CN201169557Y - Processing system of oil-containing alkaline waste water - Google Patents
Processing system of oil-containing alkaline waste water Download PDFInfo
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- CN201169557Y CN201169557Y CNU2007200158167U CN200720015816U CN201169557Y CN 201169557 Y CN201169557 Y CN 201169557Y CN U2007200158167 U CNU2007200158167 U CN U2007200158167U CN 200720015816 U CN200720015816 U CN 200720015816U CN 201169557 Y CN201169557 Y CN 201169557Y
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Abstract
The utility model relates to an oily alkaline wastewater treatment system. The system consists of an oily alkaline wastewater neutralizing treatment system, an air-floatation pretreatment system, a cooling system, a biochemical treatment system, an advanced treatment system, a sludge sedimentation system, a sludge dewatering treatment system and a chemical dosing system. Qualified water after neutralization reaction is pretreated by adoption of the air-floatation method, is cooled and then enters into a biochemical reaction tank for biochemical treatment; oil in the water is degraded by microorganisms used for aeration in the biochemical reaction tank, and suspended substances in the water are treated and removed through a sedimentation tank; settled wastewater enters into a biochemical filter tank for advanced treatment; and after treatment, the indexes of the water are as follows: the COD is less than or equal to 80 milligrams per liter; the SS is less than or equal to 10 milligrams per liter; and the oil is less than or equal to 5 milligrams per liter. By utilization of biochemistry to remove the oil, the consumption of the system is reduced; by utilization of the biological filter tank to be the advanced treatment system, the consumption of mineral filler is reduced; and the oily alkaline wastewater treatment system has the advantages of low investment, low running cost, wide resource, sufficient reaction, good treatment effect, compact structure and convenient management.
Description
Technical field
The utility model relates to a kind of cleaning treatment system of industrial oil-containing alkaline waste water.
Background technology
In the prior art, oil-containing alkaline waste water is squeezed into neutralization tank from equalizing tank, squeezes into sour water in neutralization tank, and oil removal by air bubbling is used in the neutralization back, enters oil removal filter then and carries out degree of depth oil removing.
Treatment process of the prior art is that pure physico-chemical process is handled, and water outlet oleaginousness height can not reach the requirement of advanced treatment for a long time.Described energy consumption is big, and itself is not energy-conservation, and the mineral filtrate that is consumed is many, produces secondary pollution, does not meet environmental requirement, is not enough to realization system the long-term stability full-automatic and system of assurance and moves.
Summary of the invention
The purpose of this utility model provides a kind of treatment system of oil-containing alkaline waste water, and this system is made up of oil-containing alkaline waste water neutralizing treatment system, air supporting pretreatment system, cooling system, biochemical treatment system, advanced treatment system, sludge settling system, sludge dewatering treatment system, chemical medicine system; With industrial oil-containing alkaline waste water and industrial sour water is that raw material neutralizes, carry out pre-treatment with the air supporting method, enter biochemistry pool through the cooled water of cooling tower, aeration in biochemistry pool, with oil content in the microbiological deterioration water, through the biological filter advanced treatment, reduced the discharging of water pollutant again, made water outlet satisfy emission request.
For achieving the above object, the utility model is achieved through the following technical solutions:
The treatment system of oil-containing alkaline waste water is characterized in that: this system is made up of oil-containing alkaline waste water neutralizing treatment system, air supporting pretreatment system, cooling system, biochemical treatment system, advanced treatment system, sludge settling system, sludge dewatering treatment system, chemical medicine system;
Oil-containing alkaline waste water neutralizing treatment system comprises alkali equalizing tank, one-level neutralization tank, secondary neutralization tank, coagulation basin, and the alkali equalizing tank is connected with the one-level neutralization tank by pipeline, is provided with lift pump on this pipeline; In one-level neutralization tank and secondary neutralization tank, aeration and stirring system are set; Also has sour dosing system with the one-level neutralization tank links to each other with the secondary neutralization tank; The secondary neutralization tank connects coagulation basin;
Coagulation basin connects PAC medicine liquid tank and PAM medicine liquid tank, is provided with volume pump on connecting pipeline; PAC medicine liquid tank and PAM medicine liquid tank, HCl acid jar, NaOH medicine liquid tank constitute chemical medicine system;
Coagulation basin connects the air supporting pretreatment system, and facing-up oil is scraped the slag dolly on the air flotation pool equipment; The air supporting pretreatment system connects warm cooling tower in the cooling system; Connecting pipeline is provided with lift pump; In warm cooling tower connect the buffering pond by connecting pipeline; The buffering pond connects the biological reaction tank of biochemical treatment system by connecting pipeline; Biological reaction tank connects settling tank, and biological reaction tank connects the biological filter, and the biological filter connects the final outflow water pond; Settling tank also is connected mud tank with biological reaction tank, and mud tank connects plate-and-frame filter press, and connecting pipeline is provided with sludge reflux pump;
Biochemical treatment system comprises biological reaction tank, inlet and outlet pipe lines, Aeration fan, and there is biologic packing material inside; Advanced treatment system is the biological filter, comprises inner stuffing and connecting tube; The sludge settling system is made up of mud tank, sludge reflux pump; The sludge dewatering treatment system is made of sludge thickener, mud tank, plate-and-frame filter press.
The utility model beneficial effect compared with prior art is:
1) can handle oil-containing alkaline waste water and acid waste water simultaneously, can also handle sanitary sewage simultaneously in case of necessity, total system does not have the consumption of ore filler substantially, is enough to satisfy the acidic and alkaline waste water treatment system (station) of any scale.
2) introduce the air supporting pretreatment process, reduced the load of biochemical reaction tank, make water outlet more stable;
3) replaced conventional filter with the biological filter, guaranteed effluent quality, reduced the consumption of filler;
4) add acid and add alkali pump and control by PLC, dosage is drawn through calculated with mathematical model by PLC, guaranteed dosage accurately.
5) k-factor of introducing automatic and adjustable, artificial intelligence can be adjusted according to the fluctuation situation of PH automatically, under the situation of system fluctuation, draw more rational numerical automatically, system intelligent degree height; Also rule of thumb manual intervention.
6) have that investment is little, working cost is low, resource is wide, sufficient reacting, treatment effect are good, the advantage of compact construction, convenient management.
Description of drawings
Fig. 1 is a system construction drawing of the present utility model.
In the accompanying drawing, M-stirrer YW-liquidometer LW-rotation material level machine HP-turbidimeter P-tensimeter
Embodiment
Below in conjunction with accompanying drawing the utility model and technology are elaborated:
The treatment system of oil-containing alkaline waste water is made up of oil-containing alkaline waste water neutralizing treatment system, air supporting pretreatment system, cooling system, biochemical treatment system, advanced treatment system (biological filter), sludge settling system, sludge dewatering treatment system, chemical medicine system;
Oil-containing alkaline waste water neutralizing treatment system comprises alkali equalizing tank, one-level neutralization tank, secondary neutralization tank, coagulation basin, and the alkali equalizing tank is connected with the one-level neutralization tank by pipeline, is provided with lift pump on this pipeline; In one-level neutralization tank and secondary neutralization tank, aeration and stirring system are set; Also has sour dosing system with the one-level neutralization tank links to each other with the secondary neutralization tank; The secondary neutralization tank connects coagulation basin;
Coagulation basin connects PAC medicine liquid tank and PAM medicine liquid tank, is provided with volume pump on connecting pipeline; PAC medicine liquid tank and PAM medicine liquid tank, HCl acid jar, NaOH medicine liquid tank constitute chemical medicine system;
Coagulation basin connects the air supporting pretreatment system, and facing-up oil is scraped the slag dolly on the air flotation pool equipment; The air supporting pretreatment system connects warm cooling tower in the cooling system; Connecting pipeline is provided with lift pump; In warm cooling tower connect the buffering pond by connecting pipeline; The buffering pond connects biological reaction tank by connecting pipeline; Biological reaction tank connects settling tank, and biological reaction tank connects the biological filter, and the biological filter connects the final outflow water pond; Settling tank also is connected mud tank with biological reaction tank, and mud tank connects plate-and-frame filter press, and connecting pipeline is provided with sludge reflux pump.
Biochemical treatment system comprises biological reaction tank, inlet and outlet pipe lines, Aeration fan, and there is biologic packing material inside; Advanced treatment system is the biological filter, comprises inner stuffing and connecting tube; The sludge settling system is made up of mud tank, sludge reflux pump; The sludge dewatering treatment system is made of sludge thickener, mud tank, plate-and-frame filter press.
In native system, add alkali pump by variable frequency control, add acid by Stroke Control, through calculated with mathematical model, the PLC signal derives from the signal of each PH instrument to dosage by PLC.
Do following narration to using the technology of stating the system handles alkaline waste water below:
1) alkaline waste water is handled; The oil-containing alkaline waste water of unit discharging flows into the alkali equalizing tank, is provided with PH instrument and liquidometer YW in equalizing tank.
PH adjusts: the water outlet of alkali equalizing tank is squeezed into the one-level neutralization tank with lift pump, in the one-level neutralization tank, react by adding sour water and alkaline waste water, the dosage of acidic and alkaline waste water is subjected to the PH instrument variable frequency control of one-level neutralization tank water outlet, dosage is confirmed through calculated with mathematical model by PLC that respectively the PLC signal derives from the pH value in alkali equalizing tank and the acid jar.
Fine setting: the water outlet of one-level neutralization tank enters the secondary neutralization tank, having other two groups of less spent acid salkali waste pumps of flow to drop into the spent acid salkali waste once more respectively at the secondary neutralization tank finely tunes pH value, secondary gives the PH instrument control of alkali number by a neutralization tank water outlet for the acid amount, through stirring and aeration accelerated reaction process, again by in the one-level and the pH value of water outlet, corrected signal is provided, after calculated with mathematical model, corresponding oil-containing alkaline waste water squeezed into by control soda acid fine setting pump or alkaline waste water enters the secondary neutralization tank, thereby guarantees that the water outlet of secondary neutral is qualified.
When in the alkali equalizing tank during salkali waste liquid level warning (ultralow liquid level), the water outlet of sour equalizing tank (spent acid) is promoted in the one-level and aerator tank with pump, drops into milk of lime in the one-level neutralization tank, and the dosage of milk of lime is subjected to the PH instrument variable frequency control of one-level neutralization tank water outlet; The water outlet of one-level neutralization tank enters the secondary neutralization tank, once more pH value is finely tuned by the less adjusting pump of another group flow in the secondary neutralization tank, and fine setting gives amount by a neutralization tank water outlet PH instrument control (Stroke Control).
2) coagulating treatment; In the secondary and water outlet detect through PH, enter coagulation basin satisfying under the condition of PH=6-9; Qualified water adds flocculation agent and coagulant aids respectively in coagulation basin, mix, flocculate; The add-on of flocculation agent and coagulant aids is controlled by turbidimeter; Described flocculation agent is selected PAC for use; Described coagulant aids is selected PAM for use.
3) oil slick and part emulsification oil handling in the water: oil slick and part oil in water emulsion are handled by air flotation pool in the water, and air-float method has 4 kinds: pressure air-dissolving air-float, the gas of loosing are floating, jet air float or cavitation air flotation.
4) secondary PH regulates and cooling: regulate through PH once more through the waste water that air supporting is handled, make it to satisfy the requirement of bottom operation; Warm cooling tower in entering by lift pump then makes the waste water cooling after the processing, makes it temperature and meets biochemical requirement; Enter the buffering pond then.
5) processing of excess oil and COD in the water: through the content of pretreated waste water oil and COD than higher, in order to remove oil content and COD in the water, pretreated waste water enters biochemical treatment tank, and in the pond aeration, with oil content in the microbiological deterioration water, biochemical reaction tank inner control temperature is 20-35 ℃, pH value 6-9.Biochemical processing method has 4 kinds, contact oxidation method, activated sludge process, SBR method or CASS method.
6) sludge settling is handled; Waste water after pre-treatment, biochemical treatment enters settling tank, removes the middle suspended substance that anhydrates, and the form of settling tank has 3 kinds: reaction settling pond, radial-flow sedimentation tank or inclined-plate clarifying basin substitute.
7) advanced treatment: in order to guarantee effluent quality, the waste water of biochemical treatment, post precipitation enters the biological filter again, and the biological filter has another name called oxidation pond (tower), bio-contact oxidation filter tank.
8) sludge dewatering treatment; Deliver to mud tank from the mud of settling tank with sludge reflux pump and concentrate, be delivered to the plate-and-frame filter press dehydration with sludge reflux pump again, the mud cake after the dehydration leaves sludge bucket in, regularly transports outward with automobile; Cleaner liquid and pressure filter wash-down water then by after collecting, drain into wastewater equalization pond with pump.
Claims (1)
1, the treatment system of oil-containing alkaline waste water is characterized in that: this system is made up of oil-containing alkaline waste water neutralizing treatment system, air supporting pretreatment system, cooling system, biochemical treatment system, advanced treatment system, sludge settling system, sludge dewatering treatment system, chemical medicine system;
Oil-containing alkaline waste water neutralizing treatment system comprises alkali equalizing tank, one-level neutralization tank, secondary neutralization tank, coagulation basin, and the alkali equalizing tank is connected with the one-level neutralization tank by pipeline, is provided with lift pump on this pipeline; In one-level neutralization tank and secondary neutralization tank, aeration and stirring system are set; Also has sour dosing system with the one-level neutralization tank links to each other with the secondary neutralization tank; The secondary neutralization tank connects coagulation basin;
Coagulation basin connects PAC medicine liquid tank and PAM medicine liquid tank, is provided with volume pump on connecting pipeline; PAC medicine liquid tank and PAM medicine liquid tank, HCl acid jar, NaOH medicine liquid tank constitute chemical medicine system;
Coagulation basin connects the air supporting pretreatment system, and facing-up oil is scraped the slag dolly on the air flotation pool equipment; The air supporting pretreatment system connects warm cooling tower in the cooling system; Connecting pipeline is provided with lift pump; In warm cooling tower connect the buffering pond by connecting pipeline; The buffering pond connects the biological reaction tank of biochemical treatment system by connecting pipeline; Biological reaction tank connects settling tank, and biological reaction tank connects the biological filter, and the biological filter connects the final outflow water pond; Settling tank also is connected mud tank with biological reaction tank, and mud tank connects plate-and-frame filter press, and connecting pipeline is provided with sludge reflux pump;
Biochemical treatment system comprises biological reaction tank, inlet and outlet pipe lines, Aeration fan, and there is biologic packing material inside; Advanced treatment system is the biological filter, comprises inner stuffing and connecting tube; The sludge settling system is made up of mud tank, sludge reflux pump; The sludge dewatering treatment system is made of sludge thickener, mud tank, plate-and-frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200158167U CN201169557Y (en) | 2007-11-12 | 2007-11-12 | Processing system of oil-containing alkaline waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200158167U CN201169557Y (en) | 2007-11-12 | 2007-11-12 | Processing system of oil-containing alkaline waste water |
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| CN201169557Y true CN201169557Y (en) | 2008-12-24 |
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| CNU2007200158167U Expired - Fee Related CN201169557Y (en) | 2007-11-12 | 2007-11-12 | Processing system of oil-containing alkaline waste water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805102A (en) * | 2010-05-27 | 2010-08-18 | 江门裕华皮革有限公司 | Wastewater treatment method |
| CN102358646A (en) * | 2011-08-11 | 2012-02-22 | 江苏新宇天成环保工程有限公司 | High-efficiency deposition device for mines |
| CN102583829A (en) * | 2012-03-03 | 2012-07-18 | 王志勇 | Multifunctional flocculation and oscillation experiment device |
| CN103922527A (en) * | 2014-03-25 | 2014-07-16 | 河海大学 | Integrated advanced wastewater treatment device and process |
| CN104478173A (en) * | 2014-12-22 | 2015-04-01 | 新疆环境工程技术有限责任公司 | Wastewater treatment and recycling integrated treatment process for coal chemical enterprise |
-
2007
- 2007-11-12 CN CNU2007200158167U patent/CN201169557Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805102A (en) * | 2010-05-27 | 2010-08-18 | 江门裕华皮革有限公司 | Wastewater treatment method |
| CN102358646A (en) * | 2011-08-11 | 2012-02-22 | 江苏新宇天成环保工程有限公司 | High-efficiency deposition device for mines |
| CN102583829A (en) * | 2012-03-03 | 2012-07-18 | 王志勇 | Multifunctional flocculation and oscillation experiment device |
| CN103922527A (en) * | 2014-03-25 | 2014-07-16 | 河海大学 | Integrated advanced wastewater treatment device and process |
| CN103922527B (en) * | 2014-03-25 | 2015-11-25 | 河海大学 | Integrated sewage water advanced treatment apparatus and technique thereof |
| CN104478173A (en) * | 2014-12-22 | 2015-04-01 | 新疆环境工程技术有限责任公司 | Wastewater treatment and recycling integrated treatment process for coal chemical enterprise |
| CN104478173B (en) * | 2014-12-22 | 2016-05-25 | 新疆环境工程技术有限责任公司 | Coal chemical industry enterprises wastewater treatment and resource integrated treatment process |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20111112 |