodied ferric sulfate, middle-molecular-weihydroxyethyl polyacrylamide be uniformly mixed with allyl polyglycol, pour into formula ratio while stirring
In diallyl dimethyl ammoniumchloride, supersonic oscillations 15~20 minutes to get.
8. technique according to claim 1, which is characterized in that raw water adjusting is that waste water lifting to conditioning tank is adjusted pH
=5~6.
9. technique according to claim 1, which is characterized in that guanite processing specific method be: add magnesium chloride and
Disodium hydrogen phosphate is stirred to react 30 minutes, and sedimentation basin precipitates 20~30 minutes；The molar ratio of magnesium contained therein, nitrogen and phosphorus is
1.2:1:1.2, nitrogen are determined by the ammonia content in water body.
10. technique according to claim 1, which is characterized in that the specific method of Fenton advanced treating is: adding Fenton examination
Agent and the second flocculant, are added 0.2~0.3g Fenton reagent and the second flocculant of 0.3~0.4g in every cubic meter of water, when reaction
Between be 2~3 hours, after reaction sedimentation basin precipitate 2~3 hours.
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| CN117023697A (en) * | 2023-10-08 | 2023-11-10 | 中国地质调查局长沙自然资源综合调查中心 | Sewage treatment process for ore collection area |
| CN117023697B (en) * | 2023-10-08 | 2023-12-08 | 中国地质调查局长沙自然资源综合调查中心 | Sewage treatment process for ore collection area |
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