CN104108832B - A kind for the treatment of process of potato products factory effluent - Google Patents
A kind for the treatment of process of potato products factory effluent Download PDFInfo
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- CN104108832B CN104108832B CN201410326671.7A CN201410326671A CN104108832B CN 104108832 B CN104108832 B CN 104108832B CN 201410326671 A CN201410326671 A CN 201410326671A CN 104108832 B CN104108832 B CN 104108832B
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- potato products
- factory effluent
- organism
- products factory
- coagulation
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 235000013573 potato product Nutrition 0.000 title claims abstract description 21
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 238000005345 coagulation Methods 0.000 claims abstract description 23
- 230000015271 coagulation Effects 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 14
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000006228 supernatant Substances 0.000 claims description 15
- 239000010802 sludge Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000000855 fermentation Methods 0.000 claims description 6
- 230000004151 fermentation Effects 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000005352 clarification Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 3
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 3
- 239000000701 coagulant Substances 0.000 abstract description 2
- 239000005446 dissolved organic matter Substances 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000000050 nutritive effect Effects 0.000 description 4
- 235000002595 Solanum tuberosum Nutrition 0.000 description 3
- 244000061456 Solanum tuberosum Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000019750 Crude protein Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The treatment process of a kind of potato products factory effluent provided by the invention, it is successively by hydrolysis and acidifying, aerobic fermentation and precipitation, coagulating agent precipitation process; Hydrolysis and acidifying can change the non-solubility organism in original waste water into dissolved organic matter, the organism of wherein difficult for biological degradation is changed into the organism of readily biodegradable, then, promote that the organism in feed liquid is degraded further by aerobic treatment, significantly reduce the COD value in feed liquid, by the mud in coagulation and precipitation removing waste water, it is made to reach emission standard.This technological design is reasonable, and technique is simple, and treatment effect is good, is easy to apply.
Description
Technical field
The present invention relates to the wastewater treatment in processing of farm products field, be specifically related to a kind for the treatment of process of potato products factory effluent.
Background technology
The huge number of potato products, can be processed into refrigerated products, as the intermediate raw material of culinary art; Be processed into fried food product, puffed food, dehydrated products or extracting directly starch etc., in preparation technology, can produce more waste water, main containing crude protein, sugar, pigment etc. in waste water, its intractability is large, and the cost expended is high.
Summary of the invention
The object of the invention is for above problem, provide a kind for the treatment of process of potato products factory effluent, the method technique is simple, and effectively can remove the dirt in potato products factory effluent, the water obtained can be recycled.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is, provide a kind for the treatment of process of potato products factory effluent, concrete steps are:
1) wastewater collection that will produce in potato products production process of acidication process, adding alkali regulates pH to be 6-9, then be hydrolyzed acidifying 20-26 hour in pond, nutritive ingredient is wherein made to carry out fermenting and being hydrolyzed, organism by difficult for biological degradation changes the organism of readily biodegradable into, improve the biodegradability of waste water, for the aerobic fermentation in later stage and biochemical precipitation ready;
2) aerobic fermentation and biochemical settling step 1) material of gained carries out Air Exposure, make the further oxygenolysis of organism ingress of air wherein, control the dissolved oxygen≤2mg/L in material, carry out aerobic fermentation 10-12h again, discharge supernatant liquor after fermentation, the sludge content simultaneously in control feed liquid is at 65-70%; The digest and decompose of microorganism is promoted by aerobic fermentation;
3) to step 2) in the supernatant liquor of discharging add coagulation promotor and carry out coagulation and precipitation, make the upper strata in pond be the water of clarification, lower floor is throw out, is finally separated by upper and lower layer, discharges respectively, and the supernatant liquid of gained can directly discharge; During preparation coagulation promotor, add polymerize aluminum chloride 25kg, polyacrylamide 0.25kg in every 1 ton of water, the pH then adding sodium hydroxide control coagulation promotor is 6-7.2.
Regulate pH to be 6.8-7.2 in described step 1), the time of anaerobically fermenting is 24h.Research shows, the effect of waste water anaerobically fermenting in this pH value range is best.Contriver is drawn by validation trial, step 2) in dissolved oxygen≤2mg/L time ferment effect good, if easily cause anti-digestion or sludge decomposition higher than this numerical value.
Described flocculation accelerator is preparation half an hour before joining feed liquid, raw material wherein can be dissolved completely, guarantee normally carrying out of late phase reaction.
In described potato products factory effluent, COD≤10000mg/L, BOD≤5000mg/LpH is 5-6, ammonia nitrogen≤35mg/L.
Described potato products factory effluent, before debugging, adds active sludge wherein, and its add-on is the 20-30% of waste water weight.Contribute to carrying out later stage fermentation by adding of active sludge, and add active sludge in advance and can guarantee that it better mixes with waste water.
In treatment process of the present invention, hydrolysis object mainly changes the non-solubility organism in original waste water into dissolved organic matter, the organism of wherein difficult for biological degradation is changed into the organism of readily biodegradable, improve the biodegradability of waste water, for follow-up aerobic treatment provides basis; Meanwhile, carry out aerobic treatment by the feed liquid after anaerobic treatment, promote that the organism in feed liquid is degraded further, significantly reduce the COD value in feed liquid.Experienced by twice precipitation in this technique, it is after aerobic fermentation that first time is precipitated, and mainly in order to prevent the loss of active sludge in waste water, fully recycles active sludge; Second time precipitation is after coagulation, by the mud except sub-cloud after precipitating, removes the complete organism of non-natural decomposition thus makes waste water can qualified discharge, or recycle waste water by coagulating agent precipitation.
Embodiment
Further illustrate the present invention below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1:
A treatment process for potato products factory effluent, concrete steps are:
1) the waste water 300m produced in potato washing is collected
3, add alkali and regulate pH to be 6, then carry out anaerobically fermenting 20 hours, make nutritive ingredient wherein carry out fermenting and being hydrolyzed, the organism by difficult for biological degradation changes the organism of readily biodegradable into, improves the biodegradability of waste water;
2) material of step 1) gained carries out Air Exposure, make the further oxygenolysis of organism ingress of air wherein, the dissolved oxygen controlled in material is 1.6mg/L, then carries out aerobic fermentation 12h, discharge supernatant liquor after fermentation, the sludge content simultaneously in control feed liquid is at 65-70%; The digest and decompose of microorganism is promoted by aerobic fermentation;
3) to step 2) in the supernatant liquor of discharging add coagulation promotor and carry out coagulation and precipitation, make the upper strata in pond be the water of clarification, lower floor is throw out, is finally separated by upper and lower layer, discharges respectively, and the supernatant liquid of gained can directly discharge; During preparation coagulation promotor, add polymerize aluminum chloride 25kg, polyacrylamide 0.25kg in every 1 ton of water, the pH then adding sodium hydroxide control coagulation promotor is 7.2.
Embodiment 2:
A treatment process for potato products factory effluent, concrete steps are:
1) the waste water 300m produced in potato washing is collected
3, add alkali and regulate pH to be 9, then carry out anaerobically fermenting 26 hours, make nutritive ingredient wherein carry out fermenting and being hydrolyzed, the organism by difficult for biological degradation changes the organism of readily biodegradable into, improves the biodegradability of waste water;
2) material of step 1) gained carries out Air Exposure, make the further oxygenolysis of organism ingress of air wherein, the dissolved oxygen controlled in material is 1.8mg/L, then carries out aerobic fermentation 11h, discharge supernatant liquor after fermentation, the sludge content simultaneously in control feed liquid is at 65-70%; The digest and decompose of microorganism is promoted by aerobic fermentation;
3) to step 2) in the supernatant liquor of discharging add coagulation promotor and carry out coagulation and precipitation, make the upper strata in pond be the water of clarification, lower floor is throw out, is finally separated by upper and lower layer, discharges respectively, and the supernatant liquid of gained can directly discharge; During preparation coagulation promotor, add polymerize aluminum chloride 25kg, polyacrylamide 0.25kg in every 1 ton of water, the pH then adding sodium hydroxide control coagulation promotor is 6.
Embodiment 3:
A treatment process for potato products factory effluent, concrete steps are:
1) the waste water 300m produced in potato washing is collected
3, add alkali and regulate pH to be 6.8-7.2, then carry out anaerobically fermenting 24 hours, make nutritive ingredient wherein carry out fermenting and being hydrolyzed, the organism by difficult for biological degradation changes the organism of readily biodegradable into, improves the biodegradability of waste water;
2) material of step 1) gained carries out Air Exposure, make the further oxygenolysis of organism ingress of air wherein, the dissolved oxygen controlled in material is 1.5mg/L, then carries out aerobic fermentation 12h, discharge supernatant liquor after fermentation, the sludge content simultaneously in control feed liquid is below 70%; The digest and decompose of microorganism is promoted by aerobic fermentation;
3) to step 2) in the supernatant liquor of discharging add coagulation promotor and carry out coagulation and precipitation, make the upper strata in pond be the water of clarification, lower floor is throw out, is finally separated by upper and lower layer, discharges respectively, and the supernatant liquid of gained can directly discharge; During preparation coagulation promotor, add polymerize aluminum chloride 25kg, polyacrylamide 0.25kg in every 1 ton of water, the pH then adding sodium hydroxide control coagulation promotor is 6.8.
Detected result after part index number in waste water pending in above-described embodiment detects and processes is in table 1.
Table 1
As shown in Table 1, after method process provided by the invention, the waste water obtained has reached relevant waste water three grades of emission standards.
Claims (4)
1. a treatment process for potato products factory effluent, is characterized in that, concrete steps are:
1) wastewater collection that will produce in potato products production process of acidication process, add alkali and regulate pH to be 6.8-7.2, be then hydrolyzed acidifying 24h in pond; And before described acidication, in pond, adding flour and ight soil water is debugged, the BOD value controlled wherein is 300-500mg/L;
2) aerobic fermentation and biochemical settling step 1) material of gained carries out Air Exposure, make the further oxygenolysis of organism ingress of air wherein, control the dissolved oxygen <2mg/L in material, carry out aerobic fermentation 10-12h again, discharge supernatant liquor after fermentation, the sludge content simultaneously in control feed liquid is at 65-70%;
3) to step 2) in the supernatant liquor of discharging add coagulation promotor and carry out coagulation and precipitation, make the upper strata in pond be the water of clarification, lower floor is throw out, is finally separated by upper and lower layer, discharges respectively, and the supernatant liquid of gained can directly discharge; During preparation coagulation promotor, add polymerize aluminum chloride 25kg, polyacrylamide 0.25kg in every 1 ton of water, the pH then adding sodium hydroxide control coagulation promotor is 6-7.2.
2. the treatment process of potato products factory effluent according to claim 1, is characterized in that: described coagulation promotor is preparation half an hour before joining feed liquid.
3. the treatment process of potato products factory effluent according to claim 1, is characterized in that: in described potato products factory effluent, COD≤10000mg/L, BOD≤5000mg/LpH is 5-6, ammonia nitrogen≤35mg/L.
4. the treatment process of potato products factory effluent according to claim 1, is characterized in that: described potato products factory effluent, before debugging, adds active sludge wherein, and its add-on is the 20-30% of waste water weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410326671.7A CN104108832B (en) | 2014-07-10 | 2014-07-10 | A kind for the treatment of process of potato products factory effluent |
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| CN201410326671.7A CN104108832B (en) | 2014-07-10 | 2014-07-10 | A kind for the treatment of process of potato products factory effluent |
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| CN104108832A CN104108832A (en) | 2014-10-22 |
| CN104108832B true CN104108832B (en) | 2015-12-30 |
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| CN105271609A (en) * | 2014-11-26 | 2016-01-27 | 四川中测环境技术有限公司 | Method for processing food product factory waste water |
| CN109052857A (en) * | 2018-09-11 | 2018-12-21 | 江苏环保产业技术研究院股份公司 | A kind of processing method of potato production waste water |
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| US5223140A (en) * | 1992-04-15 | 1993-06-29 | Inland Container Corporation | Biological treatment of combined ink and starch wastewater for use in corrugator adhesive preparation |
| CN101269904B (en) * | 2008-04-29 | 2011-08-10 | 安徽瑞福祥食品有限公司 | Method for wastewater treatment of fermentation groove liquid and uses thereof |
| CN103193366B (en) * | 2013-05-04 | 2014-06-18 | 郑州大学 | Integrated treatment method of corn alcohol wastewater |
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Address after: 443500 Changyang Avenue, Changyang Economic Development Zone, Yichang, Hubei 689 Patentee after: HUBEI RENSEN AGRICULTURAL TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 443500 Changyang Avenue, Changyang Economic Development Zone, Yichang, Hubei 689 Patentee before: HUBEI RSEN AGRICULTURAL TECHNOLOGY DEVELOPMENT CO.,LTD. |
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Effective date of registration: 20180426 Address after: 443599 five group of Bai Shi Ping Village, Changyang dragon boat town, Yichang, Hubei Patentee after: HUBEI HONGYI FERTILIZER INDUSTRY Co.,Ltd. Address before: 443500 Changyang Avenue, Changyang Economic Development Zone, Yichang, Hubei 689 Patentee before: HUBEI RENSEN AGRICULTURAL TECHNOLOGY DEVELOPMENT CO.,LTD. |
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Effective date of registration: 20200921 Address after: 221000 Qianlou Village, Huangji Town, Tongshan District, Xuzhou City, Jiangsu Province, Team 121 Patentee after: Zhuo Houqiao Address before: 443599 five group of Bai Shi Ping Village, Changyang dragon boat town, Yichang, Hubei Patentee before: HUBEI HONGYI FERTILIZER INDUSTRY Co.,Ltd. |
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Effective date of registration: 20201104 Address after: Room 405, 4 / F, building 2, Tianlong business district, No.19 Longgong Road, Donghua community, Dongxiao Town, Xinluo District, Longyan City, Fujian Province Patentee after: Longyan HENGJING Environmental Protection Technology Co.,Ltd. Address before: 221000 Qianlou Village, Huangji Town, Tongshan District, Xuzhou City, Jiangsu Province, Team 121 Patentee before: Zhuo Houqiao |
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