CN203269694U - Pre-treatment system for high-concentration degradation-resistant organic waste water - Google Patents
Pre-treatment system for high-concentration degradation-resistant organic waste water Download PDFInfo
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- CN203269694U CN203269694U CN 201320289499 CN201320289499U CN203269694U CN 203269694 U CN203269694 U CN 203269694U CN 201320289499 CN201320289499 CN 201320289499 CN 201320289499 U CN201320289499 U CN 201320289499U CN 203269694 U CN203269694 U CN 203269694U
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- waste water
- activated carbon
- carbon adsorption
- organic waste
- wet oxidation
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Abstract
The utility model discloses a pre-treatment system for high-concentration degradation-resistant organic waste water. The pre-treatment system mainly comprises a macromolecule trapper, a first level activated carbon adsorption pool, a second level activated carbon adsorption pool and a catalytic wet oxidation reactor. The high-concentration organic waste water is sequentially pretreated by the macromolecule trapper, the first level activated carbon adsorption pool and the second level activated carbon adsorption pool; after being neutralized, a backflushing concentrated solution of the macromolecule trapper is treated in the catalytic wet oxidation reactor, and the activated carbon in the adsorption pool is regenerated through the catalytic wet oxidation reactor. After the organic waste water is treated by the system, more than 90% of COD can be degraded, the biodegradability of the waste water is improved remarkably, and diluting water for biochemical treatment and biochemical load are lowered. Compared with the traditional catalytic wet oxidation manner, the pre-treatment system consumes less energy, greatly lowers the treatment cost of the waste water, can be used for treating a large amount of high-concentration organic waste water, and realizes industrial popularization and application of the treatment technology of high-concentration degradation-resistant organic waste water.
Description
Technical field
The utility model relates to a kind of sewage treatment area, is specifically related to a kind of pretreatment system of high concentration hard-degraded organic waste water.
Background technology
The processing of high concentration hard-degraded organic waste water is the difficult problem that sewage disposal circle is both at home and abroad at present generally acknowledged.For this class waste water, at present both at home and abroad research is more the professional waste water such as coking chemical waste water, pharmacy waste water (comprising traditional Chinese medicine wastewater), petrochemical industry/oils waste water, weaving/dyeing waste water, wastewater from chemical industry, paint waste water.So-called " high density " refers to that the organic concentration (in COD) of this class waste water is higher, and be general all more than 2000mg/L, have even up to every liter several ten thousand to tens0000 milligrams; So-called " difficult degradation " refers to the lower (BOD of biodegradability of this class waste water
5/ COD value is general all even lower below 0.3), be difficult to biological degradation.So, in the industry generally with COD concentration greater than 2000 mg/L, BOD
5/ COD value is called high concentration hard-degraded organic waste water lower than 0.3 organic waste water unification.
At present, comparatively general treatment process is essentially biological process, but simple biological treatment workshop section is difficult to this class wastewater treatment generally all to need replenishing as water outlet assurance up to standard comprehensively of pretreated basis and advanced treatment to desirable degree.For many years, the investigator has carried out a large amount of work in the pre-treatment of high concentration hard-degraded organic waste water, as patent of invention ZL201010296447.X, patent is called " a kind for the treatment of process of organic wastewater with high concentration ", carry out pre-treatment with the iron-carbon micro-electrolysis oxidation style, improve the biodegradability of waste water; Patent of invention ZL200710150792.0, patent is called " technique of processing organic wastewater with high concentration by wet catalytic oxidation ", with patent of invention ZL201110257500.X, patent is called " a kind of method of catalytic wet oxidation preprocessing coking wastewater ", all adopt catalytic wet air oxidation to carry out pre-treatment to waste water, the COD degradation effect is remarkable, has improved the influent quality of follow-up biochemistry.But above method all exists running cost high, is not suitable for the larger organic hc effluent for the treatment of capacity, is difficult to realize industrialized popularization and application.
Therefore, can make effluent quality comprehensively up to standard, again can the unit of making the water yield processing cost technology and the technique that reduce still need further research.
Summary of the invention
The purpose of this utility model is for the deficiency of the characteristics of high concentration hard-degraded organic waste water and existing treatment technology, and the pretreatment system that a kind of technique is simple, running cost is low, treatment effect is good is provided.
For achieving the above object, the utility model by the following technical solutions: a kind of high concentration hard-degraded organic waste water pretreatment system mainly is comprised of trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank and Catalytic Wet Oxidation reactor.Organic wastewater with high concentration carries out pre-treatment by trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank successively, in the backwash concentrated solution of trapping polymer and after enter the Catalytic Wet Oxidation reactor and process, the gac in adsorption tank is regenerated by the Catalytic Wet Oxidation reactor.
Cancellated insoluble macromolecular compound is housed in the trapping polymer described in such scheme, and trapping polymer is provided with back wash tank and neutralization tank.
Be equipped with topping-up pump before one-level activated carbon adsorption tank described in such scheme, secondary activated carbon adsorption tank, the residence time of sewage in activated carbon adsorption tank is 15～30min, and gac order number is greater than 250 orders.
Regulating the pH value in neutralization tank described in such scheme is 6.0～8.0.
Catalytic Wet Oxidation reactor interior reaction temperature described in such scheme is 200～350 ℃, and reaction pressure is 20～35MPa, wastewater treatment residence time HRT≤120S.
The attainable beneficial effect of native system: excellent wastewater treatment effect, COD can degrade more than 90%, and the biodegradability of waste water is significantly improved, and has reduced follow-up biochemical treatment diluting water and biochemical load; Present technique is compared with traditional Wet Catalytic Oxidation Method, only have a small amount of waste water and gac to process through the Catalytic Wet Oxidation reactor, energy consumption is low, greatly reduce the processing cost of waste water, can for the treatment of the processing of the larger organic hc effluent of amount, realize the industrialization popularization and application that high concentration hard-degraded organic waste water is processed.
Description of drawings
Accompanying drawing 1 is the schema of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, a kind of high concentration hard-degraded organic waste water pretreatment system mainly is comprised of trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank and Catalytic Wet Oxidation reactor.Organic wastewater with high concentration carries out pre-treatment by trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank successively.Wastewater biodegradability after pretreatment is significantly improved, can enter biochemistry pool and process, then after advanced treatment qualified discharge.Cancellated insoluble macromolecular compound is housed in trapping polymer, trapping polymer is provided with back wash tank and neutralization tank, the backwash concentrated solution of trapping polymer enters neutralization tank, regulating the pH value in neutralization tank is 6.0～8.0, in concentrated solution and after enter the Catalytic Wet Oxidation reactor and process, the water after processing directly enters biochemistry pool.Gac order number in activated carbon adsorption tank is greater than 250 orders, and the residence time of sewage in activated carbon adsorption tank is 15～30min, and the gac in adsorption tank is regenerated by the Catalytic Wet Oxidation reactor.Catalytic Wet Oxidation reactor interior reaction temperature is 200～350 ℃, and reaction pressure is 20～35MPa, wastewater treatment residence time HRT≤120S.
Claims (4)
1. the pretreatment system of a high concentration hard-degraded organic waste water, it is characterized in that: it mainly is comprised of trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank and Catalytic Wet Oxidation reactor, and organic wastewater with high concentration carries out pre-treatment by trapping polymer, one-level activated carbon adsorption tank, secondary activated carbon adsorption tank successively.
2. the pretreatment system of high concentration hard-degraded organic waste water according to claim 1, it is characterized in that: cancellated insoluble macromolecular compound is housed in trapping polymer, trapping polymer is furnished with back wash tank and neutralization tank, the backwash concentrated solution of trapping polymer in neutralization tank and after enter the Catalytic Wet Oxidation reactor and process.
3. the pretreatment system of high concentration hard-degraded organic waste water according to claim 1, it is characterized in that: be equipped with topping-up pump before one-level activated carbon adsorption tank and secondary activated carbon adsorption tank, the residence time of sewage in activated carbon adsorption tank is 15～30min, gac order number is greater than 250 orders, and the gac in adsorption tank is regenerated by the Catalytic Wet Oxidation reactor.
4. the pretreatment system of high concentration hard-degraded organic waste water according to claim 1, it is characterized in that: Catalytic Wet Oxidation reactor interior reaction temperature is 200～350 ℃, reaction pressure is 20～35MPa, wastewater treatment residence time HRT≤120S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289499 CN203269694U (en) | 2013-05-24 | 2013-05-24 | Pre-treatment system for high-concentration degradation-resistant organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289499 CN203269694U (en) | 2013-05-24 | 2013-05-24 | Pre-treatment system for high-concentration degradation-resistant organic waste water |
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| CN203269694U true CN203269694U (en) | 2013-11-06 |
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| CN 201320289499 Expired - Lifetime CN203269694U (en) | 2013-05-24 | 2013-05-24 | Pre-treatment system for high-concentration degradation-resistant organic waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569828A (en) * | 2017-09-06 | 2018-09-25 | 杭州小橙工业设计有限公司 | Waste water purification system |
| CN109336332A (en) * | 2018-11-13 | 2019-02-15 | 中石化炼化工程（集团）股份有限公司 | A kind of processing method and organic sewage treatment device suitable for high COD organic sewage |
-
2013
- 2013-05-24 CN CN 201320289499 patent/CN203269694U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569828A (en) * | 2017-09-06 | 2018-09-25 | 杭州小橙工业设计有限公司 | Waste water purification system |
| CN109336332A (en) * | 2018-11-13 | 2019-02-15 | 中石化炼化工程（集团）股份有限公司 | A kind of processing method and organic sewage treatment device suitable for high COD organic sewage |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG DINGXIN ECOLOGICAL MICRO ENVIRONMENT TECH Free format text: FORMER NAME: SHANDONG NEW ENERGY TECHNOLOGIES DING LETTER PETROCHEMICAL CO., LTD. OPERATIONS |
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| CP03 | Change of name, title or address |
Address after: 264003 No. 106 AUCMA street, Laishan District, Shandong, Yantai Patentee after: SHANDONG DINGXIN ECOLOGICAL MICRO-ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 264003, No. 1, Jin Du Road, Sheng Quan Industrial Park, Laishan District, Shandong, Yantai Patentee before: Shandong Dingxin Petrochemical New Energy Technology Operators Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
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| CX01 | Expiry of patent term |