CN1103324C - Process for treating sewage - Google Patents
Process for treating sewage Download PDFInfo
- Publication number
- CN1103324C CN1103324C CN99113073A CN99113073A CN1103324C CN 1103324 C CN1103324 C CN 1103324C CN 99113073 A CN99113073 A CN 99113073A CN 99113073 A CN99113073 A CN 99113073A CN 1103324 C CN1103324 C CN 1103324C
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- China
- Prior art keywords
- activated
- water
- tank
- activated sludge
- sewage
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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
Abstract
The present invention relates to a sewage treatment technology which integrates activated sludge and the upflow activated biological filter method, and comprises specific steps: the first stage of the technology comprises: after sewage is pretreated through a primary settling tank, the sewage enters an activated sludge tank, namely an aeration tank, through a sewage pump, so that activated sludge adsorption treatment is carried out; the second stage of the technology comprises: after the activated sludge is treated through adsorption, water in the activated sludge enters an activated biological filter for biological membrane treatment; then the water enters a precipitation tank for solid-liquid separation treatment, and the sludge is separated; after sludge is treated through separation, water in the sludge is discharged, wherein some water enters a water collecting tank, and a back flushing pump is started through an electromagnetic valve to carry back flushing to the activated biological filter. The present invention has the advantages of small occupation area, low energy consumption and good water quality.
Description
Technical field
The present invention relates to the biochemical treatment of waste water, specifically a kind of active sludge and the incorporate sewage water treatment method of upflowing biological filter process.
Background technology
In the prior art, the biological treatment of traditional sewage aerobic comprises two big class basic skills, i.e. activated sludge process and biological filter process, and wherein activated sludge process is the technology of commonplace employing.Since first activated sludge process sewage work operation in 1914, developed out the kinds of processes form at present.Aspect technical process, develop into continuous operation from intermittent operation, develop into complete hybrid mode from the plug-flow mode; Aspect operating parameter, embody selection to sludge loading, and the expansion of sewage quality and concentration of wastewater scope.According to the different requirements of clearance, can select underload, often load and different load range such as high loading for use.There is high-efficiency bio-filter pool the biological filter, quickens various ways such as biological filter, tower biological filter with development at present behind nozzle-type water distribution biological filter in 1893.No matter be activated sludge process, or biological filter process, it is big all to exist floor space, the problem that operation energy consumption is high.The two-part treatment process of using has absorption-biological degradation technology (AB method) at present, biological filter-activated sludge process (ABF method), though the processing efficiency of above-mentioned two kinds of technologies is than higher, but effluent quality is difficult to reach higher standard, therefore it is higher only to be suitable for concentration of treatment, the less demanding sewage of water outlet.
Summary of the invention
In order to overcome above-mentioned deficiency, it is little to the invention provides a kind of floor space, and energy consumption is low, and water quality is good, active sludge and the incorporate sewage water treatment method of upflowing activated biofiler method.
To achieve these goals, technical scheme of the present invention is: active sludge and upflowing activated biofiler method are integrated, and concrete steps are:
After sewage carried out pre-treatment by preliminary sedimentation tank, entering activated sludge tank through sump pump was that the activated sludge absorption processing is carried out in the aeration tank, is the method fs; Water after activated sludge absorption is handled enters activated biofiler and carries out the microbial film processing, is the method subordinate phase; Enter settling tank then and carry out the solid-liquid separation processing, mud is separated; Will be through the discharging of the water after the mud separating treatment, wherein portion water enters water collecting basin, starts backwashing pump by magnetic valve activated biofiler is carried out back flushing;
Described activated biofiler is a upward flow, the disposable aeration of described activated sludge tank and activated biofiler; Adopt some water distributions or 2 water distribution manners, more described water distribution manner is provided with at the activated sludge tank place, and described 2 water distribution manners are to be provided with respectively at activated sludge tank and activated biofiler place.
The present invention has following advantage:
1. global design of the present invention is reasonable.Upward flow is adopted in the biological filter, and activated sludge tank and biological filter are integrated, two disposable aerations of reactor, and the activated sludge tank water outlet directly enters the biological filter, and making this filter tank is activated biofiler; This processing efficiency demonstrates the synergistic effect of combination, is higher than the processing power of single technology, and indexs such as effluent quality and working cost all are better than present various biochemical processing methods, but primary treatment reaches the reuse water water quality standard.
2. the present invention takes upward flow filtration, has: (1) gas, horizontal line stream make and bring about the desired sensation, water distributes equably, prevent that bubble from condensing, and improve oxygen utilization coefficient; (2) with opposite to flowing through filter down, upward flow filtration continues to provide positive pressure on the height of whole filter tank, can avoid forming air pocket, provides moving half favourable boost conditions; (3) gas, horizontal line stream can be utilized spatial filtering better, and can reduce the back flushing water yield and back washing strength.
3. the present invention is of many uses.It can be used for the processing of sanitary sewage, municipal wastewater, middle and high concentration organic industrial sewage.
Description of drawings
Fig. 1 is a schema of the present invention.
Fig. 2 is apparatus of the present invention synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, 2, active sludge and upflowing activated biofiler method are integrated, and concrete steps are:
After sewage carried out pre-treatment by preliminary sedimentation tank 1, entering activated sludge tank through sump pump 2 and air pump 3 was that aeration tank 4 is carried out activated sludge absorption and handled, and is the method fs; Water after activated sludge absorption is handled enters activated biofiler 5 and carries out the microbial film processing, is the method subordinate phase; Enter settling tank 6 then and carry out the solid-liquid separation processing, mud is separated; Will be through the discharging of the water after the mud separating treatment, wherein portion water enters water collecting basin 7, starts 9 pairs of activated biofilers of backwashing pump 4 by magnetic valve 8 and carries out back flushing;
Described activated biofiler 5 is a upward flow, described activated sludge tank 4 and activated biofiler 5 disposable aerations; Adopt some water distributions or 2 water distribution manners, more described water distribution manner is provided with at activated sludge tank 4 places, and described 2 water distribution manners are to be provided with respectively at activated sludge tank 4 and activated biofiler 5 places.
Embodiment 1
After sewage carries out pre-treatment by preliminary sedimentation tank 1, enter activated sludge tank 4 through sump pump 2 and carry out the activated sludge absorption processing, be the method fs, take some water distributions in activated sludge tank 4 places, the hydraulic detention time of activated sludge tank (AS) 41 hour, water after activated sludge absorption is handled enters 5 li of activated biofilers (UABF) and carries out microbial film and handle then, be the method subordinate phase, hydraulic detention time at activated biofiler 5 is 3 hours, and described AS/UABF on average removes the COD load and is 1.44kgCOD/m
3D; The removal organic load is 0.93kgBOD
5/ m
3D, the total clearance of the average COD of system is 94%, BOD
5Be 97%, SS clearance 96%, AS/UABF is to NH
3The clearance of-N is 95%.
Embodiment 2
After sewage carries out pre-treatment by preliminary sedimentation tank 1, enter activated sludge tank 4 through sump pump 2 and carry out the activated sludge absorption processing, be the method fs, adopt 2 water distributions respectively at activated sludge tank 4 and activated biofiler 5 places, the hydraulic detention time of activated sludge tank (AS) 41 hour, water after activated sludge absorption is handled enters 5 li of activated biofilers (UABF) and carries out microbial film and handle then, be the method subordinate phase, hydraulic detention time at activated biofiler 5 is 2.5 hours, and the COD of AS/UABF removes load and reaches by 2.04kgCOD/m
3D, COD clearance are 92%, and the removal organic load is 1.40kgBOD
5/ m
3D, BOD clearance are 91%, SS clearance 94%, and AS/UABF is to NH
3The clearance of-N is 97%.
Claims (3)
1. sewage water treatment method, it is characterized in that: active sludge and upflowing activated biofiler method are integrated, and concrete steps are:
After sewage carried out pre-treatment by preliminary sedimentation tank (1), entering activated sludge tank through sump pump (2) was that the activated sludge absorption processing is carried out in aeration tank (4), is the method fs; Water after activated sludge absorption is handled enters activated biofiler (5) and carries out the microbial film processing, is the method subordinate phase; Enter settling tank (6) then and carry out the solid-liquid separation processing, mud is separated; Will be through the discharging of the water after the mud separating treatment, wherein portion water enters water collecting basin (7), starts backwashing pump (9) by magnetic valve (8) activated biofiler (4) is carried out back flushing.
2. according to the described sewage water treatment method of claim 1, it is characterized in that: described activated biofiler (5) is a upward flow, described activated sludge tank (4) and the disposable aeration of activated biofiler (5).
3. according to the described sewage water treatment method of claim 1, it is characterized in that: adopt some water distributions or 2 water distribution manners, more described water distribution manner is located to be provided with at activated sludge tank (4), and described 2 water distribution manners are to locate to be provided with respectively at activated sludge tank (4) and activated biofiler (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113073A CN1103324C (en) | 1999-07-02 | 1999-07-02 | Process for treating sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113073A CN1103324C (en) | 1999-07-02 | 1999-07-02 | Process for treating sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1279214A CN1279214A (en) | 2001-01-10 |
| CN1103324C true CN1103324C (en) | 2003-03-19 |
Family
ID=5276308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99113073A Expired - Fee Related CN1103324C (en) | 1999-07-02 | 1999-07-02 | Process for treating sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103324C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337947C (en) * | 2003-06-11 | 2007-09-19 | 金贤 | Process for printing and dyeing waste water treating tower |
| CN100364651C (en) * | 2003-11-27 | 2008-01-30 | 同济大学 | Catalytic oxidation reaction apparatus of trickle bed |
| TW200800812A (en) * | 2006-02-23 | 2008-01-01 | Asahi Kasei Chemicals Corp | Method of treating wastewater |
| CN101462816B (en) * | 2009-01-12 | 2011-09-14 | 浙江大学 | Apparatus for integrated treatment and comprehensive utilization of wastewater and use thereof |
-
1999
- 1999-07-02 CN CN99113073A patent/CN1103324C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1279214A (en) | 2001-01-10 |
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