CN211644984U - Hospital domestic sewage purification system - Google Patents
Hospital domestic sewage purification system Download PDFInfo
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- CN211644984U CN211644984U CN201922441829.6U CN201922441829U CN211644984U CN 211644984 U CN211644984 U CN 211644984U CN 201922441829 U CN201922441829 U CN 201922441829U CN 211644984 U CN211644984 U CN 211644984U
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Abstract
The utility model relates to a hospital domestic sewage purification system, which comprises a dosing machine room, a disinfectant feeding device, a sand setting adjusting hydrolysis acidification tank, a multistage anaerobic tank, a sedimentation tank, a contact disinfection tank and a filter tank which are sequentially communicated; the disinfectant adding device is arranged in the drug adding machine room and is used for adding disinfectant into the contact disinfection tank; the biogas generated by the anaerobic tank is connected to a biogas storage cabinet. The utility model adopts high-efficiency biochemical disinfection treatment, can effectively remove germs, CODcr, BOD5 and SS in the domestic sewage of hospitals, and the biomembrane fixed on the filler can continuously, uniformly and fully degrade pollutants, thereby having reliable guarantee when reaching the standard; the bacteria-rich filler is arranged in the pool, and the biological membrane fixed on the filler can continuously, uniformly and fully degrade pollutants, so that the standard reaching is reliably guaranteed; meanwhile, the unit volume load and the pollutant removal rate can be greatly improved, and the tank capacity, the occupied area, the investment and the operating cost can be reduced.
Description
Technical Field
The utility model relates to a useless sewage treatment purifies technical field, especially relates to hospital's domestic sewage purification system.
Background
The hospital sewage is mainly from domestic sewage of patients and medical care personnel. Pollutants in the sewage are mainly CODCr, BOD5 and SS, and biomass germs and viruses, wherein the most serious harm is infectious germs and viruses, the serious harm is easy to bring to human living environment, and the pollutants are suitable for local and nearby treatment.
Moreover, the hospital sewage has complex components, contains various biomass germs and toxins, has high CODcr, BOD5 and SS, adopts an original single-pit septic tank or a three-grid septic tank or simple ' feces retting ' and single ' disinfection to directly discharge domestic sewage formed by ' dry toilets or water closets ' and catering and washing water, and is difficult to reach the discharge standard and the sanitary standard, thereby being easy to cause harm to human beings.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at providing a low high-efficient easy living sewage purification ecosystem who goes of throwing for the numerous little, the medium hospital of new rural construction middle and town, rural field, village society, be convenient for effectively get rid of the living beings pollutant and the germ virus in the hospital sewage.
In order to achieve the above purpose, the utility model discloses an ecological technology, the scheme is as follows:
the hospital domestic sewage purification system comprises a dosing machine room, a disinfectant adding device, a deslagging grid groove, a sand setting adjusting hydrolysis acidification pool, a multistage anaerobic pool, a sedimentation pool, a contact disinfection pool and a filtering pool which are sequentially communicated, wherein the dosing machine room is arranged above the contact disinfection pool, and the disinfectant adding device is arranged in the dosing machine room and used for adding disinfectant into the contact disinfection pool;
the gas outlet of the anaerobic tank is connected with the biogas storage cabinet, and a dehydration device and a desulfurization device are arranged between the gas outlet of the anaerobic tank and the biogas storage cabinet.
Further, the disinfectant adding device is a chlorine dioxide generation adding device.
Or the disinfectant adding device is an infusion apparatus.
Preferably, the multistage anaerobic tank is a three-stage high-efficiency anaerobic tank. Each stage is used for removing a part of pollutants in the sewage on the basis of the previous stage, so that the decontamination efficiency can be improved, and the purification effect is ensured.
Furthermore, the lower part of the anaerobic tank is provided with an activated sludge bed, the bed bottom is provided with a water distributor connected with the water from the front tank, and the water distributor is provided with a filler biofilm bed.
Preferably, the hydrolysis acidification tank and the anaerobic tank are internally provided with bacteria-rich fillers.
Further preferably, the filler is an elastomeric and BF filler.
Furthermore, a self-flowing design is adopted between the hydrolysis acidification tank and the anaerobic tank, between the anaerobic tanks and up to a terminal discharge port.
Compared with the prior art, the utility model discloses have following effect of showing:
1, the utility model adopts high-efficiency biochemical disinfection treatment, can effectively remove biomass germs, viruses, CODcr, BOD5 and SS in hospital sewage, and the biomembrane fixed on the filler can continuously, uniformly and fully degrade pollutants, thereby having reliable guarantee when reaching standards;
2. the bacteria-rich filler is arranged in the pool, and the biological membrane fixed on the filler can continuously, uniformly and fully degrade pollutants, so that the standard reaching is reliably guaranteed; meanwhile, the unit volume load and the pollutant reduction rate can be greatly improved, and the tank capacity, the occupied area, the investment and the operating cost can be reduced;
3. the utility model has the advantages that the design of self-flow among the tanks has no water pump lifting and power consumption, thereby reducing investment, transportation and management cost, failure and maintenance difficulty, and the treated drainage can be reused as cleaning and greening water, thereby obtaining certain economic benefit;
4, the utility model adopts anaerobic treatment as the main part, and has low energy consumption, low investment, low operating cost and simple management; the produced sludge is little and only is 1/6-1/10 of aerobic, the mineralization degree is high, the dehydration is easy, the treatment device is small, and the corresponding treatment cost is low;
5，anaerobic treatment is mainly adopted, so that the purification treatment is mostly carried out under a closed condition, and the operation control and odor control are easy; the anaerobic sludge has less nutrient, high sludge concentration and capacity load of 5-10 kgCOD/m3D, the height can reach 50kg COD/m3D; the sludge can be stored for a long time and keeps activity, so that seasonal intermittent operation is normal;
6, the produced sludge and methane can be used as fertilizer, feed and chemical raw materials, and have certain economic benefit.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a plan view of the present invention;
FIG. 3 is a cross-sectional view taken at A in FIG. 2;
FIG. 4 is a schematic view of a process for classifying and treating domestic sewage;
FIG. 5 is a schematic view of a process for classifying and treating a specific waste water.
Detailed Description
In order to make the objects, ecological solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, 2 and 3, the hospital domestic sewage purification system disclosed in the present embodiment includes a chemical adding machine room 7, a disinfectant adding device 8, and a slag removal grid groove 11, a sand setting adjusting hydrolysis acidification tank 1, a multistage anaerobic tank, a sedimentation tank 10, a contact disinfection tank 5 and a filter tank 6 which are sequentially communicated, wherein the chemical adding machine room 7 is arranged above the contact disinfection tank 5, and the disinfectant adding device 8 is arranged in the chemical adding machine room 7 and used for adding disinfectant into the contact disinfection tank 5. The disinfectant adding device 8 is automatic or semi-automatic.
The gas outlet of the anaerobic tank is connected with the biogas storage cabinet, and a dehydration device and a desulfurization device are arranged between the gas outlet of the anaerobic tank and the biogas storage cabinet.
The hospital domestic sewage belongs to comprehensive sewage and contains coarse floating slag. Therefore, the utility model discloses establish slagging-off bars net groove 11 at 1 entrance of sand setting regulation hydrolysis-acidification pond, establish grid and net in the slagging-off bars net groove 11. The effective area of the grids and the net is about 0.08 square meter, and the net spacing between grid bars is 5mm-l0 mm; the grid is a stainless steel net with the mesh size below 10 meshes; 2 each for the grid and mesh.
After the domestic sewage flows through the grating and the net to be removed, the domestic sewage is prevented from blocking subsequent treatment facilities and equipment, so that the treatment effect is not influenced. The manual slag removal is adopted, the manual slag removal is carried out periodically according to the generation condition of slag, and the slag is discharged into other medical solid wastes for pretreatment.
In the embodiment, the multistage anaerobic tank is a three-stage efficient anaerobic tank: a first-stage efficient anaerobic tank 2, a second-stage efficient anaerobic tank 3 and a third-stage efficient anaerobic tank 4. The lower part of the anaerobic tank is provided with an activated sludge bed, the bed bottom is provided with a water distributor 12 connected with the water from the front tank, and a filler biomembrane bed 13 is arranged on the water distributor.
The high-efficiency anaerobic tank 3 is internally provided with the bacteria-rich filler, so that the unit volume load and the pollutant reduction rate are greatly improved, and the tank volume, the occupied area, the investment and the operating cost can be reduced. The biological film fixed on the filler can continuously, uniformly and fully degrade pollutants, and the standard reaching is reliably guaranteed. The filler is preferably BF and elastic filler. As shown in figure 3, the utility model discloses between well hydrolysis-acidification tank 1 and anaerobism pond to and adopt the design of flowing automatically between the anaerobism pond, reduce the pump and mention the power consumption, and then reduce investment, fortune pipe charge and maintain the degree of difficulty.
The principle of the utility model is as follows:
after the domestic sewage passes through the grating and the net, the thick and heavy solid and floating objects are intercepted; the effluent enters a sand setting adjusting hydrolysis acidification tank 1, and is subjected to slag removal, sediment precipitation, water quality and quantity adjustment and hydrolysis acidification;
and the sewage enters a first-stage high-efficiency anaerobic tank 2, a second-stage high-efficiency anaerobic tank 3 and a third-stage high-efficiency anaerobic tank 4, and most organic matters in the sewage are decomposed and most biomass germs, viruses and ova are inactivated under the action of anaerobic bacteria.
The domestic sewage treated by the microorganisms at the front section is subjected to mud-water separation in the sedimentation tank 10 and the sedimentation tank 10, clear water flows through the contact disinfection tank 5, the disinfectant adding device 8 mixes/drops a strong oxidation disinfectant into the contact disinfection tank 5, and the strong oxidation disinfectant kills and reduces germs, viruses and residual pollutants in the domestic sewage; finally, the effluent quality can be ensured to be discharged after being filtered by the filter 6. A sampling well 13 is arranged at the outlet of the filtering tank 6, and the sampling well 13 is connected with a drainage pipeline.
The sludge in the tank is lifted to a sludge concentration tank by a sludge pump, and after concentration, the sludge is transported outside to be disinfected and treated as an agricultural fertilizer or a garbage yard.
The use method of the utility model is described below with reference to the attached drawings 1-5:
as shown in FIG. 4, the boundary between the affected area and the non-affected area should be clear, and the treatment should be divided according to the difficulty, technical content and cost saving, and collected after classification treatment.
As shown in fig. 5, the domestic sewage contains more oil, such as oil stain, an oil separation tank is required to remove the oil, and then the sewage can be generally merged into a proper position of a domestic sewage treatment system; recovering silver from the waste liquid of the phase washing chamber and then treating the waste liquid; the mercury-containing wastewater of the stomatology department is required to be additionally subjected to mercury removal treatment.
The waste water shown in fig. 5 is strictly prohibited from being discharged into domestic sewage for treatment, and the hospital should be classified for treatment.
The two types of sewage enter a domestic sewage grit adjusting hydrolysis acidification tank 1 after passing through a grid and a net, and the effective volume of the grit adjusting hydrolysis acidification tank 1 is 25 m3And the HRT (high-efficiency anaerobic treatment) retention time in the sand setting regulation hydrolysis acidification tank 1 is more than or equal to 2.5 hours, and the sand setting, the water quality and quantity regulation and the hydrolysis acidification are carried out, and then the sludge enters a three-level high-efficiency anaerobic tank:
the three-level high-efficiency anaerobic tank is provided with fillers, and the total volume of the three tanks is 80 m3(containing special medical wastewater pool 20 m)3) And the total mounting filler of the three-level high-efficiency anaerobic tank is 60 m3And a water distributor. Each-stage high-efficiency anaerobic tank is used for removing about 60% of pollutants in sewage on the basis of the previous stage, and each-stage high-efficiency anaerobic tank is hydraulically stayed for 8 hours;
the effluent of the anaerobic tank is precipitated, disinfected and filtered, the sludge and the water are fully separated, then clear water is discharged, the hydraulic retention time is 3.5h, and the effective tank capacity is 30m3And 2, making one grid.
The disinfectant selects the high-efficiency medicament for killing bacteria and viruses without secondary pollution, can further ensure the environmental protection to reach the standard, does not need to consider the excessive residual chlorine and the replacement worry, has low cost and convenient use and is a type and a disinfectant.
The area of the chemical adding machine room 7 is 6m2It should be separated into two parts, namely, a medicine storage room and a medicine dispensing machine room.
After the biomass organic wastewater is hydrolyzed and acidified for 2.5-5.0h by the sand settling and adjusting hydrolysis and acidification tank 1, 40%, 30% and 80% of COD, BOD and SS are respectively removed, and then the biomass organic wastewater enters post-treatment. The reactor is combined with a water collecting chamber, a homogenizing adjusting chamber and a pressure adjusting chamber of an anaerobic tank for water treatment into a whole, so that the integration of multiple processes and functions can be realized, the reactor is reduced, and the investment, operation and management costs are saved.
Domestic sewage enters a first-stage high-efficiency anaerobic tank 2, a second-stage high-efficiency anaerobic tank 3 and a third-stage high-efficiency anaerobic tank 4, and most organic matters in the sewage are decomposed and most biomass germs, viruses and ova are inactivated under the action of anaerobic bacteria.
The sewage treated by the microorganisms at the front section is subjected to mud-water separation in the sedimentation tank 10 and the sedimentation tank 10, clear water flows through the contact disinfection tank 5, the disinfectant adding device 8 is used for mixing/dripping strong oxidation disinfectant into the contact disinfection tank 5, and the strong oxidation disinfectant kills and reduces pathogenic bacteria and viruses and residual pollutants in the sewage; finally, the effluent quality can be ensured to be discharged after being filtered by the filter 6. A sampling well 13 is arranged at the outlet of the filtering tank 6, and the sampling well 13 is connected with a drainage pipeline.
The sludge concentration tank is used for storing sludge discharged from the anaerobic tank and the sedimentation tank, and the sludge in the sludge concentration tank is subjected to primary concentration and volume reduction to obtain an effective tank volume of 20m3。
In another embodiment, the settling tank 10 may double as a disinfectant dosing contact tank.
The disinfectant adopts an automatic or semi-automatic adding machine, the disinfectant adding device 8 can select a YG-200 type chlorine dioxide generating and adding device, and the device is necessary to be matched by middle and small-scale hospitals. The chlorine dioxide generating and adding device consumes electricity and has high investment, so that faults and emergencies cannot occur at times. In remote mountain hospitals or treasures, a proper medicament is added by adopting a human infusion apparatus for titration and disinfection.
Example two
The difference between this embodiment and the first embodiment is: in the embodiment, the three-stage high-efficiency anaerobic tanks are respectively a first-stage anaerobic composite sludge bed high-efficiency anaerobic tank, which is called a first-stage UASB + AF anaerobic tank for short; a second stage down-flow type fixed biological membrane high-efficiency anaerobic tank, which is called a second stage DSFF anaerobic tank for short; the third-stage high-efficiency anaerobic tank is an up-flow type anaerobic filtration high-efficiency anaerobic tank, and is called a third-stage AF anaerobic tank for short.
The first stage high efficiency anaerobic tank is an anaerobic composite sludge bed high efficiency anaerobic tank, the tank is a UASB + AF reactor which is formed by the combination of an active sludge bed of an up-flow anaerobic sludge bed reactor, an anaerobic filter and a filter (filling) biomembrane bed of a down-flow anaerobic filter and is matched with a water distributor. The lower part of the tank is 1.0m active sludge bed, the bottom of the tank is provided with a water distributor connected with the water from the front tank, the upper part of the tank is provided with a filtering (filling) material biomembrane bed with the thickness of 1.0-3.0 m, and the thickness is determined according to the water quantity and the effective water depth of the tank.
The water distributor at the bottom of the sludge bed can digest the activated sludge from bottom to top and make the fully activated sludge bed enrich, acclimate and propagate the granular sludge in the metabolism.
The core of the anaerobic filter and the down-flow anaerobic filter is a filtering (filling) material biomembrane bed, and the wastewater plays a key role no matter passes through the biomembrane bed in an up-flow and down-flow mode, so that the anaerobic filter does not consume energy, generates the biogas CH4, and is simple to manage after entering normal operation.
The sludge generated in each pool is turbid in effluent according to the operation for 1 year to no more than 2 years, and is pumped by a sludge pump pipe to be transported to other places needing to be used as strains, or used as agricultural and forestry fruit and vegetable fertilizers, or used for garbage field treatment. In practical application, sludge is inoculated, cultured and domesticated, so that the sludge can be quickly started and normally operated.
The utility model adopts high-efficiency biochemical disinfection treatment, can effectively remove biomass germs, viruses, ova, CODcr, BOD5 and SS in the domestic sewage of hospitals, and the biomembrane fixed on the filler can continuously, uniformly and fully degrade pollutants, thereby having reliable guarantee when reaching the standard; the treated drained water can be reused as water for cleaning and greening, and certain economic benefit is obtained.
The present invention is capable of other embodiments and its several details are capable of modification and variation and can be made by those skilled in the art without departing from the spirit and essential attributes of the invention.
Claims (8)
1. Hospital's domestic sewage clean system, its characterized in that: the device comprises a dosing machine room, a disinfectant adding device, and a deslagging grid groove, a sand setting adjusting hydrolysis acidification tank, a multistage anaerobic tank, a sedimentation tank, a contact disinfection tank and a filter tank which are sequentially communicated, wherein the dosing machine room is arranged above the contact disinfection tank, and the disinfectant adding device is arranged in the dosing machine room and used for adding disinfectant into the contact disinfection tank;
the gas outlet of the anaerobic tank is connected with the biogas storage cabinet, and a dehydration device and a desulfurization device are arranged between the gas outlet of the anaerobic tank and the biogas storage cabinet.
2. The hospital domestic sewage purification system according to claim 1, wherein: the disinfectant adding device is a chlorine dioxide generation adding device.
3. The hospital domestic sewage purification system according to claim 1, wherein: the multistage anaerobic tank is a three-stage efficient anaerobic tank.
4. The hospital domestic sewage purification system according to claim 3, characterized in that: the lower part of the anaerobic tank is provided with an activated sludge bed, the bed bottom is provided with a water distributor connected with the water from the front tank, and a filler biomembrane bed is arranged above the activated sludge bed.
5. The hospital domestic sewage purification system according to claim 4, wherein: the hydrolysis acidification tank and the anaerobic tank are internally provided with bacteria-rich fillers.
6. The hospital domestic sewage purification system according to claim 5, wherein: the filler is elastic and BF filler.
7. The hospital domestic sewage purification system according to claim 1, wherein: and a self-flowing design is adopted between the hydrolysis acidification tank and the anaerobic tank, between the anaerobic tanks and up to a terminal discharge port.
8. The hospital domestic sewage purification system according to claim 1, wherein: the disinfectant adding device is an infusion apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441829.6U CN211644984U (en) | 2019-12-30 | 2019-12-30 | Hospital domestic sewage purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441829.6U CN211644984U (en) | 2019-12-30 | 2019-12-30 | Hospital domestic sewage purification system |
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| Publication Number | Publication Date |
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| CN211644984U true CN211644984U (en) | 2020-10-09 |
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| CN201922441829.6U Active CN211644984U (en) | 2019-12-30 | 2019-12-30 | Hospital domestic sewage purification system |
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