CN108911013A - A kind of processing method of glutamic acid fermentation waste water - Google Patents
A kind of processing method of glutamic acid fermentation waste water Download PDFInfo
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- CN108911013A CN108911013A CN201810942677.5A CN201810942677A CN108911013A CN 108911013 A CN108911013 A CN 108911013A CN 201810942677 A CN201810942677 A CN 201810942677A CN 108911013 A CN108911013 A CN 108911013A
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- waste water
- glutamic acid
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 235000013922 glutamic acid Nutrition 0.000 title claims abstract description 38
- 239000004220 glutamic acid Substances 0.000 title claims abstract description 38
- 239000002921 fermentation waste Substances 0.000 title claims abstract description 31
- 238000003672 processing method Methods 0.000 title claims abstract description 27
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004880 explosion Methods 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 claims abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 8
- 241000209140 Triticum Species 0.000 claims abstract description 8
- 235000021307 Triticum Nutrition 0.000 claims abstract description 8
- 240000008042 Zea mays Species 0.000 claims abstract description 8
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 8
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 8
- 235000001014 amino acid Nutrition 0.000 claims abstract description 8
- 150000001413 amino acids Chemical class 0.000 claims abstract description 8
- 235000005822 corn Nutrition 0.000 claims abstract description 8
- 239000003337 fertilizer Substances 0.000 claims abstract description 8
- 239000010907 stover Substances 0.000 claims abstract description 8
- 229940014800 succinic anhydride Drugs 0.000 claims abstract description 8
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 37
- 239000000706 filtrate Substances 0.000 claims description 36
- 238000001914 filtration Methods 0.000 claims description 18
- 239000010902 straw Substances 0.000 claims description 18
- 238000000855 fermentation Methods 0.000 claims description 14
- 230000004151 fermentation Effects 0.000 claims description 14
- 238000007873 sieving Methods 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 6
- 238000004108 freeze drying Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 239000010455 vermiculite Substances 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 8
- 239000006249 magnetic particle Substances 0.000 abstract description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 abstract description 2
- 239000001913 cellulose Substances 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 28
- 238000007654 immersion Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- LPUQAYUQRXPFSQ-DFWYDOINSA-M monosodium L-glutamate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCC(O)=O LPUQAYUQRXPFSQ-DFWYDOINSA-M 0.000 description 2
- 235000013923 monosodium glutamate Nutrition 0.000 description 2
- 239000004223 monosodium glutamate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- DWNBOPVKNPVNQG-LURJTMIESA-N (2s)-4-hydroxy-2-(propylamino)butanoic acid Chemical compound CCCN[C@H](C(O)=O)CCO DWNBOPVKNPVNQG-LURJTMIESA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical group Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- 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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of processing methods of glutamic acid fermentation waste water, belong to technical field of waste water processing.The present invention is using wheat stalk and corn stover as base-material, pass through hydrogen peroxide oxidation, expand the hole inside stalk using steam explosion technology, and micro degradation is carried out to the substance in stalk, increase active group, frerrous chloride and iron chloride are then formed into nano magnetic particle under alkaline condition again, it is deposited on stalk by active group, increase catalysis and adsorption effect, pass through the catalytic effect using magnetic-particle, the cellulose on stalk is modified using succinic anhydride, increase carboxyl, pass through the catalytic action of magnetic-particle again, it is combined carboxyl with glutamic acid, impurity therein is reduced using the suction-operated of magnetic-particle simultaneously, therefore obtained substance may be used as amino acid fertilizer carry out using.
Description
Technical field
The present invention relates to a kind of processing methods of glutamic acid fermentation waste water, belong to technical field of waste water processing.
Background technique
The wastewater flow rate discharged during glutamate production is big, the mother liquor that fermented gournet powder liquid discharges after equal electricity extracts glutamic acid
With CODCr high, BOD5 high, thallus content height, sulfate radical（It uses instead before sulfuric acid tune pH as chloride ion）--- content is high, ammonia nitrogen contains
Amount height and pH value（1.5-3.2）The characteristics of low " five high one is low ".It is a kind of industrial wastewater that difficulty of governance is very big.On the one hand：Taste
The extraction of essence generallys use equal electricity-ion-exchange method, comes out glutamic acid crystallization by the way that concentrated sulfuric acid adjusting isoelectric point is added, and produces
The ammonium sulphate waste liquor generated in journey brings greatly difficulty to liquid waste processing, causes direct harm to environment, water source.
On the other hand：Monosodium glutamate industry is also the largest source of pollution in China's fermentation industry, and the pollution of monosodium glutamate industry high concentrated organic wastewater is tight
Weight, is industry common problem outstanding.
The processing method of glutamic acid fermentation waste water is mostly flocculent precipitation, bioanalysis at present, but is wadded a quilt with cotton in flocculent precipitation
The flocculating effect of solidifying agent is poor, and the COD value being discharged after Biochemical method is higher, and hydraulic detention time is longer, and generates asking for stench
Topic.
Summary of the invention
The technical problems to be solved by the invention：Aiming at the problem that current glutamic acid fermentation waste water poor processing effect, this hair
Bright offer can a kind of processing method of glutamic acid fermentation waste water.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of processing method of glutamic acid fermentation waste water, the processing method include the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 7~9:1, it is mixed, is stood, filter residue is collected in filtering
And filtrate, filter residue is sealed fermentation, collects fermentation material, dried object is collected in spray drying；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 5~7:1, it is stirred,
PH to 3.5~4.5 is adjusted, is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 20~25% of filtrate volume, is warming up to 100~105
DEG C, it heats, stands, filtering by filtrate sterilizing, is stood at 10~15 DEG C, is filtered, discharge, that is, completes to send out glutamic acid
The processing of ferment waste water.
The preparation method of the pretreated straw is：
A. by corn stover, wheat stalk mass ratio 4:3~6 carry out co-grinding, and sieving particle and hydrogen peroxide are pressed matter by sieving
Measure ratio 1:4~7 are impregnated, filtering, and filter residue is carried out steam blasting, collects explosion object；
B. by explosion object, mixture and water in mass ratio 7~9:1:16~20 carry out it is uniformly mixed, using ammonium hydroxide adjust pH to
8.0~8.5, it stands, filters, it is dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 6~9:20:2~4 are put into instead
It answers in device, heats, cooling, cool-drying collects freeze-drying object to get pretreated straw.
Mixture is iron chloride, frerrous chloride in mass ratio 4~6 in the step B:5 mix.
The step（1）Middle dried object for amino acid fertilizer carry out using.
The step（2）Middle mixture is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:3~6 mix.
The step（3）Middle mixed liquor is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:3~5:1
It is uniformly mixed, mixed liquor can be obtained.
The present invention is compared with other methods, and advantageous effects are：
（1）The present invention is expanded by hydrogen peroxide oxidation using steam explosion technology using wheat stalk and corn stover as base-material
Hole inside stalk, and micro degradation is carried out to the substance in stalk, increase active group, then again by frerrous chloride
And iron chloride forms nano magnetic particle under alkaline condition, is deposited on stalk by active group, increases catalysis and suction
Attached effect is modified the cellulose on stalk using succinic anhydride, is increased by the catalytic effect using magnetic-particle
Carboxyl, then by the catalytic action of magnetic-particle, it is combined carboxyl with glutamic acid, while making using the absorption of magnetic-particle
With reducing impurity therein, thus obtained substance may be used as amino acid fertilizer carry out using；
（2）Aluminium ash is added in the present invention, by the effect of glutamic acid wastewater strong acid, forms it into aluminium ion, and due in waste water
Sulfate radical content it is high, under high temperature action, carry out polymerization and form polyaluminium sulfate quasi polymer, flocculate, remove to waste water
It is miscellaneous, while the sulfate radical content in waste water is reduced, the effect realized waste treatment and waste, and cooperate mixture preferably right
Water is purified, and absorption improves the purification ability of water quality；
（3）The present invention is by further removing the impurity in water using calcium hydroxide and polyacrylamide, at raising
Effect is managed, impurity is reduced.
Specific embodiment
The preparation method of the pretreated straw is：
A. by corn stover, wheat stalk mass ratio 4:3~6 carry out co-grinding, sieve with 100 mesh sieve, by sieving particle and dioxygen
Water in mass ratio 1:4~7 carry out immersion 1h, filtering, and filter residue is carried out steam blasting, and pressure 2.5MPa maintains pressure 10s,
Collect explosion object；
B. by explosion object, mixture and water in mass ratio 7~9:1:16~20 carry out it is uniformly mixed, using ammonium hydroxide adjust pH to
8.0~8.5,2h is stood, is filtered, it is dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 6~9:20:2~4 are put into
In reactor, 70 DEG C are heated to, heats 2h, it is cooling, it is dry, freeze-drying object is collected to get pretreated straw.
Mixture is iron chloride, frerrous chloride in mass ratio 4~6 in the step B:5 mix.
The step（1）Middle dried object for amino acid fertilizer carry out using.
The step（2）Middle mixture is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:3~6 mix.
The step（3）Middle mixed liquor is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:3~5:1
It is uniformly mixed, mixed liquor can be obtained.
A kind of processing method of glutamic acid fermentation waste water, the processing method include the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 7~9:1, it is mixed, stands 3h, filter is collected in filtering
Filter residue is sealed fermentation by slag and filtrate, and set temperature is 38 DEG C, is fermented 3 days, and fermentation material is collected, and spray drying is collected dry
Dry object；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 5~7:1, it is stirred,
PH to 3.5~4.5 is adjusted, 6h is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 20~25% of filtrate volume, is warming up to 100~105
DEG C, 2h is heated, 5h is stood, filtering by filtrate sterilizing, stands 3h at 10~15 DEG C, filters, discharge is completed to paddy
The processing of propylhomoserin fermentation waste water.
The preparation method of the pretreated straw is：
A. by corn stover, wheat stalk mass ratio 4:6 carry out co-grinding, sieve with 100 mesh sieve, and sieving particle is pressed with hydrogen peroxide
Mass ratio 1:7 carry out immersion 1h, filtering, and filter residue is carried out steam blasting, and pressure 2.5MPa maintains pressure 10s, collects explosion
Object；
B. by explosion object, mixture and water in mass ratio 9:1:20 carry out it is uniformly mixed, use ammonium hydroxide adjust pH to 8.5, stand
2h is filtered, dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 9:20:4 are put into reactor, are heated to 70
DEG C, 2h is heated, it is cooling, it is dry, freeze-drying object is collected to get pretreated straw.
Mixture is iron chloride, frerrous chloride in mass ratio 6 in the step B:5 mix.
The step（1）Middle dried object for amino acid fertilizer carry out using.
The step（2）Middle mixture is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:6 mix.
The step（3）Middle mixed liquor is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:5:1 stirs
It mixes uniformly mixed, mixed liquor can be obtained.
A kind of processing method of glutamic acid fermentation waste water, the processing method include the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 9:1, it is mixed, stands 3h, filter residue is collected in filtering
And filtrate, filter residue is sealed fermentation, set temperature is 38 DEG C, is fermented 3 days, and fermentation material is collected, and drying is collected in spray drying
Object；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 7:1, it is stirred, adjusts
PH to 4.5 is saved, 6h is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 25% of filtrate volume, 105 DEG C is warming up to, 2h is heated,
5h is stood, filtering by filtrate sterilizing, stands 3h at 15 DEG C, filters, discharge is completed to glutamic acid fermentation waste water
Processing.
The preparation method of the pretreated straw is：
A. by corn stover, wheat stalk mass ratio 4:5 carry out co-grinding, sieve with 100 mesh sieve, and sieving particle is pressed with hydrogen peroxide
Mass ratio 1:6 carry out immersion 1h, filtering, and filter residue is carried out steam blasting, and pressure 2.5MPa maintains pressure 10s, collects explosion
Object；
B. by explosion object, mixture and water in mass ratio 8:1:19 carry out it is uniformly mixed, use ammonium hydroxide adjust pH to 8.5, stand
2h is filtered, dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 8:20:3 are put into reactor, are heated to 70
DEG C, 2h is heated, it is cooling, it is dry, freeze-drying object is collected to get pretreated straw.
Mixture is iron chloride, frerrous chloride in mass ratio 5 in the step B:5 mix.
The step（1）Middle dried object for amino acid fertilizer carry out using.
The step（2）Middle mixture is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:5 mix.
The step（3）Middle mixed liquor is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:4:1 stirs
It mixes uniformly mixed, mixed liquor can be obtained.
A kind of processing method of glutamic acid fermentation waste water, the processing method include the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 8:1, it is mixed, stands 3h, filter residue is collected in filtering
And filtrate, filter residue is sealed fermentation, set temperature is 38 DEG C, is fermented 3 days, and fermentation material is collected, and drying is collected in spray drying
Object；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 6:1, it is stirred, adjusts
PH to 4.0 is saved, 6h is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 23% of filtrate volume, 103 DEG C is warming up to, 2h is heated,
5h is stood, filtering by filtrate sterilizing, stands 3h at 13 DEG C, filters, discharge is completed to glutamic acid fermentation waste water
Processing.
The preparation method of the pretreated straw is：
A. by corn stover, wheat stalk mass ratio 4:3 carry out co-grinding, sieve with 100 mesh sieve, and sieving particle is pressed with hydrogen peroxide
Mass ratio 1:4 carry out immersion 1h, filtering, and filter residue is carried out steam blasting, and pressure 2.5MPa maintains pressure 10s, collects explosion
Object；
B. by explosion object, mixture and water in mass ratio 7:1:16 carry out it is uniformly mixed, use ammonium hydroxide adjust pH to 8.0, stand
2h is filtered, dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 6:20:2 are put into reactor, are heated to 70
DEG C, 2h is heated, it is cooling, it is dry, freeze-drying object is collected to get pretreated straw.
Mixture is iron chloride, frerrous chloride in mass ratio 4 in the step B:5 mix.
The step（1）Middle dried object for amino acid fertilizer carry out using.
The step（2）Middle mixture is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:3 mix.
The step（3）Middle mixed liquor is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:3:1 stirs
It mixes uniformly mixed, mixed liquor can be obtained.
A kind of processing method of glutamic acid fermentation waste water, the processing method include the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 7:1, it is mixed, stands 3h, filter residue is collected in filtering
And filtrate, filter residue is sealed fermentation, set temperature is 38 DEG C, is fermented 3 days, and fermentation material is collected, and drying is collected in spray drying
Object；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 5:1, it is stirred, adjusts
PH to 3.5 is saved, 6h is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 20% of filtrate volume, is warming up to 100~105 DEG C, adds
Hot 2h stands 5h, and filtering by filtrate sterilizing, stands 3h at 10 DEG C, filters, discharge, that is, completes useless to glutamic acid fermentation
The processing of water.
Reference examples：The glutamic acid fermentation waste water processing method that company of Qingdao City provides.
When taking waste water 1L respectively, while monitoring solution ph to 8, the glutamic acid fermentation waste water of the embodiment of the present invention 1~3 is used
The glutamic acid fermentation waste water processing method of processing method and reference examples is tested, and detection method is marked using GB 8978-1996
Standard, test result are as shown in table 1.
Table 1：
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| COD （mg/L） | 486 | 510 | 502 | 1098 |
| Ammonia nitrogen average removal rate（%） | 99.7 | 99.1 | 98.3 | 79.6 |
| BOD5（mg/L） | 7 | 9 | 8 | 15 |
In summary, effect is more preferable in actual use for glutamic acid fermentation waste water processing method of the invention, is worth promoting
It uses.
Claims (6)
1. a kind of processing method of glutamic acid fermentation waste water, which is characterized in that the processing method includes the following steps：
（1）By glutamic acid fermentation waste water and pretreated straw in mass ratio 7~9:1, it is mixed, is stood, filter residue is collected in filtering
And filtrate, filter residue is sealed fermentation, collects fermentation material, dried object is collected in spray drying；
（2）Filtrate is filtered by mixture, filtrate is collected, by filtrate and aluminium ash in mass ratio 5~7:1, it is stirred,
PH to 3.5~4.5 is adjusted, is stood；
（3）After above-mentioned standing, mixed liquor is added, additional amount is the 20~25% of filtrate volume, is warming up to 100~105
DEG C, it heats, stands, filtering by filtrate sterilizing, is stood at 10~15 DEG C, is filtered, discharge, that is, completes to send out glutamic acid
The processing of ferment waste water.
2. the processing method of glutamic acid fermentation waste water according to claim 1, which is characterized in that the system of the pretreated straw
Preparation Method is：
A. by corn stover, wheat stalk mass ratio 4:3~6 carry out co-grinding, and sieving particle and hydrogen peroxide are pressed matter by sieving
Measure ratio 1:4~7 are impregnated, filtering, and filter residue is carried out steam blasting, collects explosion object；
B. by explosion object, mixture and water in mass ratio 7~9:1:16~20 carry out it is uniformly mixed, using ammonium hydroxide adjust pH to
8.0~8.5, it stands, filters, it is dry, by dried object, dehydrated alcohol and succinic anhydride in mass ratio 6~9:20:2~4 are put into instead
It answers in device, heats, it is cooling, it is dry, freeze-drying object is collected to get pretreated straw.
3. the processing method of glutamic acid fermentation waste water according to claim 2, which is characterized in that mixture in the step B
For iron chloride, frerrous chloride in mass ratio 4~6:5 mix.
4. the processing method of glutamic acid fermentation waste water according to claim 1, which is characterized in that the step（1）Middle drying
Object for amino acid fertilizer carry out using.
5. the processing method of glutamic acid fermentation waste water according to claim 1, which is characterized in that the step（2）Middle mixing
Material is by cobblestone, vermiculite and quartz sand in mass ratio 4:2:3~6 mix.
6. the processing method of glutamic acid fermentation waste water according to claim 1, which is characterized in that the step（3）Middle mixing
Liquid is formulated as water, calcium hydroxide and polyacrylamide in mass ratio 10:3~5:1 is uniformly mixed, and can must mix
Liquid.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1911824A (en) * | 2006-08-04 | 2007-02-14 | 哈尔滨工业大学 | Method for preparing biological flocculant using glutamic acid fermentation waste water |
| CN101940248A (en) * | 2009-07-06 | 2011-01-12 | 中国科学院过程工程研究所 | Method for preparing feed by mixing straw and butanol or alcoholic fermentation waste water |
| CN104250119A (en) * | 2014-09-22 | 2014-12-31 | 烟台中正新技术有限公司 | Method for producing bio-organic fertilizer through fermentation wastewater and agricultural waste |
| CN105936924A (en) * | 2016-07-16 | 2016-09-14 | 内蒙古阜丰生物科技有限公司 | New process for preparing polyglutamic acid from crop straw |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911824A (en) * | 2006-08-04 | 2007-02-14 | 哈尔滨工业大学 | Method for preparing biological flocculant using glutamic acid fermentation waste water |
| CN101940248A (en) * | 2009-07-06 | 2011-01-12 | 中国科学院过程工程研究所 | Method for preparing feed by mixing straw and butanol or alcoholic fermentation waste water |
| CN104250119A (en) * | 2014-09-22 | 2014-12-31 | 烟台中正新技术有限公司 | Method for producing bio-organic fertilizer through fermentation wastewater and agricultural waste |
| CN105936924A (en) * | 2016-07-16 | 2016-09-14 | 内蒙古阜丰生物科技有限公司 | New process for preparing polyglutamic acid from crop straw |
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Denomination of invention: A treatment method for glutamic acid fermentation wastewater Granted publication date: 20210119 Pledgee: Yiwu Branch of China Construction Bank Co.,Ltd. Pledgor: Zhejiang Mifeng Group Co.,Ltd. Registration number: Y2024330001024 |