CN101723537A - Novel process for urban sewage reutilization and treatment - Google Patents
Novel process for urban sewage reutilization and treatment Download PDFInfo
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- CN101723537A CN101723537A CN200810157873A CN200810157873A CN101723537A CN 101723537 A CN101723537 A CN 101723537A CN 200810157873 A CN200810157873 A CN 200810157873A CN 200810157873 A CN200810157873 A CN 200810157873A CN 101723537 A CN101723537 A CN 101723537A
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Abstract
The invention relates to a novel process for urban sewage reutilization and treatment. The novel process comprises a coarse bar screen, a water collecting basin, a lift pump room, a fine bar screen, a grit chamber, a hydrolytic tank, an anoxic and aerobic aeration tank, a sedimentation tank and a filtering basin. The novel process has the advantages that the process has reasonable process design; and the electric power consumption of the novel process ranges between 0.22 and 0.45kWh when treating each cubic meter of sewage, while the total expense ranges from 0.25 to 0.5 Yuan. The novel process is characterized in that: the sewage flows into a reactor A to be mixed with activated sludge and then enters a reactor B to be purified and discharged; and the separated sludge enters the reactor B and refluxes to the reactor A before discharged. The sewage treated by the novel process can meet or even exceed the water quality standards of urban reclaimed water.
Description
Technical field:
The invention belongs to field of environment protection, what relate to is that a kind of municipal effluent utilizes New Process for Treatment again.
Background technology:
Since the eighties, biological sewage treatment novel process and Research on New, development and application, in worldwide, obtained considerable progress, and many new biologic process for treating sewage technology appear, comprising combination process of activated sludge process, contact oxidation method, AB method, SBR method (comprising CAST, MSBR technology etc.), oxidation ditch process, concurrent oxidation and aquoiysis technology and above all kinds of technologies etc., what have obtains using more widely in the engineering practice of China various places.
The present invention relates to a kind of municipal effluent and utilize New Process for Treatment again, is the treatment process of quality standard during a kind of sewage disposal water quality reaches, and realizes sewage recycling.The object of the invention provides a kind of municipal sewage as a resource treatment process, and this technology reduces power consumption, and technical process is reasonable, compact, and sewage water denitrification, dephosphorization effect are remarkable, and water quality reaches middle water quality standard.
A kind of city sewage resource treating process, it may further comprise the steps: sewage enters water collecting basin after coarse rack is removed the bulk foreign material; Send into fine fack from the water collecting basin lifting sewage, remove less foreign material, pass through settling pit; Water behind the sand setting is sent into anoxic, aerobic aeration pond through hydrolytic tank, and hydrolytic tank bottom mud is delivered to the mud thickener; Water after aeration is handled enters settling tank, and settling tank bottom mud is delivered to aeration tank and mud thickener; The water that settling tank comes out is delivered to filtering basin, the water reuse after the filtration, and counter-flushing liquid is delivered to water collecting basin; The mud that the mud thickener comes out is through the dehydration outward transport, and the water of deviating from is delivered to water collecting basin.It is characterized in that: sewage flows into reactor A to be mixed with active sludge, enters reactor B then and is cleaned afterwards and discharges, and isolated mud enters reactor B and is back to reactor A again and discharges then.Wherein, enter the hydrolytic tank effluent flow rate and be controlled at 1.5 1 2.5 hours, 2.5 14 hours residence time.Be added with composite activator iron or carbon in reactor A and the reactor B.
The advantage of process makes full use complex enzyme/activated sludge of the present invention by technological design cleverly, has overcome the shortcoming that sludge bulking easily takes place existing sewage treatment process, possesses the characteristics of economy, high efficiency, operation management simplicity.Adopt organic sewages such as art breading town sewage of the present invention, trade effluent, sewage treatment project investment can reduce by 25 one 40%, and running cost reduces by 15 one 30%, and floor space reduces 30%, and operational administrative is very simple.The present invention has sewage purification and the isolating characteristics of contaminant degradation, the degraded of the separation of pollutent from sewage and pollutent is carried out in reactor different, that volume is less respectively, changed the sewage disposal path, shortened the treatment time of sewage, effectively reduced the load of aerating apparatus, the processing power and the processing efficiency of reactor have been improved, significantly reduce sewage treatment project investment and running cost, reduce the floor space of sewage treatment project, made things convenient for the operation control of sewage disposal.
Claims (3)
1. a municipal effluent utilizes New Process for Treatment again, it is characterized in that it may further comprise the steps: sewage enters water collecting basin after coarse rack is removed the bulk foreign material; Send into fine fack from the water collecting basin lifting sewage, remove less foreign material, pass through settling pit; Water behind the sand setting is sent into anoxic, aerobic aeration pond through hydrolytic tank, and hydrolytic tank bottom mud is delivered to the mud thickener; Water after aeration is handled enters settling tank, and settling tank bottom mud is delivered to aeration tank and mud thickener; The water that settling tank comes out is delivered to filtering basin, the water reuse after the filtration, and counter-flushing liquid is delivered to water collecting basin; The mud that the mud thickener comes out is through the dehydration outward transport, and the water of deviating from is delivered to water collecting basin.It is characterized in that: sewage flows into reactor A to be mixed with active sludge, enters reactor B then and is cleaned afterwards and discharges, and isolated mud enters reactor B and is back to reactor A again and discharges then.
2. a kind of municipal effluent according to claim 1 utilizes New Process for Treatment again, it is characterized in that the described hydrolytic tank effluent flow rate that enters was controlled at residence time 2.5-4 hour 1.5-2.5 hour.
3. a kind of municipal effluent according to claim 1 utilizes New Process for Treatment again, it is characterized in that being added with in reactor A and the reactor B composite activator iron or carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810157873A CN101723537A (en) | 2008-10-21 | 2008-10-21 | Novel process for urban sewage reutilization and treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810157873A CN101723537A (en) | 2008-10-21 | 2008-10-21 | Novel process for urban sewage reutilization and treatment |
Publications (1)
| Publication Number | Publication Date |
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| CN101723537A true CN101723537A (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810157873A Pending CN101723537A (en) | 2008-10-21 | 2008-10-21 | Novel process for urban sewage reutilization and treatment |
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| CN (1) | CN101723537A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701455A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Small buried sewage treatment device |
| CN103449687A (en) * | 2013-09-30 | 2013-12-18 | 山西科元晟地科技有限公司 | Method for processing domestic sewage through diatomite biological system |
| CN105906162A (en) * | 2016-06-15 | 2016-08-31 | 北京工业大学 | Short-course urban wastewater treatment technology |
| CN105923910A (en) * | 2016-06-15 | 2016-09-07 | 北京工业大学 | Domestic sewage treatment improvement device and process |
| CN106865898A (en) * | 2017-03-14 | 2017-06-20 | 沃邦环保有限公司 | For the processing method of sludge in municipal sewage treatment |
| CN107673493A (en) * | 2017-11-03 | 2018-02-09 | 蚌埠市兄弟粮油食品科技有限公司 | A kind of multi-ladder hierarchical ground water purification treatment system |
-
2008
- 2008-10-21 CN CN200810157873A patent/CN101723537A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701455A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Small buried sewage treatment device |
| CN103449687A (en) * | 2013-09-30 | 2013-12-18 | 山西科元晟地科技有限公司 | Method for processing domestic sewage through diatomite biological system |
| CN105906162A (en) * | 2016-06-15 | 2016-08-31 | 北京工业大学 | Short-course urban wastewater treatment technology |
| CN105923910A (en) * | 2016-06-15 | 2016-09-07 | 北京工业大学 | Domestic sewage treatment improvement device and process |
| CN106865898A (en) * | 2017-03-14 | 2017-06-20 | 沃邦环保有限公司 | For the processing method of sludge in municipal sewage treatment |
| CN107673493A (en) * | 2017-11-03 | 2018-02-09 | 蚌埠市兄弟粮油食品科技有限公司 | A kind of multi-ladder hierarchical ground water purification treatment system |
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Open date: 20100609 |