CN108046521A - A kind of processing method of medical waste water - Google Patents
A kind of processing method of medical waste water Download PDFInfo
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- CN108046521A CN108046521A CN201711325306.4A CN201711325306A CN108046521A CN 108046521 A CN108046521 A CN 108046521A CN 201711325306 A CN201711325306 A CN 201711325306A CN 108046521 A CN108046521 A CN 108046521A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of processing methods of medical waste water, are related to medical waste water processing technology field.The processing method of medical waste water provided by the invention includes：Medical waste water is collected, is carried out disinfection with chemosterilant to it processing；Primary filter processing is carried out to medical waste water to remove large granular impurity therein；Adjust the pH to 6.5 8 of medical waste water；Anaerobic-aerobic processing is carried out to medical waste water；Flocculation sediment processing is carried out to medical waste water；Completely after precipitation, medical waste water qualified discharge, precipitation focuses on after collecting.The processing method of medical waste water provided by the invention carries out exterminating bacterium processing to medical waste water first, kill the pathogenic microorganism in medical waste water, pathogenic microorganism is avoided to be spread with processing procedure, so as to which pathogenic microorganism be avoided to cause secondary pollution to the medical waste water of later lot, and reduce the risk of pathogenic microorganism diffusion；Using chemical mode exterminating bacterium in the present invention, efficient to the elimination of pathogenic microorganism, effect is good.
Description
Technical field
The present invention relates to medical waste water process field, especially a kind of processing method of medical waste water.
Background technology
With flourishing for China's medical industry, the yield of medical waste water is also increasing.Medical waste water is mainly
The waste water of the discharges such as consulting room, laboratory, ward, laundry and operating room from medical treatment, wastewater source and ingredient are very multiple
It is miscellaneous.Containing substantial amounts of pathogenetic bacteria, virus and chemical agent in hospital wastewater, such as drug, disinfectant, diagnosis agent, washing
Agent and substantial amounts of pathogenic microbes, parasitic ovum and various viruses, such as roundworm egg, hepatitis virus, tulase and dysentery bacillus
Deng.Feature with space-pollution, acute infection and latent infection.Compared with industrial wastewater and sanitary wastewater, it has water
The characteristics of small, pollution power is strong is measured, is such as allowed to discharge, the serious polluted source of meeting spreads the disease.
Now have in the art much for the processing system and method for medical waste water, the mostly processing in trade effluent
Plus bactericidal unit or process on the basis of system, and common sterilization method is high-temperature sterilization and filtration sterilization.Its
It has a drawback in that：（1）Processing procedure is unreasonable；Often pathogenic microorganism is handled in final step, causes cause of disease
It is retained in the device of microorganism easily in front, secondary pollution is caused to the medical waste water of latter batch, and it is micro- to increase cause of disease
The risk of biology diffusion.（2）High-temperature sterilization and filtration sterilization can not play well the various bacterial viruses in medical waste water
Killing effect, effect are unsatisfactory.
The content of the invention
The goal of the invention of the present invention is：In view of the above problems, a kind of processing method of medical waste water is provided, it should
In method, exterminating bacterium processing is carried out to medical waste water first, the pathogenic microorganism in medical waste water is killed, avoids the micro- life of cause of disease
Object is spread with processing procedure, so as to which pathogenic microorganism be avoided to cause secondary pollution to the medical waste water of later lot, and is reduced
The risk of pathogenic microorganism diffusion；It is efficient to the elimination of pathogenic microorganism using chemical mode exterminating bacterium in the present invention, effect
Fruit is good.
The technical solution adopted by the present invention is as follows：
A kind of processing method of medical waste water, includes the following steps：
Step 1：Medical waste water is collected, is carried out disinfection with chemosterilant to it processing；
Step 2：Primary filter processing is carried out to medical waste water to remove large granular impurity therein；
Step 3：Adjust the pH to 6.5-8 of medical waste water；
Step 4：Anaerobic-aerobic treatment is carried out to medical waste water；
Step 5：Flocculation sediment processing is carried out to medical waste water；Completely after precipitation, medical waste water qualified discharge, after precipitation is collected
Centralized processing.
A kind of processing method of medical waste water of the present invention in step 1, disinfects medical waste water and dioxy can be used
Change chlorination method, ozone disinfection, any one in potassium hydrogen peroxymonosulfate sterilization；The time disinfected is 4-8h.
By adopting the above-described technical solution, the processing that carries out disinfection first to medical waste water, avoids the disease in medical waste water
With processing procedure, the medical waste water of diffusion couple next batch in follow up device causes secondary pollution to pathogenic microorganism, and reduces cause of disease
The risk of spreading.It is carried out disinfection by the way of chemistry, indigenous microorganisms and its spore, virus, mould, water can be eliminated
Algae and biomembrane, Disinfection Effect is good, is particularly suitable for the disinfection of medical waste water part.
A kind of processing method of medical waste water of the present invention in step 2, removes large granular impurity by the way of grid,
The grid gap is 0.05-0.08cm.
By adopting the above-described technical solution, removing large granular impurity, the processing load of subsequent treatment process can be mitigated,
And protect processing equipment.
A kind of processing method of medical waste water of the present invention, in the anaerobic-aerobic treatment, Anaerobic Treatment and Aerobic Process for Treatment
It separately carries out, first carries out Anaerobic Treatment, then carry out Aerobic Process for Treatment；During anaerobic-aerobic treatment, it is 37-45 DEG C to keep temperature, anaerobism
Processing time is 12-24h, and the Aerobic Process for Treatment time is 8-16h.
In above-mentioned technical proposal, Anaerobic Treatment uses anaerobe such as denitrifying bacteria, and Aerobic Process for Treatment is using aerobic micro-
Biology, such as nitrobacteria and polyP bacteria.In Anaerobic Treatment, microorganism is given birth under strict anaerobic conditions, by partial organic substances by solution
Into H2、CO2、H2S and CH4Wait gases.In Aerobic Process for Treatment, under oxygen existence condition, aerobic microbiological passes through catabolism, synthesis generation
It thanks and mineralizes with substance, oxidation operation is being resolved into CO2And H2O etc..By adopting the above-described technical solution, medical waste water
In organic matter be broken down into small molecule, can effectively remove C, N, P, S more than needed therein etc., avoid its eutrophication.
During Aerobic Process for Treatment, oxygen is passed through with the ventilation ratio of 1-2%vvm for a kind of processing method of medical waste water of the present invention.
By adopting the above-described technical solution, Aerobic can be effectively facilitated.
A kind of processing method of medical waste water of the present invention in step 5, is gathered using amylopectin-Polyacrylamide Grafted
It closes object and flocculation sediment is carried out to medical waste water, the time of flocculation sediment is 12-24h.
A kind of processing method of medical waste water of the present invention, the amylopectin-Polyacrylamide Grafted polymer pass through
It is prepared by following steps：
Step A：Amylopectin is dissolved to the solution that 0.1-0.2g/mL is made in water water, according to the matter of cerous nitrate and amylopectin
Amount is than being 3-4:50 ratio adds in the saturated solution of cerous nitrate into extract solution；400r-600r/min, 45-55 DEG C of items
Heating water bath 5-10min under part；
Step B：Polyacrylamide amine monomers are added in into reaction vessel, keep reaction condition the reaction was continued 2-4h；Cooling filters, and takes
Precipitation；
Step C：Precipitation is washed through absolute ethyl alcohol, is then dissolved completely in acetone, homopolymer is removed with apparatus,Soxhlet's, after dry
Obtain flocculant.
By adopting the above-described technical solution, compared with using simple polyacrylamide as flocculant, chain starch-poly-
The particle increase of acrylamide graft polymer flocculants, sinking speed are accelerated.And chain starch-Polyacrylamide Grafted polymerization
Object surface has apparatus derivatorius, can capture multiple suspended particles from different directions, to obtain larger floccule body, promote its wadding
It is solidifying, so as to effectively reduce the suspended matter and COD of medical waste water.
A kind of processing method of medical waste water of the present invention, medical waste water is after precipitation process, using filter screen filtration
After discharge, the aperture of filter screen is 25-50nm.
By adopting the above-described technical solution, the suspended matter not being flocculated by filter screen retention, further improves medical treatment
The treatment effect of waste water.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
（1）First carry out disinfection to medical waste water processing, avoids the pathogenic microorganism in medical waste water with processing procedure follow-up
The medical waste water of diffusion couple next batch causes secondary pollution in device, and reduces the risk of pathogenic microorganism diffusion.
（2）It is carried out disinfection by the way of chemistry, indigenous microorganisms and its spore, virus, mould, algae and life can be eliminated
Object film, Disinfection Effect is good, is particularly suitable for the disinfection of medical waste water part.
（3）It is flocculated using new flocculant to medical waste water, the particle increase of flocculant, sinking speed is accelerated；
Multiple suspended particles can be captured from different directions, to obtain larger floccule body, promote its flocculation, so as to effectively reduce medical treatment
The suspended matter and COD of waste water.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.I.e., unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
Embodiment 1
The present embodiment provides a kind of processing method of medical waste water, this method first carries out disinfection to medical waste water processing, avoids
The medical waste water of the further diffusion couple next batch of pathogenic microorganism causes secondary pollution.Medical waste water provided in this embodiment
Processing method include the following steps：
Step 1：Medical waste water is collected, by chlorine dioxide with being 1 according to the volume ratio of medical waste water:The ratio of 20-40 is useless to medical treatment
Chlorine dioxide is passed through in water, after stirring, sterilizes 4-8h.
Step 2：It handles to remove big therein by filter is treated with grid by the medical waste water disinfected
Grain impurity, the gap of grid is 0.05-0.08cm.After primary filter, medical waste water flows into soda acid pond, after large granular impurity is collected
Centralized processing.
Step 3：Go out to be provided with pH detectors in soda acid pond, according to the pH detected, the pH of medical waste water is adjusted
To its pH in the range of 6.5-8.When detecting that pH is less than 6.5, optional pH adjusting agent has white lime water, sodium carbonate liquor
Deng；When the pH detected is higher than 8, common pH adjusting agent is technique hydrochloric acid.After pH is adjusted, medical waste water enters anaerobism-good
Oxygen processing routine.
Step 4：Medical waste water after adjusted pH carries out Anaerobic Treatment first, strictly anaerobic during Anaerobic Treatment, and anaerobism is micro-
Biology selects anti-bacterial digestion, and Anaerobic Treatment continues 12-24h.Aerobic Process for Treatment is carried out after Anaerobic Treatment, Aerobic Process for Treatment is in aerobic item
It is carried out under part, Aerobic Process for Treatment microorganism selects bacterial digestion, and Aerobic Process for Treatment continues 8-16h.After Aerobic Process for Treatment, medical waste water
Into flocculation sediment program.
Step 5：In flocculation sediment program, flocculation sediment is carried out to the suspended matter in medical waste water using flocculant, with drop
Suspended matter in low medical waste water, so as to reduce its COD.Flocculant of the prior art, such as polyacrylamide can be used in flocculant,
The flocculation sediment time is advisable for 8-16h.After flocculation sediment, medical waste water qualified discharge, precipitation collection processing.
Embodiment 2
The present embodiment provides a kind of processing method of medical waste water, this method first carries out disinfection to medical waste water processing, avoids
The medical waste water of the further diffusion couple next batch of pathogenic microorganism causes secondary pollution.Medical waste water provided in this embodiment
Processing method include the following steps：
Step 1：Medical waste water is collected, by ozone with being 1 according to the volume ratio of medical waste water:The ratio of 10-30 is into medical waste water
Ozone is passed through, after stirring, sterilizes 4-8h.
Step 2：It handles to remove big therein by filter is treated with grid by the medical waste water disinfected
Grain impurity, the gap of grid is 0.05-0.08cm.After primary filter, medical waste water flows into soda acid pond, after large granular impurity is collected
Centralized processing.
Step 3：Go out to be provided with pH detectors in soda acid pond, according to the pH detected, the pH of medical waste water is adjusted
To its pH in the range of 6.5-8.When detecting that pH is less than 6.5, optional pH adjusting agent has white lime water, sodium carbonate liquor
Deng；When the pH detected is higher than 8, common pH adjusting agent is technique hydrochloric acid.After pH is adjusted, medical waste water enters anaerobism-good
Oxygen processing routine.
Step 4：Medical waste water after adjusted pH carries out Anaerobic Treatment first, strictly anaerobic during Anaerobic Treatment, and anaerobism is micro-
Biology selects anti-bacterial digestion, and Anaerobic Treatment continues 12-24h.Aerobic Process for Treatment is carried out after Anaerobic Treatment, Aerobic Process for Treatment is in aerobic item
It is carried out under part, Aerobic Process for Treatment microorganism selects polyP bacteria, and Aerobic Process for Treatment continues 8-16h, in Aerobic, with 1-2%vvm
Ventilation ratio be passed through oxygen.After Aerobic Process for Treatment, medical waste water enters flocculation sediment program.
Step 5：In flocculation sediment program, flocculation sediment is carried out to the suspended matter in medical waste water using flocculant, with drop
Suspended matter in low medical waste water, so as to reduce its COD.Flocculant of the prior art, such as polyacrylamide can be used in flocculant,
The flocculation sediment time is advisable for 8-16h.
Step 6：After flocculation sediment, medical waste water passes through filter screen filtration, and the aperture of filter screen is 25-50nm, after filtering
Medical waste water qualified discharge, by strainer retention impurity with precipitation collection processing.
Embodiment 3
The present embodiment provides a kind of processing method of medical waste water, this method first carries out disinfection to medical waste water processing, avoids
The medical waste water of the further diffusion couple next batch of pathogenic microorganism causes secondary pollution.Medical waste water provided in this embodiment
Processing method include the following steps：
Step 1：Medical waste water is collected, by potassium hydrogen peroxymonosulfate with being 30-60 according to the mass volume ratio of medical waste water:1（g：L）
Ratio add in potassium hydrogen peroxymonosulfate into medical waste water, after stirring, sterilize 4-8h.
Step 2：It handles to remove big therein by filter is treated with grid by the medical waste water disinfected
Grain impurity, the gap of grid is 0.05-0.08cm.After primary filter, medical waste water flows into soda acid pond, after large granular impurity is collected
Centralized processing.
Step 3：Go out to be provided with pH detectors in soda acid pond, according to the pH detected, the pH of medical waste water is adjusted
To its pH in the range of 6.5-8.When detecting that pH is less than 6.5, optional pH adjusting agent has white lime water, sodium carbonate liquor
Deng；When the pH detected is higher than 8, common pH adjusting agent is technique hydrochloric acid.After pH is adjusted, medical waste water enters anaerobism-good
Oxygen processing routine.
Step 4：Medical waste water after adjusted pH carries out Anaerobic Treatment first, strictly anaerobic during Anaerobic Treatment, and anaerobism is micro-
Biology selects anti-bacterial digestion, and Anaerobic Treatment continues 12-24h.Aerobic Process for Treatment is carried out after Anaerobic Treatment, Aerobic Process for Treatment is in aerobic item
It is carried out under part, Aerobic Process for Treatment microorganism selects nitrobacteria, and Aerobic Process for Treatment continues 8-16h, in Aerobic, with 1-2%
The ventilation ratio of vvm is passed through oxygen.After Aerobic Process for Treatment, medical waste water enters flocculation sediment program.
Step 5：In flocculation sediment program, flocculation sediment is carried out to the suspended matter in medical waste water using flocculant, with drop
Suspended matter in low medical waste water, so as to reduce its COD.Flocculant uses amylopectin-Polyacrylamide Grafted polymer, flocculation
Sedimentation time is advisable for 8-12h.
Step 6：After flocculation sediment, medical waste water passes through filter screen filtration, and the aperture of filter screen is 25-50nm, after filtering
Medical waste water qualified discharge, by strainer retention impurity with precipitation collection processing.
Embodiment 4
The present embodiment provides a kind of new sewage flocculant, i.e., flocculant used in embodiment 3.The flocculant forms sediment for branch
Powder-Polyacrylamide Grafted polymer, the flocculant particle is big, and sinking speed is fast, has branch, can capture from different directions
Multiple suspended particles, to obtain larger floccule body, so as to effectively reduce the COD of medical waste water.The sewage flocculant passes through such as
Lower step is prepared：
Step 1：Amylopectin is dispersed in water to the amylopectin solution to form 0.1-0.2g/mL.According to cerous nitrate and branch
The mass ratio of starch is 3-4:50 ratio weighs cerous nitrate, and is dissolved in the water and to form saturated solution, to amylopectin solution
The middle saturated solution for adding in cerous nitrate；Heating water bath 5-10min under the conditions of 400-600r/min, 45-55 DEG C.
Step 2：It is 2 according to the mass ratio of acrylamide and amylopectin:3-5 weighs acrylamide, and is scattered in
It in water, dissolves by heating, is at the uniform velocity added in while hot with the rate of 1-2mL/min in amylopectin solution, reaction condition is kept to continue anti-
Answer 2-4h.
Step 3：After reaction solution is cooled to room temperature, suction filtration takes filter residue.Filter residue is washed twice through absolute ethyl alcohol, is used every time
Amount is substantially identical with filter residue volume, after ethyl alcohol volatilization, is dissolved completely in acetone, and homopolymerization is removed with apparatus,Soxhlet's
Object obtains flocculant after dry at 50-70 DEG C.
The invention is not limited in foregoing specific embodiments.The present invention, which expands to, any in the present specification to be disclosed
The step of new feature or any new combination and any new method or process disclosed or any new combination.
Claims (8)
1. a kind of processing method of medical waste water, which is characterized in that it includes the following steps：
Step 1：Medical waste water is collected, is carried out disinfection with chemosterilant to it processing；
Step 2：Primary filter processing is carried out to medical waste water to remove large granular impurity therein；
Step 3：Adjust the pH to 6.5-8 of medical waste water；
Step 4：Anaerobic-aerobic treatment is carried out to medical waste water；
Step 5：Flocculation sediment processing is carried out to medical waste water；Completely after precipitation, medical waste water qualified discharge, after precipitation is collected
Centralized processing.
2. the processing method of medical waste water according to claim 1, which is characterized in that in step 1, disappear to medical waste water
Poison, which is handled, can be used disinfection by chlorine dioxide method, ozone disinfection, any one in potassium hydrogen peroxymonosulfate sterilization；It disinfects
Time be 4-8h.
3. the processing method of medical waste water according to claim 1, which is characterized in that in step 2, using the side of grid
Formula removes large granular impurity, and the grid gap is 0.05-0.08cm.
4. the processing method of medical waste water according to claim 1, which is characterized in that in the anaerobic-aerobic treatment, detest
Oxygen processing and Aerobic Process for Treatment separately carry out, and first carry out Anaerobic Treatment, then carry out Aerobic Process for Treatment；During anaerobic-aerobic treatment, temperature is kept
It spends for 37-45 DEG C, the Anaerobic Treatment time is 12-24h, and the Aerobic Process for Treatment time is 8-16h.
5. the processing method of medical waste water according to claim 4, which is characterized in that during Aerobic Process for Treatment, with 1-2%vvm's
Ventilation ratio is passed through oxygen.
6. the processing method of medical waste water according to claim 1, which is characterized in that in step 5, using amylopectin-
Polyacrylamide Grafted polymer carries out medical waste water flocculation sediment, and the time of flocculation sediment is 12-24h.
7. the processing method of medical waste water according to claim 6, which is characterized in that the amylopectin-polyacrylamide
Amine graft polymers is made by the steps：
Step A：Amylopectin is dissolved to the solution that 0.1-0.2g/mL is made in water water, according to the matter of cerous nitrate and amylopectin
Amount is than being 3-4:50 ratio adds in the saturated solution of cerous nitrate into extract solution；400r-600r/min, 45-55 DEG C of items
Heating water bath 5-10min under part；
Step B：Polyacrylamide amine monomers are added in into reaction vessel, keep reaction condition the reaction was continued 2-4h；Cooling filters, and takes
Precipitation；
Step C：Precipitation is washed through absolute ethyl alcohol, is then dissolved completely in acetone, homopolymer is removed with apparatus,Soxhlet's, after dry
Obtain flocculant.
8. the processing method of medical waste water according to claim 7, which is characterized in that medical waste water after precipitation process,
Using being discharged after filter screen filtration, the aperture of filter screen is 25-50nm.
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| CN201711325306.4A CN108046521A (en) | 2017-12-13 | 2017-12-13 | A kind of processing method of medical waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592171A (en) * | 2019-08-29 | 2020-08-28 | 沙同叶 | Method and treatment system for purifying high-residue waste liquid |
| CN111995171A (en) * | 2020-07-10 | 2020-11-27 | 广西夏阳环保科技有限公司 | Composite treatment agent for medical wastewater and treatment method thereof |
| CN115974345A (en) * | 2023-03-20 | 2023-04-18 | 曹县人民医院 | Hospital sewage treatment system based on biological contact oxidation method |
-
2017
- 2017-12-13 CN CN201711325306.4A patent/CN108046521A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592171A (en) * | 2019-08-29 | 2020-08-28 | 沙同叶 | Method and treatment system for purifying high-residue waste liquid |
| CN111995171A (en) * | 2020-07-10 | 2020-11-27 | 广西夏阳环保科技有限公司 | Composite treatment agent for medical wastewater and treatment method thereof |
| CN115974345A (en) * | 2023-03-20 | 2023-04-18 | 曹县人民医院 | Hospital sewage treatment system based on biological contact oxidation method |
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