CN205061679U - Sewage treatment system of gasification dephosphorization - Google Patents
Sewage treatment system of gasification dephosphorization Download PDFInfo
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- CN205061679U CN205061679U CN201520678935.5U CN201520678935U CN205061679U CN 205061679 U CN205061679 U CN 205061679U CN 201520678935 U CN201520678935 U CN 201520678935U CN 205061679 U CN205061679 U CN 205061679U
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- film separating
- sewage treatment
- treatment systems
- separating system
- reaction vessel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a sewage treatment system of gasification dephosphorization, including reaction vessel, membrane separation system, water production system and aeration systems, the sewage treatment method that this system used includes following technology step: oxido reduction potential is higher than - 200mV in making reaction vessel through aeration control, and the dissolved oxygen concentration of wherein membrane separation system realm is for being less than 1.5mgL, and other regional dissolved oxygen concentrations are less than 0.8mgL, membrane separation system realm dissolved oxygen concentration is greater than other regions. The utility model discloses an avoid the production of hydrogen sulfide through pneumatolytic mode when sewage treatment system of gasification dephosphorization will synthesize the cell under the microbial action phosphorus is got rid of, eliminated the peculiar smell.
Description
Technical field
The utility model relates to sewage treatment area, particularly relates to a kind of sewage water treatment method and system of dephosphorization of gasifying.
Background technology
Traditional biological dephosphorization under anaerobic absorbs VOCs emission phosphorus by polyP bacteria; Excessive in outside picked-up phosphorus under aerobic condition, and be housed in thalline inside with polymerized form, formed outside high phosphorus sludge discharge system, reach the effect of dephosphorization from sewage.The difficult raising of traditional biological phosphorus removing method dephosphorizing rate, and excess sludge is usually taked to comprise the measures such as sanitary landfill, mummification, burning and processed, ubiquity secondary pollution and carbon emission such as to increase at the problem.
Publication number is the membrane biological reactor process that the utility model patent of CN101885538B discloses a kind of removing phosphorus without mud discharge, this technique forms aerobic-alternatively distributed circulation flow location form of oxygen-anaerobism of holding concurrently by controlling aeration rate in membrane bioreactor, realize aerobic suction phosphorus-anaerobic phosphorus release, under the effect of phosphuret-(t)ed hydrogen reducing bacteria, be then converted into phosphuret-(t)ed hydrogen release.But meanwhile can turn out sulphate reducing bacteria under anaerobic environment, be hydrogen sulfide by the sulfate reduction in sewage, cause strong peculiar smell, treatment effect is undesirable.
Utility model content
The technical problem that the utility model solves is to provide a kind of sewage water treatment method that can not produce the gasification dephosphorization of hydrogen sulfide.
The utility model solves the technical scheme that its technical problem adopts:
A kind of sewage water treatment method of dephosphorization of gasifying, the method is based on membrane bioreactor, comprise following processing step: make reaction vessel internal oxidition reduction potential higher than-200mV by aeration control, wherein the dissolved oxygen concentration in film separating system region is less than 2.0mg/L, the dissolved oxygen concentration in other regions is for being less than 1.0mg/L, and described film separating system region soluble oxygen concn is greater than other regions.
By adding carbon source or phosphorus source, the concentration ratio of the carbon in described reaction vessel in sewage and phosphorus is made to be greater than 25.The utility model also provides a kind of Sewage treatment systems of dephosphorization of gasifying, comprise reaction vessel, film separating system, water production system and aerating system, described film separating system is placed in described reaction vessel, described water production system is communicated with described film separating system for extracting film separating system filtrate out, and described aerating system is used for described reaction vessel and described film separating system aeration; Described aerating system is configured to make reaction vessel internal oxidition reduction potential higher than-200mV, wherein the dissolved oxygen concentration in film separating system region is for being less than 0 ~ 1.5mg/L, the dissolved oxygen concentration in other regions is 0 ~ 0.8mg/L, and described film separating system region soluble oxygen concn is greater than other regions.
Described film separating system is microfiltration membrane or ultra-filtration membrane.
Described water production system selects suction type water production system or gravity water production system.
The Sewage treatment systems of described gasification dephosphorization also comprises the flushing system of corresponding described film separating system setting, and described flushing system selects aeration flushing system or sluicing system.
Described flushing system selects aeration flushing system, by aeration rate integrated distribution is realized washing away described film separating system in film separating system region.
The Sewage treatment systems of described gasification dephosphorization also comprises the vibrational system of corresponding described film separating system setting.
The Sewage treatment systems of described gasification dephosphorization also comprises cleaning system, and described cleaning system is back-purge system or ultrasonic cleaning system.
Compared with prior art, the Sewage treatment systems of gasification dephosphorization of the present utility model avoids the generation of hydrogen sulfide while being removed by the mode of gasification by the phosphorus of synthetic cell under microbial process, eliminate peculiar smell; The sewage water treatment method of gasification dephosphorization of the present utility model and system can combinationally use with other biochemical processing process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Sewage treatment systems of gasification dephosphorization of the present utility model;
Fig. 2 is the structural representation of the flushing system of the Sewage treatment systems of the utility model gasification dephosphorization.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
The Sewage treatment systems of gasification dephosphorization of the present utility model as shown in Figure 1, comprises film separating system 1, retort 2, gas blower 3, aerated conduit 4, produces water pump 5, clean water basin 6, backwash pipeline 7 and water production pipeline 8.Described film separating system 1 is ultra-filtration membrane, described film separating system 1 is placed in described retort 2, described product water pump 5 is communicated with for filtrate is evacuated to clean water basin 6 by water production pipeline 8 with described film separating system 1, described gas blower 3 to described reaction vessel and described film separating system aeration by aerated conduit 4, is carried out aeration to described film separating system 1 while making to produce dissolved oxygen concentration gradient in described retort 2 and washes away; Described backwash pipeline 7 is connected with clean water basin 6 and film separating system 1, and the clear water of clean water basin 6 can be used as required to clean film separating system 1.
Understandable, the membrane module that described film separating system 1 can select other prior aries such as microfiltration membrane usual; Described retort 2 can also adopt the reaction vessel of the prior aries such as reaction tank; The aerating system that described gas blower 3 and aerated conduit 4 form can also use other aerating systems of prior art; Sluicing can also be adopted to washing away of film separating system 1; The water production system that described product water pump 5 and water production pipeline 8 form can also select other water production systems of the prior aries such as gravity water production system; Water production pipeline 8 and backwash pipeline 7 both can be completely independently two pipelines, also can there is the pipeline of partial common; The cleaning system that backwash pipeline 7 and clean water basin 6 form can also adopt other cleaning systems such as ultrasonic cleaning system to substitute.
In addition, the Sewage treatment systems of gasification dephosphorization of the present utility model can also arrange vibrational system at described film separating system, to avoid film separating system by sludge blockage further.
Described aerating system is configured to make reaction vessel internal oxidition reduction potential higher than-200mV, wherein the dissolved oxygen concentration in film separating system region is 0 ~ 1.5mg/Lmg/L, the dissolved oxygen concentration in other regions is 0 ~ 0.8mg/Lmg/L, and described film separating system region soluble oxygen concn is greater than other regions.Avoid the generation of hydrogen sulfide while being removed by the mode of gasification by the phosphorus of synthetic cell under microbial process, eliminate peculiar smell.
Certain small towns sanitary sewage, day output is 300 tons/day, and water quality is as follows:
Sewage treatment systems of the present utility model is used to process above-mentioned sewage, aeration is carried out by gas blower 3 pairs of sewage, control dissolved oxygen and redox potential, maintenance film separating system region soluble oxygen concn is that the region soluble oxygen concn beyond 0.8-1.5mg/L, film separating system is 0.3-0.9mg/L, redox potential is about-150mV.
Under above-mentioned control condition, tamed by the cultivation of for some time, set up microflora, microorganism is retained by film separating system, and in reaction zone enrichment.Antimicrobial absorbent phosphor in sewage becomes microorganism cells integral part, and after microorganism cells death, the mode of intracellular phosphorus by gasification removed under microbial process, the water outlet after process discharges reactive system by water pump suction function.
Effluent quality is as follows:
Claims (7)
1. the Sewage treatment systems of a dephosphorization of gasifying, it is characterized in that, comprise reaction vessel, film separating system, water production system and aerating system, described film separating system is placed in described reaction vessel, described water production system is communicated with the filtrate for extracting out in film separating system with described film separating system, and described aerating system is used for described reaction vessel and described film separating system aeration; Described aerating system is configured to make reaction vessel internal oxidition reduction potential higher than-200mV, wherein the dissolved oxygen concentration in film separating system region is 0 ~ 1.5mg/L, dissolved oxygen concentration 0 ~ the 0.8mg/L in other regions, described film separating system region soluble oxygen concn is greater than other regions.
2. the Sewage treatment systems of gasification dephosphorization according to claim 1, is characterized in that: described film separating system is microfiltration membrane or ultra-filtration membrane.
3. the Sewage treatment systems of gasification dephosphorization according to claim 1, is characterized in that: described water production system selects suction type water production system or gravity water production system.
4. the Sewage treatment systems of gasification dephosphorization according to claim 1, is characterized in that: also comprise the flushing system that corresponding described film separating system is arranged, described flushing system selects aeration flushing system or sluicing system.
5. the Sewage treatment systems of gasification dephosphorization according to claim 4, is characterized in that: described flushing system selects aeration flushing system, by aeration rate integrated distribution is realized washing away described film separating system in film separating system region.
6. the Sewage treatment systems of gasification dephosphorization according to claim 1, is characterized in that: also comprise the vibrational system that corresponding described film separating system is arranged.
7. the Sewage treatment systems of gasification dephosphorization according to claim 1, is characterized in that: also comprise cleaning system, and described cleaning system is back-purge system or ultrasonic cleaning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520678935.5U CN205061679U (en) | 2015-09-01 | 2015-09-01 | Sewage treatment system of gasification dephosphorization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520678935.5U CN205061679U (en) | 2015-09-01 | 2015-09-01 | Sewage treatment system of gasification dephosphorization |
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| Publication Number | Publication Date |
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| CN205061679U true CN205061679U (en) | 2016-03-02 |
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| CN201520678935.5U Active CN205061679U (en) | 2015-09-01 | 2015-09-01 | Sewage treatment system of gasification dephosphorization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923749A (en) * | 2015-09-01 | 2016-09-07 | 江西金达莱环保股份有限公司 | Gasification dephosphorization sewage treatment method and system |
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2015
- 2015-09-01 CN CN201520678935.5U patent/CN205061679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923749A (en) * | 2015-09-01 | 2016-09-07 | 江西金达莱环保股份有限公司 | Gasification dephosphorization sewage treatment method and system |
| WO2017035889A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system for removing phosphorus by gasification |
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