CN105000676A - Method for treating starch processing waste water - Google Patents
Method for treating starch processing waste water Download PDFInfo
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- CN105000676A CN105000676A CN201510469877.XA CN201510469877A CN105000676A CN 105000676 A CN105000676 A CN 105000676A CN 201510469877 A CN201510469877 A CN 201510469877A CN 105000676 A CN105000676 A CN 105000676A
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Abstract
The invention belongs to the technical field of environment protection and discloses a method for treating starch processing waste water. The method comprises the following steps that firstly, biological carriers are prepared, secondly, biological agents are prepared, and thirdly waste water treatment is carried out. The method is easy and feasible, COD, SS and ammonia nitrogen pollutants in waste water can be removed effectively, the cost is low, and the method is easy to be accepted by enterprises.
Description
Technical field
The invention belongs to environmental technology field, particularly a kind for the treatment of process of amylum wastewater.
Background technology
Starch processing is with corn, and the farm crop such as Chinese sorghum, wheat, potato and sweet potato, are prepared into the Technology of starch through techniques such as soaking, grind.It is higher that starch processing industry possesses water consumption, and the features such as contaminative is strong, according to the state of the art that China is current, produce starch product water per ton about 30 ~ 40M
3, the waste water of generation is 20 ~ 30M
3, the COD of waste water is very high, is generally 1000 ~ 30000mg/L, and SS is 500-1000mg/L, and the biological oxygen demand (BOD) of waste water and chemical oxygen demand are very high.Starch Production enterprise discharges a large amount of high concentrated organic wastewaters every year, and the wastewater treatment compliance rate of these Starch Production enterprises discharge is also very low, serious environment pollution, also becomes a principal element of restriction Starch Production and processing industry development simultaneously.
The treatment process of current starch wastewater mainly contains materialization Coagulation Method and the large class of biochemical method two.Materialization Coagulation Method can only remove suspended contamination in starch wastewater and small part water soluble contaminants, overall COD
crclearance is between 30 ~ 50%, and the method can only be the pre-treatment as starch wastewater.Biochemical method has become the main method of starch wastewater treatment, some biochemical methods have report when being applied to the process of starch wastewater, but most of Starch Production enterprise could not effectively process its waste water discharged, majority adopts simple oxidative degradation treatment process, let alone recycling treatment.Major cause has two aspects, and one is that current treatment technology technology and equipment is invested comparatively greatly, and floor space is large, the operation and maintenance difficulty of device, and costly, enterprise is difficult to bear; Two is that the general technical level of these treatment process and device is not high, and processing efficiency is low, and cost is high, and the waste water after process is difficult to the emission standard reaching national regulation; Three is that microorganism compatibility is unreasonable, and oxidation effectiveness is poor, and input cost is high.
Summary of the invention
In order to overcome the deficiency of prior art biochemical method, the invention provides a kind for the treatment of process of amylum wastewater.The method biotechnological formulation input amount is few, and treatment effect is good, and long service life is with low cost, alleviates business burden.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is as follows:
A treatment process for amylum wastewater, comprises the steps:
Step 1) prepares bio-carrier:
A) following each raw material for standby is taken according to weight part, wherein, stalk 1-2 part, silica-gel powder 1-2 part, chitin 2-3 part, kaolin 3-4 part, starch ethers 5-6 part, polyacrylamide 7-9 part, polyvinyl alcohol 10-12 part, water 25-30 part; Preferably, the particle diameter of silica-gel powder is 200 orders; Stalk is maize straw or wheat stalk;
B) stalk pulverizer is pulverized, then add kaolin, mix, be ground to 100 object mixed powders;
C) by silica-gel powder, chitin, starch ethers, polyacrylamide, polyvinyl alcohol and water add in stirred reactor successively, 500 turns/min stirs 10min, then add step B) mixed powder, 500 turns/min stirs 3min, standing 12 hours subsequently, finally be placed in 60 DEG C to dry to moisture content 5%(parts by weight), obtain bio-carrier;
Step 2) prepare biotechnological formulation:
By subtilis, Acidithiobacillus ferrooxidans strain GF, it is 1 × 10 that Acinetobacter bauamnnii and Sphingomonas are cultured to concentration respectively
7the bacterium liquid of individual/ml, it is 1 × 10 that scenedesmus obliquus and chlorella are cultured to concentration respectively
5the algae liquid of individual/ml; By the subtilis liquid of above-mentioned cultivation, Acidithiobacillus ferrooxidans strain GF liquid, Acinetobacter bauamnnii liquid, Sphingomonas liquid, scenedesmus obliquus liquid and chlorella liquid mix according to the volume ratio of 3:2:2:1:1:1, leave standstill 6 hours, obtain mixing liquid; Bio-carrier mixing liquid and step 1) prepared is according to the quality of 1:2 than mixing and stirring, and room temperature fermentation 24-36h, being dried to water content is 10%(parts by weight), to obtain final product.
Step 3) is carried out a biological disposal upon:
Amylum wastewater flows through grid, removes suspended substance in water, enters equalizing tank subsequently, and the pH regulating waste water is 6.5-7, then according to 5g biotechnological formulation: the addition of 1 cubic metre of waste water adds biotechnological formulation, leaves standstill six days, discharges.
Bacterial classification of the present invention and algae all commercial sources can be bought and obtain from preservation center etc.
Bacterial classification of the present invention and algae all obtain bacterium liquid or the algae liquid of desired concn by the cultural method of routine, this is innovative point of the present invention not, as space is limited, does not repeat one by one.
The beneficial effect that the present invention obtains mainly comprises:
The technique simple possible of process amylum wastewater of the present invention, with low cost, treatment effect is good; Bio-carrier provided by the invention, adopts the raw material of different-grain diameter, can not only expand the specific surface area of carrier, and have tensile strength large, be evenly distributed, specific surface area is large, the features such as long service life; Bio-carrier provided by the invention can improve the adhesion amount of microorganism greatly, and increase the biofilm biomass of overall attachment, the microorganism concn in reactive tank is improved, and can reduce mud generation; The existence of the anaerobism that microbe carrier of the present invention provides, anoxic and aerobic various environment can promote nitration denitrification effect, promotes the minimizing of mud simultaneously, is conducive to the removal of the pollutent such as COD, SS and ammonia nitrogen in waste water; Biotechnological formulation of the present invention, by various bacterial classification and the algae that can form dominant microflora, is mixed with high-performance bio preparation, reasonable compatibility between each microorganism, and symbiosis is coordinated, mutually not antagonism, and biomass is large, and breeding is fast; Biotechnological formulation of the present invention is suitable for wastewater treatment, and be convenient to transport and preserve, more easily activate during use, running cost is cheap.
Embodiment
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the application's specific embodiment, the technical scheme of the application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1
A treatment process for amylum wastewater, comprises the steps:
Step 1) prepares bio-carrier:
A) following each raw material for standby is taken according to weight part, wherein, stalk 1 part, silica-gel powder 1 part, chitin 2 parts, kaolin 3 parts, starch ethers 5 parts, polyacrylamide 7 parts, polyvinyl alcohol 10 parts, 25 parts, water; Wherein, the particle diameter of silica-gel powder is 200 orders; Stalk is maize straw;
B) stalk pulverizer is pulverized, then add kaolin, mix, be ground to 100 object mixed powders;
C) by silica-gel powder, chitin, starch ethers, polyacrylamide, polyvinyl alcohol and water add in stirred reactor successively, 500 turns/min stirs 10min, then add step B) mixed powder, 500 turns/min stirs 3min, standing 12 hours subsequently, finally be placed in 60 DEG C to dry to moisture content 5%(parts by weight), obtain bio-carrier;
Step 2) prepare biotechnological formulation:
By subtilis, Acidithiobacillus ferrooxidans strain GF, it is 1 × 10 that Acinetobacter bauamnnii and Sphingomonas are cultured to concentration respectively
7the bacterium liquid of individual/ml, it is 1 × 10 that scenedesmus obliquus and chlorella are cultured to concentration respectively
5the algae liquid of individual/ml; By the subtilis liquid of above-mentioned cultivation, Acidithiobacillus ferrooxidans strain GF liquid, Acinetobacter bauamnnii liquid, Sphingomonas liquid, scenedesmus obliquus liquid and chlorella liquid mix according to the volume ratio of 3:2:2:1:1:1, leave standstill 6 hours, obtain mixing liquid; Bio-carrier mixing liquid and step 1) prepared is according to the quality of 1:2 than mixing and stirring, and room temperature fermentation 24-36h, being dried to water content is 10%(parts by weight), to obtain final product.
Step 3) wastewater treatment:
Amylum wastewater flows through grid, removes suspended substance in water, enters equalizing tank subsequently, and the pH regulating waste water is 6.5, then according to 5g biotechnological formulation: the addition of 1 cubic metre of waste water adds biotechnological formulation, leaves standstill six days, discharges.
Embodiment 2
A treatment process for amylum wastewater, comprises the steps:
Step 1) prepares bio-carrier:
A) following each raw material for standby is taken according to weight part, wherein, stalk 2 parts, silica-gel powder 2 parts, chitin 3 parts, kaolin 4 parts, starch ethers 6 parts, polyacrylamide 9 parts, polyvinyl alcohol 12 parts, 30 parts, water; Wherein, the particle diameter of silica-gel powder is 200 orders; Stalk is wheat stalk;
B) stalk pulverizer is pulverized, then add kaolin, mix, be ground to 100 object mixed powders;
C) by silica-gel powder, chitin, starch ethers, polyacrylamide, polyvinyl alcohol and water add in stirred reactor successively, 500 turns/min stirs 10min, then add step B) mixed powder, 500 turns/min stirs 3min, standing 12 hours subsequently, finally be placed in 60 DEG C to dry to moisture content 5%(parts by weight), obtain bio-carrier;
Step 2) prepare biotechnological formulation:
By subtilis, Acidithiobacillus ferrooxidans strain GF, it is 1 × 10 that Acinetobacter bauamnnii and Sphingomonas are cultured to concentration respectively
7the bacterium liquid of individual/ml, it is 1 × 10 that scenedesmus obliquus and chlorella are cultured to concentration respectively
5the algae liquid of individual/ml; By the subtilis liquid of above-mentioned cultivation, Acidithiobacillus ferrooxidans strain GF liquid, Acinetobacter bauamnnii liquid, Sphingomonas liquid, scenedesmus obliquus liquid and chlorella liquid mix according to the volume ratio of 3:2:2:1:1:1, leave standstill 6 hours, obtain mixing liquid; Bio-carrier mixing liquid and step 1) prepared is according to the quality of 1:2 than mixing and stirring, and room temperature fermentation 24-36h, being dried to water content is 10%(parts by weight), to obtain final product.Wherein, subtilis is (Bacillus subtilis) CGMCC NO:2947 (can see CN101838621A), and Acidithiobacillus ferrooxidans strain GF is that (Acidithiobacillus ferrooxidans) ATCC 53993(can see document A genomic island provides Acidithiobacillus ferrooxidans ATCC 53993 additional copper resistance:a possible competitive advantage. Appl Microbiol Biotechnol. 2011);
, Acinetobacter bauamnnii is (Acinetobacter baumanii) for ATCC 19606(can see Infect Immun. 2012 Mar; 80 (3): 1015-24), Sphingomonas is that (Sphingomonas sp.) CGMCC NO.4589(can see CN102168054A), scenedesmus obliquus is that (Scenedesmus obliquus) CGMCC No.8015(can see CN103484374A), chlorella is (Chlorella sp.) CGMCC NO:3037(CN101565675A).
Step 3) wastewater treatment:
Amylum wastewater flows through grid, removes suspended substance in water, enters equalizing tank subsequently, and the pH regulating waste water is 6.5-7, then according to 5g biotechnological formulation: the addition of 1 cubic metre of waste water adds biotechnological formulation, leaves standstill six days, discharges.
Embodiment 3
The effect test for the treatment of process of the present invention:
Control group 1: use sawdust carrier; Microorganism type is identical with test group; Processing mode: after adding three days continuously, every day 5g/ cubic meter, then leave standstill six days, check processing the results are shown in Table 1.
Control group 2: carrier is identical with embodiment 2, difference is, only adds four kinds of bacterium, but does not add algae; Processing mode: first day adds 5g/ cubic meter, then leave standstill six days, check processing the results are shown in Table 1.
Test group: according to the technique of the embodiment of the present invention 2.
Table 1
| Index | Before process (mg/L) | After process (control group 1) (mg/L) | After process (control group 2) (mg/L) | (test group) (mg/L) after process |
| COD | 2981 | 36.9 | 78.3 | 7.2 |
| SS | 623 | 32.1 | 43.6 | 4.9 |
| NH3-N | 127 | 8.2 | 12.9 | 3.5 |
Conclusion: treatment process simple possible of the present invention, removes pollutent effective, with low cost; Bio-carrier prepared by the present invention is large empty reticulated structure, and microorganic adhesion is effective, and drops into number of times and weight and all reduce, and long service life, without the need to repeatedly throwing in, having saved cost, having reduced the generation of mud.Mushroom and algae reasonable compatibility in microbial preparation of the present invention, can remove the COD in waste water effectively, SS and ammonia nitrogen pollutant.
Although above done detailed explanation with general explanation and embodiment to this case, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, amendment done without departing from theon the basis of the spirit of the present invention or improvement, all belong to the scope of protection of present invention.
Claims (3)
1. a treatment process for amylum wastewater, is characterized in that, described method comprises the steps: that step 1) prepares bio-carrier, step 2) prepare biotechnological formulation, step 3) wastewater treatment.
2. method according to claim 1, is characterized in that, described method comprises the steps:
Step 1) prepares bio-carrier:
A) following each raw material for standby is taken according to weight part, wherein, stalk 1-2 part, silica-gel powder 1-2 part, chitin 2-3 part, kaolin 3-4 part, starch ethers 5-6 part, polyacrylamide 7-9 part, polyvinyl alcohol 10-12 part, water 25-30 part;
B) stalk pulverizer is pulverized, then add kaolin, mix, be ground to 100 object mixed powders;
C) by silica-gel powder, chitin, starch ethers, polyacrylamide, polyvinyl alcohol and water add in stirred reactor successively, 500 turns/min stirs 10min, then add step B) mixed powder, 500 turns/min stirs 3min, standing 12 hours subsequently, finally be placed in 60 DEG C to dry to moisture content 5%, obtain bio-carrier;
Step 2) prepare biotechnological formulation:
By subtilis, Acidithiobacillus ferrooxidans strain GF, it is 1 × 10 that Acinetobacter bauamnnii and Sphingomonas are cultured to concentration respectively
7the bacterium liquid of individual/ml, it is 1 × 10 that scenedesmus obliquus and chlorella are cultured to concentration respectively
5the algae liquid of individual/ml; By the subtilis liquid of above-mentioned cultivation, Acidithiobacillus ferrooxidans strain GF liquid, Acinetobacter bauamnnii liquid, Sphingomonas liquid, scenedesmus obliquus liquid and chlorella liquid mix according to the volume ratio of 3:2:2:1:1:1, leave standstill 6 hours, obtain mixing liquid; Bio-carrier prepared by mixing liquid and step 1) according to the quality of 1:2 than mixing and stirring, room temperature fermentation 24-36h, being dried to water content is 10%, to obtain final product;
Step 3) wastewater treatment:
Amylum wastewater flows through grid, removes suspended substance, enters equalizing tank subsequently, regulates the pH of waste water to be 6.5-7, then according to 5g biotechnological formulation: the addition of 1 cubic metre of waste water adds step 2) biotechnological formulation prepared, leave standstill six days, discharge.
3. method according to claim 2, is characterized in that, preferably, the particle diameter of prime number silica-gel powder is 200 orders; Described stalk is maize straw or wheat stalk.
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Cited By (8)
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| CN105236593A (en) * | 2015-11-13 | 2016-01-13 | 济南昊泽环保科技有限公司 | Waste water treatment agent for bean vermicelli production enterprise and waste water treatment method |
| CN105948399A (en) * | 2016-06-22 | 2016-09-21 | 内蒙古阜丰生物科技有限公司 | Biochemical agent for xanthan gum production wastewater and preparation method thereof |
| CN107265687A (en) * | 2017-08-17 | 2017-10-20 | 齐齐哈尔龙江阜丰生物科技有限公司 | A kind of cornstarch process water utilization process |
| CN110902950A (en) * | 2019-12-02 | 2020-03-24 | 齐齐哈尔龙江阜丰生物科技有限公司 | Treatment method of starch industrial wastewater |
| CN110921841A (en) * | 2019-12-02 | 2020-03-27 | 齐齐哈尔龙江阜丰生物科技有限公司 | Biochemical preparation for repairing starch industrial wastewater |
| CN112005950A (en) * | 2020-07-23 | 2020-12-01 | 湖南盛义建设有限公司 | Ecological farmland system and construction method thereof |
| CN113957022A (en) * | 2021-12-09 | 2022-01-21 | 河北科技大学 | Preparation method and application of compound microbial agent |
| CN116750870A (en) * | 2023-08-16 | 2023-09-15 | 山东铭浩环保科技有限公司 | Method for removing total nitrogen from wastewater |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236593A (en) * | 2015-11-13 | 2016-01-13 | 济南昊泽环保科技有限公司 | Waste water treatment agent for bean vermicelli production enterprise and waste water treatment method |
| CN105948399A (en) * | 2016-06-22 | 2016-09-21 | 内蒙古阜丰生物科技有限公司 | Biochemical agent for xanthan gum production wastewater and preparation method thereof |
| CN107265687A (en) * | 2017-08-17 | 2017-10-20 | 齐齐哈尔龙江阜丰生物科技有限公司 | A kind of cornstarch process water utilization process |
| CN107265687B (en) * | 2017-08-17 | 2020-09-01 | 齐齐哈尔龙江阜丰生物科技有限公司 | Corn starch process water recycling process |
| CN110902950A (en) * | 2019-12-02 | 2020-03-24 | 齐齐哈尔龙江阜丰生物科技有限公司 | Treatment method of starch industrial wastewater |
| CN110921841A (en) * | 2019-12-02 | 2020-03-27 | 齐齐哈尔龙江阜丰生物科技有限公司 | Biochemical preparation for repairing starch industrial wastewater |
| CN110902950B (en) * | 2019-12-02 | 2022-02-11 | 齐齐哈尔龙江阜丰生物科技有限公司 | Treatment method of starch industrial wastewater |
| CN110921841B (en) * | 2019-12-02 | 2022-04-08 | 齐齐哈尔龙江阜丰生物科技有限公司 | Biochemical preparation for repairing starch industrial wastewater |
| CN112005950A (en) * | 2020-07-23 | 2020-12-01 | 湖南盛义建设有限公司 | Ecological farmland system and construction method thereof |
| CN113957022A (en) * | 2021-12-09 | 2022-01-21 | 河北科技大学 | Preparation method and application of compound microbial agent |
| CN116750870A (en) * | 2023-08-16 | 2023-09-15 | 山东铭浩环保科技有限公司 | Method for removing total nitrogen from wastewater |
| CN116750870B (en) * | 2023-08-16 | 2023-10-27 | 山东铭浩环保科技有限公司 | Method for removing total nitrogen from wastewater |
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