CN105523671A - System and process for treating sesame washing sewage - Google Patents
System and process for treating sesame washing sewage Download PDFInfo
- Publication number
- CN105523671A CN105523671A CN201610025397.9A CN201610025397A CN105523671A CN 105523671 A CN105523671 A CN 105523671A CN 201610025397 A CN201610025397 A CN 201610025397A CN 105523671 A CN105523671 A CN 105523671A
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- Prior art keywords
- sewage
- cleaning sullage
- grease
- oil
- add
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/22—Treatment of water, waste water, or sewage by freezing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a system and process for treating sesame washing sewage. The process comprises the following steps of (1) cooling washing sewage to 0-5 DEG C in a controlled manner for 10-15 minutes; (2) removing solidified oil-fat on the surface of the washing sewage in a mechanical way; (3) adding ammonium chloride and polyaluminum ferric chloride into the sewage obtained in the step (2), conducting uniform stirring, adding NaOH into the solution, regulating the pH value of the solution to be 7-10, conducting a hydrolysis reaction to generate colloid to adsorb oil droplets on the one hand, conducting polymerization operation to form macro-molecular polymers at different degrees on the other hand, and removing oil drops in the sewage by means of adsorption and bridging operation; and (4) naturally settling the sewage obtained in the step (3) for 24-48 hours, and discharging supernatant water. According to the process, the steps are linked in order, oil-fat in the washing sewage can be completely removed respectively by means of controlled cooling, mechanical oil-removing and chemical oil-removing, the oil-fat sewage treatment effect is good, and the treated sewage can be directly discharged.
Description
Technical field
The invention belongs to technical field of sewage treatment equipment, especially relate to a kind of sesame cleaning sullage treatment system, also relate to a kind for the treatment of process of this system.
Background technology
Sesame is rich in grease and is used by people to extract sesame oil for a long time, as condiment and the industrial production raw material of daily dish.In grease production enterprise, the production oil-producing technique of sesame comprises the multiple working procedures such as look choosing, cleaning, parch and oil refining, and wherein matting comprises washing and dehydration, so that follow-up parch operation.Current sesame per ton cleaning needs 2 ?3 tons of clear water, containing grease and a small amount of earth dust in water after cleaned, and these rinse water are discharged in tank, because grease is decomposed by the microorganisms fermentation after for some time, as easy as rolling off a log generation foul gas, this phenomenon is especially serious in summer, foul gas causes around whole plant area and stinks to high heaven, if directly discharge enters river, easily cause water pollution, be therefore badly in need of addressing this problem.
Chinese invention patent (publication number is CN104891746A) discloses a kind of equipment removing grease factory waste water foul odour material, comprise bio-reactor, settling tank, mud return line, biological respinse wall is provided with wastewater inlet pipe and overflow port, wastewater inlet pipe is arranged on the bottom of biological respinse wall, overflow port is arranged on the top of biological respinse wall, the bottom in bio-reactor is stretched in wastewater inlet pipe one end, stretch on the wastewater inlet pipe in bio-reactor and connect through many equally distributed arms, every root arm is provided with some posticums, the wastewater inlet pipe the other end stretches out and connects waste water source outward at bio-reactor, waste water flows into the arm in bio-reactor by wastewater inlet pipe, the posticum of waste water on arm evenly enters in bio-reactor, the wastewater inlet pipe stretched out outside bio-reactor is provided with control gate valve, chemicals dosing plant, chemicals dosing plant is provided with chemical feed pipe and connects wastewater inlet pipe, chemicals dosing plant passes through chemical feed pipe, wastewater inlet pipe is to dosing in described bio-reactor, bio-reactor top is provided with bio-reactor water leg along inwall, bio-reactor water leg connects overflow port, in bio-reactor, stirrer is installed, described settling tank is that Upper cylindrical shape and lower cone shape connect and compose vertical sedimentation basin, settling tank top wall is provided with settling tank water inlet pipe and water outlet, bottom settling tank, conical end is provided with sludge outlet, pipe core is provided with in settling tank, shore pipe and settling tank water leg, pipe core is arranged on the centre in settling tank, pipe core connects the overflow port of bio-reactor by settling tank water inlet pipe, the settling tank water inlet pipe that water in bio-reactor connects through overflow port and pipe core enter settling tank, settling tank water leg is arranged in settling tank upper inside wall, shore pipe upper end connects settling tank water leg, shore pipe lower end is arranged on close to sludge outlet place, shore pipe is provided with Y-tube, shore pipe is connected described wastewater inlet pipe by Y-tube with described mud return line.Device structure of the present invention is comparatively complicated, and can only simply deodorizing, and cannot reach oil wastewater ideal process result, the sewage processed also needs sedimentation for some time just can discharge.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind of sesame cleaning sullage treatment process, greasy sewage treatment effect is good, and the sewage after process can directly discharge.
The technical scheme that the present invention solves the employing of its technical problem is: a kind of sesame cleaning sullage treatment process, specifically carries out according to the following steps:
(1) cleaning sullage is forced to be cooled to 0-5 DEG C, keep 10-15min;
(2) mechanically the curing grease on cleaning sullage surface is removed;
(3) ammonium chloride and aluminium iron polychloride is added in the sewage obtained to step (2), stir, add NaOH again, the pH value of regulator solution is 7-10, there is hydrolysis reaction on the one hand and generate colloid absorption oil droplet, there is polymerization operation formation high polymer in various degree on the other hand, removed the oil droplet in sewage by absorption, bridging operation;
(4) natural subsidence 24-48h is carried out to the sewage that step (3) obtains, discharge upper strata clear water.
The ammonium chloride add-on added in described step (3) is 0.02-0.05mg/L, and aluminium iron polychloride add-on is 0.5-1.5mg/L.
Described step (4) also comprises in the sewage obtained to step (3) and first adds compound flocculating agent polyacrylamide and white carbon black, and polyacrylamide add-on is 0.05-0.1mg/L, white carbon black add-on 0.2-0.3mg/L.
Another object of the present invention is to provide a kind of sesame cleaning sullage treatment system, is characterized in comprising: refrigerating unit, has horizontal tank and a case, the built-in cooling body of described case, cools cleaning sullage for forcing, the grease in solidification sewage; Mechanical oil removal equipment, have one with the inclination tank of described horizontal tank and the adsorption roller that is placed on inclination tank, for removing the grease solidified; Electrochemical deoiling device, has a reactor and settling tank, and described reactor is provided with a medicament and adds window, and the sewage containing a small amount of grease enters reactor, reacts with medicament, and then flows into settling tank precipitation, then gives off the water quality meeting national standard.
The present invention improves further, described case comprises steel plate framework and built-in heat insulation layer, steel plate framework is rectangular parallelepiped, steel plate framework symmetry offers gap, horizontal trough rack is located in the gap of steel plate framework, cleaning sullage slow transits through in case, reduces the solubleness of grease, and the grease in sewage can be solidified.
The present invention improves further, and the angle of inclination of the inclination tank of described mechanical oil removal equipment is 1-3 °.
Compared with prior art, the invention has the beneficial effects as follows:
1) processing step of the present invention is connected in order, and respectively by the large step of pressure cooling, mechanical oil removing and electrochemical deoiling three, the grease in cleaning sullage can be removed completely, and greasy sewage treatment effect is good, and the sewage after process can directly discharge;
2) cleaning sullage processes by technique of the present invention first thoroughly, this is the progress maximum with existing production technique, and the water after process can be used for irrigating and cleaning production site, and the rationalization achieving resource uses, reduce production cost, also protect environment;
3) system of the present invention, structure is simple, and occupied ground is little, and result of use is obvious, and be not only applicable to the process of cleaning sullage, can also be used for the process of sanitary sewage, cost of investment is few, reduces the input of the environmental protection equipment of enterprise.
Accompanying drawing explanation
Fig. 1 is the structural representation of sesame cleaning sullage treatment system of the present invention;
Fig. 2 is the schema of sesame cleaning sullage treatment process of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is further described.
As shown in Figure 1, sesame cleaning sullage treatment system of the present invention comprises: refrigerating unit, has horizontal tank 1 and a case 2, the built-in cooling body 3 of described case, cools cleaning sullage for forcing, the grease in solidification sewage; Mechanical oil removal equipment, have one with the inclination tank 4 of described horizontal tank and the adsorption roller 5 that is placed on inclination tank, for removing the grease solidified; Electrochemical deoiling device, has a reactor 6 and settling tank 7, and described reactor is provided with a medicament and adds window, sewage containing a small amount of grease enters reactor, react with medicament, and then flow into settling tank precipitation, then give off the water quality meeting national standard.
In the present embodiment, described case comprises steel plate framework and built-in heat insulation layer, steel plate framework is rectangular parallelepiped, steel plate framework symmetry offers gap, horizontal trough rack is located in the gap of steel plate framework, cleaning sullage slow transits through in case, reduces the solubleness of grease, and the grease in sewage can be solidified.
In the present embodiment, the angle of inclination of the inclination tank of described mechanical oil removal equipment is 1-3 °.
Embodiment 1
As shown in Figure 2, a kind of sesame cleaning sullage treatment process of the present invention, specifically carries out according to the following steps:
S101, by cleaning sullage force be cooled to 0 DEG C, keep 15min;
S102, mechanically the curing grease on cleaning sullage surface to be removed;
Ammonium chloride and aluminium iron polychloride is added in S103, the sewage that obtains to step S102, ammonium chloride add-on is 0.05mg/L, aluminium iron polychloride add-on is 1.0mg/L, stir, add NaOH again, the pH value of regulator solution is 10, hydrolysis reaction occurs on the one hand and generates colloid absorption oil droplet, there is polymerization operation formation high polymer in various degree on the other hand, removed the oil droplet in sewage by absorption, bridging operation;
First add compound flocculating agent polyacrylamide and white carbon black in S104, the sewage that obtains to step S103, polyacrylamide add-on is 0.1mg/L, white carbon black add-on 0.3mg/L, natural subsidence 48h, discharge upper strata clear water.
Embodiment 2
A kind of sesame cleaning sullage treatment process, specifically carries out according to the following steps:
S101, by cleaning sullage force be cooled to 5 DEG C, keep 15min;
S102, mechanically the curing grease on cleaning sullage surface to be removed;
Ammonium chloride and aluminium iron polychloride is added in S103, the sewage that obtains to step S102, ammonium chloride add-on is 0.02mg/L, aluminium iron polychloride add-on is 1.2mg/L, stir, add NaOH again, the pH value of regulator solution is 8, hydrolysis reaction occurs on the one hand and generates colloid absorption oil droplet, there is polymerization operation formation high polymer in various degree on the other hand, removed the oil droplet in sewage by absorption, bridging operation;
First add compound flocculating agent polyacrylamide and white carbon black in S104, the sewage that obtains to step S103, polyacrylamide add-on is 0.1mg/L, white carbon black add-on 0.3mg/L, natural subsidence 24h, discharge upper strata clear water.
Embodiment 3
A kind of sesame cleaning sullage treatment process, specifically carries out according to the following steps:
S101, by cleaning sullage force be cooled to 0 DEG C, keep 10min;
S102, mechanically the curing grease on cleaning sullage surface to be removed;
Ammonium chloride and aluminium iron polychloride is added in S103, the sewage that obtains to step S102, ammonium chloride add-on is 0.04mg/L, aluminium iron polychloride add-on is 0.8mg/L, stir, add NaOH again, the pH value of regulator solution is 7, hydrolysis reaction occurs on the one hand and generates colloid absorption oil droplet, there is polymerization operation formation high polymer in various degree on the other hand, removed the oil droplet in sewage by absorption, bridging operation;
First add compound flocculating agent polyacrylamide and white carbon black in S104, the sewage that obtains to step S103, polyacrylamide add-on is 0.05mg/L, white carbon black add-on 0.3mg/L, natural subsidence 48h, discharge upper strata clear water.
By above embodiment, processing step of the present invention is connected in order, respectively by the large step of pressure cooling, mechanical oil removing and electrochemical deoiling three, the grease in cleaning sullage can be removed completely, greasy sewage treatment effect is good, and the sewage after process can directly discharge.
Claims (6)
1. a sesame cleaning sullage treatment process, is characterized in that, specifically carries out according to the following steps:
(1) cleaning sullage is forced to be cooled to 0-5 DEG C, keep 10-15min;
(2) mechanically the curing grease on cleaning sullage surface is removed;
(3) ammonium chloride and aluminium iron polychloride is added in the sewage obtained to step (2), stir, add NaOH again, the pH value of regulator solution is 7-10, there is hydrolysis reaction on the one hand and generate colloid absorption oil droplet, there is polymerization operation formation high polymer in various degree on the other hand, removed the oil droplet in sewage by absorption, bridging operation;
(4) natural subsidence 24-48h is carried out to the sewage that step (3) obtains, discharge upper strata clear water.
2. sesame cleaning sullage treatment process according to claim 1, is characterized in that, the ammonium chloride add-on added in described step (3) is 0.02-0.05mg/L, and aluminium iron polychloride add-on is 0.5-1.5mg/L.
3. sesame cleaning sullage treatment process according to claim 1, it is characterized in that, described step (4) also comprises in the sewage obtained to step (3) and first adds compound flocculating agent polyacrylamide and white carbon black, polyacrylamide add-on is 0.05-0.1mg/L, white carbon black add-on 0.2-0.3mg/L.
4. a sesame cleaning sullage treatment system, is characterized in that, this system comprises: refrigerating unit, there is a horizontal tank (1) and case (2), the built-in cooling body of described case (3), cools cleaning sullage for forcing, the grease in solidification sewage; Mechanical oil removal equipment, have one with the inclination tank (4) of described horizontal tank and the adsorption roller (5) that is placed on inclination tank, for removing the grease solidified; Electrochemical deoiling device, there is a reactor (6) and settling tank (7), described reactor is provided with a medicament and adds window, sewage containing a small amount of grease enters reactor, react with medicament, and then flow into settling tank precipitation, then give off the water quality meeting national standard.
5. sesame cleaning sullage treatment system according to claim 4, it is characterized in that, described case (2) comprises steel plate framework and built-in heat insulation layer, steel plate framework is rectangular parallelepiped, steel plate framework symmetry offers gap, and horizontal trough rack is located in the gap of steel plate framework, and cleaning sullage slow transits through in case, reduce the solubleness of grease, and the grease in sewage can be solidified.
6. the sesame cleaning sullage treatment system according to claim 4 or 5, is characterized in that, the angle of inclination of the inclination tank (4) of described mechanical oil removal equipment is 1-3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025397.9A CN105523671A (en) | 2016-01-14 | 2016-01-14 | System and process for treating sesame washing sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025397.9A CN105523671A (en) | 2016-01-14 | 2016-01-14 | System and process for treating sesame washing sewage |
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| CN105523671A true CN105523671A (en) | 2016-04-27 |
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| CN201610025397.9A Pending CN105523671A (en) | 2016-01-14 | 2016-01-14 | System and process for treating sesame washing sewage |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2185336C1 (en) * | 2001-07-16 | 2002-07-20 | Вершинин Николай Петрович | Method of neutralization of industrial sewage containing oil products and organic components |
| CN203683292U (en) * | 2013-12-06 | 2014-07-02 | 重庆市炬泉环保工程有限公司 | Kitchen wastewater treatment system |
| CN104355439A (en) * | 2014-10-23 | 2015-02-18 | 西安华陆环保设备有限公司 | Oilfield sewage treatment device |
| CN204661483U (en) * | 2015-03-31 | 2015-09-23 | 北京嘉禾旭牧科技有限公司 | A kind of oily-water seperating equipment |
-
2016
- 2016-01-14 CN CN201610025397.9A patent/CN105523671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2185336C1 (en) * | 2001-07-16 | 2002-07-20 | Вершинин Николай Петрович | Method of neutralization of industrial sewage containing oil products and organic components |
| CN203683292U (en) * | 2013-12-06 | 2014-07-02 | 重庆市炬泉环保工程有限公司 | Kitchen wastewater treatment system |
| CN104355439A (en) * | 2014-10-23 | 2015-02-18 | 西安华陆环保设备有限公司 | Oilfield sewage treatment device |
| CN204661483U (en) * | 2015-03-31 | 2015-09-23 | 北京嘉禾旭牧科技有限公司 | A kind of oily-water seperating equipment |
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Application publication date: 20160427 |