CN105016562A - Sewage treatment system with two-stage biological rotating discs - Google Patents
Sewage treatment system with two-stage biological rotating discs Download PDFInfo
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- CN105016562A CN105016562A CN201410166789.8A CN201410166789A CN105016562A CN 105016562 A CN105016562 A CN 105016562A CN 201410166789 A CN201410166789 A CN 201410166789A CN 105016562 A CN105016562 A CN 105016562A
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- stage biological
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- blodisc
- sedimentation tank
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Abstract
The invention provides a sewage treatment system with two-stage biological rotating discs. The sewage treatment system comprises a primary sedimentation tank, a first-stage biological rotating disc, a medium sedimentation tank, a second-stage biological rotating disc, a secondary sedimentation tank, a sludge treatment tank and a disinfection tank, wherein a plurality of pipelines with relatively high BOD contents are introduced to the primary sedimentation tank; a treated mixed solution is introduced to the first-stage biological rotating disc and is treated after being subjected to first sedimentation treatment in the primary sedimentation tank; the mixed solution is introduced to the medium sedimentation tank through the pipelines after being purified and treated by the first-stage biological rotating disc so as to be subjected to second sedimentation treatment; the mixed solution subjected to second sedimentation treatment is introduced to the second-stage biological rotating disc through pipeline connection and is introduced to the secondary sedimentation tank through pipeline connection after being subjected to deep purification treatment of the second-stage biological rotating disc so as to be subjected to third sedimentation treatment; the mixed solution subjected to third sedimentation treatment is introduced to the disinfection tank through pipeline connection; and water subjected to reaction treatment through the disinfection tank is discharged or recycled. The two-stage biological rotating discs are adopted in the sewage treatment system, so that sewage is deeply treated, the treated water is recycled, and furthermore the aims of protecting the environment and saving water resources are achieved.
Description
Technical field
The present invention relates to sewage treatment area, be specifically related to a set of Sewage treatment systems with two-stage biological rotating disk.
Background technology
BOD, biochemical oxygen demand (BOD) or biochemical oxygen demand (chemical oxygen demand (COD) on the five), represent a comprehensively instruction of the aerobic pollution matter content such as Organic substance in water.Illustrate that Organic substance in water carries out oxygenolysis due to the biochemical action of microorganism, when making it inorganization or aerify consume the total quantity of oxygen in water.
Biochemical oxygen demand (BOD) refers under defined terms, the dissolved oxygen of the Biochemical processes consumption of some oxidizable species, particularly decomposing organic matter in microbial decomposition water.Refer to that water sample is full of in completely airtight dissolved oxygen bottle under normal circumstances, cultivate 5d the dark places of 20 DEG C, measure the mass concentration of dissolved oxygen in water sample before and after cultivating respectively, by the difference of the mass concentration of dissolved oxygen before and after cultivation, calculate the dissolved oxygen content that often liter of sample consumes, represent with BOD5 form.Its unit ppm or mg/litre represent.Its value higher explanation organic pollutants matter is more, pollutes also more serious.
In order to make detection data have comparability, a time cycle of general provision, during this period of time, using water sample culturing micro-organisms at a certain temperature, and measuring oxygen in water Expenditure Levels, the five day time of general employing, be called five-day BOD, be denoted as BOD5.The organism contained in numerical value larger proof water is more, therefore pollutes also more serious.
BOD, biochemical oxygen demand (BOD) (BOD) is a kind of environmental monitoring index, is mainly used in organic pollution situation in monitoring water body.General organism can be decomposed by Institute of Micro-biology, but needs oxygen consumed during organic compound in microbial decomposition water, if the dissolved oxygen in water is not enough to the needs supplying microorganism, water body is just in pollutional condition.
Blodisc is by tank and be partially submerged in the biological treatment structures that the rotation disk body in sewage forms.The microbial film that disc surfaces grows contacts the oxygen in groove in dirty water and air repeatedly, makes sewage obtain purification.
Blodisc technique is the one of biomembrance process dirty water living creature processing technique, it is the artificial-strengthening of sewage irrigation and land treatment systems, this facture makes the microorganism of bacterium and mushroom, microfauna growth reproduction on blodisc filling carrier of protozoon one class, forms membranaceous biological mud---microbial film.Sewage after settling tank primary treatment with biofilm contact, the organic pollutant in the microorganism panning sewage on microbial film, as nutrition, makes sewage be purified.In pneumatic blodisc, the dissolved oxygen needed for microbial metabolism is by being located at the aeration tube supply on the downside of blodisc.Disc surfaces is covered with airhood, and the air-operated drive airhood discharged from aeration tube makes dial rotation, and when rotating disk leaves sewage, disc surfaces is formed the water layer of thin layer, water layer also absorbs dissolved oxygen from air.
Blodisc technique is the artificial-strengthening of sewage irrigation and land treatment systems, and this facture makes the microorganism of bacterium and mushroom, microfauna growth reproduction on blodisc filling carrier of protozoon one class, forms membranaceous biological mud---microbial film.Sewage after settling tank primary treatment with biofilm contact, the organic pollutant in the microorganism panning sewage on microbial film, as nutrition, makes sewage be purified.In pneumatic blodisc, the dissolved oxygen needed for microbial metabolism is by being located at the aeration tube supply on the downside of blodisc.Disc surfaces is covered with airhood, and the air-operated drive airhood discharged from aeration tube makes dial rotation, and when rotating disk leaves sewage, disc surfaces is formed the water layer of thin layer, water layer also absorbs dissolved oxygen from air.
The reactor of blodisc is made up of tank and one group of disk: tens of, nearly hundred plastics or glass reinforced plastic disk axle run through, and lie on the groove face of the bar-shaped trough of a section semicircular in shape.Dish footpath is generally no more than 4 meters, several centimetres about greatly, groove footpath, has electric motor and deceleration device rolling disc axle, rotating speed about 1.5 ~ 3 revs/min, and be decided by coil footpath, the perimeter line speed of dish is at about 15 ms/min.Waste water flows to the other end from one end of groove, and dish axle exceeds the water surface, and card about 40% is soaked in water, and about 60% exposes in atmosphere.When dish axle rotates, card alternately contacts with useless water and air.The membranoid substance that card is formed by microorganism growth is covered, and microbial film alternately fully contacts with useless water and air, constantly obtains pollutent and oxygen, purifies liquid waste.Produce shearing stress because of rotation between film and card, increase along with the increase of the thickness of film, to a certain extent, film comes off from card, flows away with water.Blodisc be generally used for the water yield little time.Compare with biological filter, in bio-disc system waste water and biomembranous duration of contact long, and have certain controllability.The normal segmentation of tank, rotating disk often divides into groups, and both can prevent short stream, contributes to again the raising of rate of load condensate and effluent quality, because rate of load condensate declines step by step.If blodisc produces stink, can add a cover.
But industrial wastewater pollution is now serious, adopt one-level blodisc, reacted draining still cannot reach recoverable level, is discharged in environment, contaminate environment, also waste water resource.
Summary of the invention
For prior art Problems existing, the invention provides a set of Sewage treatment systems with two-stage biological rotating disk, adopt two-stage biological rotating disk, deeply treating wastewater, after processing, draining is recycled, not only environmental protection but also saving water resource.Utilize two-stage biological rotating disk in conjunction with preliminary sedimentation tank, medium sediment pool, second pond, repeatedly precipitation process, thoroughly remove sewage impurity, and recycle.
Technical scheme of the present invention is: a set of Sewage treatment systems with two-stage biological rotating disk, comprises preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond, sludge treatment pond, sterilization pool;
The countless pipelines that BOD content is higher pass into preliminary sedimentation tank, after preliminary sedimentation tank first time precipitation process, mixed solution after process is passed into the process of one-level blodisc, after one-level blodisc purifying treatment, pipeline passes into medium sediment pool and carries out second time precipitation process, mixed solution pipeline after second time precipitation process is connected and passes into two stage biological rotating disk, after the process of two stage biological sabot deep purifying, pipeline connects and passes into second pond and carry out third time precipitation process, mixed solution pipeline after third time precipitation process is connected and passes into sterilization pool, water after sterilization pool reaction treatment is emitted or recycles.
Further, the mud after preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond reaction treatment enters sludge treatment pond and carries out reaction treatment.
Further, described blodisc is biological treatment structures, is made up of tank and the rotation disk body that can be immersed in sewage.
Further, described sterilization pool adopts chlorination, and duration of contact is 30 ± 5min.
Further, aeration tube is provided with on the downside of described blodisc.
The invention has the beneficial effects as follows: adopt two-stage biological rotating disk, deeply treating wastewater, after processing, draining is recycled, not only environmental protection but also saving water resource.Meanwhile, utilize two-stage biological rotating disk in conjunction with preliminary sedimentation tank, medium sediment pool, second pond, repeatedly precipitation process, thoroughly remove sewage impurity, and recycle.
Accompanying drawing explanation
Figure 1 shows that art breading schema of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, a set of Sewage treatment systems with two-stage biological rotating disk, comprises preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond, sludge treatment pond, sterilization pool.
The countless pipelines that BOD content is higher pass into preliminary sedimentation tank, after preliminary sedimentation tank first time precipitation process, mixed solution after process is passed into the process of one-level blodisc, after one-level blodisc purifying treatment, pipeline passes into medium sediment pool and carries out second time precipitation process, mixed solution pipeline after second time precipitation process is connected and passes into two stage biological rotating disk, after the process of two stage biological sabot deep purifying, pipeline connects and passes into second pond and carry out third time precipitation process, mixed solution pipeline after third time precipitation process is connected and passes into sterilization pool, water after sterilization pool reaction treatment is emitted or recycles.
Wherein, the mud after preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond reaction treatment enters sludge treatment pond and carries out reaction treatment.Blodisc is biological treatment structures, and downside is provided with aeration tube, is made up of tank and the rotation disk body that can be immersed in sewage.Sterilization pool adopts chlorination, and duration of contact is 30 ± 5min.
Preliminary sedimentation tank can remove in waste water can hypostasis and floating matter.Waste water is after just sinking, about can remove can 50% of hypostasis, grease and floating matter, 20% of BOD, calculate by removing unit mass BOD or solids, preliminary sedimentation tank is the purifying step of saving the most economically, all easily adopts preliminary sedimentation tank pre-treatment for sanitary sewage and the higher industrial sewage of suspended substance.
Medium sediment pool is the further precipitation to sewage.Second pond and secondary sedimentation basins are the important component parts of Sludge System, and its effect mainly makes mud be separated, and mixed solution is clarified, concentrates and returnedactivatedsludge.Its working effect directly can affect effluent quality and the returned sluge concentration of Sludge System.
Adopt two-stage biological rotating disk, deeply treating wastewater, after processing, draining is recycled, not only environmental protection but also saving water resource.Meanwhile, utilize two-stage biological rotating disk in conjunction with preliminary sedimentation tank, medium sediment pool, second pond, repeatedly precipitation process, thoroughly remove sewage impurity, and recycle.
Although prior art scheme of the present invention and preferred embodiment statement as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when doing various changes, substitute and retouching.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (5)
1. a set of Sewage treatment systems with two-stage biological rotating disk, is characterized in that: comprise preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond, sludge treatment pond, sterilization pool;
The countless pipelines that BOD content is higher pass into preliminary sedimentation tank, after preliminary sedimentation tank first time precipitation process, mixed solution after process is passed into the process of one-level blodisc, after one-level blodisc purifying treatment, pipeline passes into medium sediment pool and carries out second time precipitation process, mixed solution pipeline after second time precipitation process is connected and passes into two stage biological rotating disk, after the process of two stage biological sabot deep purifying, pipeline connects and passes into second pond and carry out third time precipitation process, mixed solution pipeline after third time precipitation process is connected and passes into sterilization pool, water after sterilization pool reaction treatment is emitted or recycles.
2. a set of Sewage treatment systems with two-stage biological rotating disk according to claim 1, is characterized in that: the mud after preliminary sedimentation tank, one-level blodisc, medium sediment pool, two stage biological rotating disk, second pond reaction treatment enters sludge treatment pond and carries out reaction treatment.
3. a set of industrial wastewater treatment system according to claim 1, is characterized in that: described blodisc is biological treatment structures, is made up of tank and the rotation disk body that can be immersed in sewage.
4. a set of industrial wastewater treatment system according to claim 1, is characterized in that: described sterilization pool adopts chlorination, and duration of contact is 30 ± 5min.
5. a set of industrial wastewater treatment system according to claim 1, is characterized in that: be provided with aeration tube on the downside of described blodisc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166789.8A CN105016562A (en) | 2014-04-23 | 2014-04-23 | Sewage treatment system with two-stage biological rotating discs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166789.8A CN105016562A (en) | 2014-04-23 | 2014-04-23 | Sewage treatment system with two-stage biological rotating discs |
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| CN105016562A true CN105016562A (en) | 2015-11-04 |
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| CN201410166789.8A Pending CN105016562A (en) | 2014-04-23 | 2014-04-23 | Sewage treatment system with two-stage biological rotating discs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107777770A (en) * | 2016-08-29 | 2018-03-09 | 江苏众胜灭菌设备科技有限公司 | A set of sewage water treatment method with biological rotating disk |
| CN108203154A (en) * | 2018-03-14 | 2018-06-26 | 哈密绿天使纤维科技有限公司 | Sewage-treatment plant and system |
-
2014
- 2014-04-23 CN CN201410166789.8A patent/CN105016562A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107777770A (en) * | 2016-08-29 | 2018-03-09 | 江苏众胜灭菌设备科技有限公司 | A set of sewage water treatment method with biological rotating disk |
| CN108203154A (en) * | 2018-03-14 | 2018-06-26 | 哈密绿天使纤维科技有限公司 | Sewage-treatment plant and system |
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