CN103449650A - Treatment method of meat processing wastewater - Google Patents
Treatment method of meat processing wastewater Download PDFInfo
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- CN103449650A CN103449650A CN2013103906920A CN201310390692A CN103449650A CN 103449650 A CN103449650 A CN 103449650A CN 2013103906920 A CN2013103906920 A CN 2013103906920A CN 201310390692 A CN201310390692 A CN 201310390692A CN 103449650 A CN103449650 A CN 103449650A
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Abstract
The invention discloses a treatment method of meat processing wastewater. The treatment method comprises the following treatment steps: (1), carrying out centrifugal treatment on meat processing wastewater, wherein the rotation speed of a centrifugal machine is 3500rpm-4500rpm, and the time of centrifugation is 25 minutes-35 minutes; (2), separating an upper grease layer from a lower water layer; (3), adding sodium bicarbonate into the water layer, wherein the weight of the sodium bicarbonate is 3.6 wt%-4.1 wt% of the weight of wastewater; (4), carrying out an ultrasonic treatment after uniformly stirring the water layer, wherein the ultrasonic power is 100w-125w, and the treatment time is 30 minutes-45 minutes; (5), standing for 5 hours after the ultrasonic treatment is completed; (6), getting liquid supernatant after standing, and enabling the liquid supernatant to pass through a roll type filter membrane with molecular weight of 200-500; and (7), collecting dialysate that passes through the membrane, so as to obtain treated meat processing wastewater. Through the treatment method disclosed by the invention, a BOD (Biochemical Oxygen Demand) value in the meat processing wastewater is lowered to 32mg/L-41mg/L from 653mg/L, and grease content is lowered to 77mg/L-89mg/L from 1552mg/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 meat processing waste water.
Background technology
In the meat product processing waste water, the biological oxygen consumption value is very high, in addition because fat in meat product is more, therefore also can produce a large amount of oil substances in the course of processing of meat-based food, these materials have formed the pollution class material produced in the meat course of processing jointly.The existence of above-mentioned substance, affect the discharge of waste water, needs to reduce the content of its biological oxygen consumption value and grease wherein.By physics settling process and physical partition method combination, pollution substance is wherein removed, may have better treatment effect.
Summary of the invention
The technical problem solved: the higher problem of BOD value and fat content in the meat processing waste water.
Technical scheme: the invention discloses a kind for the treatment of process of meat processing waste water, treatment step is as follows: (1) carries out centrifugal treating by the meat processing waste water, and centrifuge speed is 3500rpm～4500rpm, and centrifugation time is 25min～35min; (2) the upper strata oil layer is separated with lower aqueous layer; (3) add sodium bicarbonate in water layer, 3.6wt%～4.1wt% that sodium bicarbonate weight is waste water weight; (4) the water layer rear supersound process that stirs, ultrasonic power is 100～125w, and the treatment time is 30～45min; (5) the complete rear standing 5h of supersound process; (6) get supernatant liquor after standing end, the rolling filtering membrane that is 200～500 by molecular weight by supernatant liquor.(7) collect by the peritoneal effluent of film the meat processing waste water after being processed.
Meat product processing waste water centrifugal rotational speed is preferably 4500rpm.Sodium bicarbonate weight is preferably the 3.6wt% of waste water weight.Ultrasonic power is preferably 125w.The rolled film molecular weight is preferably 200.
Beneficial effect: the meat processing waste water that this disposal methods is crossed, in the meat processing waste water, the BOD value is down to 32mg/L～41mg/L from 653mg/L, and fat content is down to 77mg/L～89mg/L from 1552mg/L.Treatment process of the present invention can be widely used in the wastewater treatment process of meat packing station.
Embodiment
Embodiment 1
(1) the meat processing waste water is carried out to centrifugal treating, centrifuge speed is 4500rpm, and centrifugation time is 25min; (2) the upper strata oil layer is separated with lower aqueous layer; (3) add sodium bicarbonate in water layer, the 3.6wt% that sodium bicarbonate weight is waste water weight; (4) the water layer rear supersound process that stirs, ultrasonic power is 125w, and the treatment time is 30min; (5) the complete rear standing 5h of supersound process; (6) get supernatant liquor after standing end, the rolling filtering membrane that is 500 by molecular weight by supernatant liquor.(7) collect by the peritoneal effluent of film the meat processing waste water after being processed.
Embodiment 2
(1) the meat processing waste water is carried out to centrifugal treating, centrifuge speed is 3500rpm, and centrifugation time is 35min; (2) the upper strata oil layer is separated with lower aqueous layer; (3) add sodium bicarbonate in water layer, the 4.1wt% that sodium bicarbonate weight is waste water weight; (4) the water layer rear supersound process that stirs, ultrasonic power is 115w, and the treatment time is 45min; (5) the complete rear standing 5h of supersound process; (6) get supernatant liquor after standing end, the rolling filtering membrane that is 300 by molecular weight by supernatant liquor.(7) collect by the peritoneal effluent of film the meat processing waste water after being processed.
Embodiment 3
(1) the meat processing waste water is carried out to centrifugal treating, centrifuge speed is 4000rpm, and centrifugation time is 30min; (2) the upper strata oil layer is separated with lower aqueous layer; (3) add sodium bicarbonate in water layer, the 3.8wt% that sodium bicarbonate weight is waste water weight; (4) the water layer rear supersound process that stirs, ultrasonic power is 100w, and the treatment time is 35min; (5) the complete rear standing 5h of supersound process; (6) get supernatant liquor after standing end, the rolling filtering membrane that is 200 by molecular weight by supernatant liquor.(7) collect by the peritoneal effluent of film the meat processing waste water after being processed.
Before processing, the BOD value of meat processing waste water is 653 mg/L, and fat content is 1552mg/L.After processing, result is as following table:
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| BOD value (mg/L) | 36 | 32 | 41 |
| Fat content (mg/L) | 77 | 89 | 86 |
Claims (5)
1. the treatment process of a meat processing waste water, it is characterized in that treatment step is as follows: (1) carries out centrifugal treating by the meat processing waste water, and centrifuge speed is 3500rpm～4500rpm, and centrifugation time is 25min～35min; (2) the upper strata oil layer is separated with lower aqueous layer; (3) add sodium bicarbonate in water layer, 3.6wt%～4.1wt% that sodium bicarbonate weight is waste water weight; (4) the water layer rear supersound process that stirs, ultrasonic power is 100～125w, and the treatment time is 30～45min; (5) the complete rear standing 5h of supersound process; (6) get supernatant liquor after standing end, the rolling filtering membrane that is 200～500 by molecular weight by supernatant liquor, collect by the peritoneal effluent of film (7), the meat processing waste water after being processed.
2. the treatment process of a kind of meat processing waste water according to claim 1, is characterized in that by meat product processing waste water centrifugal rotational speed be 4500rpm.
3. the treatment process of a kind of meat processing waste water according to claim 1, is characterized in that the 3.6wt% that sodium bicarbonate weight is waste water weight.
4. the treatment process of a kind of meat processing waste water according to claim 1, is characterized in that ultrasonic power is 125w.
5. the treatment process of a kind of meat processing waste water according to claim 1, is characterized in that the rolled film molecular weight is 200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103906920A CN103449650A (en) | 2013-09-02 | 2013-09-02 | Treatment method of meat processing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103906920A CN103449650A (en) | 2013-09-02 | 2013-09-02 | Treatment method of meat processing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103449650A true CN103449650A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103906920A Pending CN103449650A (en) | 2013-09-02 | 2013-09-02 | Treatment method of meat processing wastewater |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211838A (en) * | 2011-03-18 | 2011-10-12 | 海南芳绿源科技开发有限公司 | Method for harmlessly treating livestock and poultry breeding waste water |
| CN102845507A (en) * | 2012-10-08 | 2013-01-02 | 江苏省农业科学院 | Cyclic utilization method and device of poultry slaughtering precooling water based on membrane technology |
| WO2013029615A1 (en) * | 2011-09-02 | 2013-03-07 | Horsens Vand Energi A/S | Method and apparatus for extracting or concentrating carbonaceous compounds from a fluid |
-
2013
- 2013-09-02 CN CN2013103906920A patent/CN103449650A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211838A (en) * | 2011-03-18 | 2011-10-12 | 海南芳绿源科技开发有限公司 | Method for harmlessly treating livestock and poultry breeding waste water |
| WO2013029615A1 (en) * | 2011-09-02 | 2013-03-07 | Horsens Vand Energi A/S | Method and apparatus for extracting or concentrating carbonaceous compounds from a fluid |
| CN102845507A (en) * | 2012-10-08 | 2013-01-02 | 江苏省农业科学院 | Cyclic utilization method and device of poultry slaughtering precooling water based on membrane technology |
Non-Patent Citations (1)
| Title |
|---|
| 刘淑华等: "反渗透技术在食品工业废水处理中的应用研究", 《天津纺织工学院学报》 * |
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Application publication date: 20131218 |