CN102351373A - 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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- CN102351373A CN102351373A CN2011101874589A CN201110187458A CN102351373A CN 102351373 A CN102351373 A CN 102351373A CN 2011101874589 A CN2011101874589 A CN 2011101874589A CN 201110187458 A CN201110187458 A CN 201110187458A CN 102351373 A CN102351373 A CN 102351373A
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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 treat effluent circulation flushing water lavatory is that water washes with the dirt behind the lavatory, relies on the biotechnology means to handle the dirt and the wash-down water of discharging from closet again, and the water outlet after the processing utilizes as lavatory flushing water again.The patent No. is that 200410041059.1 patent of invention discloses a kind of " circulating water flushing bio-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 through water pump and elevated tank again.This invention is a core with the compound bio sewage disposal, and ight soil is carried out harmless treatment, and urine is transformed, decomposes, purifies, disinfects, water cycle reuse standard in reaching, the purpose of realization circulation flushing.But there is following shortcoming in technique scheme: because the lavatory draining flows directly into biological treating tank; Concentrated continually in the blink of using in the lavatory; The load of biological treating tank surpasses disposal ability; Organic property dirt can not fully decompose; The water shortage of lavatory flushing water can take place; Or leave the phenomenon of stench in the wash water; In addition for removing the colourity and the sterilization of treatment yielding water; Adopt the ozone treatment method to remove; Use above-mentioned sewage highly processing method not only cost is high for the purpose of lavatory flushing water; Treatment facility is big, and it is big to take up room, 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 environment protection water closet and sanitary wastewater treatment process; Under the prerequisite that does not strengthen former pond capacity, also can reasonably carry out a biological disposal upon during focus utilization in the lavatory, and can fully guarantee the water yield of lavatory flushing water.
The invention of the circulating water flushing toilets, including environmental protection in order to receive the toilet drain connections of the original pool, pond outflow from the original toilet drainage for biological denitrification treatment biological treatment tank, reservoir tank effluent from the biological treatment of effluent effluent storage tank, the treated effluent water reservoir tank of a toilet flushing water supply to the water supply system of the processing, the treatment of the effluent storage tank to the biological treatment of the circulation water tank circulation system, the biological treatment tank is accepted by the outflow from the original pool of nitrogen toilet drain grooves to receive outflow from the denitrification tank mixture nitration reactor vessel disposed in nitrification tank, the tank mixture was removed after separation of the effluent and the submerged membrane separator nitrification tank from a portion of the mixture in the tank is supplied to the denitrification tank constituted nitrification liquid circulating system; in said biological treatment tank and the nitrification tank denitrification tank connected between both the communication port set in the immersion type membrane above the top of the separating apparatus, the biological treatment tank has a corresponding design capacity of 1 day capacity needed for biological treatment with preparatory capacity;
The capacity in the former pond of said circulating water flushing environment protection water closet and the reserve capacity of said biological treating tank all are set at and are equivalent to half burden of 1 day designing treatment amount of lavatory draining;
The diffuser that described immersion type membrane separator has the film frame section and is arranged on film frame section below to the gas blower of diffuser supply air, provides the attraction water pump of suction pressure to the film frame section;
The water pump that is provided with in the said nitrification liquid recycle system, to the gas blower of said diffuser supply air and the attraction water pump of said immersion type membrane separator, these power machines all use submersible type equipment, and these machines are placed in the said treat effluent storage pond;
Be provided with cooling tower in the said treat effluent supply system.
Sanitary wastewater process method step according to the invention is following:
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 the former pond is no more than under the situation of former pond capacity; From former pond with the mean hours flow; Promptly with 1 day designing treatment amount divided by 24 hours gained results, supply the lavatory draining equably to biological treating tank;
Mixed solution stops biological treating tank in lavatory draining that flows into from former pond and the groove that comprises active sludge in the groove; Mixed solution flows to nitrifying groove from denitrifying tank through connected entrance in the groove; Mixed solution is recycled to denitrifying tank from nitrifying groove through the nitrification liquid recycle system again in the groove; Under such recurrent state, carrying out biological denitrificaion handles; Mixed solution in the immersion type membrane separator separator tank in the nitrifying groove; Treat effluent is taken out, and treat effluent flows to treat effluent storage pond;
The treat effluent of accumulating in the treat effluent storage pond is through the wash water in treat effluent 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 the connected entrance; Treat effluent in the treat effluent storage pond; The treat effluent of treat effluent being store in the pond through the treat effluent recycle system is recycled to denitrifying tank; When the water level of denitrifying tank and nitrifying groove arrives the median water level that is set in the connected entrance top, just stop the circulation of treat effluent;
In above-mentioned sanitary wastewater treatment process; The burden of the lavatory draining in the former pond surpasses under the situation of former pond capacity; Divided by mean hours flow from former pond outside the lavatory draining that biological treating tank is supplied equably; The direct overflow of lavatory draining that has surpassed former pond capacity is fed to biological treating tank, carries out biological denitrificaion simultaneously and handles.
As stated, according to the present invention, surpass the reserve capacity absorption of the lavatory draining of former pond capacity by biological treating tank.
By the biological treating tank that denitrifying tank and nitrifying groove constituted biological denitrificaion is carried out in the lavatory draining and handle, and can prevent to cause that because of having accumulated nitrite and nitrate the decline of pH value is affected biological treatment through adjustment nitrification liquid internal circulating load.In addition; The treat effluent of having been separated by immersion type membrane separator circulates to denitrifying tank from treat effluent 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 and handle, can prevent when treat effluent from using as the lavatory flushing water malodorous residual the draining of lavatory institute.Because adopt immersion type membrane separator, intestinal bacteria can't pass through the separatory membrane material, can directly obtain sterilized water, so that the present invention takes up room is little, save energy consumption again, also realized the highly function of wastewater treatment.
Description of drawings
Fig. 1 is structure of the present invention and process flow diagram
Fig. 2 is a biological treating tank synoptic diagram of the present invention
Each Reference numeral implication is following:
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 treat effluent storage pond, 63 to go out water circulation system, 64 treat effluent supply systems, 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 from effusive lavatory drainings such as closets 52, except that toilet flush water, the cleaning water vent that uses when draining and cleaning lavatory of washing one's hands of washing one's hands after using flows into former pond 53.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 are provided with the biological treating tank of handling from former pond 53 effusive lavatory drainings carrying out biological denitrificaion 54.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 circulating water flushing environment protection water closet 51 was frequently used in the short period of time, the direct overflow of lavatory draining that surpasses former pond 53 capacity was drained into biological treating tank 54.
As shown in Figure 2: biological treating tank 54, comprise the denitrifying tank 56 of acceptance from the 53 inflow lavatory drainings of former pond, the nitrifying groove 57 that acceptance flows into mixed solution in the grooves from denitrifying tank 56, and be arranged on the immersion type membrane separator 58 in the nitrifying groove 57.Immersion type membrane separator 58 will be in the groove mixed solution separate the back and take out treat effluent, through the nitrification liquid recycle system 59 part of mixed solution in the groove is fed to denitrifying tank 56 in the nitrifying groove 57.
Former pond 53, denitrifying tank 56 and nitrifying groove 57 also can be provided with respectively, but this embodiment has structure shown in Figure 2.Denitrifying tank 56 is to be separated to form denitrifying tank 56 and nitrifying groove 57 in the inside of a cell body by partition wall 60 with nitrifying groove 57; Be that connected entrance 61 on the certain height of benchmark is communicated with denitrifying tank 56 and nitrifying groove 57 with the trench bottom; The needed capacity of biological treatment that the total volume of denitrifying tank 56 and nitrifying groove 57 equals 1 day designing treatment amount correspondence adds reserve capacity, and half burden of designing treatment amount of promptly 1 day is as reserve capacity.Add the reserve capacity of denitrifying tank 56 and nitrifying groove 57 with the capacity in former pond 53, can guarantee has enough abilities of accepting the lavatory draining when circulating water flushing environment protection water closet 51 was frequently used in the short period of time.Connected entrance 61 is in the top at the top of immersion type membrane separator 58, the lower edge of connected entrance 61 as the low-water level that should set.
Immersion type membrane separator 58 has: film frame section 58a, be arranged on the diffuser 58b of film frame section 58a below, and to the gas blower 58c of diffuser 58b supply air, the attraction water pump 58d of suction pressure is provided 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 the nitrifying groove, also utilize the face among the solid and gas liquid mixed flow flushing membrane frame section 58a that rising produced of bubble from the air of diffuser 58b ejection.
The water pump 59a that is provided with 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 treat effluent storage pond 62, are easy to carry out maintenance management.
The downstream of biological treating tank 54 are provided with the treat effluent storage pond 62 of accumulating from immersion type membrane separator 58 supply treat effluent; Treat effluent in the treat effluent storage pond 62 is treated to be gone out water circulation system 63 and is recycled to the denitrifying tank 56 in the biological treating tank 54; Perhaps treatedly go out water supply system 64 and be fed to closet 52, also can be used as the cleaning water in lavatory as the lavatory flushing water.The same with the water of washing one's hands, the also available tap water of the cleaning water in lavatory.The centre of treat effluent 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 the back to during early morning, the lavatory water displacement that accumulates in the former pond 53 is zero or is minimum burden that 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 the former pond 53 surpasses the capacity in former pond 53, from former pond 53 to biological treating tank 54 with mean hours flow supply the lavatory draining equably.
In biological treating tank 54; Lavatory draining that flows into from former pond 53 and the mixed solution that comprises the active sludge in the groove stop in groove; Mixed solution flows to nitrifying groove 57 from denitrifying tank 56 through connected entrance 61 in the groove; Mixed solution flows to denitrifying tank 56 from nitrifying groove 57 through the nitrification liquid recycle system 59 again in the groove, under such recurrent state, carries out biological denitrificaion and handles.Mixed solution in immersion type membrane separator 58 separator tanks in the nitrifying groove. treat effluent is taken out.Treat effluent flows to treat effluent storage pond 62.
The use in lavatory is minimum in time period at night, and when the lavatory draining that flows to biological treating tank 54 from former pond 53 was cut off the water supply, along with immersion type membrane separator 58 constantly takes out treat effluent, the water level of denitrifying tank 56 and nitrifying groove 57 descended.
When the water level of denitrifying tank 56 and nitrifying groove 57 arrived the low-water level that sets, the treat effluent in the treat effluent storage pond 62 was recycled to denitrifying tank 56 through the treat effluent recycle system 63.Internal circulating load surpasses the treat effluent amount that immersion type membrane separator 58 is taken out.Stop the circulation of treat effluent in the median water level that the water level arrival of denitrifying tank 56 and nitrifying groove 57 sets above connected entrance 61.The treat effluent of accumulating in the treat effluent storage pond 62 provides lavatory flushing water through treat effluent supply system 64.
During supply lavatory flushing water, make cryogenic lavatory draining flow into water temperature rise that biological treating tank 54 suppress biological treating tank 54 through cooling tower 65 supplies summer.
The usage frequency in lavatory increases in time period on daytime, and the burden of the lavatory draining in the former pond 53 rises gradually.The lavatory concentrates the burden of using the lavatory draining in the former pond 53, back to surpass under the situation of former pond 53 capacity in short period of time; Flow to biological treating tank 54 from former pond 53; Outside the lavatory draining divided by the even supply of mean hours flow, also add to have surpassed the lavatory draining that the direct overflow of former pond 53 capacity is fed to biological treating tank 54.At this moment; In the biological treating tank 54; Because of immersion type membrane separator 58 quantitatively takes out treat effluent; 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 in the scope of biological treating tank 54 reserve capacities, to rise gradually, biological treating tank 54 has absorbed and has surpassed the lavatory drain discharge of former pond 53 capacity and carry out the biological denitrificaion processing.At this moment; Because being equivalent to the water storage capacity of 1 day designing treatment is set; The reserve capacity of the capacity in former pond 53 and biological treating tank 54 has guaranteed to be equivalent to 1 day the needed capacity of designing treatment amount, and the water level of denitrifying tank 56 and nitrifying groove 57 can not surpass the high-water that sets.Under the abnormal conditions, the warning howler action temporarily stopped the use in lavatory when the water level of biological treating tank arrived the high-water that sets.
Generally, median water level is to the capacity between the high-water, is set at half capacity of 1 day designing treatment amount.
Through such operation, under the considerably less situation of lavatory usage frequency, also allow the treat effluent circulation daytime, treat effluent through handling, 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 (7)
1 A circulating water flush toilets environmental protection, including the toilet drain in turn connected to receive the original pool, pond outflow from the original toilet drainage for biological denitrification treatment biological treatment tank, reservoir outflow from the biological treatment tank effluent treatment water storage tank, the effluent effluent storage pool as toilet flushing water supply system supplies water treatment, the treatment of the effluent storage tank to the biological treatment tank water circulation water circulation system, characterized in that said biological treatment slots are accepted by the outflow from the original toilet drainage basin denitrification tank, receiving tank effluent from the denitrification tank mixture nitrification tank, set in the nitrification tank, the tank effluent mixture separated out after immersion membrane separation device and mixed in the tank from the nitrification tank is supplied to the denitrification tank as part of the liquid circulating system constituted nitrification; biological treatment in the denitrification tank and the nitrification tank slots connected between the communication port settings of both In an immersion type membrane separation apparatus above the top, the biological treatment tank has a corresponding design capacity of 1 day biological preparation with the capacity required for the processing capacity.
2. according to the said circulating water flushing environment protection water closet of claim 1; The capacity that it is characterized in that said former pond is set at and is equivalent to half volume storage of 1 day designing treatment amount of lavatory draining, and the reserve capacity of said biological treating tank is set at and is equivalent to half burden of 1 day designing treatment amount of lavatory draining.
3. according to the said circulating water flushing environment protection water closet of claim 1; It is characterized in that the diffuser that described immersion type membrane separator has the film frame section and 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 said nitrification liquid recycle system is provided with water pump, in the said treat effluent supply system cooling tower is set.
4. according to the said circulating water flushing environment protection water closet of claim 3; It is characterized in that the water pump that is provided with in the attraction water pump of the gas blower of said diffuser supply air and said immersion type membrane separator and the said nitrification liquid recycle system; These power machines all use submersible type equipment, and these machines are placed in the said treat effluent storage pond.
5. according to the sewage water treatment method of the said circulating water flushing environment protection water closet of claim 4, step is following:
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 the former pond is no more than under the situation of capacity in former pond; From former pond with the mean hours flow; Promptly, supply the lavatory draining equably to biological treating tank with 1 day designing treatment amount result divided by 24 hours gained;
Mixed solution stops biological treating tank in lavatory draining that flows into from former pond and the groove that comprises active sludge; Mixed solution flows to nitrifying groove from denitrifying tank through connected entrance in the groove; Mixed solution is recycled to denitrifying tank from nitrifying groove through the nitrification liquid recycle system again in the groove; Under such recurrent state, carrying out biological denitrificaion handles; Mixed solution in the immersion type membrane separator separator tank in the nitrifying groove; Treat effluent is taken out, and treat effluent flows to treat effluent storage pond;
The treat effluent of accumulating in the treat effluent storage pond is through the wash-down water in treat effluent supply system supply lavatory.
6. according to the said circulating water flushing environment protection water closet of claim 5 sewage water treatment method; 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 the connected entrance; Flow with the treat effluent amount of taking out greater than immersion type membrane separator; The treat effluent of treat effluent being store in the pond through the treat effluent recycle system is recycled to denitrifying tank; When the water level of denitrifying tank and nitrifying groove arrives the median water level that is set in the connected entrance top, just stop the circulation of treat effluent.
7. according to the said circulating water flushing environment protection water closet of claim 5 sewage water treatment method; It is characterized in that in above-mentioned sanitary wastewater treatment process; The burden of the lavatory draining in the former pond surpasses under the situation of former pond capacity; Divided by mean hours flow from former pond outside biological treating tank flows into the lavatory draining of supply equably; The lavatory draining that has surpassed former pond capacity is fed to biological treating tank with direct overflow, carries out biological denitrificaion simultaneously and handles.When the biological treating tank liquid level arrived the high-water of setting, the lavatory was stopped using.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN102351373A true CN102351373A (en) | 2012-02-15 |
| CN102351373B CN102351373B (en) | 2013-05-15 |
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Citations (8)
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| JPH10159151A (en) * | 1996-12-03 | 1998-06-16 | Best Kogyo Kk | Circulating wastewater treatment unit toilet |
| JP2003313917A (en) * | 2003-03-07 | 2003-11-06 | Kubota Corp | Circulatory purifier |
| 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 |
| JP2005161218A (en) * | 2003-12-03 | 2005-06-23 | Toyota Auto Body Co Ltd | Membrane separator |
| 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 |
-
2011
- 2011-07-06 CN CN 201110187458 patent/CN102351373B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159151A (en) * | 1996-12-03 | 1998-06-16 | Best Kogyo Kk | Circulating wastewater treatment unit toilet |
| 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 |
| JP2003313917A (en) * | 2003-03-07 | 2003-11-06 | Kubota Corp | Circulatory purifier |
| JP2005161218A (en) * | 2003-12-03 | 2005-06-23 | Toyota Auto Body Co Ltd | Membrane separator |
| 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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