CN103319056A - Hospital sewage treatment system - Google Patents

Hospital sewage treatment system Download PDF

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Publication number
CN103319056A
CN103319056A CN2013102986326A CN201310298632A CN103319056A CN 103319056 A CN103319056 A CN 103319056A CN 2013102986326 A CN2013102986326 A CN 2013102986326A CN 201310298632 A CN201310298632 A CN 201310298632A CN 103319056 A CN103319056 A CN 103319056A
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China
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water
pond
tank
communicated
pipeline
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CN2013102986326A
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CN103319056B (en
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印显东
罗承毅
彭娅月
张志鹏
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CHONGQING TAIKE ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
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CHONGQING TAIKE ENVIRONMENTAL PROTECTION ENGINEERING EQUIPMENT Co Ltd
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Priority to CN201310298632.6A priority Critical patent/CN103319056B/en
Publication of CN103319056A publication Critical patent/CN103319056A/en
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Abstract

The invention discloses a hospital sewage treatment system which comprises a grating well, a pre-disinfecting tank, a septic tank, a pre-aeration adjusting tank, an anoxic tank, a bio-contact oxidation tank, a vertical flow sedimentation tank, a quantitative tank, a purifier, a contact disinfecting tank and a dechlorination tank which are arranged in the sewage flow direction and communicate with each other through pipelines. The grating well communicates with a hospital sewage drainpipe. Processed hospital sewage passes through the dechlorination tank and is then discharged. The system provided by the invention has high degree of automation, is convenient to manage, and is adopted to reduce operating personnel. In comparison with a traditional sewage station management system, the system provided by the invention has the following advantages: energy is saved; operation time is reduced; work schedule of personnel and labor intensity are decreased; the purifying effect is good; and emission targets after processing reaches the national emission standard.

Description

A kind of hospital sewage disposal system
Technical field
The present invention relates to technical field of sewage, be specifically related to a kind of hospital sewage disposal system.
Background technology
Hospital sewage is generally by forming from the sewage that comprises place dischargings such as ward, clinic, laboratory, laboratory, dining room, bathroom, toilet, reagent chamber, laundry, in the sewage except containing a large amount of germs, virus, parasite and chemical agent, also contain many organic and inorganic pollutents, as pollutents such as various medicines, sterilizing agents, composition comparatively complexity has the feature of space-pollution, acute infection and latent infection.If contain the hospital sewage of pathogenic micro-organism, below standard without sterilization, and directly enter water body, can cause comparatively serious pollution to waters and soil etc. on every side, cause various diseases and transmissible disease, the serious harm people's is healthy.
Country specifies sewage discharge strict emission control standards, the sewage discharge of present most hospitals does not all reach national standard, traditional technology is handled hospital sewage, be that hospital sewage is directly entered sterilization pool through grid pond, equalizing tank, behind disinfection by chlorine dioxide, enter underwater pipeline, utilize this method to handle hospital sewage, though processing method is simple, easy to operate, but the sewage after handling does not reach state emission standard, can pollute water source or soil; After sterilization pool utilizes disinfection by chlorine dioxide, also can cause secondary pollution to the water source; The mud that produces in sewage treatment process also needs to carry out individual curing.And traditional sewage treatment process can not effectively remove organic pollutant, malignant bacteria pollutent in the sewage,
The shortcoming of prior art is: existing hospital sewage disposal system, and structure and technology are too simple, and is not thorough to the processing of sewage, cause discharging not up to standard, and existing sewage disposal level of automation is low, and management is inconvenient, and hand labor intensity is bigger.
Summary of the invention
The object of the present invention is to provide a kind of hospital sewage disposal system, make the sewage purification treatment effect good, can not cause secondary pollution, realize qualified discharge.
For achieving the above object, technical scheme of the present invention is as follows: a kind of hospital sewage disposal system, comprise by effluent stream to the grille well by pipeline connection successively, pre-sterilization pool, septic tank, preaeration equalizing tank, anoxic pond, biological contact oxidation pond, vertical sedimentation tank, quantitatively pond, purifier, disinfecting tank, dechlorination pond, described grille well is communicated with the hospital sewage drainage pipeline, and the hospital sewage after the processing is discharged behind the dechlorination pond.
Adopt said structure, the water-in of the water outlet of upper level device and next stage device is by pipeline connection, and namely the water-in of grille well is communicated with the hospital sewage drainage pipeline, and the water outlet of grille well is communicated with the water-in of pre-sterilization pool, connects successively then.
The foreign material that contain in the hospital sewage are very many and complicated, bigger to the subsequent disposal influence, grille well can prevent that the pipeline valve of aftertreatment device and water pump from stopping up, guarantee the unimpeded of pipeline and treatment facility, and the organic loading of reduction aftertreatment device, the sewage gravity flow enters grid, and after the artificial removing of the foreign material that are trapped, regular and other rubbish, mud outward transport are handled; At infection ward of hospital etc. pre-sterilization pool is set, the sewage that infects discharges such as ward need be through merging processing with other sewage after the sterilization in early stage again, pre-sterilization pool also can be arranged on water port such as infecting the ward separately, and then be communicated with septic tank, namely other waste water of hospital can be disinfected without early stage.
Septic tank is earlier the organic solid pollutent to be held back by the effect of precipitation, and the effect of passing through anaerobion alleviates the operating load of subsequent disposal facility with organic matter degradation then, reduces the volume of handling structures and the expense of reducing investment outlay.
Because the malconformation of hospital wastewater, waste water is regulated water quality and quantity through entering the preaeration equalizing tank behind the anaerobic reaction, carries out preaeration simultaneously in the pond, and suspended substance in the further sedimentation water, is conducive to the normal steady running of subsequent disposal facility.
Pretreated sewage enters anoxic pond, and the acidication bacterium that grows in the pond changes into micromolecular organism with the larger molecular organics in the water, is convenient to follow-up aerobic treatment, specifically reacts as follows:
Hydrolysis stage: macromolecular substance is degraded to small-molecule substance, and solid matter is degraded to soluble substance.The acidication bacterium mainly is made of some fungies, mould, these bacteriums have the ability of very strong tolerance adverse environment condition, therefore can play good Degradation to some difficult materials such as materials such as washing powder, microbiotic in the water, avoid subsequent technique is impacted.
Souring stage: acidification bacteria utilizes the carbohydrate of aforementioned generation to synthesize the littler organic acid of molecular weight, is convenient to subsequent treatment process.Because whole acidication stage hydraulic detention time is shorter, and methanogenic preceding two stages of anaerobism have just taken place, therefore can not produce obnoxious flavour.
In biological contact oxidation pond, drop into biologic packing material, the microporous membrane aeration head is installed in the pond, is blasted air by blower fan, bacterium at filler along with biofilm is grown, organism in the water is become mud and inorganic gas such as CO2 by microbiological degradation, thereby reaches organic purpose in the degradation water.Aging microbial film comes off automatically, and namely the microbial film of internal layer is owing to can not get nutrient and oxygen and death, and coming off becomes mud, and this mud is more stable than the mud of general aerobic generation, free settling, and amount lacks, and this is one of the advantage of catalytic oxidation just; Filler provides carrier for the growth of biology, biological a large amount of breeding growths on filler, because aeration has been kept its high reactivity, by organic pollution materials in the absorption sewage, and be transformed into the idiotrophic material, finally with the sludge form precipitate and separate, biological contact oxidation pond can arrange two-stage, by two stages for the treatment of, the organism in the more effective removal waste water of energy improves its effluent quality.
The biological contact oxidation pond water outlet enters vertical sedimentation tank, and mounting center water inlet pipe, discharging device in the vertical sedimentation tank, sewage are to the upper reaches through reflector downwards and flow to water leg after the center water inlet pipe flows into, and flow out from water outlet then, and mud sinks to sludge bucket.Mud precipitate and separate in vertical sedimentation tank that biological contact oxidation pond produces, clear water enters quantitative pond, and the mud in the vertical sedimentation tank promotes by air-lift device and is back to biological contact oxidation pond, and excess sludge enters sludge sump.
Quantitatively in the pond lift pump being installed, waste water is risen to purifier, the operation of liquid level float ball device control water pump is installed at Chi Tizhong simultaneously, move automatically when guaranteeing waste water lift pump high-water, stop during low-water level.
Fillers such as gac, quartz sand are installed in purifier, further suspended substance, organism and heavy metal ion etc. in the filtering waste water make that germ loses carrier in the waste water, are conducive to sterilization more, also can reduce simultaneously the content of suspended substance in the waste water, satisfy the requirement of new standard.
Sewage after the purification flows into disinfecting tank, drops into sterilizing agent at the mouth piece place, through the water pump intense mixing.The moment that sterilizing agent is added to the water must with the water intense mixing, allow available chlorine contact with bacterium, effect could be good, otherwise disinfectant consumption does not have due sterilisation effect greatly on the contrary, thereby pump handle waste water and medicament suck simultaneously and play intensively mixed purpose.Disinfecting tank is the reaction of waterpower baffling, adds the sewage of sterilizing agent, kill bacteria in the residence time of setting.
Sewage behind the adding sterilizing agent, after bacterium was killed, also remaining in the water had partly free chlorine, and free chlorine mainly is that fish are caused great harm mainly to the biology in the water, so before the discharge of wastewater, must be through the dechlorination operation.Quantitatively adding chemical dechlorinating agent such as Sulfothiorine in the pond, and with sewage mixings dechlorination, this reaction comparatively fast, the dechlorination pond is little, the water after the dechlorination can enter the realization qualified discharge, prevents secondary pollution.
Described purifier bottom arranges water-in, the middle part is provided with gac or quartz sand filler, top sets out the mouth of a river, this purifier bottom also is provided with discharge outlet, the water-in of described purifier is communicated with by the water outlet of pipeline with quantitative pond, and the water-in that goes out of this purifier is communicated with the water-in of disinfecting tank.
Fillers such as gac, quartz sand are installed in this purifier, suspended substance, organism and heavy metal ion etc. in the further filtering waste water, make that germ loses carrier in the waste water, be conducive to sterilization more, also can reduce simultaneously the content of suspended substance in the waste water, satisfy the requirement of new standard, purifier top can also arrange the recoil water out, and be communicated with water reuse in the realization with the preaeration equalizing tank.
Described vertical sedimentation tank comprises pond body, water-in and water outlet, body bottom, described pond is provided with sludge bucket, this body top, pond is provided with water leg, described water outlet is communicated with this water leg, the top of sludge bucket is provided with water distributing pipe in the body of described pond, this water distributing pipe is communicated with described water-in, and described water distributing pipe is gradually big ring texture of from-inner-to-outer ring footpath, and is provided with the limbers on the interior outboard tube wall of this water distributing pipe.
Adopt said structure, sewage is in water-in flows into water distributing pipe, water distributing pipe curls to interior in horizontal plane, the ring texture that increases gradually to external loop diameter in serving as reasons, shape in the shape of a spiral namely curls, sewage is in water distributing pipe, flow out limbers on the outer side wall, the water that flows out in the limbers on limbers on the outer side wall of water distributing pipe inner ring and the inner side-wall of outer ring forms and liquidates, homogeneous radiation, and sedimentation downwards gradually, make even water distribution, flow velocity is little, streamflow regime is stable, has reduced the interference to the settling region in the decline precipitation process, makes sedimentation effect good, after adopting the water distributing pipe of said structure, the settling tank internal diameter can reach 8~23m, and the height of settling tank can be accomplished to be applicable to big-and-middle-sized sewage works about 6m.Limbers on limbers on the outer side wall of this water distributing pipe inner ring and the inner side-wall of outer ring can be oppositely arranged, and also can stagger.
Described water leg comprises peripheral water leg and center water leg, described peripheral water leg is positioned at body upper end, pond, be connected with pond body inwall, described center water leg is positioned at peripheral water leg and communicates with peripheral water leg, this center water leg is cruciform or strip structure, described water distributing pipe top also is provided with reflector, and this reflector is taper, and the top is connected with water leg lower end, center by vertical support; Be provided with shore pipe in the body of described pond, this shore pipe lower end is positioned at sludge bucket, and the upper end protrudes upward the pond body, and this shore pipe sidewall also is connected with the air lift arm, and this air lift arm is provided with magnetic valve.
Adopt said structure, the water that flows out in the water distributing pipe can reduce its flow velocity through reflector interception and the buffering of top, the suspended particle of majority etc. can be tackled in the reflector below simultaneously, is conducive to the precipitate and separate of suspended substance.Water outlet is finished by peripheral water leg and center water leg and is catchmented, and buffering excessively flows out by water outlet in water leg, and water outlet all even flow velocity is less, guarantees the water outlet velocity-stabilization, reduces the influence that precipitation is produced; Reflector is downward opening taper, and this reflector top is connected with water leg lower end, center by the support that vertically arranges, and has the gap between this reflector edge and the pond body inwall.Be convenient to slow down the current lift velocity, it is better that precipitation was descended, the circular cone drift angle of reflector can be 160 °, described limbers is uniform along the length direction of water distributing pipe, mud precipitate and separate in vertical sedimentation tank that biological contact oxidation pond produces, clear water enters quantitative pond, and the mud in the vertical sedimentation tank promotes by air-lift device and is back to biological contact oxidation pond, and excess sludge enters sludge sump.
Also comprise blower fan, described blower fan air feed outlet is connected with air main, be connected with two branch wind pipes on this air main, two described branch wind pipes are communicated with the aeration webmaster that is arranged on preaeration equalizing tank and biological contact oxidation pond bottom respectively, be provided with gate valve on described air main and the branch wind pipe, described air lift arm is communicated with air main.
Blower fan provides air by air main and branch wind pipe for preaeration equalizing tank and biological contact oxidation pond, and blower fan provides power by the air lift arm for the mud air-lift device in the vertical sedimentation tank, and the mud air-lift device can be made by engineering plastics, and is corrosion-resistant, and the life-span is long; Unique big latus rectum design more can prevent from stopping up than water pump; Rely on the blower fan overbottom pressure as power, save energy consumption; Rely on the electrical ball valve control extracting time, move more flexible, the level of automation height, the extracting of assurance mud is clean, prevents deposition; And inner no mechanical moving parts, the maintenance free trouble.
Also comprise sludge sump, this sludge sump is communicated with the shore pipe of described vertical sedimentation tank by pipeline, and this shore pipe also is communicated with described anoxic pond and biological contact oxidation pond.
On the shore pipe of vertical sedimentation tank and the pipeline that sludge sump, anoxic pond and biological contact oxidation pond are communicated with gate valve is set respectively, be convenient to control break-make, for effectively removing the phosphorus in the biological contact oxidation pond, regularly vertical sedimentation tank bottom mud is back to the aeration tank, is decomposing absorption pollution substance phosphorus by aerobic bacteria.In the vertical sedimentation tank surplus sludge volume seldom, mud is stable, can accumulate in for a long time in the sludge sump, only need regularly clear convenient management.
Also comprise chlorine dioxide generator, described chlorine dioxide generator is communicated with pre-sterilization pool and disinfecting tank respectively by pipeline, for pre-sterilization pool and disinfecting tank provide dioxide peroxide to carry out disinfection, chlorine dioxide generator is provided with ball valve with the pipeline that sterilization pool in advance is connected with disinfecting tank.
By chlorine dioxide generator is set, for pre-sterilization pool and disinfecting tank provide sterilizing agent, can control by automatization, realize adding at regular time and quantity, reduce hand labor intensity, dioxide peroxide has the function of high-efficient oxidant, sterilizing agent and SYNTHETIC OPTICAL WHITNER; As strengthening oxygenant, there is not organic chloride in the product of its institute's oxidation; As sterilizing agent, it has the sterilisation effect of broad spectrum, and sterilization effect is good, throws in simply, not influenced by PH.
Also be provided with sampling well, the water outlet in described dechlorination pond is communicated with the water-in of sampling well, and the water outlet of described sampling well is communicated with the municipal drainage system.
Whether sampling well is set is convenient to detect up to standard to the sewage sampling after handling.
Also be provided with Scatula and dechlorinating agent medicine-chest, described Scatula is provided with dechlorinating agent entrance and dechlorinating agent outlet, described dechlorinating agent outlet is communicated with the dechlorinating agent medicine-chest by the road, the outlet of this dechlorinating agent medicine-chest is communicated with the dechlorination pond by pipeline, Scatula is provided with ball valve with the pipeline that the dechlorinating agent medicine-chest is connected, and the dechlorinating agent medicine-chest is provided with magnetic valve with the pipeline that the dechlorination pond is connected.
Prepare dechlorinating agent by Scatula, send into the dechlorinating agent medicine-chest through pipeline, the dechlorinating agent medicine-chest provides dechlorinating agent to the dechlorination pond, can be by control dechlorinating agent medicine-chest, the add-on of control dechlorinating agent and add pitch time, be convenient to automatic management, reduce hand labor intensity, the break-make of ball valve and solenoid control pipeline.
Also be provided with the flocculation agent medicine-chest, this flocculation agent medicine-chest and described quantitative pond are by pipeline connection, and the flocculation agent medicine-chest is provided with magnetic valve with the pipeline that quantitative pond is connected.
In quantitative pond, add flocculation agent by the flocculation agent medicine-chest, be convenient to management and control automatically, can be by the break-make of its pipeline of solenoid control.
Can also establish the pre-treatment that collection device carries out waste water at dentistry Sewage outlet, photo lab Sewage outlet and laboratory Sewage outlet as required, guarantee the heavy metal ions in wastewater qualified discharge, handle water outlet and enter septic tank; Increase the decay pond at radiology department's Sewage outlet, guarantee that radioactive indicator back water outlet up to standard enters septic tank in the waste water, water outlet increases pre-sterilizing unit in the sick section of infection, and the transmissible disease waste water after sterilization enters septic tank.
The invention has the beneficial effects as follows: the level of automation height, be convenient to management, reduce operator, compare with traditional sewage plant management system, have energy-conservationly, reduce working time, advantages such as minimizing personnel order of classes or grades at school and labour intensity, good purification is handled the back discharge index and is reached discharging standards.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 is wastewater treatment process figure of the present invention;
Fig. 3 is the structural representation of vertical sedimentation tank among the present invention;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of water distributing pipe.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of hospital sewage disposal system, comprise by effluent stream to the grille well 1 that passes through pipeline connection successively, pre-sterilization pool 2, septic tank 3, preaeration equalizing tank 4, anoxic pond 5, biological contact oxidation pond 6, vertical sedimentation tank 7, quantitative pond 8, purifier 9, disinfecting tank 10, dechlorination pond 11, sampling well 15, described grille well 1 is communicated with the hospital sewage drainage pipeline, hospital sewage after the processing enters sampling well 15 behind dechlorination pond 11, the water outlet of sampling well 15 is communicated with the municipal drainage system, quantitatively discharging.
Extremely shown in Figure 5 as Fig. 3, vertical sedimentation tank 7 comprises round shape pond body 71, water-in 72 and water outlet 73, body 71 bottoms, described pond are provided with sludge bucket 74, these pond body 71 upper ends are provided with peripheral water leg 78 and are criss-cross center water leg 79, periphery water leg 78 is connected with pond body 71 inwalls, described center water leg 79 is positioned at peripheral water leg 78 and communicates with peripheral water leg 79, water outlet 73 is communicated with peripheral water leg 78, the top of sludge bucket 74 is provided with water distributing pipe 75 in the described pond body 71, this water distributing pipe 75 is communicated with water-in 72 by vertical vertical tube 712, described water distributing pipe 75 is gradually big ring texture of from-inner-to-outer ring footpath, in horizontal plane to the interior shape in the shape of a spiral that curls, water distributing pipe 75 outer rings and pond body 71 inwalls are fitted, and in this water distributing pipe 75, be provided with the limbers on the tube wall of the outside, this limbers is uniform along the length direction of water distributing pipe 75.
Water distributing pipe 75 tops are provided with reflector 76, and this reflector 76 is taper, opening down, and these reflector 76 tops are connected with center water leg 79 lower ends by the support 77 that vertically arranges, and have the gap between these reflector 76 edges and pond body 71 inwalls; Be provided with shore pipe 710 in the described pond body 71, this shore pipe 710 is near pond body 1 inwall, and these shore pipe 710 lower ends are positioned at sludge bucket 74, and the upper end protrudes upward pond body 71, these shore pipe 710 sidewalls also are connected with air lift arm 711, and this air lift arm 711 is provided with magnetic valve.
Arrow direction indication shown in Figure 5 is the flow direction of sewage after flow out the limbers of water distributing pipe 75, the water that flows out in the limbers on limbers on the outer side wall of water distributing pipe 75 inner rings and the inner side-wall of outer ring forms and liquidates, homogeneous radiation, and sedimentation downwards gradually, make even water distribution, flow velocity little, reduced the interference to the settling region; Upwards the water that flows is through reflector 76 interceptions and the buffering of water distributing pipe 75 tops, can reduce its flow velocity, the suspended particle of majority etc. can be tackled in reflector 76 belows simultaneously, the precipitate and separate that is conducive to suspended substance, the inflow water leg that catchments on top, current are further cushioned, water outlet flowing water speed is reduced, reduce the interference to precipitation, this vertical sedimentation basin reasonable in design, even water distribution, the Inlet and outlet water flow velocity is little, streamflow regime is stable, sedimentation effect is fine, there are not short circuit and dead band, the capacity utilization height of settling tank, and have higher surface load; Break through the little restriction in footpath, traditional vertical sedimentation basin pond, can when guaranteeing that sedimentation effect is good, make the bigger settling tank of diameter.
As shown in Figure 1, the shore pipe 710 of described vertical sedimentation tank 7 is by pipeline connection sludge sump 13, this shore pipe 710 also is communicated with described anoxic pond 5 and biological contact oxidation pond 6, sludge part in the vertical sedimentation tank is back to anoxic pond 5 and biological contact oxidation pond 6, remainder flows into sludge sump 13, regularly clears.
Further as shown in Figure 1, also comprise blower fan 12, chlorine dioxide generator 14, Scatula 16, dechlorinating agent medicine-chest 17 and flocculation agent medicine-chest 18, described blower fan 12 air feeds outlet is connected with air main, be connected with two branch wind pipes and an air lift arm on this air main, two described branch wind pipes are communicated with the aeration webmaster that is arranged on preaeration equalizing tank 4 and biological contact oxidation pond 6 bottoms respectively, be provided with gate valve on described air main and the branch wind pipe, described air lift arm is communicated with the shore pipe of vertical sedimentation tank 7, and this air lift arm is provided with magnetic valve.
Chlorine dioxide generator 14 is communicated with pre-sterilization pool 2 and disinfecting tank 10 respectively by pipeline, for pre-sterilization pool 2 and disinfecting tank 10 provide dioxide peroxide to carry out disinfection, chlorine dioxide generator 14 is provided with ball valve with sterilization pool 2 in advance with the pipeline that disinfecting tank 10 is connected.
Scatula 16 is provided with dechlorinating agent entrance and dechlorinating agent outlet, described dechlorinating agent outlet is communicated with dechlorinating agent medicine-chest 17 by the road, the outlet of this dechlorinating agent medicine-chest 17 is communicated with dechlorination pond 11 by pipeline, be used for adding dechlorinating agent, Scatula 16 is provided with ball valve with the pipeline that dechlorinating agent medicine-chest 17 is connected, and dechlorinating agent medicine-chest 17 is provided with magnetic valve with the pipeline that dechlorination pond 11 is connected.
Flocculation agent medicine-chest 18 passes through pipeline connection with described quantitative pond 8, and flocculation agent medicine-chest 18 is provided with magnetic valve with the pipeline that quantitative pond 8 is connected, and can be convenient to control and management by flocculation agent medicine-chest 18 to quantitative pond 8 interpolation flocculation agent at regular time and quantity.
Described purifier 9 bottoms arrange water-in, the middle part is provided with gac or quartz sand filler, top sets out the mouth of a river, these purifier 9 bottoms also are provided with discharge outlet, the water-in of described purifier 9 is communicated with by the water outlet of pipeline with quantitative pond 8, and the water outlet of this purifier 9 is communicated with the water-in of disinfecting tank 10.
As shown in Figure 2, the waste water of hospital through pipeline collect enter grille well 1 in by thin grid removal foreign material after, inflow is added with the pre-sterilization pool 2 of dioxide peroxide, carry out disinfecting in advance early stage, sewage after the sterilization flows into septic tank 3, effect by precipitation is held back the organic solid pollutent earlier, pass through the effect of anaerobion then with organic matter degradation, sewage after septic tank 3 is handled enters preaeration equalizing tank 4 and regulates water quality and quantity, in the pond, carry out simultaneously preaeration, and suspended substance in the further sedimentation water, sewage after preaeration equalizing tank 4 is regulated enters anoxic pond 5, the acidication bacterium that grows in the pond changes into micromolecular organism with the larger molecular organics in the water, is convenient to follow-up aerobic treatment; Anoxic pond 5 water outlets enter biological contact oxidation pond 6, Chi Zhongzhong drops into biologic packing material, the microporous membrane aeration head is installed, blast air by blower fan, bacterium at filler along with biofilm is grown, organism in the water is become mud and inorganic gas such as CO2 by microbiological degradation, thereby reaches organic purpose in the degradation water; Biological contact oxidation pond 6 water outlets enter vertical sedimentation tank 7, mounting center water inlet pipe 7 in the vertical sedimentation tank 7, sewage is after the center water inlet pipe flows into, be to the upper reaches through reflector downwards and flow to water leg, flow out from water outlet then, mud sinks to sludge bucket, mud precipitate and separate in vertical sedimentation tank 7 that biological contact oxidation pond 6 produces, clear water enters quantitative pond 8, mud in the vertical sedimentation tank 7 promotes by air-lift device and is back to biological contact oxidation pond 6 and anoxic pond 5, excess sludge enters sludge sump 13, regularly clears; Quantitatively in the pond 8 lift pump is being installed, waste water is risen to purifier 9, suspended substance, organism and the heavy metal ion etc. of waste water in purifier 9 further filtering waste water, make that germ loses carrier in the waste water, flow into disinfecting tank 10 again and carry out the secondary sterilization processing, after the water outlet of disinfecting tank 10 flows into dechlorination pond 11 dechlorinations, enter sampling pond 15, after sampling detects, realize qualified discharge.

Claims (10)

1. hospital sewage disposal system, it is characterized in that: comprise by effluent stream to the grille well (1) by pipeline connection successively, pre-sterilization pool (2), septic tank (3), preaeration equalizing tank (4), anoxic pond (5), biological contact oxidation pond (6), vertical sedimentation tank (7), quantitatively pond (8), purifier (9), disinfecting tank (10), dechlorination pond (11), described grille well (1) is communicated with the hospital sewage drainage pipeline, and the hospital sewage after the processing is discharged after dechlorination pond (11).
2. a kind of hospital sewage disposal system according to claim 1, it is characterized in that: described purifier (9) bottom arranges water-in, the middle part is provided with gac or quartz sand filler, top sets out the mouth of a river, this purifier (9) bottom also is provided with discharge outlet, the water-in of described purifier (9) is communicated with by the water outlet of pipeline with quantitative pond (8), and the water outlet of this purifier (9) is communicated with the water-in of disinfecting tank (10).
3. a kind of hospital sewage disposal system according to claim 1 and 2, it is characterized in that: described vertical sedimentation tank (7) comprises pond body (71), water-in (72) and water outlet (73), described pond body (71) bottom is provided with sludge bucket (74), this pond body (71) top is provided with water leg, described water outlet (73) is communicated with this water leg, the top of the interior sludge bucket of described pond body (71) (74) is provided with water distributing pipe (75), this water distributing pipe (75) is communicated with described water-in (72), described water distributing pipe (75) is gradually big ring texture of from-inner-to-outer ring footpath, and is provided with the limbers on the interior outboard tube wall of this water distributing pipe (5).
4. a kind of hospital sewage disposal system according to claim 3, it is characterized in that: described water leg comprises peripheral water leg (78) and center water leg (79), described peripheral water leg (78) is positioned at pond body (71) upper end, be connected with pond body (71) inwall, described center water leg (79) is positioned at peripheral water leg (78) and communicates with peripheral water leg (79), this center water leg (79) is cruciform or strip structure, described water distributing pipe (75) top also is provided with reflector (76), this reflector (76) is taper, and the top is connected with center water leg (79) lower end by vertical support (77); Be provided with shore pipe (710) in the described pond body (71), this shore pipe (710) lower end is positioned at sludge bucket (74), the upper end protrudes upward pond body (71), and this shore pipe (710) sidewall also is connected with air lift arm (711), and this air lift arm (711) is provided with magnetic valve.
5. according to the described a kind of hospital sewage disposal system of claim 4, it is characterized in that: also comprise blower fan (12), the outlet of described blower fan (12) air feed is connected with air main, be connected with two branch wind pipes on this air main, two described branch wind pipes are communicated with the aeration webmaster that is arranged on preaeration equalizing tank (4) and biological contact oxidation pond (6) bottom respectively, be provided with gate valve on described air main and the branch wind pipe, described air lift arm is communicated with air main.
6. a kind of hospital sewage disposal system according to claim 5, it is characterized in that: also comprise sludge sump (13), this sludge sump (13) is communicated with the shore pipe (710) of described vertical sedimentation tank (7) by pipeline, and this shore pipe (710) also is communicated with described anoxic pond (5) and biological contact oxidation pond (6).
7. a kind of hospital sewage disposal system according to claim 1, it is characterized in that: also comprise chlorine dioxide generator (14), described chlorine dioxide generator (14) is communicated with pre-sterilization pool (2) and disinfecting tank (10) respectively by pipeline, for pre-sterilization pool (2) and disinfecting tank (10) provide dioxide peroxide to carry out disinfection, chlorine dioxide generator (14) is provided with ball valve with sterilization pool (2) in advance with the pipeline that disinfecting tank (10) is connected.
8. a kind of hospital sewage disposal system according to claim 1, it is characterized in that: also comprise sampling well (15), the water outlet in described dechlorination pond (11) is communicated with the water-in of sampling well (15), and the water outlet of described sampling well (15) is communicated with the municipal drainage system.
9. a kind of hospital sewage disposal system according to claim 1, it is characterized in that: also comprise Scatula (16) and dechlorinating agent medicine-chest (17), described Scatula (16) is provided with dechlorinating agent entrance and dechlorinating agent outlet, described dechlorinating agent outlet is communicated with dechlorinating agent medicine-chest (17) by the road, the outlet of this dechlorinating agent medicine-chest (17) is communicated with dechlorination pond (11) by pipeline, Scatula (16) is provided with ball valve with the pipeline that dechlorinating agent medicine-chest (17) is connected, and dechlorinating agent medicine-chest (17) is provided with magnetic valve with the pipeline that dechlorination pond (11) are connected.
10. a kind of hospital sewage disposal system according to claim 1, it is characterized in that: also comprise flocculation agent medicine-chest (18), this flocculation agent medicine-chest (18) passes through pipeline connection with described quantitative pond (8), and flocculation agent medicine-chest (18) is provided with magnetic valve with the pipeline that quantitative pond (8) is connected.
CN201310298632.6A 2013-07-16 2013-07-16 Hospital sewage treatment system Active CN103319056B (en)

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CN104787959A (en) * 2014-01-21 2015-07-22 贵州澳源环保科技有限公司 Hospital wastewater treatment system and treatment method
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CN110642475A (en) * 2019-10-29 2020-01-03 河北海天环保工程设备股份有限公司 Hospital linen waste water treatment system and method
CN110642475B (en) * 2019-10-29 2021-09-07 河北海天环保工程设备股份有限公司 Hospital linen waste water treatment system and method

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