CN103435186A - Treatment method for grease-containing wastewater - Google Patents
Treatment method for grease-containing wastewater Download PDFInfo
- Publication number
- CN103435186A CN103435186A CN2013103751012A CN201310375101A CN103435186A CN 103435186 A CN103435186 A CN 103435186A CN 2013103751012 A CN2013103751012 A CN 2013103751012A CN 201310375101 A CN201310375101 A CN 201310375101A CN 103435186 A CN103435186 A CN 103435186A
- Authority
- CN
- China
- Prior art keywords
- grease
- layer
- water layer
- treatment
- activated carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a treatment method for grease-containing wastewater. The treatment method for the grease-containing wastewater comprises the following steps: (1) centrifuging for 30-50 min to separate the grease-containing wastewater, wherein the rotation speed of a centrifuge is 5000-5800 rpm; (2) separating an upper grease layer and a lower water layer after centrifugation, adding active carbon powder into the lower water layer, and meanwhile stirring at the rotation speed of 100-150 rpm for 20-25 min, wherein the weight of the active carbon is 3-5 percent the weight of the water layer; (3) naturally settling water layer liquid after the stirring is finished, taking supernatant after the water layer liquid is settled until the heights of the supernatant and the lower flocculent layer do not change, adding magnesium silicate powder, shaking uniformly and naturally settling to obtain an upper water layer after the heights of the upper and lower layers do not change, wherein the amount of added magnesium silicate powder is 4 percent of the weight of the liquid. After treatment by the treatment method, the weight of the grease in the grease-containing wastewater is reduced from 54.1 percent to 0.02-0.05 percent; the treatment method has a good separation effect.
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 that contains oil wastewater.
Background technology
In a lot of food Oils and fats enterprises, because the sewage discharged contains a large amount of greases, so after directly discharging without processing, can a large amount of contaminate environment.Therefore need to be removed and be reclaimed the grease in the waste water of discharge.The density difference of grease and water is larger, usually by centrifugal effect preferably arranged, but in centrifugal rear water, still there is grease to exist, need to further separate grease, grease and water thoroughly could be separated, in water after thoroughly going out, fat content is very low, just can reach the emission standard of sewage.
Summary of the invention
The technical problem solved: in the waste water that contains grease, grease and moisture are from halfway problem.
Technical scheme: the invention discloses a kind for the treatment of process that contains oil wastewater, the treatment process that contains oil wastewater is as follows: the waste water that (1) will contain grease first carries out centrifugal the separation, centrifuge speed is 5000～5800rpm, and the time is 30～50min; (2) centrifugal rear upper strata oil layer and lower aqueous layer are separated, as adding activated carbon powder in lower aqueous layer, 3wt%～5wt% that quality of activated carbon is the water layer quality is stirred simultaneously, and mixing speed is 100～150rpm, and churning time is 20～25min; (3) stir and finish the rear water layer liquid natural subsidence that waits, after being settled down to supernatant liquid and lower floor's batt layer height and not changing, get supernatant liquid, add again the Magnesium Silicate q-agent powder, the 4wt% that Magnesium Silicate q-agent powder add-on is liquid mass, shake up the natural subsidence such as rear, the sedimentation levels height rear acquisition upper aqueous layer that do not change.
Wherein, rotating speed is preferably 5800rpm during centrifugation; During centrifugation, centrifugation time is preferably 50min; While being separated with the activated carbon powder, the 5wt% that preferably quality of activated carbon is the water layer quality.
Beneficial effect: after processing by method of wastewater treatment of the present invention the waste water that contains grease, in the waste water that contains grease, the weight content of grease, from dropping to 0.02～0.05% from 54.1%, has good separating effect.
Embodiment
Embodiment 1
(1) waste water that will contain grease first carries out centrifugal the separation, and centrifuge speed is 5000rpm, and the time is 50min; (2) centrifugal rear upper strata oil layer and lower aqueous layer are separated, as adding activated carbon powder in lower aqueous layer, the 3wt% that quality of activated carbon is the water layer quality is stirred simultaneously, mixing speed 150rpm, and churning time is 20min; (3) stir and finish the rear water layer liquid natural subsidence that waits, after being settled down to supernatant liquid and lower floor's batt layer height and not changing, get supernatant liquid, add again the Magnesium Silicate q-agent powder, the 4wt% that Magnesium Silicate q-agent powder add-on is liquid mass, shake up the natural subsidence such as rear, the sedimentation levels height rear acquisition upper aqueous layer that do not change.
Embodiment 2
(1) waste water that will contain grease first carries out centrifugal the separation, and centrifuge speed is 5400rpm, and the time is 30min; (2) centrifugal rear upper strata oil layer and lower aqueous layer are separated, as adding activated carbon powder in lower aqueous layer, the 4wt% that quality of activated carbon is the water layer quality is stirred simultaneously, mixing speed 100rpm, and churning time is 25min; (3) stir and finish the rear water layer liquid natural subsidence that waits, after being settled down to supernatant liquid and lower floor's batt layer height and not changing, get supernatant liquid, add again the Magnesium Silicate q-agent powder, the 4wt% that Magnesium Silicate q-agent powder add-on is liquid mass, shake up the natural subsidence such as rear, the sedimentation levels height rear acquisition upper aqueous layer that do not change.
Embodiment 3
(1) waste water that will contain grease first carries out centrifugal the separation, and centrifuge speed is 5800rpm, and the time is 40min; (2) centrifugal rear upper strata oil layer and lower aqueous layer are separated, as adding activated carbon powder in lower aqueous layer, the 5wt% that quality of activated carbon is the water layer quality is stirred simultaneously, mixing speed 120rpm, and churning time is 20min; (3) stir and finish the rear water layer liquid natural subsidence that waits, after being settled down to supernatant liquid and lower floor's batt layer height and not changing, get supernatant liquid, add again the Magnesium Silicate q-agent powder, the 4wt% that Magnesium Silicate q-agent powder add-on is liquid mass, shake up the natural subsidence such as rear, the sedimentation levels height rear acquisition upper aqueous layer that do not change.
After processing through embodiment 1, embodiment 2, embodiment 3, in waste water, the weight content of grease drops to respectively 0.02%, 0.04%, 0.05% from 54.1%, all has good separating effect.
Claims (4)
1. a treatment process that contains oil wastewater, it is characterized in that the treatment process that contains oil wastewater is as follows: the waste water that (1) will contain grease first carries out centrifugal the separation, and centrifuge speed is 5000～5800rpm, and the time is 30～50min; (2) centrifugal rear upper strata oil layer and lower aqueous layer are separated, as adding activated carbon powder in lower aqueous layer, 3wt%～5wt% that quality of activated carbon is the water layer quality is stirred simultaneously, and mixing speed is 100～150rpm, and churning time is 20～25min; (3) stir and finish the rear water layer liquid natural subsidence that waits, after being settled down to supernatant liquid and lower floor's batt layer height and not changing, get supernatant liquid, add again the Magnesium Silicate q-agent powder, the 4wt% that Magnesium Silicate q-agent powder add-on is liquid mass, shake up the natural subsidence such as rear, the sedimentation levels height rear acquisition upper aqueous layer that do not change.
2. a kind for the treatment of process that contains oil wastewater according to claim 1, while it is characterized in that centrifugation, rotating speed is 5800rpm.
3. a kind for the treatment of process that contains oil wastewater according to claim 1, while it is characterized in that centrifugation, centrifugation time is 50min.
4. a kind for the treatment of process that contains oil wastewater according to claim 1, while it is characterized in that being separated with the activated carbon powder, the 5wt% that quality of activated carbon is the water layer quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103751012A CN103435186A (en) | 2013-08-26 | 2013-08-26 | Treatment method for grease-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103751012A CN103435186A (en) | 2013-08-26 | 2013-08-26 | Treatment method for grease-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103435186A true CN103435186A (en) | 2013-12-11 |
Family
ID=49688937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103751012A Pending CN103435186A (en) | 2013-08-26 | 2013-08-26 | Treatment method for grease-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103435186A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329017A (en) * | 2010-07-12 | 2012-01-25 | 浙江瑞普环境技术有限公司 | Purification method and equipment of oily wastewater |
| CN102849880A (en) * | 2012-09-24 | 2013-01-02 | 杰瑞能源服务有限公司 | Method for comprehensive treatment of oilfield waste |
-
2013
- 2013-08-26 CN CN2013103751012A patent/CN103435186A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329017A (en) * | 2010-07-12 | 2012-01-25 | 浙江瑞普环境技术有限公司 | Purification method and equipment of oily wastewater |
| CN102849880A (en) * | 2012-09-24 | 2013-01-02 | 杰瑞能源服务有限公司 | Method for comprehensive treatment of oilfield waste |
Non-Patent Citations (2)
| Title |
|---|
| 张雪容等: "石油类分析中硅酸镁吸附剂吸附作用的探讨", 《广东化工》, vol. 38, no. 219, 30 July 2011 (2011-07-30) * |
| 王承智等: "含油废水处理方法综述", 《辽宁师专学报》, vol. 4, no. 1, 31 March 2002 (2002-03-31) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101142928B1 (en) | System for separation of oil and sludge from food waste leachate | |
| CN106883925B (en) | Method for refining and regenerating waste lubricating oil | |
| CN104803499A (en) | All-in-one sewage treatment machine | |
| CN105505557B (en) | A kind of device of continuous extraction and separation kitchen garbage grease | |
| CN110201800B (en) | Device and process for separating coal by using waste oil and fat | |
| US20060162721A1 (en) | Method for processing sugar cane filter cake mud and extracting component products | |
| CN105461096B (en) | A kind of incineration of refuse flyash washing slurries solid-liquid separating method | |
| CN203173864U (en) | Oil water separator adopting gravity oil-removing method | |
| CN103435186A (en) | Treatment method for grease-containing wastewater | |
| CN102757813A (en) | Crude oil processing unit containing electro-desalted sewage oil remover and method of crude oil processing unit | |
| CN108798569A (en) | A kind of waste oil base mud veclamation utilizes method | |
| CN205133521U (en) | Useless emulsion purification unit | |
| CN206661897U (en) | A kind of grease separates biochemical equipment | |
| CN105617999A (en) | Environment-friendly recovered grease decolorizing agent and preparation method thereof | |
| CN209906729U (en) | Vibration oil separator for sesame oil processing | |
| CN203333410U (en) | Oily sewage all-in-one machine treatment device | |
| CN101362028A (en) | Negative-pressure type extraction organic recovery technique | |
| KR102261730B1 (en) | Apparatus for filtering oil | |
| CN202116480U (en) | Fast separating device for middle-layer fat liquor | |
| CN219886010U (en) | Oil residue separating equipment | |
| RU2377280C1 (en) | Vegetable oil refining method | |
| JP2016215171A (en) | Kitchen waste water-purifying agent and kitchen waste water purification method | |
| CN110331037A (en) | A kind of animal fat Degumming method | |
| CN220116293U (en) | Titanium anode for oil-containing wastewater treatment | |
| CN203578026U (en) | Rotary drum device of online centrifugal sewage treatment machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |