CN104787959A - Hospital wastewater treatment system and treatment method - Google Patents
Hospital wastewater treatment system and treatment method Download PDFInfo
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- CN104787959A CN104787959A CN201410027062.1A CN201410027062A CN104787959A CN 104787959 A CN104787959 A CN 104787959A CN 201410027062 A CN201410027062 A CN 201410027062A CN 104787959 A CN104787959 A CN 104787959A
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Abstract
The invention belongs to the technical field of waste water treatment, and specifically relates to a hospital wastewater treatment system, and a wastewater treatment method. The hospital wastewater treatment system comprises a septic tank, a grid tank, an adjusting tank, a hydrolysis acidification pool, a contact oxidation pool, settling pond, a disinfection tank, and a dechlorination pool which are connected successively; the hydrolysis acidification pool and the contact oxidation pool are connected with an air blower; a reflux pump is arranged between the hydrolysis acidification pool and the contact oxidation pool; the bottom of the settling pond is provided with a sludge pump; the sludge pump is communicated with a sludge thickening tank; the disinfection tank is connected with a chlorine dioxide generator; a mixer is arranged between the disinfection tank and the chlorine dioxide generator; the mixer is used for full mixing of chlorine dioxide with water; the bottom of the adjusting tank is provided with a lift pump; and the hydrolysis acidification pool and the contact oxidation pool are filled with a composite biological filling material. Process flow of the wastewater treatment method is simple; arrangement is compact; operation is flexible; treatment effect is excellent; cost is reduced, and at the same time, effective deep comprehensive treatment of hospital wastewater can be realized.
Description
Technical field
The present invention relates to technical field of sewage, specifically a kind of hospital sewage disposal system and treatment process.
Background technology
The water quality characteristics of hospital sewage is containing a large amount of pathogenic agent-germs, virus and parasitic ovum.As tuberculosis hospital's sewage, often liter can detect tubercule bacillus hundreds of thousands of to millions of.Hospital sewage is also containing number of chemical materials such as sterilizing agent, medicament, reagent.Utilize the sewage of the hospital of radio isotope medical procedure also containing radioactive substance.The factors such as the weather of the water yield of hospital sewage and the character of hospital, scale and location are relevant, are generally every day 200 ~ 1000 liters by often opening sick bed.
The process of the radioactive dirty water that hospital discharges conventional storage damped method.The conventional radio isotope of hospital as 131 iodine, 32 phosphorus, 198 gold medals, 24 sodium etc. are transformation period shorter isotropic substances, therefore radioactive dirty water can be stored in special decay pond, underground, period of storage be 10 times to the transformation period, radioactive concentration is dropped to the degree of permissible discharge.If the concentration of radioactive dirty water is very low, the water yield is very little, also can use dilution method process." the radioactivity protection regulation " of China requires that each microcurie radio isotope reaches permissible discharge concentration and need dilute the water yield 1.67 meter 3.When radioactive dirty water is dense, radioactive transformation period is very long, and when should not use storage method and dilution method process, available method of evaporation, ion exchange method or coagulating sedimentation carry out separation concentration (see radioactive dirty water process).
The mud of discharging in Hospital Sewage Treatment process by often opening sick bed, every day average out to 0.7 ~ 1 liter, moisture 95%, containing 70 ~ 80% of pathogenic agent total amount in sewage, must disinfection.Sterilization method has the sterilization of thermal sterilization, chemical agent, gamma-rays sterilization etc.The thermal source of thermal sterilization is generally steam, electric energy or bioenergy (During High-Temperature Composting), and sun power can be used in some areas, or with burning method process (see sludge incineration).Chemical agent is sterilized available chlorinated lime, lime, ammoniacal liquor, liquid chlorine or caustic soda etc., and during with chlorinated lime or liquid chlorine, available chlorine consumption is about 2.5% of sludge quantity.When using basic agent, after the pH value of mud reaches 12, keep half an hour more than, effect is best.The mixture of gamma-rays available 60 cobalts of sterilization or some fission products makes source of radiation, and radiation dose is 20 ~ 300,000 roentgens.By this method, foul smell is not produced to sludge disinfection, and dehydration and the settleability of mud can be improved, but costly.There is the method utilizing ozonization in addition, although this method can be bacterium, virus protein deactivation, the later water of sterilization does not have and presses down sterilization effect, is easy to occur secondary pollution, and utilize ozonization cost high, cannot extensively utilize.
Summary of the invention
The object of the invention is, for above-mentioned technology Problems existing, to provide a kind of hospital sewage disposal system and treatment process, can carry out effective comprehensive treating process to hospital sewage, the sewage effluent quality of process is more stable, and cost is cheaper.
For achieving the above object, the technical solution used in the present invention is: a kind of hospital sewage disposal system, comprise the septic tank connected successively, grating tank, equalizing tank, hydrolysis acidification pool, contact-oxidation pool, settling tank, sterilization pool and dechlorination pond, described hydrolysis acidification pool and contact-oxidation pool are connected to gas blower, reflux pump is provided with between described hydrolysis acidification pool and contact-oxidation pool, sludge pump is provided with bottom described settling tank, described sludge pump is communicated with sludge thickener, described sterilization pool is connected with chlorine dioxide generator, vortex mixer is provided with between described sterilization pool and dioxide peroxide, vortex mixer is used for dioxide peroxide and fully mixes with water, lift pump is provided with bottom described equalizing tank, combination biologic packing material is provided with in described hydrolysis acidification pool and contact-oxidation pool,
Hospital's sanitary sewage enters septic tank, through the laggard grating tank of septic tank process, remove after large suspended substance through grid and enter equalizing tank, equalizing tank sewage delivers to hydrolysis acidification pool by lift pump, by acidication effect, macromolecular substance is decomposed into small molecules, sewage is through the laggard contact-oxidation pool of hydrolysis acidification pool, by being attached to the absorption of the biology on filler, oxygenizement, organic pollutant in sewage is progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified, be arranged at the mixed-liquor return pump between hydrolysis acidification pool and contact-oxidation pool, by contact-oxidation pool sewage backflow to hydrolysis acidification pool, realize thorough denitrogenation, ensure that effluent quality NH3-N is up to standard, contact-oxidation pool water outlet adds flocculation agent reaction and produces the laggard settling tank of alumen ustum, carry out mud-water separation, settling tank water outlet enters sterilization pool, pass into dioxide peroxide in sterilization pool and mixed by vortex mixer, after disinfection, discharge finally by after dechlorination, mud enters sludge thickener redeposition by sludge pump, then by landfill after water-break, drying and other treatment.
Further: to be provided with vertical baffle in described equalizing tank, described vertical baffle is connected with equalizing tank, the other side leaves passage; Another block dividing plate adjacent with vertical baffle is then connected with the other side of equalizing tank, while leave passage; All the other vertical clapboards set gradually along the water inlet pipe of equalizing tank to the horizontal direction of rising pipe then one end and equalizing tank leave passage, and all the other limits are connected with equalizing tank, and this part vertical baffle is crisscross arranged, and make the water stream channel forming rectangle waves in equalizing tank.
Further: the tracheae that described gas blower enters hydrolysis acidification pool is provided with valve.
In the present invention, large suspended substance is removed in the effect of grating tank; The effect of equalizing tank collects sewage, regulating pondage; The effect of hydrolysis acidification pool is in anaerobic environment, and nitrite nitrogen, nitrate nitrogen are reduced into gaseous nitrogen (N2) by denitrifying bacteria, realize denitrogenation; The effect of contact-oxidation pool is in the environment of aerobic, and in sewage and pond, microorganism forms microorganism biological circle, utilizes microorganism to the biological degradation of pond body sewage, removes the organic matter in sewage; The effect of settling tank carries out mud-water separation to contact-oxidation pool water outlet; The effect of sterilization pool carries out disinfection to water outlet; The effect in dechlorination pond reduces sterilization pool water outlet chlorine residue; The effect of sludge thickener is thickened sludge.
Another object of the present invention is to provide a kind of Hospital Sewage Treatment method, comprises the steps:
(1) hospital's sanitary sewage evolution manure pit, through the laggard grating tank of septic tank process, removes after large suspended substance through grid and enters equalizing tank, and grid excess goes to clinical waste garbage pool in station;
(2) sewage enters equalizing tank after grating tank, and equalizing tank sewage delivers to hydrolysis acidification pool by lift pump, by acidication effect, macromolecular substance is decomposed into small molecules, improves biochemical sewage effect, alleviates contact-oxidation pool processing load;
(3) sewage is through the laggard contact-oxidation pool of hydrolysis acidification pool, by being attached to the effect such as absorption, oxidation of the biology on filler, organic pollutant in sewage is progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified, be arranged at the mixed-liquor return pump between hydrolysis acidification pool and contact-oxidation pool, by contact-oxidation pool sewage backflow to hydrolysis acidification pool, realize denitrogenation object;
(4) contact-oxidation pool water outlet adds the laggard settling tank of flocculation agent reaction production alumen ustum, carry out mud-water separation, settling tank water outlet enters sterilization pool, passes into dioxide peroxide and mixed by vortex mixer in sterilization pool, after disinfection, discharge finally by after dechlorination;
(5) in settling tank carry out mud-water separation after, after mud is delivered to sludge thickener redeposition by sludge pump, supernatant returns hydrolysis acidification pool circular treatment again; Mud later carries out landfill disposal through dehydration, mummification.
Dioxide peroxide is confirmed as one strong fungicide (disinfection by chlorine dioxide sterilizing ability is about 2.6 times of chlorine) safely and efficiently by the World Health Organization, it is to the pathogenic micro-organism of water-borne transmission, and comprising the heterotrophic bacterium in the extremely strong virus of resistance to chlorine, gemma and water circuit system, sulphate reducing bacteria and fungi etc. all has good sterilisation effect.The sterilization speed of dioxide peroxide is fast, as long as several minutes just can make sterilizing rate reach more than 99%, dioxide peroxide can also react with the partial organic substances in sewage, reduces the stink of sewage, and not easily generates the carcinogenic substances such as CHCl3.The chlorine dioxide residual amount formed after sterilization can prevent the breeding once again of bacterium.
Advantageous Effects of the present invention is: hospital sewage is after septic tank, grating tank, equalizing tank, hydrolysis acidification pool, contact-oxidation pool process, mud-water separation is carried out through settling tank, mud enters sludge thickener, sewage can kill bacterium and virus protein substantially through Chloride Dioxide Disinfection Technology process again, the effect of vortex mixer is conducive to dioxide peroxide and fully mixes with sewage, ensures the sterilization result of dioxide peroxide; Present invention process flow process is simple, characteristics of compact layout, flexible operation, treatment effect are good, can, under cost-saving condition, realize carrying out effective degree of depth comprehensive treating process to hospital sewage.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is equipment connection schematic diagram of the present invention;
Fig. 2 is the structural representation of equalizing tank.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of hospital sewage disposal system as shown in Figure 1, comprise the septic tank 1 connected successively, grating tank 2, equalizing tank 3, hydrolysis acidification pool 4, contact-oxidation pool 5, settling tank 6, sterilization pool 7 and dechlorination pond 8, described hydrolysis acidification pool 4 and contact-oxidation pool 5 are connected to gas blower 9, reflux pump 10 is provided with between described hydrolysis acidification pool 4 and contact-oxidation pool 5, sludge pump 11 is provided with bottom described settling tank 6, described sludge pump 11 is communicated with sludge thickener 12, described sterilization pool 7 is connected with chlorine dioxide generator 13, vortex mixer 14 is provided with between described sterilization pool 7 and dioxide peroxide 13, vortex mixer 14 fully mixes with water for dioxide peroxide, lift pump 15 is provided with bottom described equalizing tank 3, combination biologic packing material is provided with in described hydrolysis acidification pool 4 and contact-oxidation pool 5,
Hospital's sanitary sewage enters septic tank 1, laggard grating tank 2 is processed through septic tank 1, remove after large suspended substance through grid and enter equalizing tank 3, equalizing tank 3 sewage delivers to hydrolysis acidification pool 4 by lift pump 15, by acidication effect, macromolecular substance is decomposed into small molecules, sewage is through the laggard contact-oxidation pool 5 of hydrolysis acidification pool 4, by being attached to the absorption of the biology on filler, oxygenizement, organic pollutant in sewage is progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified, be arranged at the mixed-liquor return pump between hydrolysis acidification pool 4 and contact-oxidation pool 5, by contact-oxidation pool 5 sewage backflow to hydrolysis acidification pool, realize thorough denitrogenation, ensure that effluent quality NH3-N is up to standard, contact-oxidation pool 5 water outlet adds flocculation agent reaction and produces the laggard settling tank 6 of alumen ustum, carry out mud-water separation, settling tank 6 water outlet enters sterilization pool 7, pass into dioxide peroxide in sterilization pool 7 and mixed by vortex mixer 14, after disinfection, discharge finally by after dechlorination, mud enters sludge thickener redeposition by sludge pump 11, then by landfill after water-break, drying and other treatment.
As shown in Figure 2, in equalizing tank 3, be provided with vertical baffle 31, described vertical baffle 31 is connected with equalizing tank 3, the other side leaves passage; Another block dividing plate 31 item adjacent with vertical baffle is connected with the other side of equalizing tank 3, while leave passage; All the other vertical clapboards 31 one end set gradually along the water inlet pipe of equalizing tank 3 to the horizontal direction of rising pipe and equalizing tank 3 leave passage, all the other limits are connected with equalizing tank 3, and this part vertical baffle 31 is crisscross arranged, make the water stream channel forming rectangle waves in equalizing tank 3.
Wherein, the tracheae that gas blower 9 enters hydrolysis acidification pool 4 is provided with valve, and regularly can open valve and ventilate in hydrolysis acidification pool 4, avoiding a large amount of magazine to be deposited on combined biofilter material affects processing efficiency.
Utilize the method for said system process hospital sewage, comprise the steps:
(1) hospital's sanitary sewage evolution manure pit, through the laggard grating tank of septic tank process, removes after large suspended substance through grid and enters equalizing tank, and grid excess goes to clinical waste garbage pool in station;
(2) sewage enters equalizing tank after grating tank, and equalizing tank sewage delivers to hydrolysis acidification pool by lift pump, by acidication effect, macromolecular substance is decomposed into small molecules, improves biochemical sewage effect, alleviates contact-oxidation pool processing load;
(3) sewage is through the laggard contact-oxidation pool of hydrolysis acidification pool, by being attached to the effect such as absorption, oxidation of the biology on filler, the organic pollutant in sewage being progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified; Be arranged at the mixed-liquor return pump between hydrolysis acidification pool and contact-oxidation pool, by contact-oxidation pool sewage backflow to hydrolysis acidification pool, realize denitrogenation object;
(4) contact-oxidation pool water outlet adds the laggard settling tank of flocculation agent reaction production alumen ustum, carry out mud-water separation, settling tank water outlet enters sterilization pool, passes into dioxide peroxide and mixed by vortex mixer in sterilization pool, after disinfection, discharge finally by after dechlorination;
(5) in settling tank carry out mud-water separation after, after mud is delivered to sludge thickener redeposition by sludge pump, supernatant returns hydrolysis acidification pool circular treatment again; Mud later carries out landfill disposal through dehydration, mummification.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. hospital sewage disposal system, it is characterized in that, comprise the septic tank (1) connected successively, grating tank (2), equalizing tank (3), hydrolysis acidification pool (4), contact-oxidation pool (5), settling tank (6), sterilization pool (7) and dechlorination pond (8), described hydrolysis acidification pool (4) and contact-oxidation pool (5) are connected to gas blower (9), reflux pump (10) is provided with between described hydrolysis acidification pool (4) and contact-oxidation pool (5), described settling tank (6) bottom is provided with sludge pump (11), described sludge pump (11) is communicated with sludge thickener (12), described sterilization pool (7) is connected with chlorine dioxide generator (13), vortex mixer (14) is provided with between described sterilization pool (7) and dioxide peroxide (13), vortex mixer (14) fully mixes with water for dioxide peroxide, described equalizing tank (3) bottom is provided with lift pump (15), combination biologic packing material is provided with in described hydrolysis acidification pool (4) and contact-oxidation pool (5),
Hospital's sanitary sewage enters septic tank (1), laggard grating tank (2) is processed through septic tank (1), remove after large suspended substance through grid and enter equalizing tank (3), equalizing tank (3) sewage delivers to hydrolysis acidification pool (4) by lift pump (15), by acidication effect, macromolecular substance is decomposed into small molecules, sewage is through hydrolysis acidification pool (4) laggard contact-oxidation pool (5), by being attached to the absorption of the biology on filler, oxygenizement, organic pollutant in sewage is progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified, be arranged at the mixed-liquor return pump between hydrolysis acidification pool (4) and contact-oxidation pool (5), by contact-oxidation pool (5) sewage backflow to hydrolysis acidification pool, realize thorough denitrogenation, ensure that effluent quality NH3-N is up to standard, contact-oxidation pool (5) water outlet adds flocculation agent reaction and produces the laggard settling tank of alumen ustum (6), carry out mud-water separation, settling tank (6) water outlet enters sterilization pool (7), pass into dioxide peroxide in sterilization pool (7) and mixed by vortex mixer (14), after disinfection, discharge finally by after dechlorination, mud enters sludge thickener redeposition by sludge pump (11), then by landfill after water-break, drying and other treatment.
2. hospital sewage disposal system according to claim 1, is characterized in that: be provided with vertical baffle (31) in described equalizing tank (3), described vertical baffle (31) is connected with equalizing tank (3), the other side leaves passage; Another block dividing plate (31) adjacent with vertical baffle is then connected with the other side of equalizing tank (3), while leave passage; Then one end and equalizing tank (3) leave passage to all the other vertical clapboards (31) set gradually along the water inlet pipe of equalizing tank (3) to the horizontal direction of rising pipe, all the other limits are connected with equalizing tank (3), and this part vertical baffle (31) is crisscross arranged, make the water stream channel forming rectangle waves in equalizing tank (3).
3. hospital sewage disposal system according to claim 1, is characterized in that: the tracheae that described gas blower (9) enters hydrolysis acidification pool (4) is provided with valve.
4. Hospital Sewage Treatment method, is characterized in that, comprises the steps:
(1) hospital's sanitary sewage evolution manure pit, through the laggard grating tank of septic tank process, removes after large suspended substance through grid and enters equalizing tank, and grid excess goes to clinical waste garbage pool in station;
(2) sewage enters equalizing tank after grating tank, and equalizing tank sewage delivers to hydrolysis acidification pool by lift pump, by acidication effect, macromolecular substance is decomposed into small molecules, improves biochemical sewage effect, alleviates contact-oxidation pool processing load;
(3) sewage is through the laggard contact-oxidation pool of hydrolysis acidification pool, by being attached to the effect such as absorption, oxidation of the biology on filler, organic pollutant in sewage is progressively oxidized to dioxide peroxide, water or synthetic cell material, sewage is purified, be arranged at the mixed-liquor return pump between hydrolysis acidification pool and contact-oxidation pool, by contact-oxidation pool sewage backflow to hydrolysis acidification pool, realize denitrogenation object;
(4) contact-oxidation pool water outlet adds the laggard settling tank of flocculation agent reaction production alumen ustum, carry out mud-water separation, settling tank water outlet enters sterilization pool, passes into dioxide peroxide and mixed by vortex mixer in sterilization pool, after disinfection, discharge finally by after dechlorination;
(5) in settling tank carry out mud-water separation after, after mud is delivered to sludge thickener redeposition by sludge pump, supernatant returns hydrolysis acidification pool circular treatment again; Mud later carries out landfill disposal through dehydration, mummification.
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Cited By (13)
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| CN107089766A (en) * | 2017-05-07 | 2017-08-25 | 陕西碧诺环保科技有限公司 | A kind of efficient hospital sewage processing process |
| CN107140784A (en) * | 2017-04-28 | 2017-09-08 | 皖西学院 | A kind of medical sewage multisection type water treatment system and processing method |
| CN107720941A (en) * | 2017-12-11 | 2018-02-23 | 重庆丰望环保科技有限公司 | A kind of sewage disposal system with sterilizing function |
| CN108046530A (en) * | 2017-12-21 | 2018-05-18 | 重庆丰望环保科技有限公司 | A kind of medical waste water processing system that new contact-oxidation pool is set |
| CN109205892A (en) * | 2018-11-21 | 2019-01-15 | 山东海普欧环保设备科技有限公司 | A kind of medical treatment wastewater processing technique |
| CN109437469A (en) * | 2018-06-07 | 2019-03-08 | 四川旭昊德环保设备有限公司 | A kind of purifying domestic sewage method |
| CN109650670A (en) * | 2019-01-25 | 2019-04-19 | 广州故乡源水处理有限公司 | The purification method of septic tank purification system |
| CN109809591A (en) * | 2019-02-19 | 2019-05-28 | 深圳市建筑设计研究总院有限公司 | Modular Hospital Sewage Treatment station |
| CN110407409A (en) * | 2019-07-25 | 2019-11-05 | 湖南泰瑞医疗科技有限公司 | A kind of medical waste water processing unit |
| 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 |
| CN111908705A (en) * | 2020-06-18 | 2020-11-10 | 北京绿都浩天环保科技有限公司 | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment |
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| CN113620535A (en) * | 2021-08-25 | 2021-11-09 | 产学研(广州)环境服务有限公司 | Composite medical wastewater treatment system and method |
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| CN107140784A (en) * | 2017-04-28 | 2017-09-08 | 皖西学院 | A kind of medical sewage multisection type water treatment system and processing method |
| CN107089766A (en) * | 2017-05-07 | 2017-08-25 | 陕西碧诺环保科技有限公司 | A kind of efficient hospital sewage processing process |
| CN107720941A (en) * | 2017-12-11 | 2018-02-23 | 重庆丰望环保科技有限公司 | A kind of sewage disposal system with sterilizing function |
| CN108046530A (en) * | 2017-12-21 | 2018-05-18 | 重庆丰望环保科技有限公司 | A kind of medical waste water processing system that new contact-oxidation pool is set |
| CN109437469A (en) * | 2018-06-07 | 2019-03-08 | 四川旭昊德环保设备有限公司 | A kind of purifying domestic sewage method |
| CN109205892A (en) * | 2018-11-21 | 2019-01-15 | 山东海普欧环保设备科技有限公司 | A kind of medical treatment wastewater processing technique |
| CN109650670A (en) * | 2019-01-25 | 2019-04-19 | 广州故乡源水处理有限公司 | The purification method of septic tank purification system |
| CN109809591B (en) * | 2019-02-19 | 2024-05-31 | 深圳市建筑设计研究总院有限公司 | Modular hospital sewage treatment station |
| CN109809591A (en) * | 2019-02-19 | 2019-05-28 | 深圳市建筑设计研究总院有限公司 | Modular Hospital Sewage Treatment station |
| CN110407409A (en) * | 2019-07-25 | 2019-11-05 | 湖南泰瑞医疗科技有限公司 | A kind of medical waste water processing unit |
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| 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 |
| 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 |
| CN111908705A (en) * | 2020-06-18 | 2020-11-10 | 北京绿都浩天环保科技有限公司 | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment |
| CN111908705B (en) * | 2020-06-18 | 2022-07-19 | 北京绿都浩天环保科技有限公司 | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment |
| CN113620535A (en) * | 2021-08-25 | 2021-11-09 | 产学研(广州)环境服务有限公司 | Composite medical wastewater treatment system and method |
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Application publication date: 20150722 |
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