CN102424486A - Process and apparatus for treating waste water in medical waste disposal plant - Google Patents
Process and apparatus for treating waste water in medical waste disposal plant Download PDFInfo
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- CN102424486A CN102424486A CN2011103163990A CN201110316399A CN102424486A CN 102424486 A CN102424486 A CN 102424486A CN 2011103163990 A CN2011103163990 A CN 2011103163990A CN 201110316399 A CN201110316399 A CN 201110316399A CN 102424486 A CN102424486 A CN 102424486A
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Abstract
The invention relates to a process and an apparatus for treating waste water in a medical waste disposal plant. The process is used to treat a variety of waste water respectively and comprises treatment of disinfection waste water produced in disinfecting and cleaning of vehicles and pass boxes, treatment of leachate of medical waste and domestic sewage, and treatment of waste water of a workshop, effluent of a sedimentation basin and primary rainwater. The apparatus for treating waste water comprises a disinfection waste water treating device, a medical waste leachate treating device and an in-depth treating device. According to the invention, waste water in a medical waste disposal plant is treated by respectively using a physicochemical treating process and a biochemical treating process, and reclaimed water is reused at the same time; the treating apparatus has the advantages of small investment, low operational cost, simple operation and saving of the water resource.
Description
Technical field
The invention belongs to technical field of sewage, relate to a kind of medical waste treatment factory wastewater treatment process and device.
Background technology
Clinical waste is meant having directly or the refuses of indirect infection property, toxicity and other hazardness that medical and health organization produces in medical treatment, disease-prevention or healthcare and other correlated activations.The clinical waste contaminate environment, spreading disease, pose a health risk, endanger very greatly, is the primary refuse in " national Hazardous wastes register " 47 types of Hazardous wastess.Since 2003 " national Hazardous wastes and the planning of medical waste treatment Facilities Construction " is implemented, technological lines such as rotary kiln incineration, pyrolytic incineration, steam sterilizing and microwave disinfection have mainly been adopted for medical waste treatment.The WWT of medical waste treatment factory generally adopts routine biochemistry and materialization to handle, but because the special processing process of clinical waste, medical waste treatment factory sewage quality is complicated, and the general water yield is less.Shandong Province city medical waste treatment factory adopts the SBR biochemical treatment, and thimerosal waste water gets into biochemistry pool, and bacterium is all killed, and the result can't run.Henan Province medical waste treatment factory adopts materialization treatment process sand filtration+ozone+charcoal absorption, and not only working cost height, and processing back sewage also need transport sewage work's pin and receive.Hubei Province medical waste treatment factory adopts integrated sewage treating apparatus, is not reach emission standard in theory.Therefore, the sewage disposal technology of medical waste treatment factory is badly in need of a kind of environmental protection, less investment, treatment process that treatment effect is good.
In addition; Medical waste treatment factory adopts the general scale of investment of high-temperature steam sterilizing treatmenting process less, but the water quality that medical waste treatment factory produces is comparatively complicated, and containing high concentrated organic wastewater mainly is the clinical waste percolate that produces in the Sterilizers vacuum; The disinfected wastewater that produces in clinical waste transfer car(buggy) and the Turnover Box sterilizing process; Sewage, workshop dash ground water, elementary rainwater etc.Generally all addressing is away from the Residential areas to require medical waste treatment factory according to protection distance in addition, and most of factory site does not have city planting ductwork, and therefore middle water reuse is also imperative.Therefore a kind of less investment need be provided, working cost is few and can in the medical waste treatment factory sewage treatment process and the device of water reuse.
Summary of the invention
A kind of medical waste treatment factory wastewater treatment process and the device that the objective of the invention is to be directed against the problems referred to above and propose.
To achieve these goals, technical scheme of the present invention is:
The treatment process of a kind of medical waste treatment factory waste water; Comprise vehicle and Turnover Box sterilization, clean processing with disinfected wastewater, clinical waste percolate, sewage, elementary rainwater and workshop waste water; Described treatment process is handled respectively various waste water, comprises the sterilization of vehicle and Turnover Box, cleans processing with disinfected wastewater, to the processing of clinical waste percolate, sewage with to the processing of elementary rainwater and workshop waste water:
(1) vehicle and Turnover Box sterilization, cleaning are handled with disinfected wastewater:
A: disinfected wastewater pre-treatment:
Disinfected wastewater carries out precipitation process; Described disinfected wastewater flows to settling tank through pipeline, obtains the preliminary sedimentation disinfected wastewater, and preliminary sedimentation waste water to settling pond, obtains clarification disinfecting waste water through the overflow weir overflow;
B: disinfected wastewater filtration treatment:
Clarification disinfecting waste water gets into filtration unit, carries out filtration treatment, obtains filter-sterilized waste water;
C: disinfected wastewater reuse:
Filter-sterilized waste water is back to the thimerosal storage tank through pipeline, behind the additional thimerosal, recycles;
(2) clinical waste percolate and sanitary sewage disposal:
A: pre-treatment:
The clinical waste percolate gets into septic tank through pipeline, and sewage gets into septic tank through pipeline, and clinical waste percolate and sewage are in the septic tank mixing and carry out anaerobic treatment, obtain septic tank effluent;
B: biochemical treatment:
Septic tank effluent gets into equalizing tank, is promoted to contact-oxidation pool through pump and carries out the aerobic biochemical processing, obtains the contact-oxidation pool water outlet;
C: precipitation process:
The contact-oxidation pool water outlet gets into settling tank, and the precipitating sludge after the settling tank mud-water separation enters sludge sump, and the supernatant after settling tank is handled is that the settling tank water outlet gets into wastewater equalization pond;
(3) workshop waste water, settling tank water outlet, elementary rainwater are handled:
A: materialization is handled:
Described workshop waste water, settling tank water outlet, elementary rainwater all are collected into wastewater equalization pond; Through pump the waste water in the wastewater equalization pond is promoted to flocculation tank, carries out flocculation reaction, quantitatively add flocculation agent in the described flocculation tank; Mixture after the flocculation reaction flows into settling tank; Carry out mud-water separation at settling tank, the mud of post precipitation enters sludge thickener, and supernatant flows into intermediate water tank;
B: filtration treatment:
The intermediate water tank water outlet is promoted to filtration unit through pump, obtains middle water, and middle water is stored to middle water tank;
C: disinfect:
Middle water disinfection after the filtration, water reuse standard in reaching.
Further, described treatment process also comprises the technological process of filtration unit being carried out back flushing.
Further, described elementary rainwater is the rainwater that washes away of medical waste treatment factory collected in initial 15 minutes of the rainfall.
Another object of the present invention realizes through following technical scheme:
A kind of wastewater treatment equipment to above-mentioned medical waste treatment factory wastewater treatment process comprises disinfected wastewater treatment unit, clinical waste percolate treatment unit and advanced treatment apparatus,
Said disinfected wastewater treatment unit: the settling tank and settling pond, filtration unit and the thimerosal storage tank that comprise the reception disinfected wastewater that is linked in sequence; Be provided with overflow weir between settling tank and the settling pond, settling pond is communicated with filtration unit through the submersible pump output tube, and filtration unit is through pipeline connection thimerosal storage tank, and the settling tank of said thimerosal waste water is a vertical sedimentation basin;
Said clinical waste percolate treatment unit: comprise the collection clinical waste percolate that is linked in sequence and septic tank, equalizing tank, contact-oxidation pool, settling tank and the sludge sump of sewage; In septic tank, be provided with the plastics ball filler; Septic tank is communicated with equalizing tank through overflow weir; Between equalizing tank and settling tank, be provided with a contact-oxidation pool, be provided with submersible pump in the said equalizing tank, the output tube of submersible pump is connected to contact-oxidation pool; Contact-oxidation pool is communicated with settling tank through overflow weir, and settling tank connects sludge sump;
Said advanced treatment apparatus: comprise the wastewater equalization pond that is linked in sequence, flocculation tank, settling tank, filtration unit, the middle water tank that adds flocculation agent; Described advanced treatment apparatus is the Integrated Processing Unit that production plant disinfected wastewater, settling tank water outlet, elementary rainwater are handled;
Settling tank in the said clinical waste percolate treatment unit is communicated with the wastewater equalization pond of degree of depth device through overflow weir.
Further, described filtration unit is placed in-line deep bed filter in front and back and laminated filter.
Further, described deep bed filter is 50 microns deep bed filter, and described laminated filter is 0.45 micron laminated filter.
Further, said contact-oxidation pool includes the pond body, is provided with semi soft packing at the pond body between at the bottom of the suitable for reading and pond, and the sewage outlet of said submersible pump output tube is arranged under the semi soft packing, under semi soft packing, also is provided with jet aerator.
Further, said semi soft packing is made up of the plastic deeping of a plurality of permutation and combination, and 3 centimetres of perpendicular separations, left and right horizontal are separated continuously up and down between the said net sheet arranges.
Further, described thimerosal storage tank also connects a thimerosal storage tank.
Further; Described composite wastewater treatment unit also comprises an elementary rain collector; Said elementary rain collector comprises the rainwater receiving tank, and said rainwater receiving tank connects an elementary rainwater set in the medical waste treatment field through pipe connecting and collects well, and elementary rainwater is collected in the well and under the mouth of pipe of said pipe connecting, is provided with an elementary rainwater collection tube; Collection tube is provided with electrically operated valve, and a timing controller is connected to electrically operated valve; Elementary rainwater collection tube is connected to wastewater equalization pond.
The invention has the beneficial effects as follows:
(1) the present invention handles medical waste treatment factory waste water respectively according to the difference of water quality; Different water quality is taked different treatment process; And water reuse during the waste water after handling can be used as; Save the working cost of medical waste treatment factory on the one hand, save water resources on the other hand, solved the water resources problem of medical waste treatment factory simultaneously;
(2) the present invention handles disinfected wastewater through simple sedimentation and filtration; Direct reuse is in the sterilization water after removing the SS thing in the disinfected wastewater; Reduced the thimerosal consumption of medical waste treatment factory on the one hand; Cut operating costs, avoided the influence of disinfected wastewater on the other hand other sewage treatment process;
(3) the present invention also includes elementary rainwater the category of waste water in, because the singularity of medical waste treatment factory, elementary rainwater is prone to polluted by clinical waste, contains pathogenic bacterium, must disinfection, and avoid elementary rainwater to flow directly into municipal Storm Sewer Network;
(4) the invention provides a kind of technology of handling medical waste treatment factory waste water, this technology investment is few, and working cost is low, and is simple to operate, can realize wastewater zero discharge.
Below in conjunction with accompanying drawing and embodiment the present invention is made a detailed description.
Description of drawings
Fig. 1 is the overall schematic of medical waste treatment of the present invention factory sewage treatment process.
Embodiment
Referring to Fig. 1, the treatment process of a kind of medical waste treatment factory waste water comprises vehicle and Turnover Box sterilization, cleans the processing with disinfected wastewater, clinical waste percolate and sewage and workshop waste water and elementary rainwater.Medical waste treatment factory waste water is different from medical waste water, and the waste water of medical waste treatment factory mainly comes from the medical waste high temperature steam sterilizing and disposes factory or medical wastes incineration disposal factory.The waste water that the medical waste high temperature steam sterilizing is disposed factory comprises that mainly the phlegma, the phlegma in the waste gas treatment process, the mill floor that produce in the percolate, sewage, high-temperature steam treatment facility inner chamber of vehicle and Turnover Box cleaning and sterilizing waste water, clinical waste wash away waste water etc.And generally disinfect the chlorine disinfectant technology that is adopted follow-up biological sewage treatment there is very big influence.Therefore, treatment process of the present invention is handled respectively various waste water, comprising:
(1) vehicle and Turnover Box are sterilized, cleaned with disinfected wastewater 1: described disinfected wastewater mainly is the waste water that produces in clinical waste transfer car(buggy) and the Turnover Box sterilizing process, mainly contains Youxiaolin and a spot of SS thing (SS) in the disinfected wastewater; Among the present invention disinfected wastewater is handled individual curing, recycle after adding thimerosal; Disinfected wastewater is handled and is comprised as follows step in sequence:
A: disinfected wastewater pre-treatment:
Disinfected wastewater carries out precipitation process; Described disinfected wastewater flows to settling tank 2 through pipeline, obtains the preliminary sedimentation disinfected wastewater, and preliminary sedimentation waste water to settling pond 3, obtains clarification disinfecting waste water through the overflow weir overflow; In the present embodiment, described settling tank is a vertical sedimentation basin, is provided with overflow weir in the middle of described settling tank and the settling pond; The precipitating sludge that settling tank produces enters sludge sump or regularly draws clearly.
B: disinfected wastewater filtration treatment:
Clarification disinfecting waste water gets into filtration unit 4, carries out filtration treatment, obtains filter-sterilized waste water; Clarification disinfecting waste water is removed contained SS in the disinfected wastewater through the further filtration of filtration unit, and in the present embodiment, clarification disinfecting waste water is promoted in the filtration unit through submersible pump;
C: disinfected wastewater reuse:
Filter-sterilized waste water flows to thimerosal storage tank 5 through pipeline, behind the additional thimerosal 6, recycles;
To the sterilization wastewater treatment mainly is to remove contained SS in the disinfected wastewater, blocks the high pressure cleaning pump that cleans usefulness to prevent SS;
(2) clinical waste percolate 8 and sewage 9 are handled: the clinical waste percolate is the phlegma that produces in the high-temperature steam treatment facility inner chamber; Contain a large amount of high-enriched organics; But the water yield is very little, and sewage mainly is the sewage that medical waste treatment factory produces;
A: pre-treatment:
The clinical waste percolate gets into septic tank 10 through pipeline, and sewage gets into septic tank 10 through pipeline, and clinical waste percolate and sewage mix after getting into septic tank and carry out anaerobic treatment, obtain septic tank effluent; Because the water yield of clinical waste percolate is little, but organic concentration is very high, and the processing rate of anaerobic treatment is certain, need the clinical waste percolate be diluted with sewage before therefore handling, so that subsequent disposal; The clinical waste percolate of present embodiment is the aseptic percolate after handling through the high-temperature steam sterilization process;
B: biochemical treatment:
Septic tank effluent gets into equalizing tank 11, is promoted to contact-oxidation pool 12 through pump and carries out the aerobic biochemical processing, obtains the contact-oxidation pool water outlet; Described equalizing tank has the effect of regulating the water quality and the water yield, handles through catalytic oxidation and can remove the organism in the septic tank effluent; Equalizing tank in the present embodiment also can adopt pump well;
C: precipitation process:
The contact-oxidation pool water outlet gets into settling tank 13, and the precipitating sludge after the settling tank mud-water separation enters sludge sump 14, and the supernatant after settling tank is handled is that the settling tank water outlet gets into wastewater equalization pond;
Water quality before and after clinical waste percolate and the sanitary sewage disposal is seen table 1:
Table 1 clinical waste percolate, sanitary sewage disposal effect (unit; Mg/L)
| ? | COD | BOD | SS | pH | Can biochemical coefficient |
| Septic tank effluent | 243 | 98.3 | 103 | 7.1 | 0.40 |
| The contact-oxidation pool water outlet | 26.9 | 11.3 | 36.3 | 8.2 | \ |
| Clearance % | 88.9 | 88.5 | 64.8 | \ | \ |
(3) workshop waste water 16, settling tank water outlet, elementary rainwater 15 are handled: described workshop waste water is meant that mainly phlegma, the mill floor in the waste gas treatment process washes away waste water, and workshop waste water mainly contains SS, a small amount of dissolved organic matter and thimerosal; Described settling tank water outlet mainly contains the organism that is difficult for biochemical treatment; Mainly contain SS and a small amount of dissolved organic matter in the described elementary rainwater;
A: materialization is handled:
Described workshop waste water, settling tank water outlet, elementary rainwater all are collected into wastewater equalization pond 17; Through pump the waste water in the wastewater equalization pond is promoted to flocculation tank 18, carries out flocculation reaction, quantitatively add flocculation agent in the described flocculation tank; Mixture after the flocculation reaction flows into settling tank 19; Carry out mud-water separation at settling tank, the precipitating sludge of post precipitation enters sludge sump, and supernatant flows into intermediate water tank 20;
B: filtration treatment:
The intermediate water tank water outlet is promoted to filtration unit 21 through pump, carries out filtration treatment, obtains middle water, and middle water is stored to middle water tank 22;
C: disinfect:
Middle water disinfection after the filtration, reuse behind the water reuse standard in reaching; Middle water can be back to use sterilized water through middle grid, can be used for terrace flushing, greening etc.
Middle water through advanced treatment need add the thimerosal disinfection, can reach the middle water quality standard of national regulation, and in the present embodiment, described thimerosal is a Youxiaolin.
The present invention handles respectively different waste water according to the water quality of the different waste water that medical waste treatment factory is produced; To reuse after the disinfected wastewater physical treatment; And clinical waste percolate and sewage are carried out carrying out obtaining middle water after materialization is handled with workshop waste water, elementary rainwater etc. again after the biochemical treatment; Water is back to use sterilization water or greening etc. in resulting, adopts such method of wastewater treatment of handling respectively according to water quality, and one side has solved water resources problem; Save water resources; Save the use of sterilizing agent on the other hand, dispose the working cost of factory thereby saved, and avoided the influence of the sterilizing agent in the disinfected wastewater follow-up WWT.Waste water of the present invention divides matter treatment process equipment simple, and synergy between the processing between the different quality is provided with can rational utilization of water resources.
Present embodiment is the improvement of on the basis of embodiment 1, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 1, embodiment 1 disclosed content should not be repeated in this description as the content of present embodiment here yet.
To embodiment 1 described treatment process, present embodiment also comprises the technological process of filtration unit being carried out back flushing; The waste water that the backwash process of the disinfected wastewater treatment process in the present embodiment produces can enter settling tank, handles with other waste water, recycles, and reaches sewage zero-discharge, also can enter sludge sump.
Present embodiment is the improvement of on the basis of embodiment 1, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 1, embodiment 1 disclosed content should not be repeated in this description as the content of present embodiment here yet.
In the present embodiment, embodiment 1 described elementary rainwater is the rainwater that washes away of medical waste treatment factory collected in initial 15 minutes of the rainfall.Clinical waste mainly comprises: infectious refuse, pathologic refuse, damaging refuse, medicine property refuse, chemical refuse etc.Because clinical waste contains a large amount of bacteriums and organism, so the rainwater of medical waste treatment factory also contains certain organism, therefore need handle the elementary rainwater of medical waste treatment factory, and can not directly enter in the municipal wastewater pipe or direct reuse.
Embodiment 4
Wastewater treatment equipment to above-mentioned medical waste treatment factory wastewater treatment process; Present embodiment adopts the different processes device respectively according to the different sources in the medical waste treatment factory waste water; The wastewater treatment equipment of present embodiment comprises 3 devices, comprises disinfected wastewater treatment unit (one-level physical treatment), clinical waste percolate treatment unit (two stage biological processing) and advanced treatment apparatus (three grades of materializations are handled);
The disinfected wastewater treatment unit is used for handling vehicle and Turnover Box sterilization, cleans and use disinfected wastewater.Described disinfected wastewater treatment unit comprises settling tank and settling pond, filtration unit and the thimerosal storage tank of the reception disinfected wastewater that is linked in sequence; Be provided with overflow weir between settling tank and the settling pond, settling pond is communicated with filtration unit through the submersible pump output tube, and filtration unit is through pipeline connection thimerosal storage tank; The settling tank of said thimerosal waste water is a vertical sedimentation basin; The settling tank of said reception thimerosal waste water is a vertical sedimentation basin; In settling tank, be provided with an open vertical tube up and down; Said thimerosal waste water flows to vertical tube, and the lower open mouth downside of vertical tube is provided with a reflector, the last uncovered overflow crest of weir that is communicated with settling pond from settling tank that is higher than of vertical tube;
Clinical waste percolate treatment unit is used for handling clinical waste percolate and sewage.Described clinical waste percolate treatment unit comprises the collection clinical waste percolate that is linked in sequence and septic tank, equalizing tank, contact-oxidation pool, settling tank and the sludge sump of medical waste treatment field sewage; In septic tank, be provided with the plastics ball filler; Septic tank is communicated with equalizing tank through overflow weir; Between equalizing tank and settling tank, be provided with a contact-oxidation pool, be provided with submersible pump in the said equalizing tank, the output tube of submersible pump is connected to contact-oxidation pool; Contact-oxidation pool is communicated with settling tank through overflow weir, and settling tank connects sludge sump; Equalizing tank in the present embodiment also can be a pump well;
Said advanced treatment apparatus is used for treatment plant waste water, settling tank water outlet and elementary rainwater, and described advanced treatment apparatus comprises the wastewater equalization pond that is linked in sequence, flocculation tank, settling tank, intermediate water tank, filtration unit and the middle water tank that adds flocculation agent; Described advanced treatment apparatus is the Integrated Processing Unit that workshop waste water, settling tank water outlet, elementary rainwater are handled;
Settling tank in the said clinical waste percolate treatment unit is communicated with the wastewater equalization pond of advanced treatment apparatus through overflow weir.
In order the middle water after the advanced treatment to be reached the middle water reuse standard of national regulation, need the centering water tank to add thimerosal, described middle water tank also connects a pipeline that adds thimerosal; In addition, because the water yield of medical waste treatment factory waste water is less, therefore for the lasting use of water in guaranteeing, described middle water tank also connects running water pipe, on the pipeline that connects tap water, tap water moisturizing SV is set.Like this, if when the liquid level of middle water tank is lower than certain liquid level, can adopt the tap water moisturizing.
The medical waste treatment factory general water yield of waste water is less, so the scale of wastewater treatment equipment is generally less.In order to reduce the investment operation cost, treatment unit of the present invention adopts the mode of liquidometer, pressure warning unit and equipment linkage.In the disinfected wastewater treatment unit; Be provided with liquidometer in settling pond and the thimerosal storage tank, the liquidometer of settling pond and the submersible pump of settling pond and the interlock of thimerosal volume pump are when the liquid level of settling pond is lower than the setting liquid level; Submersible pump stops, and the thimerosal volume pump stops; When the liquid level of settling pond was higher than the setting liquid level, submersible pump started, and the thimerosal volume pump starts.
In the clinical waste percolate treatment unit, be provided with liquidometer at described equalizing tank or pump well, when the equalizing tank liquid level was lower than certain liquid level, the submersible pump in the equalizing tank stopped, and when the equalizing tank liquid level was higher than certain liquid level, the submersible pump in the equalizing tank started.
In the advanced treatment apparatus; Wastewater equalization pond, intermediate water tank and middle water tank are provided with liquidometer; Wastewater equalization pond is provided with submersible pump, and flocculation tank is provided with the dosing volume pump, and intermediate water tank is provided with the pressure filtration pump; Middle water tank is provided with the sterilization volume pump, and middle water tank also is connected with the variable frequency water supply pump makes middle water be delivered to middle water lines; When the liquid level of wastewater equalization pond was lower than minimum liquid level, the submersible pump of wastewater equalization pond stopped, and the dosing volume pump stops, and when the liquid level of wastewater equalization pond was higher than certain liquid level, the submersible pump of wastewater equalization pond started, and the dosing volume pump starts; When the intermediate water tank liquid level is lower than certain liquid level; The pressure filtration pump stops, and the sterilization volume pump of middle water tank stops, when the intermediate water tank liquid level is higher than certain liquid level; The pressure filtration pump startup; In the sterilization volume pump of water tank start, when the intermediate water tank liquid level was higher than the highest liquid level, the submersible pump of wastewater equalization pond stopped; In the middle of the liquid level of water tank when being lower than minimum liquid level, the variable frequency water supply pump stops, when the liquid level of central water tank is higher than certain liquid level, the variable frequency water supply pump startup, when the liquid level of central water tank was higher than the highest liquid level, the pressure filtration pump stopped.
Present embodiment is the improvement of on the basis of embodiment 4, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 4, embodiment 4 disclosed contents should not be repeated in this description as the content of present embodiment here yet.
To embodiment 4 described filtration units, the filtration unit of present embodiment is placed in-line deep bed filter in front and back and laminated filter.Series connection sets gradually before and after described deep bed filter and the laminated filter, and waste water is introduced into deep bed filter, gets into laminated filter then; Can be according to the model of concrete process choice deep bed filter and laminated filter.In the disinfected wastewater filtration treatment step, clarification disinfecting waste water is introduced into the bag type filtering apparatus, obtains preliminary filter-sterilized waste water; Preliminary filter-sterilized waste water gets into laminated filter through pipeline, obtains filter-sterilized waste water; Waste water, settling tank water outlet, elementary rainwater are handled in the filtration treatment between disinfecting car, and the intermediate water tank water outlet is introduced into the bag type filtering apparatus, water in tentatively being filtered; Water gets into laminated filter through pipeline in preliminary the filtration, obtains middle water.Can select the model of deep bed filter and laminated filter according to the water yield of medical waste treatment factory sewage.
In the present embodiment, described deep bed filter is 50 microns deep bed filter, and described laminated filter is 0.45 micron laminated filter.
Present embodiment is the improvement of on the basis of embodiment 4, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 4, embodiment 4 disclosed contents should not be repeated in this description as the content of present embodiment here yet.
In the present embodiment; Embodiment 4 described contact-oxidation pools include the pond body; Be provided with semi soft packing at the pond body between at the bottom of the suitable for reading and pond, the sewage outlet of said submersible pump output tube is arranged under the semi soft packing, under semi soft packing, also is provided with jet aerator.
In the present embodiment, said semi soft packing is made up of the plastic deeping of a plurality of permutation and combination, and 3 centimetres of perpendicular separations, left and right horizontal are separated continuously up and down between the said net sheet arranges.
Present embodiment is the improvement of on the basis of embodiment 4, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 4, embodiment 4 disclosed contents should not be repeated in this description as the content of present embodiment here yet.
In the present embodiment, embodiment 4 described thimerosal storage tanks also connect a thimerosal storage tank.Disinfected wastewater is back to the thimerosal storage tank after handling, and adds thimerosal through the thimerosal storage tank and makes the thimerosal in the thimerosal storage tank keep certain concentration promptly to can be recycled.In the present embodiment, described thimerosal is a Youxiaolin.
In addition, water lines was in order to replenish the middle water 7 from middle water tank during thimerosal storage tank of the present invention also connected, and described middle water lines is provided with the moisturizing SV.Be provided with liquidometer in the thimerosal storage tank, when the liquid level of thimerosal storage tank was lower than minimum liquid level, the thimerosal volume pump started, the moisturizing valve opening solenoid; When the liquid level of thimerosal storage tank was higher than normal liquid level, the thimerosal volume pump stopped, and the moisturizing SV closes; When the liquid level of thimerosal storage tank was higher than the highest liquid level, the submersible pump in the settling pond stopped.
Embodiment 8
Present embodiment is the improvement of on the basis of embodiment 4, carrying out; The part identical in the present embodiment with embodiment 1; Please understand with reference to disclosed content among the embodiment 4, embodiment 4 disclosed contents should not be repeated in this description as the content of present embodiment here yet.
In the present embodiment; Embodiment 4 described composite wastewater treatment unit also comprise an elementary rain collector; Said elementary rain collector comprises the rainwater receiving tank, and said rainwater receiving tank connects an elementary rainwater set in the medical waste treatment field through pipe connecting and collects well, and elementary rainwater is collected in the well and under the mouth of pipe of said pipe connecting, is provided with an elementary rainwater collection tube; Collection tube is provided with electrically operated valve, and a timing controller is connected to electrically operated valve; Elementary rainwater collection tube is connected to wastewater equalization pond.
Claims (10)
1. the treatment process of a medical waste treatment factory waste water; Comprise vehicle and Turnover Box sterilization, clean processing with disinfected wastewater, clinical waste percolate, sewage, elementary rainwater and workshop waste water; It is characterized in that: described treatment process is handled respectively various waste water, comprises the sterilization of vehicle and Turnover Box, cleans processing with disinfected wastewater, to the processing of clinical waste percolate, sewage with to the processing of elementary rainwater and workshop waste water:
(1) vehicle and Turnover Box sterilization, cleaning are handled with disinfected wastewater:
A: disinfected wastewater pre-treatment:
Disinfected wastewater carries out precipitation process; Described disinfected wastewater flows to settling tank through pipeline, obtains the preliminary sedimentation disinfected wastewater, and preliminary sedimentation waste water to settling pond, obtains clarification disinfecting waste water through the overflow weir overflow;
B: disinfected wastewater filtration treatment:
Clarification disinfecting waste water gets into filtration unit, carries out filtration treatment, obtains filter-sterilized waste water;
C: disinfected wastewater reuse:
Filter-sterilized waste water is back to the thimerosal storage tank through pipeline, behind the additional thimerosal, recycles;
(2) clinical waste percolate and sanitary sewage disposal:
A: pre-treatment:
The clinical waste percolate gets into septic tank through pipeline, and sewage gets into septic tank through pipeline, and clinical waste percolate and sewage are in the septic tank mixing and carry out anaerobic treatment, obtain septic tank effluent;
B: biochemical treatment:
Septic tank effluent gets into equalizing tank, is promoted to contact-oxidation pool through pump and carries out the aerobic biochemical processing, obtains the contact-oxidation pool water outlet;
C: precipitation process:
The contact-oxidation pool water outlet gets into settling tank, and the precipitating sludge after the settling tank mud-water separation enters sludge sump, and the supernatant after settling tank is handled is that the settling tank water outlet gets into wastewater equalization pond;
(3) workshop waste water, settling tank water outlet, elementary rainwater are handled:
A: materialization is handled:
Described workshop waste water, settling tank water outlet, elementary rainwater all are collected into wastewater equalization pond; Through pump the waste water in the wastewater equalization pond is promoted to flocculation tank, carries out flocculation reaction, quantitatively add flocculation agent in the described flocculation tank; Mixture after the flocculation reaction flows into settling tank; Carry out mud-water separation at settling tank, the mud of post precipitation enters sludge thickener, and supernatant flows into intermediate water tank;
B: filtration treatment:
The intermediate water tank water outlet is promoted to filtration unit through pump, obtains middle water, and middle water is stored to middle water tank;
C: disinfect:
Middle water disinfection after the filtration, water reuse standard in reaching.
2. the technology of processing medical waste treatment according to claim 1 factory waste water, it is characterized in that: described treatment process also comprises the technological process of filtration unit being carried out back flushing.
3. the technology of processing medical waste treatment according to claim 1 factory waste water is characterized in that: described elementary rainwater is the rainwater that washes away of medical waste treatment factory collected in initial 15 minutes of the rainfall.
4. a wastewater treatment equipment of realizing the said technology of claim 1 comprises disinfected wastewater treatment unit, clinical waste percolate treatment unit and advanced treatment apparatus, it is characterized in that:
Said disinfected wastewater treatment unit: the settling tank and settling pond, filtration unit and the thimerosal storage tank that comprise the reception disinfected wastewater that is linked in sequence; Be provided with overflow weir between settling tank and the settling pond, settling pond is communicated with filtration unit through the submersible pump output tube, and filtration unit is through pipeline connection thimerosal storage tank, and the settling tank of said thimerosal waste water is a vertical sedimentation basin;
Said clinical waste percolate treatment unit: comprise the collection clinical waste percolate that is linked in sequence and septic tank, equalizing tank, contact-oxidation pool, settling tank and the sludge sump of sewage; In septic tank, be provided with the plastics ball filler; Septic tank is communicated with equalizing tank through overflow weir; Between equalizing tank and settling tank, be provided with a contact-oxidation pool, be provided with submersible pump in the said equalizing tank, the output tube of submersible pump is connected to contact-oxidation pool; Contact-oxidation pool is communicated with settling tank through overflow weir, and settling tank connects sludge sump;
Said advanced treatment apparatus: comprise the wastewater equalization pond that is linked in sequence, flocculation tank, settling tank, filtration unit, the middle water tank that adds flocculation agent; Described advanced treatment apparatus is the Integrated Processing Unit that sterilization workshop waste water, settling tank water outlet, elementary rainwater are handled;
Settling tank in the said clinical waste percolate treatment unit is communicated with the wastewater equalization pond of degree of depth device through overflow weir.
5. wastewater treatment equipment according to claim 4 is characterized in that: described filtration unit is placed in-line deep bed filter in front and back and laminated filter.
6. wastewater treatment equipment according to claim 5 is characterized in that: described deep bed filter is 50 microns deep bed filter, and described laminated filter is 0.45 micron laminated filter.
7. wastewater treatment equipment according to claim 4; It is characterized in that: said contact-oxidation pool includes the pond body; Be provided with semi soft packing at the pond body between at the bottom of the suitable for reading and pond; The sewage outlet of said submersible pump output tube is arranged under the semi soft packing, under semi soft packing, also is provided with jet aerator.
8. wastewater treatment equipment according to claim 7 is characterized in that: said semi soft packing is made up of the plastic deeping of a plurality of permutation and combination, and 3 centimetres of perpendicular separations, left and right horizontal are separated continuously up and down between the said net sheet arranges.
9. wastewater treatment equipment according to claim 4 is characterized in that: described thimerosal storage tank also connects a thimerosal storage tank.
10. wastewater treatment equipment according to claim 4; It is characterized in that: described composite wastewater treatment unit also comprises an elementary rain collector; Said elementary rain collector comprises the rainwater receiving tank; Said rainwater receiving tank connects an elementary rainwater set in the medical waste treatment field through pipe connecting and collects well; Elementary rainwater is collected in the well and under the mouth of pipe of said pipe connecting, is provided with an elementary rainwater collection tube, and collection tube is provided with electrically operated valve, and a timing controller is connected to electrically operated valve; Elementary rainwater collection tube is connected to wastewater equalization pond.
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| CN111678217A (en) * | 2020-06-22 | 2020-09-18 | 北京大平咏道营销策划有限公司 | Disinfectant atomization internal circulation air disinfection equipment and disinfection process |
| CN112919677A (en) * | 2021-01-28 | 2021-06-08 | 山东京恒巨邦智能装备有限公司 | Intelligent sewage treatment cloud system |
| CN114873777A (en) * | 2022-04-25 | 2022-08-09 | 杭州临江环境能源有限公司 | Comprehensive sewage treatment system containing medical wastewater and sewage treatment process |
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