CN1230390C - System of treating and reclaiming sewage in biotope - Google Patents
System of treating and reclaiming sewage in biotope Download PDFInfo
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- CN1230390C CN1230390C CN 200410023763 CN200410023763A CN1230390C CN 1230390 C CN1230390 C CN 1230390C CN 200410023763 CN200410023763 CN 200410023763 CN 200410023763 A CN200410023763 A CN 200410023763A CN 1230390 C CN1230390 C CN 1230390C
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Abstract
The present invention relates to a sewage treatment and recycle system for domestic districts, which belongs to the field of environment protection. The present invention is characterized in that a comprehensive sewage treatment pool integrated with an activated sludge treatment method and a biologic film method is divided into a water collection pool, a pump pool, a floating organism bed, a deposition pool, a biological filtration layer, a recycling pool and a sludge well; floating biological carriers which occupy 30% to 40% of the volume of the floating organism bed are added into the floating organism bed; sewage is biodegraded and deposited into recycle water; when the sewage quantity of excess deposited sludge is small (at night), the aerobic treatment of the sludge is carried out in the floating organism bed. The overall system has the advantages of stable treatment effect, small occupation area, small investment, low operating cost and convenient maintenance.
Description
Technical field
The invention belongs to the environmental protection field and be particularly related to the bio-carrier waste water treating and reutilizing technology of biotope.
Background of invention
Sanitary sewage reuse after advanced treatment (middle water reuse) is the conserve water resource not only, and is the essential measure that solves water environment pollution.The common technology of current sanitary sewage disposal has conventional activated sludge process, biological contact oxidation process and Up-flow Biological Aerated Filter and membrane Bio-reactor Technology.
Though above-mentioned several technology is applied at present, also all there is the deficiency of some aspect.For example the conventional activated sludge process volumetric loading is less, and floor space is bigger, and that uses in community wastewater is handled is fewer and feweri; Though biological contact oxidation process has improved volumetric loading greatly, because filler is fixedly in the water, life-time service can stop up filler, makes the reduction of microbial film renewal speed, and processing efficiency is reduced greatly; Upward flow aeration and biological filter mud technology then owing to need recoil regularly, therefore, needs complicated robot control system(RCS), thereby has increased system's investment; Membrane bioreactor needs complicated Controlling System equally, and has increased comparatively expensive membrane module, and therefore, cost of investment is higher, is unaffordable for most of areas.The above-mentioned several technology of what is more important are not given full play to the effect in sewage disposal of anerobe and anoxic bacteria mainly based on aerobic treatment, and therefore, it is also generally bigger to consume energy, and initial cost is bigger, and the processed in units cost is higher.
Summary of the invention
The objective of the invention is to propose that a kind of floor space is little, technical process is simple, treatment effect is stable, management maintenance is convenient, construction costs is cheap, running cost is low, be suitable for the Sewage treatment systems in life residential district large-scale popularization.
Technical scheme of the present invention is: according to the locus of life residential district on ground or underground (semi-underground) build sewage treatment structure, structures are spaced apart some functional zone.Be divided into successively according to sewage treatment process: water collecting basin (the thin barrier of interior installing)-pump pond-floating bio-bed (pond)-inclined-plate clarifying basin-biofiltration layer-reuse pool; The settling tank bottom is communicated with a sewer catch basin with pipeline in addition.
Wherein, the facility of each functional zone and sewage treatment process are:
1. water collecting basin is connected sewer line, maintain 15% returnedactivatedsludge in the pond, dominant bacteria at first is converted into dissolved organic matter to the organism of sewage, and the fine fack of aperture 5.0mm also is set in the water collecting basin, and the sewage behind the preliminary dirt that transforms and intercept more than the 5.0mm enters the pump pond.
2. in the pump pond sump pump is set, sewage is risen to floating bio-bed.
3. floating bio-bed is spaced apart that several are function bed, the bio-carrier of a certain amount of different biochemical reactions of each function bed placement, as anaerobe carrier, anoxic bio-carrier, aerobe carrier, make each function bed realization biological bacteria various organic functions of degrading, sewage disposal is become the reuse water of the various indexs of different purposes.
The floating bio-bed bottom is provided with the aerated conduit of even gas distribution, connects pressure fan, carries out the aeration oxygen supply as required, and bio-carrier rolls at the bed inner suspension in a certain direction with current and gas, equably degradation of organic substances.
Above-mentioned bio-carrier is to serve as main multi-disc, cavernous column and the spherule made from organic materialss such as polypropylene, and proportion is 0.95-1.0.Anoxic anaerobe carrier is spherical, and its specific surface area is 240-280m
2/ m
3The aerobe carrier is a column, and its specific surface area is 340-380m
2/ m
3The dosing rate of bio-carrier is decided according to the concentration of sewage and the purification standard that requires to handle, and general sanitary sewage is 30-40%, and high-concentration sewage is 50-60%.
The sewage that absorbs degraded through floating bio-bed flows into the stainless steel inclined-plate clarifying basin.
4. in the stainless steel inclined-plate clarifying basin evenly distributed stainless-steel sheet is set.Have heavy bucket at the bottom of the pond, heavy bucket bottom is equipped with sludge pipe.The mixed solution that flows into through floating bio-bed slowly moves up through the swash plate below, and the bottom precipitating sludge is collected at heavy bucket, and to sludge sump, top " primary water " flows into the biological filter by pipe-line transportation.
5. in the biofiltration layer, spread multilayer grating filtrate such as cobble, slag and coke, " clarification " water that comes through settling tank stream successively filters the infiltration orlop through filtering layer, filtered water enters reuse pool through the bottom water outlet under natural hydraulic pressure, finishes the entire sewage treating processes.But the biofiltration laminar surface is overlying soil also, the plantation greening vegetation.
6. in the sewer catch basin sludge pump is set, treats sewage quantity (as night) more after a little while, open sludge pump, the active sludge in the sludge sump is entered water collecting basin, enter floating bio-bed again and carry out aerobic treatment, and keep the biological bacteria normal growth of bio-carrier.
Positively effect of the present invention is:
1. the integrated construction of sewage treatment structure is used at interval, and compact construction is compared with common sewage work, does not establish pipeline between the Chi Yuchi, and processing unit is simple.Do not need preliminary sedimentation tank or equalizing tank, so construction cost is low, running cost is low.According to measuring and calculating, scale is 300-2000 cubical Sewage treatment systems every day, and floor space only is 98-192 square metre, saves the 1/3-1/2 area than conventional treatment process; Running cost only is every cube of 0.2-0.3 unit, than common saving 1/4-1/3.
2. to adopt polypropylene be that main material is made to bio-carrier, and can reach more than 10 years work-ing life, and its structure is multi-disc, vesicular, and the automatic removing of dirt is not stopped up, and need not clean, and need not change, and once drops into throughout the year and uses.
3. the biological sludge of Chan Shenging is rendered to the biological pond circular treatment again of selecting again, has promptly kept bio-carrier normal growth under the few situation of blowdown flow rate, reduces sludge quantity again to greatest extent, and operation need not be drawn also ordorless pollution when drawing clearly clearly more than 1 year.
4. the bio-carrier specific surface area of Cai Yonging is big, and microbial film, biomass through cultivating can reach 80-100g/m
3, thereby it is high to handle load, the treatment time is short, the standard of water reuse in can reaching in 3-6 hour (as COD≤50mg/L, SS≤10mg/L, BOD
5≤ 20mg/L, NH
4-N≤15mg/L).
5. the floating bio-bed operation scheme is flexible, can decide according to sewage situation and backwater index, can only adopt aerobic floating bio-bed, or the floating bed of two kinds of biologies of anaerobic-aerobic, or the floating bed of anaerobic-anoxic-aerobic three kinds of biologies, except COD, BOD are had the high processing effect, the function of denitrogenation, dephosphorization is arranged separately also, according to the needs of reuse water, regulate the function of each at any time.
In the residential quarter or concentrated living quarters construct native system, make sewage become reuse water on the spot, be used to water spill greening, the carwash of flushing the toilet, air-conditioning cooling, boiler replenishing water, fire-fighting be equipped with water, artificial lake, fountain sight etc., the drinking water source is saved in reuse repeatedly in a large number.
Now be further described again with reference to the accompanying drawings:
Description of drawings
Figure l is an embodiment drainage flow of a native system treating processes floor map.
Fig. 2 is with sequence of flow unfolded elevational schematic view in the native system sewage treatment process.
Fig. 3,4,5 is respectively front view, vertical view and the side-view of spherical biological carrier.
Fig. 6,7,8,9 is respectively front view, vertical view, 6 side-views and the sectional view of cylindricality bio-carrier.
Among the figure: 1-water collecting basin, 2-pump pond, 3-floating bio-bed, 4-stainless steel plate settling tank, 5-biofiltration layer, 6-reuse pool, the 7-sewer catch basin, 8-grid, 9-sump pump, 10-anaerobe carrier, 11-anoxic bio-carrier, 12-aerobe carrier, 13-stainless steel swash plate, 14-hollow billet imbibition land treatment system, 15-sludge pump, the 16-sludge pipe, 17-aerated conduit, 18-reuse water pump.
Embodiment
As seen from Figure 1, Figure 2, handle in the structures, be spaced apart six functional zone, be respectively water collecting basin 1, pump pond 2, floating bio-bed 3, stainless steel plate settling tank 4, biofiltration layer 5, reuse pool 6, and build a sewer catch basin 7 on its next door at a composite wastewater.
Wherein maintain 15% active sludge in the water collecting basin and be provided with 5.0mm grid 8, the foreign material of sewage preliminarily solubilised more than grid filter 5.0mm enter pump pond 2, rise to floating bio-bed 3 with sump pump 9 again.
Biological floating bed 3 is established one of anaerobism floating bed, one of anoxic floating bed, and two of aerobic floating beds, the bed bottom is arranged aerated conduit 17 and is connected pressure fan; Place anaerobe carrier 10, anoxic bio-carrier 11 and the aerobic bio-carrier 12 of volumetric quantity 50% in the bed respectively; The proportion of bio-carrier is 0.95-1.0, is suspended state in bed, and it is mobile to roll with current in sewage during the oxygen supply aeration; Sewage carries out biochemical reaction successively in anaerobic-anoxic-aerobic floating bio-bed, organism obtains degraded; Sewage discharge behind biochemical reaction is to stainless steel settling tank 4.
Stainless steel swash plate 13 is installed in the stainless steel settling tank 4, the thick 1.0mm of steel plate, 60 ° at inclination angle, 100mm is evenly distributed at interval; Build up two funnel-forms at the bottom of the pond, arrange in the funnel that going up sludge pipe 16 leads in the sewer catch basin 7; Slowly precipitation is mobile through stainless steel swash plate 13 from bottom to top in settling tank 4 for sewage, and top " primary water " flows into biofiltration layer 5, and the bottom biological sludge is deposited in the bottom funnel, flow in the sewer catch basin 7 through sludge pipe.
Biofiltration layer 5 is hollow billet imbibition land treatment systems 14, and it is to spread cobble in the bottom in filter tank, is repaving grating filtrate such as coke, slag, green plants on the reclaimed soil kind on the filtering layer on the pebble bed." primary water " of post precipitation directly enters in the filtering layer of biological filter " underground ", filters by the bottommost pebble bed through layer by layer and oozes out, and under natural hydraulic pressure, flows in the reuse pool 6, uses for various uses with water pump 18 water intakings from reuse pool 6.
Fig. 3, Fig. 4, bio-carrier shown in Figure 5 are mainly used in anaerobism and anoxic biofilm carrier, and its structure is the spherule that is formed by the some disk handing-over of vertical and horizontal, sees that from front view it is the cellular hole that front and back communicate, its specific surface area 240-280m
2/ m
3, honeycomb the inside growth microbial film, sewage can flow in honeycomb hole.
Fig. 6, Fig. 7, Fig. 8, bio-carrier shown in Figure 9 are mainly used in the aerobe membrane carrier, its outward appearance is a column, and its structure is that some blades are arranged in catridge, and drum surface is made lattice, communicate before and after front view is seen between the cylinder intra vane, its specific surface area is 360m
2/ m
3, the microbial film of growing on its blade and in the surperficial lattice, sewage can flow in cylinder.
Above-mentioned bio-carrier all is to be that main material is injection molded by polyethylene, its proportion is about 0.98, equates substantially with sewage proportion behind the growth microbial film, so arbitrary position suspends in sewage, can in sewage, flow with current and aeration and roll, carry out biochemical reaction equably.
Be provided with sludge pump 15 in the sewer catch basin 7, the one, work as sewage quantity after a little while, open sludge pump 15, circulate to water collecting basin 1 activated sludge discharged, for the carrier biofilm normal growth of floating bio-bed, the 2nd, when reuse water is once degraded when not reaching the reuse water index, can be by sludge pump 15 again with sewage discharge to water collecting basin 1, through the floating bio-bed degraded that repeatedly circulates, up to reaching the reuse water index.
Claims (6)
1. biotope waste water treating and reutilizing system, it is to build sewage treatment structure in the biotope, structures are divided into water collecting basin, pump pond, floating bio-bed, inclined-plate clarifying basin, biofiltration layer and reuse pool, also have a sewer catch basin in addition; Wherein:
(1) water collecting basin maintains 15% active sludge, and the fine fack of aperture 5.0mm is set, and sewage is tentatively transformed dissolving after grid intercepts inflow pump pond behind the dirt;
(2) in the pump pond sump pump is set, sewage in the pump pond is risen to floating bio-bed; Its feature also comprises:
(3) floating bio-bed is spaced apart that several are function bed, and the bottom is provided with the aerated conduit of even gas distribution and connects with pressure fan, throws in the aerobe carrier of a certain amount of biochemical reaction in the bed respectively; Perhaps throw in anaerobe carrier and aerobic bio-carrier respectively; Perhaps throw in anaerobe carrier, anoxic bio-carrier and aerobic bio-carrier respectively; The bio-carrier injected volume is generally the 30%-40% that the pond holds, and high-concentration sewage is 50-60%; Bio-carrier be by polypropylene be main raw make vesicular object than bigger serface arranged, proportion is 0.95-1.0, its surface is cultivated and is covered with microbial film; Wherein:
(3.1) spherical bio-carrier, its specific surface area are 240-280m
2/ m
3, its surface is cultivated and is covered with anerobe or anoxic bacteria;
(3.2) column bio-carrier, its specific surface area are 340-380m
2/ m
3, its surface is cultivated and is covered with aerobic bacteria;
Sewage through the floating bio-bed degraded flows into inclined-plate clarifying basin;
(4) evenly distributed stainless steel swash plate is set in the inclined-plate clarifying basin, has heavy bucket at the bottom of the pond, heavy bucket bottom is equipped with sludge pipe; Sewage slowly moves up through the swash plate below, and deposition of dirt flows into sewer catch basin through sludge pipe again in heavy bucket; Top " primary water " flows into the biofiltration layer;
(5) the biofiltration layer is to spread cobble, slag and coke grating filtrate in the pond, flows next " clarification " water through filtering layer by layer from settling tank, flows into reuse pool under natural hydraulic pressure, finishes the entire sewage treating processes.
2. biotope as claimed in claim 1 waste water treating and reutilizing system is characterized in that being provided with in the sewer catch basin sludge pump, the sewage not up to standard in active sludge and the settling tank can be entered in the water collecting basin circular treatment by sludge pump.
3. biotope as claimed in claim 1 or 2 waste water treating and reutilizing system is characterized in that floating bio-bed is a 2-4 aerobic floating bio-bed.
4 biotope as claimed in claim 3 waste water treating and reutilizing systems is characterized in that also comprising 1-2 anaerobism floating bio-bed.
5. biotope as claimed in claim 4 waste water treating and reutilizing system is characterized in that also comprising an anoxic floating bio-bed.
6. biotope as claimed in claim 1 waste water treating and reutilizing system is characterized in that reclaimed soil on the biofiltration layer, green plants on the kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023763 CN1230390C (en) | 2004-03-26 | 2004-03-26 | System of treating and reclaiming sewage in biotope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023763 CN1230390C (en) | 2004-03-26 | 2004-03-26 | System of treating and reclaiming sewage in biotope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562824A CN1562824A (en) | 2005-01-12 |
| CN1230390C true CN1230390C (en) | 2005-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410023763 Expired - Fee Related CN1230390C (en) | 2004-03-26 | 2004-03-26 | System of treating and reclaiming sewage in biotope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161053B (en) * | 2006-10-11 | 2011-08-31 | 邱学武 | A system for collecting and processing residence zone sanitary sewage and stormwater for roofs planting |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602538B (en) * | 2009-07-27 | 2011-06-15 | 浙江林学院 | Biogas slurry ecological purification device and biogas slurry ecological purification method |
| CN101863595B (en) * | 2010-06-24 | 2011-11-23 | 河南科技大学 | Landscape type combined domestic sewage purification system |
| CN103121771B (en) * | 2011-11-21 | 2016-08-03 | 上海巴安水务股份有限公司 | The technique of high concentrated organic wastewater advanced treating |
| CN107313620A (en) * | 2016-04-26 | 2017-11-03 | 郝志刚 | A kind of sewage treatment structure |
| CN110980963B (en) * | 2019-11-26 | 2022-04-15 | 浙江永续环境工程有限公司 | Sewage treatment process applying active microbial inoculum |
-
2004
- 2004-03-26 CN CN 200410023763 patent/CN1230390C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161053B (en) * | 2006-10-11 | 2011-08-31 | 邱学武 | A system for collecting and processing residence zone sanitary sewage and stormwater for roofs planting |
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| Publication number | Publication date |
|---|---|
| CN1562824A (en) | 2005-01-12 |
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