CN103449630A - Treatment method for gelatin production wastewater - Google Patents
Treatment method for gelatin production wastewater Download PDFInfo
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- CN103449630A CN103449630A CN2013103906494A CN201310390649A CN103449630A CN 103449630 A CN103449630 A CN 103449630A CN 2013103906494 A CN2013103906494 A CN 2013103906494A CN 201310390649 A CN201310390649 A CN 201310390649A CN 103449630 A CN103449630 A CN 103449630A
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- waste water
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- wastewater
- gelatin production
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a treatment method for gelatin production wastewater, which comprises the following treatment steps: (1) enabling gelatin production wastewater to pass through a horizontal flow grit chamber; (2) adding smectite flour in the gelatin production wastewater passing through the horizontal flow grit chamber, wherein the adding amount of the smectite flour accounts for 2.3-2.7 wt % of the weight of the gelatin production wastewater; (3) stirring the obtained mixture after the smectite flour is added, and adding aluminium oxide powder into the wastewater while stirring, wherein the adding amount of the aluminium oxide powder accounts for 1.2-1.6 wt % of the weight of the gelatin production wastewater; (4) after the wastewater is stirred 1 hour, standing the wastewater 5 hours; (5) after the wastewater is stood, separating liquid supernatant from precipitations; (6) after separating, enabling the liquid supernatant to pass through membranes for filtering, wherein the liquid supernatant respectively passes through a membrane with a molecular weight of 2000-2500 and a membrane with a molecular weight of 150-300; and (7) collecting permeated liquid, wherein the permeated liquid is treated gelatin production wastewater. In the treated gelatin production wastewater, the total amount of ammonia nitrogen is reduced from 311 mg/L to 7 -12 mg/L, and the CODcr value is reduced from 648 mg/L to 14-19 mg/L.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste water, particularly relate to a kind for the treatment of process of gelatin waste water.
Background technology
Gelatin can produce a lot of waste water in process of production, wherein just is mixed with gelatin.In gelatin waste water, TAN and chemical oxygen demand value are higher, need to its carry out a biological disposal upon and chemical treatment after can discharge.In order to reduce TAN and chemical oxygen demand wherein, most enterprises have adopted biodegradable method to be processed, but the biodegradation method Deal with Time is long, effect is also comparatively general, if therefore can adopt method of chemical treatment and physical treatment process to be processed, not only can shorten the time, may can also improve its efficiency.
Summary of the invention
The technical problem solved: TAN and the higher problem of CODcr value in gelatin waste water.
Technical scheme: the invention discloses a kind for the treatment of process of gelatin waste water, treatment step is as follows: (1) passes through horizontal-flow grit chamber by gelatin waste water; (2) will add montmorillonite powder in the gelatin waste water by after settling pit, 2.3wt%～2.7wt% that addition is gelatin waste water weight; (3) stirred after the interpolation montmorillonite powder, added aluminium oxide powder again in waste water in the time of stirring, 1.2wt%～1.6wt% that aluminium oxide powder weight is gelatin waste water weight; (4) waste water is stirred to standing 5h after 1h; (5) after standing by supernatant liquor and precipitate and separate; (6) after the separation, supernatant liquor is passed through to membrane filtration, the film that is 2000～2500 by molecular weight respectively and 150～300 film.(7) collect and see through liquid, see through liquid for gelatin waste water after processing.
Beneficial effect: gelatin waste water is by after this disposal methods, and its TAN 311mg/L is down to 7mg/L～12mg/L, and the CODcr value is down to 14mg/L～19mg/L from 648mg/L.
Embodiment
Embodiment 1
(1) gelatin waste water is passed through to horizontal-flow grit chamber; (2) will add montmorillonite powder in the gelatin waste water by after settling pit, the 2.3wt% that addition is gelatin waste water weight; (3) stirred after the interpolation montmorillonite powder, added aluminium oxide powder again in waste water in the time of stirring, the 1.6wt% that aluminium oxide powder weight is gelatin waste water weight; (4) waste water is stirred to standing 5h after 1h; (5) after standing by supernatant liquor and precipitate and separate; (6) after the separation, supernatant liquor is passed through to membrane filtration, the film that is 2500 by molecular weight respectively and 300 film.(7) collect and see through liquid, see through liquid for gelatin waste water after processing.
Embodiment 2
(1) gelatin waste water is passed through to horizontal-flow grit chamber; (2) will add montmorillonite powder in the gelatin waste water by after settling pit, the 2.7wt% that addition is gelatin waste water weight; (3) stirred after the interpolation montmorillonite powder, added aluminium oxide powder again in waste water in the time of stirring, the 1.2wt% that aluminium oxide powder weight is gelatin waste water weight; (4) waste water is stirred to standing 5h after 1h; (5) after standing by supernatant liquor and precipitate and separate; (6) after the separation, supernatant liquor is passed through to membrane filtration, the film that is 2000 by molecular weight respectively and 150 film.(7) collect and see through liquid, see through liquid for gelatin waste water after processing.
Embodiment 3
(1) gelatin waste water is passed through to horizontal-flow grit chamber; (2) will add montmorillonite powder in the gelatin waste water by after settling pit, the 2.5wt% that addition is gelatin waste water weight; (3) stirred after the interpolation montmorillonite powder, added aluminium oxide powder again in waste water in the time of stirring, the 1.4wt% that aluminium oxide powder weight is gelatin waste water weight; (4) waste water is stirred to standing 5h after 1h; (5) after standing by supernatant liquor and precipitate and separate; (6) after the separation, supernatant liquor is passed through to membrane filtration, the film that is 2500 by molecular weight respectively and 300 film.(7) collect and see through liquid, see through liquid for gelatin waste water after processing.
After treatment, TAN 311mg/L is down to 7mg/L～12mg/L, and the CODcr value is down to 14mg/L～19mg/L from 648mg/L.The result of specific embodiment is as follows:
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| TAN (mg/L) | 7 | 12 | 11 |
| CODcr value (mg/L) | 17 | 14 | 19 |
Claims (5)
1. the treatment process of a gelatin waste water, it is characterized in that treatment step is as follows: (1) passes through horizontal-flow grit chamber by gelatin waste water; (2) will add montmorillonite powder in the gelatin waste water by after settling pit, 2.3wt%～2.7wt% that addition is gelatin waste water weight; (3) stirred after the interpolation montmorillonite powder, added aluminium oxide powder again in waste water in the time of stirring, 1.2wt%～1.6wt% that aluminium oxide powder weight is gelatin waste water weight; (4) waste water is stirred to standing 5h after 1h; (5) after standing by supernatant liquor and precipitate and separate; (6) after the separation, supernatant liquor is passed through to membrane filtration, the film that is 2000～2500 by molecular weight respectively and 150～300 film, (7) are collected and are seen through liquid, and seeing through liquid is gelatin waste water after processing.
2. the treatment process of a kind of gelatin waste water according to claim 1, is characterized in that the 2.7wt% that the montmorillonite powder addition is gelatin waste water weight.
3. the treatment process of a kind of gelatin waste water according to claim 1, is characterized in that the 1.2wt% that aluminium oxide powder weight is gelatin waste water weight.
4. the treatment process of a kind of gelatin waste water according to claim 1, first membrane molecule amount of passing through while it is characterized in that membrane filtration is 2500.
5. the treatment process of a kind of gelatin waste water according to claim 1, second membrane molecule amount passing through while it is characterized in that membrane filtration is 150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103906494A CN103449630A (en) | 2013-09-02 | 2013-09-02 | Treatment method for gelatin production wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103906494A CN103449630A (en) | 2013-09-02 | 2013-09-02 | Treatment method for gelatin production wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN103449630A true CN103449630A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013103906494A Pending CN103449630A (en) | 2013-09-02 | 2013-09-02 | Treatment method for gelatin production wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534618A (en) * | 2018-12-29 | 2019-03-29 | 四川瑞宝生物科技股份有限公司 | A kind of gelatine wastewater processing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100416476B1 (en) * | 2003-08-12 | 2004-01-31 | 주식회사 한남코퍼레이션 | A method for efficient controlling of total nitrogen content in waste water produced in manufacturing process of copper phthalocyanine |
| CN102030438A (en) * | 2010-11-16 | 2011-04-27 | 湖南康盟环保科技有限公司 | Treatment method of ammonia nitrogen wastewater |
| CN102976563A (en) * | 2012-12-19 | 2013-03-20 | 山东名科环保工程有限公司 | Treatment method of gelatin wastewater |
-
2013
- 2013-09-02 CN CN2013103906494A patent/CN103449630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100416476B1 (en) * | 2003-08-12 | 2004-01-31 | 주식회사 한남코퍼레이션 | A method for efficient controlling of total nitrogen content in waste water produced in manufacturing process of copper phthalocyanine |
| CN102030438A (en) * | 2010-11-16 | 2011-04-27 | 湖南康盟环保科技有限公司 | Treatment method of ammonia nitrogen wastewater |
| CN102976563A (en) * | 2012-12-19 | 2013-03-20 | 山东名科环保工程有限公司 | Treatment method of gelatin wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534618A (en) * | 2018-12-29 | 2019-03-29 | 四川瑞宝生物科技股份有限公司 | A kind of gelatine wastewater processing system |
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Application publication date: 20131218 |