CN105036479A - Method for treating medical waste water - Google Patents
Method for treating medical waste water Download PDFInfo
- Publication number
- CN105036479A CN105036479A CN201510472994.1A CN201510472994A CN105036479A CN 105036479 A CN105036479 A CN 105036479A CN 201510472994 A CN201510472994 A CN 201510472994A CN 105036479 A CN105036479 A CN 105036479A
- Authority
- CN
- China
- Prior art keywords
- sewage
- stainless steel
- filter screen
- pond
- steel filter
- 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
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a method for treating medical waste water. According to the technical scheme, the method includes the steps of sterilizing, anaerobic treating, precipitating and adsorbing. According to the method, as a chemical method, a biological method and a physical method are combined, pathogenic microorganisms, heavy metal ions and radioactive elements in the water are effectively removed, injuries to the human body and damage to the environment are reduced to the maximum degree, the removing rate is high, and cost is low; water hyacinths and typha orientalis are planted in an artificial wetland pool, heavy metal can be enriched and recycled, the environment can be further beautified, and air can be purified; the pH is adjusted through acetic acid and lime, and the price is low; due to the acetic acid, the sterilizing effect is achieved, the content of the acetic acid in the waste water can be increased, and the marsh gas amount can be increased; generated marsh gas can be used for cooking and illuminating of staff dining halls, and a large amount of coal, a large amount of electricity and a large amount of natural gas are saved; when yeast carries out adsorption, wine making residues are sufficiently used, waste is turned into wealth, waste fermentation mycelia are sufficiently used, and cost is saved; secondary pollution can be avoided, cost is low, the effect is remarkable, and the sustainable development view is achieved.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, particularly relate to a kind of medical sewage treatment process.
Background technology
Medical institutions comprise hospital, commune hospital, nursing house, ambulatorium, clinic, first-aid station etc., according to statistics, about 21000 of the above medical institutions of counties and districts of current China level (containing hospital of industrial and mining enterprises, Army Hospital, Civilian Hospital and Chinese-foreign joint hospital etc.) sum.There is certain Waste Water Treatment in hospital large-scale comparatively speaking, but the waste water treatment system for hospitals construction aspect of small scale is weaker, generally China's major part medical institutions waste water is not processed preferably, hospital sewage source and complicated component, containing pathogenic microbes, poisonous, harmful physical chemistry pollutent and radiocontamination etc., there is the features such as space-pollution, acute infection and latent infection, the important channel of an epidemic disease diffusion can be become, serious environment pollution without effective process.
Function, the facility of all departments of medical institutions are different with composition of personnel situation, produce the main department of sewage and facility has: consulting room, laboratory, ward, laundry, X-ray are taken pictures the drainings such as developing and printing, Animal House, isotope therapy diagnosis, Operation theatre, dining room, dormitory.Containing acid, alkali, suspended solids, BOD, COD and animals and plants wet goods poisonous and harmful substances in medical institutions' sewage.The sewage pollution factor that section office of different department produce is different, and as heavy metal wastewater thereby, oily(waste)water, developing and printing waste water, radioactive wastewater etc., and the sewage that different properties medical institutions produce also has a great difference.Waste water quality is similar to sanitary sewage, but more general sanitary sewage emission behaviour is complicated, and water yield fluctuation is large, medical institutions' sewage is subject to the pathogenic microbes pollutions such as ight soil, infective bacterial and virus simultaneously, there is infectivity, can induce an illness, there is higher potential safety hazard.
Summary of the invention
The object of the invention is to solve the problem, providing a kind of medical sewage treatment process.
A kind of medical sewage treatment process, technical scheme comprises the following steps:
(1) through 4 order stainless steel filter screen, sewage is concentrated in collecting tank, regulates pH to 6 ~ 8, and carry out uv irradiating, irradiation dose 30 ~ 40mJ/cm
2, 20 minutes time;
(2) by regulate after sewage discharge to methane-generating pit, carry out anaerobically fermenting;
(3) flow to settling tank from the sewage of methane-generating pit discharge through 10 order stainless steel filter screen, adjust pH to 9 ~ 11 with lime, add the polyacrylamide of 0.1% ~ 0.3%, stir, leave standstill 1 ~ 2 hour, through 80 order stainless steel filter screen;
(4) sewage after filtering flows into artificial swamp pond, plants Herba Eichhorniae and cattail in pond, every square metre of plantation 8 ~ 10 strains, and sewage flows out through 100 order stainless steel filter screen;
(5) effluent stream after filtering, to microorganism pond, adjusts pH to 3 ~ 5 with acetic acid, carries out yeast absorption 6 ~ 8 hours, flows out through 100 order stainless steel filter screen;
(6) effluent stream is to sterilization pool, and adjust pH to 6.5 ~ 7.5 with lime, utilize ozone to carry out disinfection, ozone concn is 10 ~ 15mg/L, sterilizes 15 ~ 20 minutes;
(7) from sterilization pool flow out sewage through medical stone absorption after, via hole diameter be 10 microns non-woven fabrics filter, discharge.
The microorganism pond of described step 5), containing Angel yeast saccharomyces cerevisiae in pond, originates as distiller's wash, through autoclaved, containing a large amount of yeast saccharomyces cerevisiae thalline.
Beneficial effect of the present invention is: medical sewage treatment process provided by the invention, combine with chemical method, biological process and Physical, pollutent in effective removal water, particularly pathogenic micro-organism, heavy metal ion and radioelement, reduce the harm to human body and environment to greatest extent, clearance is high, and cost is low; Herba Eichhorniae and cattail is planted in artificial swamp pond, can not only enrichment and reclaim heavy metal, can also beautify the environment, purify air; Regulate pH with acetic acid and lime, price is low, and acetic acid has germicidal action, can increase again the acetic acid content in sewage, can increase methane quantity; The biogas produced can be cooked for staff canteen and throw light on, and has saved a large amount of coal, electricity and Sweet natural gas; Take full advantage of distiller's wash during the absorption of yeast thalline, turn waste into wealth, make full use of fermentation fungi body, cost-saving; The present invention can not produce secondary pollution, and cost is low, Be very effective, realizes sustainable development and sees.
Embodiment
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification sheets, as long as but be all subject to the protection of patent law in right of the present invention.
Embodiment 1
A kind of medical sewage treatment process, technical scheme comprises the following steps:
(1) through 4 order stainless steel filter screen, sewage is concentrated in collecting tank, regulates pH to 6, and carry out uv irradiating, irradiation dose 30mJ/cm
2, 20 minutes time;
(2) by regulate after sewage discharge to methane-generating pit, carry out anaerobically fermenting;
(3) flow to settling tank from the sewage of methane-generating pit discharge through 10 order stainless steel filter screen, adjust pH to 9 with lime, add the polyacrylamide of 0.1%, stir, leave standstill 1 hour, through 80 order stainless steel filter screen;
(4) sewage after filtering flows into artificial swamp pond, plants Herba Eichhorniae and cattail in pond, every square metre of plantation 8 strains, and sewage flows out through 100 order stainless steel filter screen;
(5) effluent stream after filtering is to microorganism pond, and distiller's wash, through autoclaved, adds in microorganism pond, containing a large amount of yeast saccharomyces cerevisiae thalline, adjusts pH to 3, carry out yeast and adsorb 6 hours with acetic acid, flow out through 100 order stainless steel filter screen;
(6) effluent stream is to sterilization pool, and adjust pH to 6.5 with lime, utilize ozone to carry out disinfection, ozone concn is 10mg/L, sterilizes 15 minutes;
(7) from sterilization pool flow out sewage through medical stone absorption after, via hole diameter be 10 microns non-woven fabrics filter, discharge.
Embodiment 2
A kind of medical sewage treatment process, technical scheme comprises the following steps:
(1) through 4 order stainless steel filter screen, sewage is concentrated in collecting tank, regulates pH to 7, and carry out uv irradiating, irradiation dose 35mJ/cm
2, 20 minutes time;
(2) by regulate after sewage discharge to methane-generating pit, carry out anaerobically fermenting;
(3) flow to settling tank from the sewage of methane-generating pit discharge through 10 order stainless steel filter screen, adjust pH to 10 with lime, add the polyacrylamide of 0.2%, stir, leave standstill 1.5 hours, through 80 order stainless steel filter screen;
(4) sewage after filtering flows into artificial swamp pond, plants Herba Eichhorniae and cattail in pond, every square metre of plantation 9 strains, and sewage flows out through 100 order stainless steel filter screen;
(5) effluent stream after filtering is to microorganism pond, and distiller's wash, through autoclaved, adds in microorganism pond, containing a large amount of yeast saccharomyces cerevisiae thalline, adjusts pH to 4, carry out yeast and adsorb 7 hours with acetic acid, flow out through 100 order stainless steel filter screen;
(6) effluent stream is to sterilization pool, and adjust pH to 7 with lime, utilize ozone to carry out disinfection, ozone concn is 12mg/L, sterilizes 17 minutes;
(7) from sterilization pool flow out sewage through medical stone absorption after, via hole diameter be 10 microns non-woven fabrics filter, discharge.
Embodiment 3
A kind of medical sewage treatment process, technical scheme comprises the following steps:
(1) through 4 order stainless steel filter screen, sewage is concentrated in collecting tank, regulates pH to 8, and carry out uv irradiating, irradiation dose 40mJ/cm
2, 20 minutes time;
(2) by regulate after sewage discharge to methane-generating pit, carry out anaerobically fermenting;
(3) flow to settling tank from the sewage of methane-generating pit discharge through 10 order stainless steel filter screen, adjust pH to 11 with lime, add the polyacrylamide of 0.3%, stir, leave standstill 2 hours, through 80 order stainless steel filter screen;
(4) sewage after filtering flows into artificial swamp pond, plants Herba Eichhorniae and cattail in pond, every square metre of plantation 10 strains, and sewage flows out through 100 order stainless steel filter screen;
(5) effluent stream after filtering is to microorganism pond, and distiller's wash, through autoclaved, adds in microorganism pond, containing a large amount of yeast saccharomyces cerevisiae thalline, adjusts pH to 5, carry out yeast and adsorb 8 hours with acetic acid, flow out through 100 order stainless steel filter screen;
(6) effluent stream is to sterilization pool, and adjust pH to 7.5 with lime, utilize ozone to carry out disinfection, ozone concn is 15mg/L, sterilizes 20 minutes;
(7) from sterilization pool flow out sewage through medical stone absorption after, via hole diameter be 10 microns non-woven fabrics filter, discharge.
Adopt potassium dichromate process to measure COD, dilution inoculation method measures BOD
5, Na's reagent measures NH
3-N, graphite furnace atomic absorption spectrometry surveys total cadmium, spectrophotometry colourity, and weighting method surveys SS.Table 1 is the disposition of the medical sewage of embodiment.
The disposition of the medical sewage of table 1 embodiment
| Project | COD/mg/L | BOD 5/mg/L | NH 3-N/mg/L | Total cadmium/mg/L | Colourity | SS/mg/L |
| Former water | 350 | 150 | 50 | 0.3 | 150 | 120 |
| Embodiment 1 | 45 | 15 | 6 | - | 15 | 15 |
| Embodiment 2 | 42 | 12 | 5 | - | 17 | 16 |
| Embodiment 3 | 44 | 14 | 5 | - | 16 | 15 |
Note: "-" represents lower than detection limit.
As can be seen from the data of table 1, after the sewage of medical treatment processes by the treatment process of medical sewage provided by the invention, COD(chemical oxygen demand (COD) in embodiment), BOD
5(biochemical oxygen demand (BOD)), NH
3-N(ammonia nitrogen), total cadmium, colourity and SS(suspended solids) content all significantly better than former water, and to meet " Discharge standard of water pollutants for medical organization ", illustrate that the treatment process of medical sewage provided by the invention is feasible, effectively.
Claims (2)
1. a medical sewage treatment process, is characterized in that, technical scheme comprises the following steps:
(1) through 4 order stainless steel filter screen, sewage is concentrated in collecting tank, regulates pH to 6 ~ 8, and carry out uv irradiating, irradiation dose 30 ~ 40mJ/cm
2, 20 minutes time;
(2) by regulate after sewage discharge to methane-generating pit, carry out anaerobically fermenting;
(3) flow to settling tank from the sewage of methane-generating pit discharge through 10 order stainless steel filter screen, adjust pH to 9 ~ 11 with lime, add the polyacrylamide of 0.1% ~ 0.3%, stir, leave standstill 1 ~ 2 hour, through 80 order stainless steel filter screen;
(4) sewage after filtering flows into artificial swamp pond, plants Herba Eichhorniae and cattail in pond, every square metre of plantation 8 ~ 10 strains, and sewage flows out through 100 order stainless steel filter screen;
(5) effluent stream after filtering, to microorganism pond, adjusts pH to 3 ~ 5 with acetic acid, carries out yeast absorption 6 ~ 8 hours, flows out through 100 order stainless steel filter screen;
(6) effluent stream is to sterilization pool, and adjust pH to 6.5 ~ 7.5 with lime, utilize ozone to carry out disinfection, ozone concn is 10 ~ 15mg/L, sterilizes 15 ~ 20 minutes;
(7) from sterilization pool flow out sewage through medical stone absorption after, via hole diameter be 10 microns non-woven fabrics filter, discharge.
2. a kind of medical sewage treatment process as claimed in claim 1, is characterized in that, the microorganism pond of described step 5), containing Angel yeast saccharomyces cerevisiae in pond, originates as distiller's wash, through autoclaved, containing a large amount of yeast saccharomyces cerevisiae thalline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472994.1A CN105036479A (en) | 2015-08-05 | 2015-08-05 | Method for treating medical waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472994.1A CN105036479A (en) | 2015-08-05 | 2015-08-05 | Method for treating medical waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105036479A true CN105036479A (en) | 2015-11-11 |
Family
ID=54443529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510472994.1A Pending CN105036479A (en) | 2015-08-05 | 2015-08-05 | Method for treating medical waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105036479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879544A (en) * | 2019-03-26 | 2019-06-14 | 长沙如洋环保科技有限公司 | A kind of scenic spot domestic sewage processing method |
| CN116881747A (en) * | 2023-09-06 | 2023-10-13 | 武汉华康世纪医疗股份有限公司 | Intelligent treatment method and system based on medical wastewater monitoring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN101348308A (en) * | 2008-08-27 | 2009-01-21 | 张政权 | Novel town sewerage mixed treatment process |
| CN101481194A (en) * | 2008-04-26 | 2009-07-15 | 张政权 | Town domestic sewage treatment process |
| CN102745855A (en) * | 2011-04-19 | 2012-10-24 | 北京林业大学 | Method and device for treating domestic sewage from villages and towns |
-
2015
- 2015-08-05 CN CN201510472994.1A patent/CN105036479A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN101481194A (en) * | 2008-04-26 | 2009-07-15 | 张政权 | Town domestic sewage treatment process |
| CN101348308A (en) * | 2008-08-27 | 2009-01-21 | 张政权 | Novel town sewerage mixed treatment process |
| CN102745855A (en) * | 2011-04-19 | 2012-10-24 | 北京林业大学 | Method and device for treating domestic sewage from villages and towns |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879544A (en) * | 2019-03-26 | 2019-06-14 | 长沙如洋环保科技有限公司 | A kind of scenic spot domestic sewage processing method |
| CN109879544B (en) * | 2019-03-26 | 2022-03-08 | 长沙如洋环保科技有限公司 | Scenic spot domestic sewage treatment method |
| CN116881747A (en) * | 2023-09-06 | 2023-10-13 | 武汉华康世纪医疗股份有限公司 | Intelligent treatment method and system based on medical wastewater monitoring |
| CN116881747B (en) * | 2023-09-06 | 2023-11-24 | 武汉华康世纪医疗股份有限公司 | Intelligent treatment method and system based on medical wastewater monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tang et al. | Enhanced nitrogen and phosphorus removal from domestic wastewater via algae-assisted sequencing batch biofilm reactor | |
| Liu et al. | Capabilities and mechanisms of microalgae on removing micropollutants from wastewater: A review | |
| Zhou et al. | Simultaneous removal of inorganic and organic compounds in wastewater by freshwater green microalgae | |
| Abdel-Raouf et al. | Microalgae and wastewater treatment | |
| García et al. | A comparison of bacterial removal efficiencies in constructed wetlands and algae-based systems | |
| Kumari et al. | Effect of aeration and mixed culture of Eichhornia crassipes and Salvinia natans on removal of wastewater pollutants | |
| MeiTing et al. | Growth and repair potential of three species of bacteria in reclaimed wastewater after UV disinfection | |
| Babatsouli et al. | Single stage treatment of saline wastewater with marine bacterial–microalgae consortia in a fixed-bed photobioreactor | |
| Gutiérrez-Alfaro et al. | Combining sun-based technologies (microalgae and solar disinfection) for urban wastewater regeneration | |
| Hu et al. | Residual β-lactam antibiotics and ecotoxicity to Vibrio fischeri, Daphnia magna of pharmaceutical wastewater in the treatment process | |
| Sahu | Reduction of organic and inorganic pollutant from waste water by algae | |
| CN104787959A (en) | Hospital wastewater treatment system and treatment method | |
| CN104944710A (en) | Medical wastewater three-stage treatment technique | |
| CN203890204U (en) | Comprehensive treatment system of medical wastewater | |
| CN105036479A (en) | Method for treating medical waste water | |
| Foglia et al. | Anaerobic Membrane Bioreactor for Urban Wastewater Valorisation: Operative Strategies and Fertigation Reuse. | |
| CN104291444B (en) | A kind of contact hydrolysis-algae micro-aeration compound sewage processing system and method | |
| CN105174600A (en) | Industrial sewage treatment system | |
| CN105483045A (en) | Strain composition for treating VOCs containing waste gas and method for treating VOCs containing waste gas | |
| CN102491534B (en) | Waste water treatment method using online bacterium throwing device | |
| CN205061800U (en) | Large -scale pig farm advanced waste treatment system | |
| CN107828773A (en) | A kind of preparation method of the domestication agent of the activated sludge of brine waste processing | |
| CN205710287U (en) | One way of life sewage disposal system | |
| CN107935189A (en) | A kind of technique using algae microballoon processing sanitary sewage | |
| Hu et al. | Effects of combined technologies on environmental prevention against livestock pollution in biogas projects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |