CN102464428A - Medical institution sewage treatment method - Google Patents
Medical institution sewage treatment method Download PDFInfo
- Publication number
- CN102464428A CN102464428A CN2010105452878A CN201010545287A CN102464428A CN 102464428 A CN102464428 A CN 102464428A CN 2010105452878 A CN2010105452878 A CN 2010105452878A CN 201010545287 A CN201010545287 A CN 201010545287A CN 102464428 A CN102464428 A CN 102464428A
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- CN
- China
- Prior art keywords
- sewage
- treatment
- pond
- aerobic
- anoxic pond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000001465 metallisation Methods 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004155 Chlorine dioxide Substances 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000813 microbial effect Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a sewage treatment method for medical institutions. Comprises sewage pretreatment, anoxic treatment, aerobic treatment, sedimentation treatment and disinfection treatment. The invention has low operation cost, stable operation, high sewage treatment efficiency, continuous standard effluent and qualified discharge, and effectively controls the pollution to the environment, thereby not only improving the environment, but also lightening the load of the urban sewage treatment plant.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, relate in particular to a kind of medical institutions sewage water treatment method.
Background technology
Bioremediation is adopted in medical institutions' WWT at present mostly; Comprise activated sludge process, film-bioreactor, BAF, simple and easy biochemical treatment; All there is certain defective in above method; The activated sludge process operation stability is poor, is prone to sludge bulking and sludge loss take place, and separating effect is not ideal enough; The film-bioreactor GWR is high, and film need carry out backwash, and energy consumption and working cost are high; BAF needs back flushing, operation scheme more complicated; The recoil water yield is bigger; Physical and chemical indexs such as simple and easy biochemical treatment water outlet COD, BOD can not guarantee up to standard.At present general many middle-size and small-size medical institutions do not attach great importance to the processing of sewage; Only rest in the simple and easy biochemical treatment; And there is not the personal management to operate; Water body around the various deleterious organism of its discharging, pathogenic agent, poisonous bacterium etc. have seriously polluted, the physical and mental health that has also endangered the people masses.
Summary of the invention
The present invention for overcome the above problems provide a kind of energy-efficient, running cost is low, the protection environment a kind of medical institutions sewage water treatment method.
Technical scheme of the present invention is: comprise the sewage pre-treatment, also comprise anaerobic treatment, aerobic treatment, precipitation process, disinfect that concrete steps are following:
1), pre-treatment is removed the solid dirt in the sewage, the adjusting water quality and quantity and the ight soil of rationally dissolving.
2), sewage is through promote getting into anoxic pond, with anoxic pond internal reflux nitrification liquid thorough mixing, denitrifying bacteria utilizes the organism in the sewage under anaerobic environment, with NO in the internal reflux nitrification liquid
3-Be converted into N
2Discharge, filler is installed, in the anoxic pond to keep the admixture of sewage.
3), after this, all sewage backflow mud get into Aerobic Pond by anoxic pond, in Aerobic Pond, arrange aerating system oxygenic aeration in the pond, adopt the biological contact oxidation metallization processes, make on the microbial film mikrobe that various aerobic biochemicals reactions take place, and guarantee BOD
5, NH
3The degraded of-N, the terminal mixed solution of Aerobic Pond is delivered to the anoxic pond leading portion.
4), the Aerobic Pond water outlet carries out mud-water separation because of gravity flows into inclined-plate clarifying basin, the mud in the inclined-plate clarifying basin gets into the mud nitrification tank, mixed-liquor return is to anoxic pond on the settling tank.
5), the inclined-plate clarifying basin water outlet gets into sterilization pool, employing disinfection by chlorine dioxide, sterilization back qualified discharge.
The present invention delivers to the oxygen-starved area leading portion to the terminal mixed solution of Aerobic Pond, with the fresh sewage thorough mixing of firm entering anoxic pond, to keep the carrying out of anti-nitration reaction in the oxygen-starved area, guarantees that water outlet TN is up to standard.Aerobic employing biological contact oxidation metallization processes can not produce the sludge bulking problem, and operational management is simple, need not to be provided with special operator; Need not to be provided with mud backflow facility; The sludge quantity that produces is few, and mud can regularly be transported outward by the fecal suction truck of environmental sanitation department; Capacity of resisting impact load is strong, is particularly suitable for the bigger wastewater treatment of water quality and quantity fluctuation; For conventional activated sludge process, volumetric loading is higher, and processing efficiency is high; The power consumption of contact oxidation method is lower.
Running cost of the present invention is low, and is stable, sewage treating efficiency is high, water outlet continues up to standardly, and pollution on the environment has been controlled in qualified discharging effectively, has so not only improved environment, has also alleviated the load of municipal sewage plant.
Embodiment
A kind of medical institutions sewage water treatment method comprises the sewage pre-treatment, also comprises anaerobic treatment, aerobic treatment, precipitation process, disinfects, and concrete steps are following:
1), pre-treatment is removed the solid dirt in the sewage, the adjusting water quality and quantity and the ight soil of rationally dissolving.
2), sewage is through promote getting into anoxic pond, with anoxic pond internal reflux nitrification liquid thorough mixing, denitrifying bacteria utilizes the organism in the sewage under anaerobic environment, with NO in the internal reflux nitrification liquid
3-Be converted into N
2Discharge, filler is installed, in the anoxic pond to keep the admixture of sewage.
3), after this, all sewage backflow mud get into Aerobic Pond by anoxic pond, in Aerobic Pond, arrange aerating system oxygenic aeration in the pond, adopt the biological contact oxidation metallization processes, make on the microbial film mikrobe that various aerobic biochemicals reactions take place, and guarantee BOD
5, NH
3The degraded of-N, the terminal mixed solution of Aerobic Pond is delivered to the anoxic pond leading portion.
4), the Aerobic Pond water outlet carries out mud-water separation because of gravity flows into inclined-plate clarifying basin, the mud in the inclined-plate clarifying basin gets into the mud nitrification tank, mixed-liquor return is to anoxic pond on the settling tank.
5), the inclined-plate clarifying basin water outlet gets into sterilization pool, employing disinfection by chlorine dioxide, sterilization back qualified discharge.
Claims (1)
1. medical institutions' sewage water treatment method comprises the sewage pre-treatment, it is characterized in that: also comprise anaerobic treatment, aerobic treatment, precipitation process, disinfect that concrete steps are following:
1), pre-treatment is removed the solid dirt in the sewage, the adjusting water quality and quantity and the ight soil of rationally dissolving.
2), sewage is through promote getting into anoxic pond, with anoxic pond internal reflux nitrification liquid thorough mixing, denitrifying bacteria utilizes the organism in the sewage under anaerobic environment, with NO in the internal reflux nitrification liquid
3-Be converted into N
2Discharge, filler is installed, in the anoxic pond to keep the admixture of sewage.
3), after this, all sewage backflow mud get into Aerobic Pond by anoxic pond, in Aerobic Pond, arrange aerating system oxygenic aeration in the pond, adopt the biological contact oxidation metallization processes, make on the microbial film mikrobe that various aerobic biochemicals reactions take place, and guarantee BOD
5, NH
3The degraded of-N, the terminal mixed solution of Aerobic Pond is delivered to the anoxic pond leading portion.
4), the Aerobic Pond water outlet carries out mud-water separation because of gravity flows into inclined-plate clarifying basin, the mud in the inclined-plate clarifying basin gets into the mud nitrification tank, mixed-liquor return is to anoxic pond on the settling tank.
5), the inclined-plate clarifying basin water outlet gets into sterilization pool, employing disinfection by chlorine dioxide, sterilization back qualified discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105452878A CN102464428A (en) | 2010-11-16 | 2010-11-16 | Medical institution sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105452878A CN102464428A (en) | 2010-11-16 | 2010-11-16 | Medical institution sewage treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102464428A true CN102464428A (en) | 2012-05-23 |
Family
ID=46068596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105452878A Pending CN102464428A (en) | 2010-11-16 | 2010-11-16 | Medical institution sewage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102464428A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204609A (en) * | 2013-04-16 | 2013-07-17 | 四川同佳环保科技有限责任公司 | Sewage treatment method for small and medium hospitals |
| CN103319056A (en) * | 2013-07-16 | 2013-09-25 | 重庆泰克环保工程设备有限公司 | Hospital sewage treatment system |
| CN110981091A (en) * | 2019-12-10 | 2020-04-10 | 苏州希图环保科技有限公司 | Medical wastewater comprehensive treatment system and treatment method thereof |
-
2010
- 2010-11-16 CN CN2010105452878A patent/CN102464428A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204609A (en) * | 2013-04-16 | 2013-07-17 | 四川同佳环保科技有限责任公司 | Sewage treatment method for small and medium hospitals |
| CN103319056A (en) * | 2013-07-16 | 2013-09-25 | 重庆泰克环保工程设备有限公司 | Hospital sewage treatment system |
| CN110981091A (en) * | 2019-12-10 | 2020-04-10 | 苏州希图环保科技有限公司 | Medical wastewater comprehensive treatment system and treatment method thereof |
| CN110981091B (en) * | 2019-12-10 | 2024-04-05 | 苏州希图环保科技有限公司 | Medical wastewater comprehensive treatment system and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |