CN1631815A - Method for treating and reusing hospital sewage - Google Patents
Method for treating and reusing hospital sewage Download PDFInfo
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- CN1631815A CN1631815A CN 200310119464 CN200310119464A CN1631815A CN 1631815 A CN1631815 A CN 1631815A CN 200310119464 CN200310119464 CN 200310119464 CN 200310119464 A CN200310119464 A CN 200310119464A CN 1631815 A CN1631815 A CN 1631815A
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Abstract
A method for processing and reusing the waste water generated in hospital is disclosed. The waste water is spayed into the reeyching purifying device in high speed by the pump through grillage and adjusting pool, meanwhile, inject the compound treating compound of kieselguhr and polyaluminium salt into it, being effected by the agitating caused by the spray power of pump, the waste water and compound treating compound form regional eddy flow which makes the compound treating compound mix with the waste completely, and aggregation-flocculation-deposition happen rapidly, after separating with water, the supernatant liquid is drained from the upper part and flows downwards to the filtration and absorption equipment filled with active carbon fiber, whose multi-layer of filtration and absorption making the pollution components acquire deep purification, the water can be reused after disinfection and sterilization. The invention can be used for flower, fish, washing car and the toilet, reaching the goal of saving energy, and aiming at the character of waste water generated in hospital, it has simple process, decreased investment for processing waste water, higher economic value of square cost and so on.
Description
Technical field: the present invention relates to a kind of sewage water treatment method, especially a kind of processing reuse method of hospital sewage.
Background technology: at present, policlinic sewage is mainly contained two kinds of processing modes, first kind is that one-level is handled, handle is to solve biotic pollution basically, hospital sewage is carried out suitable water quality and quantity adjusting and sedimentation or do the flocculation sediment processing, after removing suspended substance and macromolecular colloid thing, use certain density sterilizing agent, as clorox, hypochlorous acid, liquid chlorine, dioxide peroxide, ozone, ultraviolet ray etc. sewage is carried out disinfection, be discharged into the outfall sewer net after killing the virus of the overwhelming majority and bacterium, and focus on after municipal effluent advances to mix.As the People's Hospital, Qinhuangdao sewage is handled by the method that adopts septic tank, water collecting basin, disinfection by chlorine dioxide; First People's Hospital, Chu Zhou city by after adopting grid, equalizing tank, clorox catalytic oxidation disinfectant method handles.After the one-level processing, suspended substance in the sewage and macromolecular colloid thing can be significantly reduced, and contaminants of biological origin can obtain certain control as virus, total plate count, excrement colibacillus group number etc.; But there is the problem of two aspects in this method: at first, one-level is handled organic pollutant COD and BOD in the sewage
5, NH
3-N, total phosphorus etc. be not removal effect basically, sewage is being done in the sterilization process, these components can play oxidizing reaction with sterilizing agent, and influence is forced to need to increase the content of antiseptic sterilization agent to the sterilising effect of virus, total plate count, excrement colibacillus group number etc. in the sewage on the one hand; In sewage, generate on the other hand or increased harmful new pollutent,, can increase the ClO of body's cholesterol as carcinogenss such as monochloro amine, dichlormaine
2 -, ClO
3 -Deng.Second, because one-level is handled to solve the biotic pollution in the sewage, all other contamination indexs all can not satisfy the sewage drainage standard of countries and regions, must do further processing by means of municipal treatment plant, this does not still have the perfect outfall sewer net that links to each other with municipal wastewater for some, sewage after one-level is handled certainly will not reach emission request, thereby constitutes the pollution of surrounding area water body and the threat of proliferation of germs.Second kind is that secondary or qualified discharge are handled, generally the method for Cai Yonging is biological chemistry to be carried out in the water outlet after the one-level processing handle, utilize organism, NH3-N and phosphorus etc. in the biomass oxidative degradation sewage, again by sewage being done the appropriateness sterilization to satisfy the purpose of sewage qualified discharge.As surplus red (" handling the effect research of hospital sewage with the jet-flow aeration method " Inner Mongol environment protection; 1998; 10 (1)) propose to adopt sewage in oxidation pond, to carry out bio-oxidation with jet aerator to after hospital's one-level processing; water outlet is after valveless filtering pool filtration and the sterilization of rotor chlorinating machine, and every contamination index can satisfy emission request substantially.Song Xianying etc. (" discussion of hospital sewage improvement technology ", the environment Leader, 1999, the 4th phase) propose to adopt sewage to carry out one-level bio-contact oxidation and two stage biological catalytic oxidation to after hospital's one-level processing, water outlet is after second pond and chlorine dioxide generator sterilization, and every contamination index can satisfy the sewage discharge requirement of countries and regions.Thank to preeminent grade (" effect of ozonize hospital sewage is inquired into " in addition, railway labour hygiene safety and environmental protection, 1997,24 (2)) the sewage employing tower biological filter after proposition is handled hospital's one-level and the method for O3 contacted oxidation are handled and are sterilized, the advantage of these methods is that sewage can be accomplished direct discharging basically after treatment, needn't rely on the restriction of municipal wastewater treatment system.Yet the weak point of present secondary biochemical treatment is: biochemical bacteria is subjected to season and influence of temperature change bigger, particularly be in the area in the north, need mix heat tediously long winter to biochemistry pool and tower etc., increased investment, energy consumption and the complicacy of treatment system; The bigger characteristics of hospital sewage water yield fluctuation make originally takes up an area of higher biochemical treatment apparatus floor space and becomes huge; Be subjected in addition the restriction water outlet of biochemical treatment efficient can not satisfy in the requirement of water reuse, the unhappy smell that produces in the bio-aeration also can have influence on the environmental health of hospital and periphery.
Summary of the invention: in order to solve the problem of above-mentioned existence, it is simple to the invention provides a kind of flow process, and cost is low, and processing speed is fast and effective, the processing reuse method of the hospital sewage of allow compliance with emission standards.
Concrete technical scheme is as follows: a kind of processing reuse method of hospital sewage, and its step is as follows:
(1) after hospital sewage is isolated silt particle, suspended substance, floating matter through grid, enters into equalizing tank and carry out the water quality and quantity adjusting;
(2) sewage after the adjusting is by high-lift immersed sewage pump, composite treating agent is by the water inlet pipe of volume pump while through the nanofiltration circulating purifying device, nozzle, trunnion sprays into coagulator, composite treating agent and water pollutant produce cohesion rapidly behind thorough mixing in coagulator, the flocculation phenomenon, throw out is in flocculator, throw out sinks down into the flocculator bottom very soon and forms the cake layer that contains a large amount of poromerics gradually, this cake layer is lifted down to the settling tank bottom at continuous ascending current, form certain thickness filtering layer, sewage during by this filtering layer suspended substance separated with mushroom etc. and transformed, water quality further obtains clarification after entering settling tank, a water purification part is discharged from the top overflow groove; Another part enters coagulator by trunnion once more and carries out circularly purifying, when having served as cake layer and having run up to certain thickness, photoelectricity liquid level controller makes automatic unlatching of blow-off pipe valve that concentrated solution is discharged from blow-off pipe automatically, when concentrated solution in the settling tank drain into a certain amount of after, photoelectricity liquid level instrument makes the blow-off pipe valve cut out automatically again, stops blowdown; The composite treating agent dosage is 50-100mg/L, and the residence time of sewage in the nanofiltration circulating purifying device is 1-4 hour;
(3) water purification of being discharged by nanofiltration circulating purifying device overflow groove enters in the Filtration Adsorption equipment of filling activated carbon fiber with downward stream mode, by the bed filtration absorption acquisition deep purifying of activated carbon fiber, purify water outlet reuse after sterilization is handled to pollution components in the sewage;
(4) the concentrated dirt that is gone out by nanofiltration circulating purifying device and Filtration Adsorption device separates enters concentration basin, and supernatant liquor enters equalizing tank reuse after handle step (2), (3) once more behind the concentrating and precipitating; Concentrate dirt through pressure filter, after dehydration and disinfecting, dried slag is discharged, and pack is reclaimed.
Diatomite of the present invention is a kind of natural poromerics, because it is to be master's biogenic sediment rock by the very fast aquatic unicellular diatom remains of a kind of breeding, have tiny (325 orders of particle diameter, diatom content height (every gram contains hundred million diatoms of 2-2.5)), surface micropore is abundant, aperture minimum (mainly being distributed between the 6-125nm), therefore be a kind of typical in, the nano level sorbing material of macroporous type, to the organic constituent in the sewage, suis, intestinal bacteria etc. have extremely strong absorption and produce flocculation fast, to heavy metal, radioactive substances etc. have significant redox ability and removal effect, and have acidproof, high temperature resistant, characteristic such as wear-resisting can recycle repeatedly.In order to make aluminum chloride or polyaluminium sulfate composite in certain proportion in diatomite, form composite treating agent, utilize these polyaluminium salts good throwing out in sewage, further improve the quick cohesion deposition of diatomite minuteness particle and adsorptive thereof; Composite treating agent can pass through line mixer, also can directly join in the nanofiltration circulating purifying device to mix with sewage, and finally form the pie sediment in the bottom of nanofiltration circulating purifying device, by dewatering and disinfecting the back pack and reclaim; In nanofiltration circulating purifying device treating processes, in order to guarantee good treatment effect, sewage is 1-4 hour in the intravital residence time of machine, is preferably 2-3 hour; Purify water outlet SS can＜20mg/L, COD and BOD
5On average can remove 30-50%, total tp removal rate is nearly 70%, simultaneously part bacterium, virus and the peculiar smell thing also is adsorbed or oxidation is eliminated.
The activated carbon fiber of filling is with making through charing and activation as former silky fibres such as artificial silk, coal or petroleum pitch, polyacrylonitrile, polyvinyl alcohol, phenolic aldehyde systems in the Filtration Adsorption equipment, activated carbon fiber adopts commercially available viscose glue base, asphaltic base, polyacrylonitrile fibre felt or fibrous bundle, because it has the microvoid structure (the main distribution on the outer surface) of huge outside surface and specific surface, singlet state, multiple functional group, Fibre diameter is very thin and possess characteristics such as higher flexibility and intensity, makes it demonstrate great advantage in adsorption applications.As comparing with gac, eliminated and started to control the adsorption and diffusion resistance of making usefulness, show adsorption desorption speed fast, easily the adsorption effect of reproducibility and high-efficiency broad spectrum.The filling out activated carbon fiber and can adopt bundle fiber of filling in the Filtration Adsorption equipment also can be adopted fibrefelt, and its packing density is 100-200kg/m
3, tamped density is little, then can increase the volume of treatment unit; After activated carbon fiber reaches adsorption equilibrium,, make the pollution components pyrolysis or the oxygenolysis that are adsorbed with 200-350 ℃ normal pressure or the following regenerated with hot air of 0.5Mpa; In the Filtration Adsorption equipment running process,, require to keep 20-100h in the process in order to guarantee good activated carbon fiber wide spectrum treatment effect and to give full play to its advantage of absorption fast
-1The liquid volume air speed, the corresponding residence time is 3.0-0.6 minute, every gram activated carbon fiber volume 2-10L that disposes of sewage.By the Filtration Adsorption device processes, the organic constituent in the sewage obtains deep purifying, as remaining COD and BOD in the sewage
5Further removed 50-70%, the peculiar smell thing is eliminated fully, and bacterium and viral number reduce greatly.
Water outlet after the Filtration Adsorption device processes can be adopted common sterilization method, as disinfections such as clorox, hypochlorous acid, liquid chlorine, dioxide peroxide, ozone, ultraviolet rays, kills remaining virus and bacterium in the sewage, as fecal coliform number＜500/L; Because by after nanofiltration circulating purifying device and the Filtration Adsorption device processes, very most bacterium and virus etc. have been removed and oxidation removal in the sewage, therefore can reduce the content or the disinfecting time of sterilizing agent.
The present invention obtains deep removal to suspended substance in the hospital sewage and colloid, organic constituent, peculiar smell and bacterium, the water quality requirement of water reuse in reaching, but car is watered flowers, breeds fish, washs, brushed in reuse hospital and miscellaneous water such as flush the toilet, and reached the purpose of water saving; At the characteristics of hospital sewage water quality, the present invention has the simple advantage of flow process, reduced waste water treating and reutilizing construction investment, floor space and working cost, have higher economic value.
Description of drawings: Fig. 1 is a schema of the present invention.
Fig. 2 is the structural representation of nanofiltration circulating purifying device.
Embodiment:
Embodiment 1: a kind of processing reuse method of hospital sewage, and its step is as follows:
A kind of processing reuse method of hospital sewage, its step is as follows:
(1) after hospital sewage is isolated silt particle, suspended substance, floating matter through grid, enters into equalizing tank and carry out the water quality and quantity adjusting;
(2) sewage after regulating is by high-lift immersed sewage pump, composite treating agent by volume pump with 0.5m
3The flow velocity of/h is squeezed into the water inlet pipe of nanofiltration circulating purifying device simultaneously, nozzle, trunnion sprays into coagulator, composite treating agent and water pollutant produce cohesion rapidly behind thorough mixing in coagulator, the flocculation phenomenon, throw out is in flocculator, throw out sinks down into the flocculator bottom very soon and forms the cake layer that contains a large amount of poromerics gradually, this cake layer is lifted down to the settling tank bottom at continuous ascending current, form certain thickness filtering layer, sewage during by this filtering layer suspended substance separated with mushroom etc. and transformed, water quality further obtains clarification after entering settling tank, a water purification part is discharged from the top overflow groove; Another part enters coagulator by trunnion once more and carries out circularly purifying, when having served as cake layer and having run up to certain thickness, photoelectricity liquid level controller makes automatic unlatching of blow-off pipe valve that concentrated solution is discharged from blow-off pipe automatically, when concentrated solution in the settling tank drain into a certain amount of after, photoelectricity liquid level instrument makes the blow-off pipe valve cut out automatically again, stops blowdown; The composite treating agent dosage is 75mg/L, and its component of composite treating agent is counted by weight: polyaluminium salts 40, diatomite 45, zeolite 10, iron filings 5, and the residence time of sewage in the nanofiltration circulating purifying device is 3 hours;
(3) water purification of being discharged by nanofiltration circulating purifying device overflow groove enters in the LBL Filtration Adsorption equipment of the commercially available asphalt based active carbon fibrous bundle of filling with downward stream mode, and packing density is 130Kg/m
3, by the bed filtration absorption acquisition deep purifying of asphalt based active carbon fibrous bundle to pollution components in the sewage, the volume space velocity 60h of sewage in LBL nanofiltration circulating purifying device
-1, purify water outlet and handle the back reuse with 10mg/L hypochlorous acid mixing sterilization; The asphalt based active carbon fibrous bundle can adopt 200-350 ℃ normal pressure or the following regenerated with hot air of 0.5Mpa;
(4) the concentrated dirt that is gone out by nanofiltration circulating purifying device and LBL Filtration Adsorption device separates enters concentration basin, and supernatant liquor enters equalizing tank reuse after handle step (2), (3) once more behind the concentrating and precipitating; Concentrate dirt through pressure filter, after dehydration and disinfecting, dried slag is discharged, and pack is reclaimed.
Embodiment 2: a kind of processing reuse method of hospital sewage, and its step is as follows:
(1) after hospital sewage is isolated silt particle, suspended substance, floating matter through grid, enters into equalizing tank and carry out the water quality and quantity adjusting;
(2) sewage after regulating is by high-lift immersed sewage pump, composite treating agent by volume pump with 0.5m
3The flow velocity of/h is squeezed into the water inlet pipe of nanofiltration circulating purifying device simultaneously, nozzle, trunnion sprays into coagulator, composite treating agent and water pollutant produce cohesion rapidly behind thorough mixing in coagulator, the flocculation phenomenon, throw out is in flocculator, throw out sinks down into the flocculator bottom very soon and forms the cake layer that contains a large amount of poromerics gradually, this cake layer is lifted down to the settling tank bottom at continuous ascending current, form certain thickness filtering layer, sewage during by this filtering layer suspended substance separated with mushroom etc. and transformed, water quality further obtains clarification after entering settling tank, a water purification part is discharged from the top overflow groove; Another part enters coagulator by trunnion once more and carries out circularly purifying, when having served as cake layer and having run up to certain thickness, photoelectricity liquid level controller makes automatic unlatching of blow-off pipe valve that concentrated solution is discharged from blow-off pipe automatically, when concentrated solution in the settling tank drain into a certain amount of after, photoelectricity liquid level instrument makes the blow-off pipe valve cut out automatically again, stops blowdown; The composite treating agent dosage is 80mg/L, and its component of composite treating agent is counted by weight: polyaluminium salts 35, diatomite 40, zeolite 20, iron filings 5, and the residence time of sewage in the nanofiltration circulating purifying device is 2 hours;
(3) water purification of being discharged by nanofiltration circulating purifying device overflow groove enters in the LBL Filtration Adsorption equipment of the commercially available polyacrylonitrile fibre felt of filling with downward stream mode, and packing density is 140Kg/m
3, by the bed filtration absorption acquisition deep purifying of polyacrylonitrile fibre felt to pollution components in the sewage, the volume space velocity 80h of sewage in LBL nanofiltration circulating purifying device
-1, purify water outlet and handle the back reuse with 10mg/L clorox mixing sterilization; The polyacrylonitrile fibre felt can adopt 200-350 ℃ normal pressure or the following regenerated with hot air of 0.5Mpa;
(4) the concentrated dirt that is gone out by nanofiltration circulating purifying device and LBL Filtration Adsorption device separates enters concentration basin, and supernatant liquor enters equalizing tank reuse after handle step (2), (3) once more behind the concentrating and precipitating; Concentrate dirt through pressure filter, after dehydration and disinfecting, dried slag is discharged, and pack is reclaimed.
Embodiment 3: carry out advanced treatment at domestic certain general hospital's sewage, sewage contains serious peculiar smell, total plate count 5 * 10
7Individual/mL, excrement colibacillus group several 6 * 10
9Individual/L, COD258mg/L, BOD
5136mg/L, SS 185mg/L, NH
3-N 15mg/L, phosphoric acid salt 3mg/L, volatile phenol 9mg/L, PH7; Treatment step is as follows:
(1) after hospital sewage is isolated silt particle, suspended substance, floating matter through grid, enters into equalizing tank and carry out the water quality and quantity adjusting;
(2) sewage after regulating is by the high-lift immersed sewage pump of 30m, diatomite 50mg/L, polymerize aluminum chloride be the composite treating agent of 20mg/L, zeolite 10mg/L, iron filings 2mg/L by volume pump with 0.5m
3It is 1.5m that the flow velocity of/h is driven into useful volume simultaneously
3The water inlet pipe of nanofiltration circulating purifying device, nozzle, trunnion sprays into coagulator, composite treating agent and water pollutant produce cohesion rapidly behind thorough mixing in coagulator, the flocculation phenomenon, throw out is in flocculator, throw out sinks down into the flocculator bottom very soon and forms the cake layer that contains a large amount of poromerics gradually, this cake layer is lifted down to the settling tank bottom at continuous ascending current, form certain thickness filtering layer, sewage during by this filtering layer suspended substance separated with mushroom etc. and transformed, water quality further obtains clarification after entering settling tank, a water purification part is discharged from the top overflow groove; Another part enters coagulator by trunnion once more and carries out circularly purifying, when having served as cake layer and having run up to certain thickness, photoelectricity liquid level controller makes automatic unlatching of blow-off pipe valve that concentrated solution is discharged from blow-off pipe automatically, when concentrated solution in the settling tank drain into a certain amount of after, photoelectricity liquid level instrument makes the blow-off pipe valve cut out automatically again, stops blowdown; The residence time of sewage in the nanofiltration circulating purifying device is 2 hours;
(3) water purification of being discharged by nanofiltration circulating purifying device overflow groove enters into tundish, again by middle water pump with 0.5m
3The flow velocity of/h is squeezed in the LBL Filtration Adsorption equipment, LBL Filtration Adsorption device diameters 200mm, the commercially available viscose-based active carbon fiber bundle 3000g of filling in the virtual height 1200mm, equipment, BET specific surface area 842.2m
2/ g, mean pore size 2.10nm, total pore volume 0.50ml/g by the bed filtration absorption acquisition deep purifying of viscose-based active carbon fiber bundle to pollution components in the sewage, purifies water outlet through line mixer and the sterilization of 10mg/L dioxide peroxide thorough mixing;
(4) the concentrated dirt that is gone out by nanofiltration circulating purifying device and LBL Filtration Adsorption device separates enters concentration basin, and supernatant liquor enters equalizing tank reuse after handle step (2), (3) once more behind the concentrating and precipitating; Concentrate dirt through pressure filter, after dehydration and disinfecting, dried slag is discharged, and pack is reclaimed.
The limpid free from extraneous odour of water outlet after treatment, SS＜20mg/L, COD＜20mg/L, BOD after testing
5＜20mg/L, total phosphorus＜0.5mg/L, NH
3-N＜10mg/L, excrement colibacillus group number＜500/L, the index request reuse of water reuse in satisfying, can not produce simultaneously secondary pollution problem.
After handling 100h, to the viscose-based active carbon fiber Shu Jinhang regeneration of LBL Filtration Adsorption equipment, stop into water after, feed the air of 0.3Mpa by LBL Filtration Adsorption equipment bottom air distribution plate, keep intensity 0.05m
3/ m
230s under the S, squeeze out the interior remaining sewage of device to the raw water surge tank, feed 250 ℃ superheated vapour (pressure 0.3Mpa, flow velocity 10m/h) the viscose-based active carbon fiber bundle of alternately regenerating simultaneously, the time of logical steam and air is 10 minutes, 2 minutes of logical washing water time, process carries out twice, continues 24 minutes altogether, the viscose-based active carbon fiber bundle is recovered, and the cleaning process water consumption is 2% of a wastewater treatment capacity.
Above-mentioned LBL Filtration Adsorption equipment is commercial equipment.
The nanofiltration circulating purifying device, comprise housing 9, overflow groove 1, settling tank 2, flocculation tube 3, coagulator 4, trunnion 5, nozzle 6, water inlet pipe 8, blow-off pipe 7, photoelectricity liquid level controller 10, water shoot 11, water inlet pipe 8 is connected with nozzle 6, nozzle 6 is arranged in the trunnion 5, trunnion 5 is connected with coagulator 4, coagulator 4 is arranged in the flocculation tube 3, flocculation tube 3 is fixed on the settling tank 2 by support 12, settling tank 2 is fixed on the housing 9, be provided with overflow groove 1 in settling tank 2 upper ends, on settling tank 2 and housing 9, be provided with blow-off pipe 7, blow-off pipe 7 is provided with valve, be provided with photoelectricity liquid level controller 10 on settling tank 2 above the blow-off pipe 7 and housing 9, photoelectricity liquid level controller 10 and valve interlock are provided with water shoot 11 in housing 9 bottoms.
Claims (10)
1, a kind of processing reuse method of hospital sewage, its step is as follows:
(1) after hospital sewage is isolated silt particle, suspended substance, floating matter through grid, enters into equalizing tank and carry out the water quality and quantity adjusting;
(2) sewage after the adjusting is by high-lift immersed sewage pump, composite treating agent is by the water inlet pipe of volume pump while through the nanofiltration circulating purifying device, nozzle, trunnion sprays into coagulator, composite treating agent and water pollutant produce cohesion rapidly behind thorough mixing in coagulator, the flocculation phenomenon, throw out is in flocculator, throw out sinks down into the flocculator bottom very soon and forms the cake layer that contains a large amount of poromerics gradually, this cake layer is lifted down to the settling tank bottom at continuous ascending current, form certain thickness filtering layer, sewage during by this filtering layer suspended substance separated with mushroom etc. and transformed, water quality further obtains clarification after entering settling tank, a water purification part is discharged from the top overflow groove; Another part enters coagulator by trunnion once more and carries out circularly purifying, when having served as cake layer and having run up to certain thickness, photoelectricity liquid level controller makes automatic unlatching of blow-off pipe valve that concentrated solution is discharged from blow-off pipe automatically, when concentrated solution in the settling tank drain into a certain amount of after, photoelectricity liquid level instrument makes the blow-off pipe valve cut out automatically again, stops blowdown; The composite treating agent dosage is 50-100mg/L, and the residence time of sewage in the nanofiltration circulating purifying device is 1-4 hour;
(3) water purification of being discharged by nanofiltration circulating purifying device overflow groove enters in the Filtration Adsorption equipment of filling activated carbon fiber with downward stream mode, by the bed filtration absorption acquisition deep purifying of activated carbon fiber, purify water outlet reuse after sterilization is handled to pollution components in the sewage;
(4) the concentrated dirt that is gone out by nanofiltration circulating purifying device and Filtration Adsorption device separates enters concentration basin, and supernatant liquor enters equalizing tank reuse after handle step (2), (3) once more behind the concentrating and precipitating; Concentrate dirt through pressure filter, after dehydration and disinfecting, dried slag is discharged, and pack is reclaimed.
2, the processing reuse method of a kind of hospital sewage according to claim 1, it is characterized in that: described nanofiltration circulating purifying device, comprise housing, overflow groove, settling tank, the flocculation tube, coagulator, trunnion, nozzle, water inlet pipe, blow-off pipe, photoelectricity liquid level controller, water shoot, water inlet pipe is connected with nozzle, nozzle is arranged in the trunnion, trunnion is connected with coagulator, coagulator is arranged in the flocculation tube, the flocculation tube is fixed on the settling tank by support, settling tank is fixed on the housing, be provided with overflow groove in the settling tank upper end, be provided with blow-off pipe on settling tank and housing, blow-off pipe is provided with valve, is provided with photoelectricity liquid level controller on settling tank above the blow-off pipe and housing, photoelectricity liquid level controller and valve interlock are provided with water shoot in lower housing portion.
3, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that its component of composite treating agent counts by weight: polyaluminium salts 20-40 algae soil 40-60 zeolite 10-30 iron filings 1-5.
4, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: the residence time of sewage in the nanofiltration circulating purifying device is 2-3 hour.
5, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: described polyaluminium salts is polymerize aluminum chloride or polyaluminium sulfate.
6, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: the sterilization method described in the step (3) can be clorox, hypochlorous acid, liquid chlorine, dioxide peroxide, ozone, disinfection by ultraviolet light.
7, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: the volume space velocity 20-100h of sewage in the nanofiltration circulating purifying device
-1
8, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: described activated carbon fiber can adopt 200-350 ℃ normal pressure or the following regenerated with hot air of 0.5Mpa.
9, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: every gram activated carbon fiber volume of disposing of sewage is 2-10L.
10, the processing reuse method of a kind of hospital sewage according to claim 1 is characterized in that: the tamped density of activated carbon fiber is 100-200Kg/m
3
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|---|---|---|---|
| CN 200310119464 CN1631815A (en) | 2003-12-25 | 2003-12-25 | Method for treating and reusing hospital sewage |
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|---|---|---|---|
| CN 200310119464 CN1631815A (en) | 2003-12-25 | 2003-12-25 | Method for treating and reusing hospital sewage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465104C (en) * | 2005-08-15 | 2009-03-04 | 吕迎智 | Method for reusing synthesized middle water |
| CN101601947B (en) * | 2009-07-07 | 2011-06-01 | 中国兵器工业第五二研究所 | Sludge concentration method and filtering separation device thereof |
| CN105948415A (en) * | 2016-07-15 | 2016-09-21 | 航天圣诺（北京）环保科技有限公司 | Hospital sewage treatment integrated device and method |
| CN105967345A (en) * | 2016-05-26 | 2016-09-28 | 广西瑞兴环境工程有限公司 | Biological fermentation treating agent for medical waste water |
| CN107512794A (en) * | 2017-08-02 | 2017-12-26 | 广州市宝源节能环保科技有限公司 | The high-risk toxic wastewater processing system of hospital and processing method |
| CN107986523A (en) * | 2017-11-22 | 2018-05-04 | 苏州雷沃克环保科技有限公司 | A kind of synthetic filter bactericidal purifying treatment process of industrial wastewater |
-
2003
- 2003-12-25 CN CN 200310119464 patent/CN1631815A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465104C (en) * | 2005-08-15 | 2009-03-04 | 吕迎智 | Method for reusing synthesized middle water |
| CN101601947B (en) * | 2009-07-07 | 2011-06-01 | 中国兵器工业第五二研究所 | Sludge concentration method and filtering separation device thereof |
| CN105967345A (en) * | 2016-05-26 | 2016-09-28 | 广西瑞兴环境工程有限公司 | Biological fermentation treating agent for medical waste water |
| CN105948415A (en) * | 2016-07-15 | 2016-09-21 | 航天圣诺（北京）环保科技有限公司 | Hospital sewage treatment integrated device and method |
| CN105948415B (en) * | 2016-07-15 | 2019-05-28 | 航天圣诺（北京）环保科技有限公司 | A kind of Hospital Sewage Treatment integrated apparatus and method |
| CN107512794A (en) * | 2017-08-02 | 2017-12-26 | 广州市宝源节能环保科技有限公司 | The high-risk toxic wastewater processing system of hospital and processing method |
| CN107986523A (en) * | 2017-11-22 | 2018-05-04 | 苏州雷沃克环保科技有限公司 | A kind of synthetic filter bactericidal purifying treatment process of industrial wastewater |
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