CN202671353U - Sewage treatment system for esterification starch acetate - Google Patents
Sewage treatment system for esterification starch acetate Download PDFInfo
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- CN202671353U CN202671353U CN 201220302993 CN201220302993U CN202671353U CN 202671353 U CN202671353 U CN 202671353U CN 201220302993 CN201220302993 CN 201220302993 CN 201220302993 U CN201220302993 U CN 201220302993U CN 202671353 U CN202671353 U CN 202671353U
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- sewage treatment
- activated sludge
- potato starch
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Abstract
The utility model discloses a sewage treatment system for esterification starch acetate, and is used for treating sewage of the esterification starch acetate. The sewage treatment system comprises a sedimentation tank, an aeration tank, a pH regulation tank, an anaerobic sludge bed, an active sludge reactor, a sludge collection tank and a methane collection tank, wherein the input end of the sedimentation tank is connected to sewage of the esterification starch acetate, and the output end of the sedimentation tank is connected to the input end of the anaerobic sludge bed sequentially by the aeration tank and the pH regulation tank; the output end of the anaerobic sludge bed is connected to the input end of the active sludge reactor, the input end of the sludge collection tank and the input end of the methane collection tank respectively; and the input end of the sludge collection tank is connected to the output end of the active sludge reactor. The sewage treatment system is low in investment cost and running cost, high in automated degree and good in sewage treatment effect.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems, particularly relates to a kind of Sewage treatment systems of Acetylated potato starch.
Background technology
At present, in the production process of Acetylated potato starch, starch reaction finishes rear for to guarantee that its edible safety can use a large amount of tap water to wash, can there be more inorganic salt in the sewage after the washing, directly discharging can be to environment, people and animals can't drink, can not be used for plant irrigation, therefore need before the discharging to process through the Sewage treatment systems of specialty, reducing COD, ammonia-nitrogen content, the phosphorus content of sewage, the municipal sewage pipe network of being allowed for access after up to standard is again concentrated and is processed.The at present domestic sewage water treatment method of producing for common starch is reported to some extent, but is not almost had the relevant discussion for the sewage water treatment method of sex change Acetylated potato starch.
The utility model content
The technical problems to be solved in the utility model provides a kind of Sewage treatment systems of Acetylated potato starch, cost of investment and working cost are lower, level of automation is higher, and treatment effect is better, and the indices of the Acetylated potato starch sewage that this system of process processes all can reach emission standard.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of Sewage treatment systems of Acetylated potato starch, for the treatment of the sewage of Acetylated potato starch,
Described Sewage treatment systems comprises settling tank, aeration tank, pH regulator pond, anaerobic mud bed, activated sludge reactor, mud collecting tank, collecting methane pond,
The input terminus of described settling tank is connected in the sewage of Acetylated potato starch, and the output terminal of described settling tank is connected in anaerobic mud bed input terminus by aeration tank, pH regulator pond successively,
Described anaerobic mud bed output terminal is connected to the input terminus of activated sludge reactor, the input terminus of mud collecting tank, the input terminus in collecting methane pond, and the input terminus of described mud collecting tank is connected in the output terminal of activated sludge reactor.
As improvement, the utility model also comprises the advanced treatment pond, and described advanced treatment is provided with polymerize aluminum chloride in the pond, and described advanced treatment pond is connected in the output terminal of activated sludge reactor.
As further improvement, the utility model also comprises water extracter, and described water extracter is connected in the output terminal of mud collecting tank.
Preferably, activated sludge reactor described in the utility model has two, and described two activated sludge reactors are arranged in parallel.
Preferably, described in the utility model anaerobic mud bed be up-flow anaerobic sludge blanket.
Preferably, activated sludge reactor described in the utility model is sequencing batch activated sludge reactor.
Therefore compared with prior art, the utility model has following beneficial effect:
Settling tank can staticly settle starch residual in the wash water by action of gravity; The aeration tank can be by aeration except the volatile organic matter in the decontaminated water; The adjusting of sewage pH is mainly carried out in the pH regulator pond, guarantees to enter anaerobic mud bed water quality for neutral; Its inner anaerobism of anaerobic mud bed use and oxygen consumption bacterial classification can be used as the energy again to utilize so that the organic pollutant in the waste water, changes into the chief component composition of the biogas such as methane and carbon dioxide under anaerobic through microbiological deterioration; Activated sludge reactor relies on its inner oxygen consumption microorganism to come pollutent in the oxygenolysis water, and the sewage disposal of time-program(me) can be provided, and effluent quality is good, and running cost is low; But the penetration depth treating pond carried out deep purifying after the sewage of Acetylated potato starch was processed by settling tank, aeration tank, pH regulator pond, anaerobic mud bed, activated sludge reactor successively, COD content in the water, ammonia-nitrogen content, phosphorus content are lowered to and meet emission standard, pH reaches emission request, and treated water just can be discharged into the city and concentrate the sewage disposal pipe network like this.Cost of investment and the working cost of whole system are lower, and level of automation is higher, and treatment effect is better.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Be illustrated in figure 1 as the embodiment of the Sewage treatment systems of a kind of Acetylated potato starch described in the utility model, sewage for the treatment of Acetylated potato starch, present embodiment comprises settling tank 1, aeration tank 2, pH regulator pond 3, anaerobic mud bed 4, activated sludge reactor 5, mud collecting tank 6, collecting methane pond 7, the input terminus of settling tank 1 is connected in the sewage of Acetylated potato starch, the output terminal of settling tank 1 is successively by aeration tank 2, pH regulator pond 3 is connected in anaerobic mud bed 4 input terminus, anaerobic mud bed 4 output terminal is connected to the input terminus of activated sludge reactor 5, the input terminus of mud collecting tank 6, the input terminus in collecting methane pond 7, the input terminus of mud collecting tank 6 is connected in the output terminal of activated sludge reactor 5.
As improvement, present embodiment also comprises advanced treatment pond 8, is provided with polymerize aluminum chloride in the advanced treatment pond 8, and advanced treatment pond 8 is connected in the output terminal of activated sludge reactor 5.
As further improvement, present embodiment also comprises water extracter 9, and water extracter 9 is connected in the output terminal of mud collecting tank 6.
Preferably, in the present embodiment, activated sludge reactor 5 has two, and two activated sludge reactors 5 are arranged in parallel, and can be used alternatingly during actually operating, increase the service life.
Preferably, in the present embodiment, anaerobic mud bed 4 is up-flow anaerobic sludge blanket.
Preferably, in the present embodiment, activated sludge reactor 5 is sequencing batch activated sludge reactor.
The suspended substances such as Acetylated potato starch that contain 3-5% in the sewage of Acetylated potato starch need be through the gravity natural sedimentation in settling tank 1, and settling tank 1 can be removed most suspended substances residual in the sewage, reduces the load of subsequent disposal; Aeration tank 2 is conducive to follow-up biochemical treatment by the volatile organic matter in the aeration removal sewage; Because the inhomogeneous discharging of the water quality of the Acetylated potato starch sewage of different degree of substitution/different material/different stage and the water yield etc., so sewage need to be in the pH regulator pond 3 is stopped certain hours, can guarantee that like this sewage mixes in pH regulator pond 3, pH and temperature with sewage is adjusted to the required scope of follow-up biochemical treatment simultaneously, general pH is adjusted to 6.8-7.2, and temperature is adjusted into the 35-38 degree; After the pH of sewage and temperature reach requirement, sewage enters up-flow anaerobic sludge blanket, this up-flow anaerobic sludge blanket is the key equipment of native system, wherein be provided with the anaerobic sludge of a large amount of high-efficient granules, can greatly improve the clearance of COD, than the high 2-3 of clearance of common anaerobic digester doubly; Through anaerobic mud bed 4 sewage of processing, its COD decrease, enter again sequencing batch activated sludge reactor, pollutent in the oxidable water of decomposition of the aerobic microbiological that is provided with in this reactor, treating processes comprise that whole treating processes is carried out into steps such as water, reaction, precipitation, drainings in a reactor, sludge activity in this reactor is high, degradation of contaminant speed is fast, can effectively remove the ammonia nitrogen in the sewage, reduces simultaneously phosphorus content; Substantially reach standard-required through the sewage after the above-mentioned processing, final penetration depth treating pond 8, the polymerize aluminum chloride that arranges in this treating pond can be further processed being disposed to city integrated water treatment pipe network behind the deep purification of waste water; Up-flow anaerobic sludge blanket can make sludge quantity increase in the process of disposing of sewage, and the unnecessary mud of generation enters mud collecting tank 6, can be used as seed sludge, and seed sludge can be by becoming filter cake after water extracter 9 dehydrations, and this filter cake can be sent processing outside; The excessive mud that produces in the sequencing batch activated sludge reactor can become filter cake through the dosing flocculation again in that mud collecting tank 6 is interior after the water extracter mechanism filter-pressing, can send outside as fertilizer; Organic pollutant in the sewage changes into the gases such as methane and carbon dioxide through microbiological deterioration in up-flow anaerobic sludge blanket, this gas is biogas, and contains the methane more than 50%, can be used as the energy and again utilize after collect in collecting methane pond 7.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. the Sewage treatment systems of an Acetylated potato starch, the sewage for the treatment of Acetylated potato starch is characterized in that:
Described Sewage treatment systems comprises settling tank, aeration tank, pH regulator pond, anaerobic mud bed, activated sludge reactor, mud collecting tank, collecting methane pond,
The input terminus of described settling tank is connected in the sewage of Acetylated potato starch, and the output terminal of described settling tank is connected in anaerobic mud bed input terminus by aeration tank, pH regulator pond successively,
Described anaerobic mud bed output terminal is connected to the input terminus of activated sludge reactor, the input terminus of mud collecting tank, the input terminus in collecting methane pond, and the input terminus of described mud collecting tank is connected in the output terminal of activated sludge reactor.
2. the Sewage treatment systems of Acetylated potato starch according to claim 1, it is characterized in that: also comprise the advanced treatment pond, described advanced treatment is provided with polymerize aluminum chloride in the pond, and described advanced treatment pond is connected in the output terminal of activated sludge reactor.
3. the Sewage treatment systems of Acetylated potato starch according to claim 1 and 2, it is characterized in that: also comprise water extracter, described water extracter is connected in the output terminal of mud collecting tank.
4. the Sewage treatment systems of Acetylated potato starch according to claim 1 and 2, it is characterized in that: described activated sludge reactor has two, and described two activated sludge reactors are arranged in parallel.
5. the Sewage treatment systems of Acetylated potato starch according to claim 1 and 2 is characterized in that: the described anaerobic mud bed up-flow anaerobic sludge blanket that is.
6. the Sewage treatment systems of Acetylated potato starch according to claim 1 and 2, it is characterized in that: described activated sludge reactor is sequencing batch activated sludge reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302993 CN202671353U (en) | 2012-06-27 | 2012-06-27 | Sewage treatment system for esterification starch acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302993 CN202671353U (en) | 2012-06-27 | 2012-06-27 | Sewage treatment system for esterification starch acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202671353U true CN202671353U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302993 Expired - Fee Related CN202671353U (en) | 2012-06-27 | 2012-06-27 | Sewage treatment system for esterification starch acetate |
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| CN (1) | CN202671353U (en) |
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2012
- 2012-06-27 CN CN 201220302993 patent/CN202671353U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20200627 |