CN101311131B - Sewage handling method and uses thereof - Google Patents
Sewage handling method and uses thereof Download PDFInfo
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- CN101311131B CN101311131B CN2007100113974A CN200710011397A CN101311131B CN 101311131 B CN101311131 B CN 101311131B CN 2007100113974 A CN2007100113974 A CN 2007100113974A CN 200710011397 A CN200710011397 A CN 200710011397A CN 101311131 B CN101311131 B CN 101311131B
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- ozone oxidation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to an urban community sewage treatment and intermediate water reuse technology, in particular to a domestic sewage treatment method and the application thereof. More particularly, domestic sewage enters a receiving pool through a grizzly screen, after being removed large solid particles, the domestic sewage is pumped into a pretreated micro-oxygen aeration filter chamber by a water pump through a filter for the degradation of organic pollution in the sewage, after degradation, the water automatically flows through the outlet of the micro-oxygen aeration filter chamber to an ozone oxidation sterilizer for ozone oxidation, the oxidized water automatically flows to a storage pool for storing through the outlet of the ozone oxidation sterilizer; the treated resurgent water is used for flushing a urinal and then is directly discharged into a municipal sewage pipe network. The technology of the invention can greatly lower treatment cost, has simple, practical and convenient technological operation, high treatment efficiency, high quality of resurgent water as well as high reuse rate. The technology of the invention can reduce the discharge amount of community sewage by 50% and realize intermediate water recycling, thus reducing water consumption by 30-40%.
Description
Technical field
The present invention relates to community in urban areas sewage disposal and technology of middle water recycle, specifically a kind of domestic sewage processing method and application thereof.
Background technology
At present, China city resident domestic consumption per capita is about 150L/d, wherein washes the lavatory water consumption and occupies significant proportion, and general single flush amount is 6-8L, and according to No. 8 meters every day, every day, the lavatory water was about 40% of resident's daily water consumption.Use reuse water replacement pure water and flush the toilet, Urban Domestic Water Consumption can reduce 40%.
The nineties in last century, the subsurface wastewater infiltration system that integrates community's life's wastewater treatment and reuse was once being brought into play vital role aspect the middle water reuse, but this technology only is applicable to that community resident's density is less, the bigger condition of greenery area between buildings.Along with popularizing of city high residential building, unit surface resident's rate of load condensate significantly improves, and per capita green area descends significantly, adopts relatively difficulty of the bigger subsurface infiltration treatment process of floor space.
Sewage disposal of existing community and middle water recovering process, adopt all generally that sewage is all collected, processing, recycling method, in the middle of water be used to wash and promptly enter next circulation behind the lavatory, make Biodegradability of Wastewater pass in time and degenerate, increased intractability and cost.Along with the resident living level improves, water consumption progressively increases per capita simultaneously, and COD of sewage concentration is on a declining curve, and economic and technical norms are caused disadvantageous effect.
Based on above-mentioned consideration, fundamentally change existing community sewage on-the-spot disposal and reuse technology on the spot, the community wastewater that research is based upon on the new concept basis is handled and reuse technology, will have a good application prospect and huge social economy and environmental benefit.
General household water can be divided into four types of culinary cuisine water, daily washing water, laundry water and bath water and flushing supplies.Wherein toilet-flushing water consumption accounts for 40% of total water amount, but its pollution load then accounts for 80% of gross contamination load.As first three is planted the independent collection and treatment of sewage, then not only its intractability reduces greatly, and the middle water of handling the back generation can satisfy the needs of flushing the toilet basically.
According to the practical situation of China's urban cells architectural development trend and sub-district water treatment and reuse, on the basis that studies for a long period of time, proposed community wastewater and handled and reuse bonded new technique.
Summary of the invention
The purpose of this invention is to provide a kind of economic, practical, efficient, environmental protection and widely applicable domestic sewage treatment process and application thereof.
To achieve these goals, technical scheme of the present invention is:
Treatment process: sanitary sewage enters water collecting basin 2 through grid 1, make sanitary sewage be extracted into the organic contamination in the degradation of sewage in pretreated little oxygen aerating filter 5 by lift pump 3 and through filter 4 sanitary sewage of removing big solid particulate, water after the degraded flows automatically to ozone oxidation sterilizing device 7 through the water outlet of little oxygen aerating filter 5 and carries out ozone oxidation, and the water after the oxidation is stored in storage pool 10 through the gravity flow of ozone oxidation sterilizing device 7 water outlets;
Wherein, the pre-treatment of little oxygen aerating filter 5: throw in the filtrate that accounts for this pool volume 2/3 in little oxygen aerating filter 5, the bacterial classification of inoculation degraded simultaneously, inoculum size is counted 2%-5% according to the per-cent of pending sanitary sewage volume, and aerating oxygen, oxygen gas flow rate 0.010m
3/ min-0.012m
3/ min makes it form one deck microbial film.
Described degraded bacterial classification is genus bacillus (Bacillus sp.), Alcaligenes (Alcaligenes sp.) and moving glue bacillus (Zoogloea sp.), and its volume parts ratio is 1: 1: 1; Wherein: described filtrate is activated carbon char and vermiculite, and it is 1: 1 by weight.
When little oxygen aerating filter 5 forms microbial film, filtrate and degraded bacterial classification are in sanitary sewage, cultivate under the room temperature, changed the water of once cultivating filtrate and degraded bacterial classification every 4-6 days, each quantity of exchanged water accounts for the 50%-60% that cultivates filtrate and the used water Total Water of degraded bacterial classification, cultivated 25-40 days, and promptly formed one deck microbial film.
Hydraulic detention time 4-6h.Backwashing period 20 days; Ozone concn in the ozone oxidation sterilizing device 7 is 40-100mg/L.
The application of treatment process: city resident sub-district, hotel, school; Sewage after handling simultaneously is used for flushing toilet bowl.
Principle of the present invention: adopting little oxygen aerating filter is that the oxygen that air compressor machine produces is dissolved in the combined sewage with compulsory method, and aeration also plays stirring action except that playing oxygen supply, guarantee be adsorbed on filter material surface on microorganism fully contact, and degrade fast.Upflowing biological filter, oxygen and sewage all enter from the bottom, filter tank, its objective is that helping pollutants in sewage fully contacts with microorganism, guarantee treatment effect.The organic pollutant than difficult degradation derives from the tensio-active agent of washing water and the grease of culinary art water in the sanitary sewage simultaneously.Washing composition and the vegetable and animals oils high efficiency degradation bacterial agent of inoculation through cultivating, taming in little oxygen aerating filter of the present invention treats that filter material surface forms one deck microbial film.Microbial film has the degrading activity to organic pollutant, and biological film formed success or not is related to the removal effect of pollutent.And for guaranteeing that the reuse water after little oxygen aerating filter is handled meets middle water quality standard, adopt ozonization that it is carried out advanced treatment, load and kill the former bacterium of disease caused by infectious water with further reductions COD.Ozone concn is controlled at the 40-100mg/L scope, can guarantee that total coliform number is less than 3 in the water outlet
L
-1, water index request in meeting.
Compared with prior art, the present invention has following advantage:
1. technology simple possible of the present invention, practicality, easy to operate, processing efficiency height, the advantage that reuse water water quality is good, reclamation rate is high, the problem of Biodegradability of Wastewater variation can be effectively avoided in semi open model circulation of the present invention, the operation steady in a long-term of realization system, can reduce community's quantity of wastewater effluent 50% by technology of the present invention, water is recycled and is reduced water consumption 30-40% in the realization.
2. have the film that organic pollutant is had degrading activity in the little oxygen aerating filter of the present invention, can guarantee pollutent washing composition class and lipid pollutant removal in the sanitary sewage.
3. more thorough to Pollutant Treatment, the present invention utilizes the upper reaches multiple-stage treatments such as oxygen filtering system, strainer, ozone oxidation sterilizing device technology that decline, and the processing efficiency height makes reuse water water quality good.
3. the present invention can be according to particular cases such as city resident sub-district, hotel school design different scales, and for example 300 man equivalents can design water collecting basin, little oxygen aerating filter and storage pool volume 15m
3, its simple in structure, with low cost, wide adaptability.
4. adopt the present invention with city domestic sewage, utilize again after for example the culinary cuisine water of Shou Jiing, daily washing water, laundry water and bathing water are handled, reduced the fresh tap water consumption on the one hand, also reduced quantity of wastewater effluent simultaneously.Have good economic benefit and application prospects for city resident sub-district, hotel, school, restaurant etc.
Description of drawings
Fig. 1 is community in urban areas of the present invention sanitary sewage disposal and recovering process flow figure.
Fig. 2 is a domestic sewage treatment process schema of the present invention.
1. grid, 2. water collecting basin, 3. lift pump, 4. strainer, 5. little oxygen aerating filter, 6. air compressor machine, 7. ozone oxidation sterilizing device, 8. ozonizer, 9. oxygen cylinder, 10. storage pool
Embodiment
Below in conjunction with embodiment the present invention is described in further details.
Embodiment 1
The pre-treatment of little oxygen aerating filter 5: in little oxygen aerating filter 5, throw in filtrate activated carbon char and the vermiculite that accounts for its volume 2/3, then adding sanitary sewage makes filtrate and degraded bacterial classification at its environment, and growth at ambient temperature, during its inoculation degraded bacterial classification, per-cent meter by volume, degraded bacterial classification inoculum size is: 2.5% of the sanitary sewage volume that adds when filtrate and degraded growth, and the logical oxygen of intermittent type, oxygen gas flow rate 0.012m
3/ min, under 20 ℃ of-28 ℃ of conditions of room temperature, move, changed every 5 days and once to cultivate filtrate and the used water of degraded bacterial classification, quantity of exchanged water accounts for cultivates 50% of filtrate and the used water Total Water of degraded bacterial classification, promptly form one deck microbial film through operation in 35 days: wherein: the weight ratio between activated carbon char and the vermiculite is 1: 1, and water level is higher than filtrate in little oxygen aerating filter 5; Described degraded bacterial classification is genus bacillus (Bacillus sp.), Alcaligenes (Alcaligenes sp.) and moving glue bacillus (Zoogloeasp.), and its volume parts ratio is 1: 1: 1; Wherein: described filtrate is activated carbon char and vermiculite, and it is 1: 1 by weight.
Get culinary cuisine sewage, washing sewage, laundry sewage and each 2L of bath sewage respectively, 8L is the grid 1 of the stainless steel of 2mm through the gap altogether, removes than sewage behind the big solid particulate and enters water collecting basin 2, sewage quality overall target CODcr is 52mg/L in the water collecting basin 2 at this moment, BOD
5Be 29mg/L, pH is 7.6, SS is that the sewage that 18mg/L (referring to table 1) enters water collecting basin 2 makes sanitary sewage be extracted into the organic contamination in the degradation of sewage in little oxygen aerating filter 5 through filter 4 by lift pump 3 again, and by air compressor machine 6 oxygenation in little oxygen aerating filter 5, water after the degraded flows automatically to ozone oxidation sterilizing device 7 through the water outlet of little oxygen aerating filter 5 and carries out ozone oxidation, oxygen produces ozone by ozonizer 8 in the oxygen cylinder 9, this gas enters in the ozone oxidation sterilizing device 7 by under meter the water after wherein degrading is carried out oxidation sterilizing, the adjusting ozone concn is 40-100mg/L, and the reaction times is 20min.Water after the oxidation is stored in storage pool 10 through the gravity flow of ozone oxidation sterilizing device 7 water outlets, storage pool 10 designed water setters, and when the water level of handling arrived design water level, storage pool 10 stopped to receive, and when water level was not enough, tap water replenished automatically.
Wherein, filter material is a quartz sand; Bacterial classification be through cultivate, degraded tensio-active agent after the domestication and the advantage degradation bacteria of animal-plant oil; Sump pump water lift amount 6m
3/ h.Upflowing is all adopted in little oxygen aerating filter water lift and oxygenation, the oxygen gas flow rate 0.018m of air compressor machine 6 oxygenations
3/ min, hydraulic detention time 5.5h, backwashing period are 20d.
Detect the water quality of storage pool 10: CODcr 4.6mg/L, BOD
51.6mg/L, total 2/L of intestinal bacteria, fecal coli does not detect, SS 2.1mg/L, pH7 (referring to table 1).And the reuse water water-quality guideline after handling meets urban life miscellaneous water water quality standard (GB-T18920-2002), can be used as the water of flushing the toilet fully, and the back water of flushing the toilet can directly enter urban pipe network.
Table 1
*Urban life miscellaneous water water quality standard (GB-T18920-2002).
Claims (6)
1. domestic sewage processing method, it is characterized in that: sanitary sewage enters water collecting basin (2) through grid (1), make sanitary sewage be extracted into the organic contamination in the degradation of sewage in pretreated little oxygen aerating filter (5) by lift pump (3) and through filter (4) sanitary sewage of removing big solid particulate, water after the degraded flows automatically to ozone oxidation sterilizing device (7) through the water outlet of little oxygen aerating filter (5) and carries out ozone oxidation, and the water after the oxidation is stored in storage pool (10) through the gravity flow of ozone oxidation sterilizing device (7) water outlet;
Wherein, the pre-treatment of little oxygen aerating filter (5): throw in the filtrate that accounts for this pool volume 2/3 in little oxygen aerating filter (5), the bacterial classification of inoculation degraded simultaneously, inoculum size is counted 2%-5% according to the per-cent of pending sanitary sewage volume, and aerating oxygen, oxygen gas flow rate 0.010m
3/ min-0.012m
3/ min makes it form one deck microbial film.
2. by the described domestic sewage processing method of claim 1, it is characterized in that: described degraded bacterial classification is genus bacillus, Alcaligenes and moving glue bacillus, and its volume parts ratio is 1: 1: 1; Wherein: described filtrate is activated carbon char and vermiculite, and it is 1: 1 by weight.
3. by the described domestic sewage processing method of claim 1, it is characterized in that: when little oxygen aerating filter (5) forms microbial film, filtrate and degraded bacterial classification are in sanitary sewage, cultivate under the room temperature, changed the water of once cultivating filtrate and degraded bacterial classification every 4-6 days, each quantity of exchanged water accounts for the 50%-60% that cultivates filtrate and the used water Total Water of degraded bacterial classification, cultivates 25-40 days, promptly forms one deck microbial film.
4. by the described domestic sewage processing method of claim 1, it is characterized in that: hydraulic detention time 4-6h, backwashing period 20 days.
5. by the described domestic sewage processing method of claim 1, it is characterized in that: the ozone concn in the ozone oxidation sterilizing device (7) is 40-100mg/L.
6. the application of the described domestic sewage processing method of claim 1 is characterized in that: described method is used for city resident sub-district, hotel, school; Sewage after handling simultaneously is used for flushing toilet bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100113974A CN101311131B (en) | 2007-05-23 | 2007-05-23 | Sewage handling method and uses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100113974A CN101311131B (en) | 2007-05-23 | 2007-05-23 | Sewage handling method and uses thereof |
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| Publication Number | Publication Date |
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| CN101311131A CN101311131A (en) | 2008-11-26 |
| CN101311131B true CN101311131B (en) | 2010-06-23 |
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| CN2007100113974A Expired - Fee Related CN101311131B (en) | 2007-05-23 | 2007-05-23 | Sewage handling method and uses thereof |
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| CN101475258B (en) * | 2008-12-31 | 2010-12-22 | 南京中电联环保股份有限公司 | Bioactive coke method for processing coking wastewater |
| CN101519267B (en) * | 2009-04-14 | 2011-08-24 | 北京师范大学 | Combined treatment process for high-concentration organic waste water |
| CN102249491B (en) * | 2011-06-16 | 2013-04-24 | 北京城市排水集团有限责任公司 | Deep treatment device and process for secondary treatment effluent of urban sewage plant |
| CN102260026B (en) * | 2011-06-29 | 2013-02-13 | 无锡强工机械工业有限公司 | Life miscellaneous wastewater biochemical treatment device |
| CN103212238B (en) * | 2012-01-19 | 2015-12-02 | 昆山思拓机器有限公司 | Wet for laser the replacing options of water circulation system in cutting system and filter-paper-tape thereof |
| CN105523624A (en) * | 2016-01-19 | 2016-04-27 | 天津大拇指环境工程有限公司 | Method and system for processing domestic wastewater of offshore oil drilling platforms |
| CN107746151A (en) * | 2017-10-27 | 2018-03-02 | 安徽中韩净化设备有限公司 | A kind of town domestic sewage purification process technique |
| CN107601723A (en) * | 2017-10-31 | 2018-01-19 | 天津科艾福特科技有限公司 | A kind of wastewater treatment equipment |
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| CN110526487A (en) * | 2018-05-23 | 2019-12-03 | 河南仁华生物科技有限公司 | A kind of sewage treatment process |
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| CN110340109A (en) * | 2019-07-17 | 2019-10-18 | 陕西天仁雪农业科技有限公司 | A kind of discarded fruit processing method |
| CN110229028A (en) * | 2019-07-17 | 2019-09-13 | 陕西天仁雪农业科技有限公司 | A kind of useless dish leaf processing method |
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