CN104671603A - Treatment method of PMIDA wastewater produced by using IDA method - Google Patents
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Abstract
The invention discloses a method for PMIDA wastewater produced by using an IDA method. The method comprises the following steps: regulating pH of wastewater of PMIDA mother liquid condensate to be 12 by using quick lime and liquid caustic soda; introducing steam and heating to be at 50-60 DEG C; performing alkali condensation and introducing into a biological water distributing tank; regulating pH of secondary washing water to be 1-3 and performing a micro-electrolytic reaction; adding hydrogen peroxide and performing catalytic oxidization in the presence of a surface catalyst; regulating pH to be 7.5-8; pumping wastewater into a biochemical system; using a strain which can be tolerant to 1-3 percent of salinity; degrading organic pollutants by using an ABR anaerobic I/continuous aerobic I/ABR II/continuous aerobic II method and simultaneously turning organophosphorus into orthophosphate; precipitating sludge and transporting outwards; enabling liquid supernatant to flow into a phosphorous removal reaction tank; adding coagulants and lime to be fully subjected to reaction to enable mixed liquid to flow into a phosphorous removal precipitation tank; enabling the liquid supernatant to reach the discharge standard; transporting outwards the sludge. The method is low in operation cost; effluent water is subjected to biochemical treatment so that COD completely reaches the discharge standard; after chemical phosphorous removal, the total phosphorous reaches the discharge standard, so that the pollutants are reduced to the lowest level, the chromaticity is greatly reduced, and the method has a good environmental effect.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, specifically a kind of method processing IDA method N-(phosphonomethyl) iminodiacetic acid wastewater.
Background technology
IDA method pmida98 production technique is hydrolyzed obtained iminodiethanoic acid in the basic conditions by diacetonitrile.Iminodiethanoic acid and hydrochloric acid, phosphorous acid, formaldehyde are in a kettle. after condensation, and decrease temperature crystalline filtering drying obtains product.
The waste water that pmida98 production technique produces mainly at iminodiethanoic acid and phosphorous acid after condensation reaction, the pmida98 product of generation insoluble.Owing to containing plurality of raw materials and side reaction product in product, pmida98 needs to carry out three washings, and first time, wash water was as pmida98 mother liquor, and the waste water of second time and washing is for the third time as secondary jean-washing wastewater.
Wherein this waste water of secondary wash water contains the pmida98 (0.3%) of higher concentration, phosphorous acid, hydrochloric acid, formaldehyde and iminodiethanoic acid and sodium-chlor, belongs to acid stronger complicated pollutent waste water.Containing the toxic substance suppressing microorganism growth in waste water, biodegradability extreme difference, now waste water salinity has 3%, belongs to bio-refractory organic waste water.Need the improvement carrying out waste water
The main formaldehyde containing 3.0 ~ 5.0% mass concentrations in pmida98 mother liquor, its concentration is 30000 ~ 50000mg/L, belongs to ultrahigh concentration formaldehyde waste water, saliferous 20 ~ 25%, pmida98, hydrochloric acid.This waste water is by the mode of evaporation desalination, and eliminate the salinity in waste water, evaporation condensate carries out waste water treatment.Waste water phlegma still also has the formaldehyde of high level to be about 30000-50000mg/l.
Pmida98 mother liquor phlegma and pmida98 secondary jean-washing wastewater feature contain high-concentration formaldehyde, pmida98, phosphorous acid, the difficult point restricting such wastewater treatment is 1, formaldehyde containing 30000-50000mg/L in waste water, when waste water concentration of formaldehyde is higher than 135 ~ 175mg/L, restraining effect is had to aerobic degradation microorganism, when concentration of formaldehyde is higher than 100mg/L, there is restraining effect to anaerobic degradation microorganism.Therefore, PARA FORMALDEHYDE PRILLS(91,95) just can carry out biochemical treatment after removing.2, the organic phosphorus concentration in waste water is higher, and water outlet total phosphorus is up to standard, then after needing organophosphorus can be made to be converted into inorganic phosphate by a series for the treatment of process, by the form of precipitation, remove total phosphorus.3, the TDS concentration of secondary wash water still has 30000mg/L, adopts traditional activated sludge process, needs the dilution water of 3 times, adds sewage discharge amount and treatment capacity.
Above-mentioned showing can meet the process of preferential PARA FORMALDEHYDE PRILLS(91,95) completely to IDA method N-(phosphonomethyl) iminodiacetic acid wastewater treatment process needs, eliminates the inhibitory effect to subsequent biochemical.Rational materialization and biochemical combination technique, realize organophosphorus and can discharge completely and be converted into electrodeless phosphoric acid salt.Biochemical technology is selected can the bacterial classification technology of tolerant T DS30000mg/L.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, provide a kind of running cost low, consume energy little, effectively can process the method for IDA method N-(phosphonomethyl) iminodiacetic acid wastewater.
Technical scheme: in order to reach goal of the invention, the invention provides a kind of method processing IDA method N-(phosphonomethyl) iminodiacetic acid wastewater, comprises the following steps:
Process a method for IDA method N-(phosphonomethyl) iminodiacetic acid wastewater, it is characterized in that, said method comprising the steps of:
(1) IDA method pmida98 mother liquor phlegma is pumped into alkaline condensation pond, add unslaked lime and alkaline reagents tune pH10 ~ 12, logical steam is heated to 50 ~ 60 DEG C, reaction times 2 ~ 3h, period need be supplemented alkaline reagents and be maintained wastewater pH 10 ~ 12, wherein adds 8 ~ 12g unslaked lime in every 1L mother liquor phlegma;
(2) gained waste water passes into settling tank together with lime, and supernatant liquor is discharged, and lime is collected and is back to alkaline condensation pond;
(3) IDA method pmida98 secondary wash water is pumped into iron-carbon micro-electrolysis pond, pH to 1 ~ 3 adjusted by Plus acidic reagent;
(4) adjust pH to be greater than 7 with alkaline reagents step (3) gained waste water, then add coagulating agent, pass into coagulative precipitation tank, supernatant liquor discharge, mud transport outward process separately, add 5 ~ 10mg coagulating agent in every 1L waste water;
(5) step (4) supernatant liquor is passed into catalysis pump sump, pH to 4 ~ 6 adjusted by Plus acidic reagent;
(6) in step (5) gained waste water, the hydrogen peroxide that concentration is 20 ~ 30% is added, then mixed water body is pumped in catalyzed oxidation tower, waste water mixes by contacting with surface catalyst fixing in tower with hydrogen peroxide, and catalyzed oxidation occurs, and the reaction times is 1.5 ~ 2.5h;
(7) step (2) supernatant liquor and the mixing of step (6) gained waste water are passed into biochemical distribution reservoir, control water inlet salinity and be less than 3%, and hydro-oxidation sodium solution adjusts pH to 7.5 ~ 8;
(8) control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria in water body, carrying out one-level anaerobic biochemical reaction 24 ~ 48 hours, destroying organic structure in waste water, degraded partial organic substances;
(9) continued to pass into reaction tank by water body, regulate pH to 7 ~ 9, control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria, carry out one-level aerobic reaction 24 ~ 48 hours, the dissolved oxygen controlled in Aerobic Pond is 2 ~ 4mg/L; .
(10) control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria in water body, carrying out secondary anaerobic biochemical reaction 24 ~ 48 hours, destroying organic structure in waste water, degraded partial organic substances;
(11) continued to pass into reaction tank by water body, regulate pH to 7 ~ 9, control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria, carry out secondary aerobic reaction 24 ~ 48 hours, the dissolved oxygen controlled in Aerobic Pond is 2 ~ 4mg/L;
(12) step (11) gained waste water is passed into second pond together with mud mixed liquid, supernatant liquor is discharged, mud outward transport process;
(13) step (12) gained supernatant liquor is passed into dephosphorization reaction tank, add lime and coagulating agent, in every L supernatant liquor, add 1000 ~ 3500mg lime, 0.005 ~ 0.01mg coagulating agent;
(14) step (13) gained waste water is passed into dephosphorization settling tank together with mud mixed liquid, supernatant liquor qualified discharge, mud transports outward process separately.
Wherein, above-mentioned acid reagent is hydrochloric acid or sulfuric acid, and alkaline reagents is sodium hydroxide.
Wherein, in above-mentioned steps (2), the mass ratio of waste water and unslaked lime is 80 ~ 120:1.
Wherein, in upper described step (6), the volume ratio of waste water and hydrogen peroxide is 50 ~ 100:1.
Wherein, the preparation process of the surface catalyst in above-mentioned steps (6) is: with weight percent be 1 ~ 5% copper nitrate aqueous solution and weight percent be that the manganese sulfate solution Immesion active carbon of 1 ~ 5% is after 36 ~ 72 hours, dry, more shaping with 500 ~ 600 DEG C of roastings.
Wherein, the anaerobic bacterium in above-mentioned steps (8) is Bacteroides, butyric acid vibrios Pseudomonas, Eubacterium, genus bifidobacterium, syntrophism zygosaccharomyces, dark Bacillaceae, methane phase Bacillaceae, Methanococcus, methanogenic thrix genus, methane phase germ genus or methane phase Sarcina.
Wherein, above-mentioned anaerobic biological and aerobic biochemical salt-durable microbe bacterium used, by method described in similar Chinese patent CN101477105, can screening, tame acquisition Facultative Halophiles bacterial strain, also can obtain by buying in high-salt wastewater.Existing Facultative Halophiles includes but not limited to as gluconobacter oxydans (Gluconobacter oxydans), lactobacillus fermentum (Lactobacillus fermentum), short lactobacillus (Lactobacillus brevis), micrococcus luteus (Micrococcus leutus), halo micrococci (also claims Micrococcus halobius, Micrococcus halobius), Pseudomonas alcaligenes (Pseudomonas alcaligenes), cause golden pseudomonas (Pseudomonas aureofaciens), greenery pseudomonas (Pseudomonas chlororaphis), nitrate reductase pseudomonas (Pseudomonas nitroreducens), riboflavin pseudomonas (Pseudomonas riboflavina), pseudomonas putida (Pseudomonas putida) and Pseudomonas facilis (Pseudomonas facilis).
Wherein, above-mentioned coagulating agent is polymerize aluminum chloride or poly-third ethanamide.
Beneficial effect: pmida98 mother liquor phlegma of the present invention have employed alkaline condensation pre-treatment formaldehyde, secondary wash water adopts iron-carbon micro-electrolysis-catalyzed oxidation pre-treatment.After both pre-treatment, biochemistry-chemical precipitation integrated processes process is carried out in mixing, has following advantage
1, pmida98 mother liquor phlegma middle and high concentration formaldehyde obtains the removal of more than 99.9%, is all condensed into polysaccharide material.Reduce the bio-toxicity of waste water, improve B/C ratio;
2, secondary wash water adopts the combined pretreatment technique of iron-carbon micro-electrolysis and catalyzed oxidation, can be obvious to removal effects such as the difficult degradation organo phosphorous compoundss in waste water at normal temperatures and pressures, and make most of organophosphorus change inorganic phosphorus into, biodegradability is improve, for subsequent biochemical process creates condition while significantly cutting down COD.From the character of N-(phosphonomethyl) iminodiacetic acid wastewater, waste strength is high, complicated component, and containing the reluctant pollutent of multiple common process, therefore, is well suited for processing by iron-carbon micro-electrolysis and triphase catalytic oxidation integrated process.Reaction conditions is gentle, and level of automation is high, easy and simple to handle, and facility investment is few;
3, the use of catalyzer, improves oxidation efficiency, overcomes the selectivity to oxidation operation, to the clearance of IDA method N-(phosphonomethyl) iminodiacetic acid wastewater COD more than 60%, especially to the organism P wastewater of difficult degradation;
4, the biochemical system that the present invention adopts is ABR I-aerobic I-ABR II-aerobic II combined system continuously continuously, combined removal COD and total phosphorus, waste water under anaerobic now, is degraded further by anaerobic bacterium, organophosphorus changes inorganic phosphorus, and by a part of phosphorus of metabolism picked-up.After anaerobism, waste water enters aerobic process, strengthens completing smoothly of polyP bacteria excess ingestion phosphorus, carry out biological phosphate-eliminating by control aeration rate, reaction times, sludge age, and the COD that simultaneously degrades;
5, the present invention adopts the anaerobic-aerobic biochemical system of two-stage, specific order, and make organic matter degradation in waste water thorough, organophosphorus all discharges and is transformed into ortho-phosphoric acid salt;
6, on the basis of biological phosphate-eliminating, further reinforced phosphor-removing effect, by chemical precipitation method, removes the phosphorus participated in waste water further, makes the complete qualified discharge of water outlet;
7, whole set process is effective, flexible and convenient operation, can reach the qualified discharge of COD and total phosphorus for IDA method N-(phosphonomethyl) iminodiacetic acid wastewater.
Embodiment
Embodiment 1:
IDA method pmida98 mother liquor phlegma is pumped into alkaline condensation pond, and add unslaked lime and alkaline reagents tune pH10, logical steam is heated to 50 DEG C, reaction times 2h, and period need be supplemented alkaline reagents and be maintained wastewater pH 10, wherein adds 8g unslaked lime in every 1L mother liquor phlegma; Gained waste water passes into settling tank together with lime, and supernatant liquor is discharged stand-by, and lime is collected and is back to alkaline condensation pond.
IDA method pmida98 secondary wash water is pumped into iron-carbon micro-electrolysis pond, and pH to 1 adjusted by Plus acidic reagent; Gained waste water adjusts pH to be greater than 7 with alkaline reagents, add coagulating agent again, add 5mg coagulating agent in every 1L waste water, pass into coagulative precipitation tank, supernatant liquor is discharged, mud transports outward process separately, supernatant liquor passes into catalysis pump sump, and pH to 4 adjusted by Plus acidic reagent, adds the hydrogen peroxide that concentration is 20 ~ 30% in gained waste water, then mixed water body is pumped in catalyzed oxidation tower, waste water mixes by contacting with surface catalyst fixing in tower with hydrogen peroxide, and catalyzed oxidation occurs, and the reaction times is 1.5h;
The supernatant liquor of above-mentioned two step gained, waste water mixing are passed into biochemical distribution reservoir, and hydro-oxidation sodium solution adjusts PH to 7.5; Control water temperature 25 DEG C and add salt tolerant composite bacteria in water body, carrying out one-level anaerobic biochemical reaction 24 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 7, control water temperature 25 DEG C and add salt tolerant composite bacteria, carry out one-level aerobic reaction 24 hours, the dissolved oxygen controlled in Aerobic Pond is 2mg/L; Control water temperature 25 DEG C and add salt tolerant composite bacteria in water body, carrying out secondary anaerobic biochemical reaction 24 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 7, control water temperature 25 DEG C and add salt tolerant composite bacteria, carry out secondary aerobic reaction 24 hours, the dissolved oxygen controlled in Aerobic Pond is 2mg/L; Gained waste water is passed into second pond together with mud mixed liquid, supernatant liquor is discharged, mud outward transport process, gained supernatant liquor passes into dephosphorization reaction tank, add lime and coagulating agent, add 1000mg lime, 0.005mg coagulating agent in every 1L supernatant liquor, gained waste water passes into dephosphorization settling tank together with mud mixed liquid, supernatant liquor qualified discharge, mud transports outward process separately.
Embodiment 2:
IDA method pmida98 mother liquor phlegma is pumped into alkaline condensation pond, and add unslaked lime and alkaline reagents tune pH11, logical steam is heated to 55 DEG C, the reaction times 2.5, and period need be supplemented alkaline reagents and be maintained wastewater pH 11, wherein adds 10g unslaked lime in every 1L mother liquor phlegma; Gained waste water passes into settling tank together with lime, and supernatant liquor is discharged stand-by, and lime is collected and is back to alkaline condensation pond.
IDA method pmida98 secondary wash water is pumped into iron-carbon micro-electrolysis pond, and pH to 2 adjusted by Plus acidic reagent; Gained waste water adjusts pH to be greater than 7 with alkaline reagents, add coagulating agent again, add 8mg coagulating agent in every 1L waste water, pass into coagulative precipitation tank, supernatant liquor is discharged, mud transports outward process separately, supernatant liquor passes into catalysis pump sump, and pH to 5 adjusted by Plus acidic reagent, adds the hydrogen peroxide that concentration is 20 ~ 30% in gained waste water, then mixed water body is pumped in catalyzed oxidation tower, waste water mixes by contacting with surface catalyst fixing in tower with hydrogen peroxide, and catalyzed oxidation occurs, and the reaction times is 2h;
The supernatant liquor of above-mentioned two step gained, waste water mixing are passed into biochemical distribution reservoir, and hydro-oxidation sodium solution adjusts PH to 7.5; Control water temperature 30 DEG C and add salt tolerant composite bacteria in water body, carrying out one-level anaerobic biochemical reaction 36 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 8, control water temperature 30 DEG C and add salt tolerant composite bacteria, carry out one-level aerobic reaction 36 hours, the dissolved oxygen controlled in Aerobic Pond is 3mg/L; Control water temperature 30 DEG C and add salt tolerant composite bacteria in water body, carrying out secondary anaerobic biochemical reaction 36 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 8, control water temperature 30 DEG C and add salt tolerant composite bacteria, carry out secondary aerobic reaction 36 hours, the dissolved oxygen controlled in Aerobic Pond is 3mg/L; Gained waste water is passed into second pond together with mud mixed liquid, supernatant liquor is discharged, mud outward transport process, gained supernatant liquor passes into dephosphorization reaction tank, add lime and coagulating agent, add 2000mg lime, 0.008mg coagulating agent in every 1L supernatant liquor, gained waste water passes into dephosphorization settling tank together with mud mixed liquid, supernatant liquor qualified discharge, mud transports outward process separately.
Embodiment 3:
IDA method pmida98 mother liquor phlegma is pumped into alkaline condensation pond, and add unslaked lime and alkaline reagents tune pH12, logical steam is heated to 60 DEG C, reaction times 3h, and period need be supplemented alkaline reagents and be maintained wastewater pH 12, wherein adds 12g unslaked lime in every 1L mother liquor phlegma; Gained waste water passes into settling tank together with lime, and supernatant liquor is discharged stand-by, and lime is collected and is back to alkaline condensation pond.
IDA method pmida98 secondary wash water is pumped into iron-carbon micro-electrolysis pond, and pH to 3 adjusted by Plus acidic reagent; Gained waste water adjusts pH to be greater than 7 with alkaline reagents, add coagulating agent again, add 10mg coagulating agent in every 1L waste water, pass into coagulative precipitation tank, supernatant liquor is discharged, mud transports outward process separately, supernatant liquor passes into catalysis pump sump, and pH to 6 adjusted by Plus acidic reagent, adds the hydrogen peroxide that concentration is 20 ~ 30% in gained waste water, then mixed water body is pumped in catalyzed oxidation tower, waste water mixes by contacting with surface catalyst fixing in tower with hydrogen peroxide, and catalyzed oxidation occurs, and the reaction times is 2.5h;
The supernatant liquor of above-mentioned two step gained, waste water mixing are passed into biochemical distribution reservoir, and hydro-oxidation sodium solution adjusts PH to 8; Control water temperature 35 DEG C and add salt tolerant composite bacteria in water body, carrying out one-level anaerobic biochemical reaction 48 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 9, control water temperature 35 DEG C and add salt tolerant composite bacteria, carry out one-level aerobic reaction 48 hours, the dissolved oxygen controlled in Aerobic Pond is 4mg/L; Control water temperature 35 DEG C and add salt tolerant composite bacteria in water body, carrying out secondary anaerobic biochemical reaction 48 hours, destroying organic structure in waste water, degraded partial organic substances; Continued to pass into reaction tank by water body, regulate pH to 9, control water temperature 35 DEG C and add salt tolerant composite bacteria, carry out secondary aerobic reaction 48 hours, the dissolved oxygen controlled in Aerobic Pond is 4mg/L; Gained waste water is passed into second pond together with mud mixed liquid, supernatant liquor is discharged, mud outward transport process, gained supernatant liquor passes into dephosphorization reaction tank, add lime and coagulating agent, add 3500mg lime, 0.01mg coagulating agent in every 1L supernatant liquor, gained waste water passes into dephosphorization settling tank together with mud mixed liquid, supernatant liquor qualified discharge, mud transports outward process separately.
Claims (8)
1. process a method for IDA method N-(phosphonomethyl) iminodiacetic acid wastewater, it is characterized in that, said method comprising the steps of:
(1) IDA method pmida98 mother liquor phlegma is pumped into alkaline condensation pond, add unslaked lime and alkaline reagents tune pH10 ~ 12, logical steam is heated to 50 ~ 60 DEG C, reaction times 2 ~ 3h, period need be supplemented alkaline reagents and be maintained wastewater pH 10 ~ 12, wherein adds 8 ~ 12g unslaked lime in every 1L mother liquor phlegma;
(2) gained waste water passes into settling tank together with lime, and supernatant liquor is discharged, and lime is collected and is back to alkaline condensation pond;
(3) IDA method pmida98 secondary wash water is pumped into iron-carbon micro-electrolysis pond, pH to 1 ~ 3 adjusted by Plus acidic reagent;
(4) adjust pH to be greater than 7 with alkaline reagents step (3) gained waste water, then add coagulating agent, pass into coagulative precipitation tank, supernatant liquor discharge, mud transport outward process separately, add 5 ~ 10mg coagulating agent in every 1L waste water;
(5) step (4) supernatant liquor is passed into catalysis pump sump, pH to 4 ~ 6 adjusted by Plus acidic reagent;
(6) in step (5) gained waste water, the hydrogen peroxide that concentration is 20 ~ 30% is added, then mixed water body is pumped in catalyzed oxidation tower, waste water mixes by contacting with surface catalyst fixing in tower with hydrogen peroxide, and catalyzed oxidation occurs, and the reaction times is 1.5 ~ 2.5h;
(7) step (2) supernatant liquor and the mixing of step (6) gained waste water are passed into biochemical distribution reservoir, control water inlet salinity and be less than 3%, and hydro-oxidation sodium solution adjusts pH to 7.5 ~ 8;
(8) control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria in water body, carrying out one-level anaerobic biochemical reaction 24 ~ 48 hours, destroying organic structure in waste water, degraded partial organic substances;
(9) continued to pass into reaction tank by water body, regulate pH to 7 ~ 9, control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria, carry out one-level aerobic reaction 24 ~ 48 hours, the dissolved oxygen controlled in Aerobic Pond is 2 ~ 4mg/L; .
(10) control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria in water body, carrying out secondary anaerobic biochemical reaction 24 ~ 48 hours, destroying organic structure in waste water, degraded partial organic substances;
(11) continued to pass into reaction tank by water body, regulate pH to 7 ~ 9, control water temperature 25 ~ 35 DEG C and add salt tolerant composite bacteria, carry out secondary aerobic reaction 24 ~ 48 hours, the dissolved oxygen controlled in Aerobic Pond is 2 ~ 4mg/L;
(12) step (11) gained waste water is passed into second pond together with mud mixed liquid, supernatant liquor is discharged, mud outward transport process;
(13) step (12) gained supernatant liquor is passed into dephosphorization reaction tank, add lime and coagulating agent, in every 1L supernatant liquor, add 1000 ~ 3500mg lime, 0.005 ~ 0.01mg coagulating agent;
(14) step (13) gained waste water is passed into dephosphorization settling tank together with mud mixed liquid, supernatant liquor qualified discharge, mud transports outward process separately.
2. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, it is characterized in that described acid reagent is hydrochloric acid or sulfuric acid, alkaline reagents is sodium hydroxide.
3. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that the mass ratio of waste water and unslaked lime in described step (2) is 80 ~ 120:1.
4. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that the volume ratio of waste water and hydrogen peroxide in described step (6) is 50 ~ 100:1.
5. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, it is characterized in that the preparation process of the surface catalyst in described step (6) is: with weight percent be 1 ~ 5% copper nitrate aqueous solution and weight percent be that the manganese sulfate solution Immesion active carbon of 1 ~ 5% is after 36 ~ 72 hours, dry, more shaping with 500 ~ 600 DEG C of roastings.
6. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that the anaerobism salt tolerant composite bacterial in described step (8) and step (10) is Bacteroides, butyric acid vibrios Pseudomonas, Eubacterium, genus bifidobacterium, syntrophism zygosaccharomyces, dark Bacillaceae, methane phase Bacillaceae, Methanococcus, methanogenic thrix genus, methane phase germ genus or methane phase Sarcina.
7. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, it is characterized in that, aerobic salt-durable microbe bacterium in described step (9) and step (11) is gluconobacter oxydans (Gluconobacter oxydans), lactobacillus fermentum (Lactobacillus fermentum), short lactobacillus (Lactobacillus brevis), micrococcus luteus (Micrococcus leutus), halo micrococci (also claims Micrococcus halobius, Micrococcus halobius), Pseudomonas alcaligenes (Pseudomonas alcaligenes), cause golden pseudomonas (Pseudomonas aureofaciens), greenery pseudomonas (Pseudomonas chlororaphis), nitrate reductase pseudomonas (Pseudomonas nitroreducens), riboflavin pseudomonas (Pseudomonas riboflavina), pseudomonas putida (Pseudomonas putida) or Pseudomonas facilis (Pseudomonas facilis).
8. the method for process IDA method N-(phosphonomethyl) iminodiacetic acid wastewater according to claim 1, is characterized in that described coagulating agent is polymerize aluminum chloride or poly-third ethanamide.
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| CN108751599A (en) * | 2018-06-25 | 2018-11-06 | 江苏宜裕环保科技有限公司 | A kind of method of high-performance bio strain processing glufosinate-ammonium agricultural chemicals waste water |
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