CN113354187A - Method for purifying medical wastewater by integrating grating, anaerobic and RABF - Google Patents
Method for purifying medical wastewater by integrating grating, anaerobic and RABF Download PDFInfo
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- CN113354187A CN113354187A CN202110417569.8A CN202110417569A CN113354187A CN 113354187 A CN113354187 A CN 113354187A CN 202110417569 A CN202110417569 A CN 202110417569A CN 113354187 A CN113354187 A CN 113354187A
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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
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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
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F3/02—Aerobic processes
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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
- C02F3/28—Anaerobic digestion processes
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
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Abstract
The invention discloses an anaerobic RABF (RABF) medical wastewater purification method by integrating a grating, and relates to the technical field of medical wastewater treatment, which comprises the following steps: s1, removing large substances; s2, separating gas, liquid and solid phases; s3, increasing the content of dissolved oxygen and S4, and disinfecting and discharging. The device has the advantages of less floor space, no need of complex operation, realization of high-efficiency treatment of medical wastewater and guarantee of wastewater treatment effect through simple process and structure, realization of gas-liquid-solid three-phase separation, solving of sludge loss of a medical wastewater biochemical treatment system, high retention efficiency of excess water sludge, solving of the problems of poor treatment effect and the like of the existing sewage purification system, realization of integrated circulation sludge self-circulation, effective increase of reflux ratio, enhancement of denitrification effect, improvement of dissolved oxygen content in water, and realization of effective sterilization and disinfection work of purified sewage and standard discharge.
Description
Technical Field
The invention relates to the technical field of medical wastewater treatment, in particular to a medical wastewater purification method integrating a grid, anaerobic and RABF.
Background
Medical wastewater has attracted public attention for many times, and the discharge of medical wastewater has great harm to water resources and becomes a source of harm to the health of the public; only a few hospital indexes that can really reach the national emission standard in some areas. The medical sewage is mainly the sewage discharged from diagnosis and treatment rooms, laboratory rooms, sickrooms, laundry rooms, X-ray photo rooms, operating rooms and the like of hospitals, and the source and the components of the sewage are very complex. Hospital sewage contains a large amount of pathogenic bacteria, viruses and chemical agents and has the characteristics of space pollution, acute infection and latent infection.
In the prior art, the process structure is complex, the number of treatment equipment is large, the occupied area is large, the operation is complex, the sludge in a medical wastewater biochemical treatment system is lost, the interception of the excess water sludge is not ideal enough, the disinfection function is not available, and the treatment effect of a sewage purification system is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a medical wastewater purification method integrating grating, anaerobic and RABF, which solves the problems of complicated process structure, more treatment equipment, large occupied area, complex operation, sludge loss of a medical wastewater biochemical treatment system, unsatisfactory retention of excess sludge, no disinfection function and poor treatment effect of a sewage purification system in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a method for purifying medical wastewater by using a comprehensive grid, anaerobic and RABF, comprising the following steps:
s1, removing large substances;
s2, separating gas, liquid and solid phases;
s3, increasing the content of dissolved oxygen;
and S4, disinfecting and discharging.
Preferably, the method for purifying medical wastewater by using the integrated grating, anaerobic and RABF comprises the following specific steps:
s1, removing large substances
Collecting medical wastewater into a regulating tank, removing larger floating substances and suspended substances through a grid, and lifting the filtered wastewater into an anaerobic reaction tank through a sewage lifting pump so as to be convenient for next purification treatment;
s2, separating gas, liquid and solid phases
Through a perforated water distribution pipeline arranged in an anaerobic reaction tank, after water is uniformly distributed, the water enters a reaction zone for anaerobic reaction, and then enters a three-phase separation module to separate gas, liquid and solid phases, and the gas is collected and discharged through an exhaust pipe; the sludge is intercepted by the three-phase separation module and sinks; the sewage flows out of the RABF biochemical tank through the water collecting weir of the anaerobic reaction tank;
s3, increasing the content of dissolved oxygen
Sewage enters an RABF module after being uniformly distributed in an RABF biochemical tank, an adjustable water collecting tank is arranged in the RABF module, an aeration disc is arranged in the RABF biochemical tank, power is provided by an air blower, the content of dissolved oxygen in the water is improved, and the sewage is purified by the RABF biochemical tank and then flows out through the adjustable water collecting tank;
s4, sterilizing and discharging
The adjustable water collecting tank effluent enters the disinfection system, the purified water can be subjected to ultraviolet disinfection through the disinfection system, and the purified water is discharged after reaching the standard.
Preferably, the S1 large substance removing process is characterized in that the grating and the regulating reservoir are vertically distributed.
Preferably, the reaction zone and the three-phase separation module are distributed in parallel in the S2 gas-liquid-solid three-phase separation process.
Preferably, the aeration disks are equidistantly distributed at the bottom of the RABF biochemical tank during the process of increasing the dissolved oxygen content by S3.
The invention provides a method for purifying medical wastewater by using an integrated grating, anaerobic and RABF, which has the following beneficial effects: the equipment area is less, need not complicated loaded down with trivial details operation, through simple technology and structure, guarantee waste water treatment's effect when can realizing the high-efficient handling of medical waste water, can realize the separation of gas, liquid, solid three-phase, solve medical waste water biochemical treatment system mud and run off, make water passing mud hold back efficiently, solve current sewage purification system treatment effect subalternation problem, realize integration circulation mud self-loopa, effectively increase the reflux ratio, strengthen the denitrogenation effect, improve aquatic dissolved oxygen content, be provided with sterile structure simultaneously, can carry out effectual sterilization virus killing work to the sewage after purifying, realize discharge to reach standard.
Drawings
FIG. 1 is a schematic view of the overall structure of a method for purifying medical wastewater by using an integrated grid, anaerobic and RABF apparatus according to the present invention;
in the figure; 1. a grid; 2. a sewage lift pump; 3. an anaerobic reaction tank; 4. perforating a water distribution pipeline; 5. a reaction zone; 6. a three-phase separation module; 7. an exhaust pipe; 8. the anaerobic reaction tank water collection weir; 9. RABF biochemical tank; 10. a RABF module; 11. an adjustable water collecting tank; 12. a sterilization system; 13. an aeration disc; 14. a blower.
Detailed Description
Referring to fig. 1, the present invention provides a technical solution: a method for purifying medical wastewater by using a comprehensive grid, anaerobic and RABF, comprising the following steps:
s1, removing large substances;
s2, separating gas, liquid and solid phases;
s3, increasing the content of dissolved oxygen;
and S4, disinfecting and discharging.
A method for purifying medical wastewater by using an integrated grid, anaerobic and RABF comprises the following specific steps:
s1, removing large substances
The medical wastewater is collected into a regulating tank, large floating substances and suspended substances are removed through a grid 1, and then the filtered wastewater is lifted to the interior of an anaerobic reaction tank 3 through a sewage lifting pump 2 so as to be convenient for the next purification treatment;
s1, the grid 1 and the adjusting tank are vertically distributed in the process of removing the large substances;
s2, separating gas, liquid and solid phases
Through a perforated water distribution pipeline 4 arranged in an anaerobic reaction tank 3, after water is uniformly distributed, the water enters a reaction zone 5 for anaerobic reaction, and then enters a three-phase separation module 6, so that gas, liquid and solid are separated, and the gas is collected and discharged through an exhaust pipe 7; the sludge is intercepted and sunk by the three-phase separation module 6; the sewage flows out of the water collection weir 8 of the anaerobic reaction tank to the inside of the RABF biochemical tank 9;
s2, the reaction zone 5 and the three-phase separation module 6 are distributed in parallel in the gas-liquid-solid three-phase separation process;
s3, increasing the content of dissolved oxygen
Sewage enters an RABF module 10 after being uniformly distributed in an RABF biochemical tank 9, an adjustable water collecting tank 11 is arranged in the RABF module 10, an aeration disc 13 is distributed in the RABF biochemical tank 9 and is powered by an air blower 14 to improve the content of dissolved oxygen in the water, and the sewage is purified by the RABF biochemical tank 9 and then flows out through the adjustable water collecting tank 11;
s3 in the process of increasing the content of dissolved oxygen, the aeration disks 13 are equidistantly distributed at the bottom of the RABF biochemical tank 9;
s4, sterilizing and discharging
The outlet water of the adjustable water collecting tank 11 enters a disinfection system 12, the purified water can be disinfected by ultraviolet rays through the disinfection system 12, and the purified water is discharged after reaching the standard;
in summary, the method for purifying medical wastewater by using the integrated grating, anaerobic and RABF comprises the following specific steps:
s1, removing large substances
The medical wastewater is collected into a regulating tank, large floating substances and suspended substances are removed through a grid 1, and then the filtered wastewater is lifted to the interior of an anaerobic reaction tank 3 through a sewage lifting pump 2 so as to be convenient for the next purification treatment;
s2, separating gas, liquid and solid phases
Through a perforated water distribution pipeline 4 arranged in an anaerobic reaction tank 3, after water is uniformly distributed, the water enters a reaction zone 5 for anaerobic reaction, and then enters a three-phase separation module 6, so that gas, liquid and solid are separated, and the gas is collected and discharged through an exhaust pipe 7; the sludge is intercepted and sunk by the three-phase separation module 6; the sewage flows out of the water collection weir 8 of the anaerobic reaction tank to the inside of the RABF biochemical tank 9;
s3, increasing the content of dissolved oxygen
Sewage enters an RABF module 10 after being uniformly distributed in an RABF biochemical tank 9, an adjustable water collecting tank 11 is arranged in the RABF module 10, an aeration disc 13 is distributed in the RABF biochemical tank 9 and is powered by an air blower 14 to improve the content of dissolved oxygen in the water, and the sewage is purified by the RABF biochemical tank 9 and then flows out through the adjustable water collecting tank 11;
s4, sterilizing and discharging
The adjustable water collecting tank 11 goes out water and gets into disinfection system 12, can carry out ultraviolet ray disinfection to the water after the purification through disinfection system 12, discharges up to standard after the disinfection.
Claims (5)
1. A method for purifying medical wastewater by using an integrated grid, anaerobic and RABF is characterized by comprising the following steps:
s1, removing large substances;
s2, separating gas, liquid and solid phases;
s3, increasing the content of dissolved oxygen;
and S4, disinfecting and discharging.
2. A method for the integrated grid, anaerobic, RABF medical wastewater purification of claim 1, wherein: the method for purifying medical wastewater by using the integrated grating, anaerobic and RABF comprises the following specific steps:
s1, removing large substances
The medical wastewater is collected into a regulating tank, large floating substances and suspended substances are removed through a grid (1), and then the filtered wastewater is lifted into an anaerobic reaction tank (3) through a sewage lifting pump (2) so as to be convenient for the next purification treatment;
s2, separating gas, liquid and solid phases
Through a perforated water distribution pipeline (4) distributed in an anaerobic reaction tank (3), after water is uniformly distributed, the water enters a reaction zone (5) for anaerobic reaction and then enters a three-phase separation module (6) to separate gas, liquid and solid phases, and the gas is collected and discharged through an exhaust pipe (7); the sludge is intercepted and sunk by a three-phase separation module (6); the sewage flows out of the water collection weir (8) of the anaerobic reaction tank to the inside of the RABF biochemical tank (9);
s3, increasing the content of dissolved oxygen
Sewage enters an RABF module (10) after being uniformly distributed in an RABF biochemical tank (9), an adjustable water collecting tank (11) is arranged in the RABF module (10), an aeration disc (13) is arranged in the RABF biochemical tank (9), power is provided by an air blower (14) to improve the content of dissolved oxygen in the water, and the sewage is purified by the RABF biochemical tank (9) and then flows out of the water through the adjustable water collecting tank (11);
s4, sterilizing and discharging
The outlet water of the adjustable water collecting tank (11) enters a disinfection system (12), the purified water can be disinfected by ultraviolet rays through the disinfection system (12), and the purified water is discharged after reaching the standard.
3. A method for the integrated grid, anaerobic, RABF medical wastewater purification of claim 2, wherein: and the grid (1) and the regulating tank are vertically distributed in the S1 large substance removing process.
4. A method for the integrated grid, anaerobic, RABF medical wastewater purification of claim 2, wherein: the reaction zone (5) and the three-phase separation module (6) are distributed in parallel in the S2 gas-liquid-solid three-phase separation process.
5. A method for the integrated grid, anaerobic, RABF medical wastewater purification of claim 2, wherein: and in the process of increasing the dissolved oxygen content by the S3, the aeration disks (13) are equidistantly distributed at the bottom of the RABF biochemical tank (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110417569.8A CN113354187A (en) | 2021-04-19 | 2021-04-19 | Method for purifying medical wastewater by integrating grating, anaerobic and RABF |
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| CN202110417569.8A CN113354187A (en) | 2021-04-19 | 2021-04-19 | Method for purifying medical wastewater by integrating grating, anaerobic and RABF |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016186A (en) * | 2006-02-15 | 2007-08-15 | 戴立明 | Biological treatment method and device for ecological system of sewage circulation utilization |
| CN110451722A (en) * | 2019-08-08 | 2019-11-15 | 四川美富特生态科技有限责任公司 | A kind of sewage disposal system |
| CN111333191A (en) * | 2019-11-28 | 2020-06-26 | 恩格拜（武汉）生态科技有限公司 | Method for treating high-concentration organic wastewater by anaerobic-aerobic deep coupling |
| CN212246401U (en) * | 2020-03-26 | 2020-12-29 | 徐义通 | Anaerobic reaction sewage treatment device integrating three-phase separator |
| CN212246393U (en) * | 2020-03-26 | 2020-12-29 | 徐义通 | Sewage treatment device adopting circulating aerobic reaction |
-
2021
- 2021-04-19 CN CN202110417569.8A patent/CN113354187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016186A (en) * | 2006-02-15 | 2007-08-15 | 戴立明 | Biological treatment method and device for ecological system of sewage circulation utilization |
| CN110451722A (en) * | 2019-08-08 | 2019-11-15 | 四川美富特生态科技有限责任公司 | A kind of sewage disposal system |
| CN111333191A (en) * | 2019-11-28 | 2020-06-26 | 恩格拜（武汉）生态科技有限公司 | Method for treating high-concentration organic wastewater by anaerobic-aerobic deep coupling |
| CN212246401U (en) * | 2020-03-26 | 2020-12-29 | 徐义通 | Anaerobic reaction sewage treatment device integrating three-phase separator |
| CN212246393U (en) * | 2020-03-26 | 2020-12-29 | 徐义通 | Sewage treatment device adopting circulating aerobic reaction |
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Application publication date: 20210907 |
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