CN102351373B - Environmental protection toilet flushed by circulating water and toilet sewage processing method - Google Patents
Environmental protection toilet flushed by circulating water and toilet sewage processing method Download PDFInfo
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- CN102351373B CN102351373B CN 201110187458 CN201110187458A CN102351373B CN 102351373 B CN102351373 B CN 102351373B CN 201110187458 CN201110187458 CN 201110187458 CN 201110187458 A CN201110187458 A CN 201110187458A CN 102351373 B CN102351373 B CN 102351373B
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Abstract
The invention which discloses an environmental protection toilet flushed by circulating water and a toilet sewage processing method belongs to the sewage processing field. The environmental protection toilet flushed by the circulating water comprises, successively connected, a raw water pool for receiving toilet flushing water, a biological processing tank for carrying out biological denitrogenation processing on the toilet flushing water, a processing wastewater pool for storing processing wastewater, a processing wastewater supply system for supplying the processing wastewater as the toilet flushing water, and a wastewater circulation system for circulating the processing wastewater in the processing wastewater pool to the biological processing tank, wherein the biological processing tank comprises, successively connected, a denitrogenation tank, a nitration tank, an immersive membrane separation apparatus and a nitration liquid circulation system, and has a prepared volume. The method of the invention is characterized in that: the toilet flushing water which enters the biological processing tank through the raw water pool is subjected to the biological denitrogenation processing and the membrane separation processing in the biological processing tank, so escherichia coli is prevented from going, the outlet water of the biological processing tank can be directly used as the toilet flushing water. The environmental protection toilet of the invention has the advantages of small occupied land, low energy consumption and easy maintenance.
Description
Technical field
The invention belongs to sewage treatment area, relate to sewage water treatment method and sewage recycle device, relate in particular to the treatment and purification method of feces of toilet sewage and the circulating water flushing environment protection water closet of adopting said method.
Background technology
Traditional processing water outlet circulating flushing wash water lavatory is that water rinses with the dirt behind the lavatory, then relies on the biotechnology means to process dirt and the wash-down water of discharging from closet, and the water outlet after processing recycles as lavatory flushing water.The patent No. is that 200410041059.1 patent of invention discloses a kind of " circulating water flushing ecological toilet and sewage water treatment method thereof ", comprise the elevated tank, toilet, stirring powder crushing device, equipment for separating liquid from solid, anaerobic reaction device, hold concurrently oxygen reaction unit, aerobic reaction device and the ozonization plant that are connected in turn, ozonization plant links together by water pump and elevated tank again.This invention is carried out harmless treatment take the compound bio sewage disposal as core to ight soil, and urine is transformed, decomposes, purifies, disinfects, and reaches middle water cycle reuse standard, realizes the purpose of circulation flushing.but there is following shortcoming in technique scheme: because the lavatory draining flows directly into biological treating tank, in the blink of using is concentrated continually in the lavatory, the load of biological treating tank surpasses processing power, the Organic dirt can not fully decompose, the water shortage of lavatory flushing water can occur, or stay cacodorous phenomenon in wash water, be colourity and the sterilization of Transformatin water outlet in addition, adopt the ozonize method to remove, not only cost is high to use above-mentioned sewage highly treatment process for the purpose of lavatory flushing water, treatment facility is large, take up room large, and maintenance management is complicated.
Summary of the invention
For solving the problem of above-mentioned existence, the invention provides a kind of circulating water flushing environmental protection toilet sanitary wastewater treatment process in one's power, under the prerequisite that does not strengthen former pond capacity, also can reasonably carry out a biological disposal upon when the focus utilization of lavatory, and can fully guarantee the water yield of lavatory flushing water.
circulating water flushing environment protection water closet of the present invention comprises the former pond of the reception lavatory draining that connects successively, the biological treating tank that biological denitrificaion is processed is made in the lavatory draining of flowing out from former pond, accumulate from the processing water outlet storage pond of the processing water outlet of biological treating tank outflow, the processing water outlet of processing in water outlet storage pond is gone out water supply system as the processing of lavatory flushing water supply, to process processing water outlet in water outlet storage pond and be recycled to the water circulation system that of biological treating tank, described biological treating tank is the denitrifying tank by the lavatory draining of accepting to flow out from former pond, the nitrifying groove of mixed solution in the groove that acceptance is flowed out from denitrifying tank, be arranged in nitrifying groove, take out the immersion type membrane separator of processing water outlet after mixed solution in groove is separated and from nitrifying groove, the nitrification liquid recycle system that the part of mixed solution in groove is fed to denitrifying tank consisted of, between the denitrifying tank and nitrifying groove of described biological treating tank, the connected entrance that connects both sides is set in the top at the top of immersion type membrane separator, and when the designing treatment amount that biological treating tank had corresponding 1 day is carried out a biological disposal upon, required capacity adds reserve capacity,
The capacity in the former pond of described circulating water flushing environment protection water closet and the reserve capacity of described biological treating tank all are set as and are equivalent to half burden of the lavatory draining designing treatment amount of 1 day;
Described immersion type membrane separator to the gas blower of diffuser supply air, provides the attraction water pump of suction pressure with film frame section and the diffuser that is arranged on film frame section below to the film frame section;
The water pump that arranges in the described nitrification liquid recycle system, to the gas blower of described diffuser supply air and the attraction water pump of described immersion type membrane separator, these power machines all use submersible type equipment, and these machines are placed in described processing water outlet storage pond;
The described processing out is provided with cooling tower in water supply system.
Sanitary wastewater process method step of the present invention is as follows:
Lavatory draining (draining of washing one's hands, cleaning draining and toilet flush water) flows into former pond, the burden of the lavatory draining in former pond is no more than in the situation of former pond capacity, from former pond with the mean hours flow, namely with the designing treatment amount of 1 day divided by 24 hours acquired results, supply equably the lavatory draining to biological treating tank;
In the lavatory draining that flows into from former pond and the groove that comprises active sludge in groove, mixed solution stops biological treating tank, in groove, mixed solution flows to nitrifying groove from denitrifying tank by connected entrance, in groove, mixed solution is recycled to denitrifying tank from nitrifying groove by the nitrification liquid recycle system again, carrying out biological denitrificaion under such recurrent state processes, mixed solution in immersion type membrane separator separator tank in nitrifying groove, to process water outlet and take out, and process out current direction processing water outlet and store the pond;
The processing water outlet of accumulating in processing water outlet storage pond is by processing out the wash water in water supply system supply lavatory.
In above-mentioned sanitary wastewater treatment process, when the water level of denitrifying tank and nitrifying groove arrives near the low-water level that sets connected entrance, processing water outlet in processing water outlet storage pond, be recycled to denitrifying tank by processing out the processing water outlet that water circulation system will process in water outlet storage pond, until the water level of denitrifying tank and nitrifying groove when arriving the median water level be set in the connected entrance top, just stops processing out water circuit;
In above-mentioned sanitary wastewater treatment process, the burden of the lavatory draining in former pond surpasses in the situation of former pond capacity, outside the mean hours flow lavatory draining of supplying equably from former pond to biological treating tank, the direct overflow of lavatory draining that has surpassed former pond capacity is fed to biological treating tank, carries out simultaneously biological denitrificaion and processes.
As mentioned above, according to the present invention, surpass the lavatory draining of former pond capacity by the reserve capacity absorption of biological treating tank.
The biological treating tank that is made of denitrifying tank and nitrifying groove carries out the biological denitrificaion processing to the lavatory draining, and can prevent from causing that because having accumulated nitrite and nitrate the decline of pH value is affected biological treatment by adjusting the nitrification liquid internal circulating load.In addition, the processing water outlet that has been separated by immersion type membrane separator circulates to denitrifying tank from processing water outlet storage pond, even make the lavatory water displacement that flows into biological treating tank change to some extent, also can carry out sufficient biological denitrificaion to the draining of lavatory institute and process, can prevent the residual of stench when processing water outlet uses as the lavatory flushing water.Owing to adopting immersion type membrane separator, intestinal bacteria can't pass through the separatory membrane material, can directly obtain sterilized water, therefore that the present invention takes up room is little, save again energy consumption, have also realized the highly function of wastewater treatment.
Description of drawings
Fig. 1 is structure ﹠processes schematic flow sheet of the present invention
Fig. 2 is biological treating tank schematic diagram of the present invention
Each Reference numeral implication is as follows:
51 circulating water flushing environment protection water closets, 52 closets, 53 former ponds, 54 biological treating tanks, 55 water pumps, 56 denitrifying tanks, 57 nitrifying grooves, 58 immersion type membrane separators, 58a film frame part, 58b diffuser, 58c gas blower, 58d attract water pump, the 59 nitrification liquid recycle systems, 59a water pump, 60 partition walls, 61 connected entrances, 62 to process water outlets storage pond, 63 to go out water circulation system, 64 and process out water supply system, 65 cooling towers
Preferred forms
Below in conjunction with accompanying drawing, sanitary wastewater treatment process of the present invention and circulating water flushing environment protection water closet are described in detail.
As shown in Figure 1: circulating water flushing environment protection water closet 51, be provided with the former pond 53 of accumulating the lavatory draining of flowing out from closet 52 grades, except toilet flush water, the former pond 53 of cleaning water vent inflow of washing one's hands and using when draining and cleaning lavatory after using of washing one's hands.Setting is equivalent to half burden of 1 day designing treatment amount of lavatory draining as the capacity in former pond 53.
Downstream in former pond 53 arranges the biological treating tank 54 that biological denitrificaion is processed is carried out in the lavatory draining of flowing out from former pond 53.The lavatory draining of 55 pairs of biological treating tanks of water pump, 54 supply certain flow is used in former pond 53, and when the short period of time was frequently used, the direct overflow of lavatory draining that surpasses former pond 53 capacity was drained into biological treating tank 54 when circulating water flushing environment protection water closet 51.
As shown in Figure 2: biological treating tank 54, comprise the denitrifying tank 56 of accepting to flow into from former pond 53 the lavatory draining, accept to flow into the nitrifying groove 57 of mixed solution in groove from denitrifying tank 56, and be arranged on the immersion type membrane separator 58 in nitrifying groove 57.Take out after immersion type membrane separator 58 separates mixed solution in groove and process water outlet, by the nitrification liquid recycle system 59, the part of mixed solution in groove is fed to denitrifying tank 56 in nitrifying groove 57.
Immersion type membrane separator 58 is arranged on the diffuser 58b of film frame section 58a below with film frame section 58a, to the gas blower 58c of diffuser 58b supply air, provides the attraction water pump 58d of suction pressure to film frame section 58a.Rely on and force magnetism or gravity to make film frame section 58a carry out membrane sepn as motivating force, except to supply oxygen in nitrifying groove, also utilize the face in the solid and gas liquid mixed flow flushing membrane frame section 58a that the rising of bubble produces from the air of diffuser 58b ejection.
The water pump 59a that arranges in the nitrification liquid recycle system 59, to the gas blower 58c of diffuser 58b supply air, the attraction water pump 58d of immersion type membrane separator 58, these power machines all use submersible type equipment, these machines are placed in the processing water outlet store in pond 62, be easy to carry out maintenance management.
The downstream of biological treating tank 54 is provided with accumulates the processing water outlet storage pond 62 of processing water outlet from immersion type membrane separator 58 supplies, process that processing water outlet in water outlet storage pond 62 is treated to go out water circulation system 63 and be recycled to denitrifying tank 56 in biological treating tank 54, perhaps treatedly go out water supply system 64 and be fed to closet 52 as the lavatory flushing water, also can be used as the cleaning water in lavatory.The same with the water of washing one's hands, the cleaning water in lavatory is available tap water also.The centre of processing out water supply system 64 is provided with cooling tower 65.
Below, the effect of above-mentioned formation is described.The lavatory has uses manyly daytime, uses few tendency night, through the usage frequency at night few during after to during early morning, the lavatory water displacement that accumulates in former pond 53 is zero or is minimum burden, biological treating tank 54 is in the median water level state of setting.
Under the state that night or daytime, used in the lavatory, when the burden of the lavatory draining in former pond 53 surpasses the capacity in former pond 53, from former pond 53 to biological treating tank 54 with mean hours flow supply equably the lavatory draining.
In biological treating tank 54, the lavatory draining that flows into from former pond 53 and the mixed solution that comprises the active sludge in groove stop in groove, in groove, mixed solution flows to nitrifying groove 57 from denitrifying tank 56 by connected entrance 61, in groove, mixed solution flows to denitrifying tank 56 from nitrifying groove 57 by the nitrification liquid recycle system 59 again, carries out biological denitrificaion and process under such recurrent state.Mixed solution in immersion type membrane separator 58 separator tanks in nitrifying groove. will process water outlet and take out.Process out current direction processing water outlet and store pond 62.
In time period at night the use in lavatory is minimum, when the lavatory draining that flows to biological treating tank 54 from former pond 53 is cut off the water supply, constantly will process water outlet and take out along with immersion type membrane separator 58, and the water level of denitrifying tank 56 and nitrifying groove 57 descends.
When the water level of denitrifying tank 56 and nitrifying groove 57 arrived the low-water level that sets, the processing water outlet that the processing water outlet is store in pond 62 was recycled to denitrifying tank 56 by processing out water circulation system 63.Internal circulating load surpasses the processing aquifer yield that immersion type membrane separator 58 takes out.The water level of denitrifying tank 56 and nitrifying groove 57 stops processing out water circuit when arriving the median water level that sets above connected entrance 61.The processing water outlet of accumulating in processing water outlet storage pond 62 provides lavatory flushing water by processing out water supply system 64.
During supply lavatory flushing water, rise the water temperature of the lavatory draining inflow biological treating tank 54 inhibition biological treating tanks 54 of low temperature by cooling tower 65 supplies summer.
In time period on daytime, the usage frequency in lavatory increases, and the burden of the lavatory draining in former pond 53 rises gradually.The burden of the lavatory draining after in the short period of time, the lavatory is concentrated and used in former pond 53 surpasses in the situation of former pond 53 capacity, flow to biological treating tank 54 from former pond 53, outside lavatory draining divided by the even supply of mean hours flow, also add to have surpassed the lavatory draining that the 53 direct overflows of capacity of former pond are fed to biological treating tank 54.At this moment, in biological treating tank 54, because immersion type membrane separator 58 quantitatives go out to process water outlet, the 53 lavatory drainings that evenly flow into and overflow from former pond and the lavatory draining that surpasses former pond capacity that comes, cause water level to rise gradually in the scope of biological treating tank 54 reserve capacities, biological treating tank 54 has absorbed and has surpassed the lavatory drain discharge of former pond 53 capacity and carry out biological denitrificaion and process.At this moment, because the water storage capacity that is equivalent to the designing treatment of 1 day is set, the reserve capacity of the capacity in former pond 53 and biological treating tank 54 has guaranteed to be equivalent to the needed capacity of designing treatment amount of 1 day, and the water level of denitrifying tank 56 and nitrifying groove 57 can not surpass the high-water that sets.Under abnormal conditions, the water level of biological treating tank arrives the high-water alarm device action that sets, and temporarily stops the use in lavatory.
Generally, median water level is to the capacity between high-water, is set as half capacity of 1 day designing treatment amount.
By such operation, in the situation that the lavatory usage frequency is considerably less, also allows daytime and process out water cycle, the processing water outlet through processing, can improve the water quality of wash-down water again in biological treating tank 54.And the lifting capacity of lavatory draining that at this moment flows into biological treating tank 54 is few, causes that the autodigestion of mud reduces excess sludge.Therefore the pump drainage amount of excess sludge reduces, the processing costs that can save mud.
Claims (3)
1. the sewage water treatment method of a circulating water flushing environment protection water closet,
described circulating water flushing environment protection water closet comprises the former pond of the reception lavatory draining that connects successively, the biological treating tank that biological denitrificaion is processed is made in the lavatory draining of flowing out from former pond, accumulate from the processing water outlet storage pond of the processing water outlet of biological treating tank outflow, the processing water outlet of processing in water outlet storage pond is gone out water supply system as the processing of lavatory flushing water supply, to process processing water outlet in water outlet storage pond and be recycled to the water circulation system that of biological treating tank, it is characterized in that described biological treating tank is the denitrifying tank by the lavatory draining of accepting to flow out from former pond, the nitrifying groove of mixed solution in the groove that acceptance is flowed out from denitrifying tank, be arranged in nitrifying groove, take out the immersion type membrane separator of processing water outlet after mixed solution in groove is separated and from nitrifying groove, the nitrification liquid recycle system that the part of mixed solution in groove is fed to denitrifying tank consisted of, between the denitrifying tank and nitrifying groove of described biological treating tank, the connected entrance that connects both sides is set in the top at the top of immersion type membrane separator, and the required capacity of designing treatment amount biological treatment that biological treating tank had corresponding 1 day adds reserve capacity, the capacity in former pond is set as and is equivalent to half volume storage of the lavatory draining designing treatment amount of 1 day, and the reserve capacity of described biological treating tank is set as and is equivalent to half burden of the lavatory draining designing treatment amount of 1 day, described immersion type membrane separator is with film frame section and the diffuser that is arranged on film frame section below, gas blower to diffuser supply air, the attraction water pump of suction pressure is provided to the film frame section, the described nitrification liquid recycle system arranges water pump, and described processing the out arranges cooling tower in water supply system, the water pump that arranges in the gas blower of described diffuser supply air and the attraction water pump of described immersion type membrane separator and the described nitrification liquid recycle system, these power machines all use submersible type equipment, and these machines are placed in described processing water outlet storage pond,
Step is as follows:
The draining of washing one's hands in lavatory, the wash-down water of lavatory cleaning water and closet flows into former pond, the burden of the lavatory draining in former pond is no more than in the situation of capacity in former pond, from former pond with the mean hours flow, namely with the designing treatment amount of the 1 day result divided by 24 hours gained, supply equably the lavatory draining to biological treating tank;
In the lavatory draining that flows into from former pond and the groove that comprises active sludge, mixed solution stops biological treating tank, in groove, mixed solution flows to nitrifying groove from denitrifying tank by connected entrance, in groove, mixed solution is recycled to denitrifying tank from nitrifying groove by the nitrification liquid recycle system again, carrying out biological denitrificaion under such recurrent state processes, mixed solution in immersion type membrane separator separator tank in nitrifying groove, to process water outlet and take out, and process out current direction processing water outlet and store the pond;
The processing water outlet of accumulating in processing water outlet storage pond is by processing out the wash-down water in water supply system supply lavatory.
2. circulating water flushing environment protection water closet sewage water treatment method according to claim 1, it is characterized in that in above-mentioned sanitary wastewater treatment process, when the water level of denitrifying tank and nitrifying groove arrives near the low-water level that sets connected entrance, flow with the processing aquifer yield that takes out greater than immersion type membrane separator, be recycled to denitrifying tank by processing out the processing water outlet that water circulation system will process in water outlet storage pond, until the water level of denitrifying tank and nitrifying groove when arriving the median water level be set in the connected entrance top, just stops processing out water circuit.
3. circulating water flushing environment protection water closet sewage water treatment method according to claim 2, it is characterized in that in above-mentioned sanitary wastewater treatment process, the burden of the lavatory draining in former pond surpasses in the situation of former pond capacity, divided by mean hours flow flow into from former pond to biological treating tank equably outside the lavatory draining of supply, the lavatory draining that has surpassed former pond capacity is fed to biological treating tank with direct overflow, carries out simultaneously biological denitrificaion and processes; When the biological treating tank liquid level arrived the high-water of setting, the lavatory was stopped using.
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| CN 201110187458 CN102351373B (en) | 2011-07-06 | 2011-07-06 | Environmental protection toilet flushed by circulating water and toilet sewage processing method |
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| CN 201110187458 CN102351373B (en) | 2011-07-06 | 2011-07-06 | Environmental protection toilet flushed by circulating water and toilet sewage processing method |
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Family Cites Families (3)
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| JPH10159151A (en) * | 1996-12-03 | 1998-06-16 | Best Kogyo Kk | Circulating wastewater treatment unit toilet |
| JP3734478B2 (en) * | 2003-03-07 | 2006-01-11 | 株式会社クボタ | Circulating purification device |
| JP2005161218A (en) * | 2003-12-03 | 2005-06-23 | Toyota Auto Body Co Ltd | Membrane separator |
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2011
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|---|---|---|---|---|
| CN2598994Y (en) * | 2002-11-29 | 2004-01-14 | 上海太比雅科技有限公司 | Ecological circulating treatment system for water closet |
| JP2008086991A (en) * | 2006-09-07 | 2008-04-17 | Nikko Co | Circulation type method and apparatus for treating human waste |
| CN201447757U (en) * | 2009-04-30 | 2010-05-05 | 杨北超 | Intelligent ecocycle vacuum mobile toilet cleaned by ozone water |
| CN101792240A (en) * | 2010-04-06 | 2010-08-04 | 浙江云洲科技有限公司 | Recovery processing system for dejection and sewage of train |
| CN202164668U (en) * | 2011-07-06 | 2012-03-14 | 北京市环境保护科学研究院 | Circulating water flushed environment-friendly toilet |
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| JP特开2003-313917A 2003.11.06 |
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