CN100415655C - High hydraulic loading underground infiltration sewage treatment multiplex system - Google Patents
High hydraulic loading underground infiltration sewage treatment multiplex system Download PDFInfo
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- CN100415655C CN100415655C CNB2006101225065A CN200610122506A CN100415655C CN 100415655 C CN100415655 C CN 100415655C CN B2006101225065 A CNB2006101225065 A CN B2006101225065A CN 200610122506 A CN200610122506 A CN 200610122506A CN 100415655 C CN100415655 C CN 100415655C
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Abstract
The present invention discloses one kind of composite underground percolated sewage treating system with high hydraulic load. The system consists of a water amount regulating and oil eliminating and depositing unit, an anaerobic digesting and filtering unit, a sewage distributing tank and a high load underground percolating unit connected through water pipeline. The present invention has greatly raised sewage load, expanded application range and lowered engineering cost. The system has low running cost, no need of special land and capacity of producing reuseable intermediate water, and is suitable for in-site treatment of domestic sewage and organic industrial effluent.
Description
Technical field
The invention belongs to the environmental engineering technical field of sewage, particularly a kind of high hydraulic loading underground infiltration sewage treatment multiplex system can be used for sanitary sewage and the processing that can adopt the industrial organic sewage of Wastewater Treated by Activated Sludge Process.
Background technology
China is one of 13 poor-water states.Development along with population growth, urbanization process acceleration, modern industry and urban construction, the water pollution problems of China is also very serious, this not only makes ecotope be subjected to very havoc, and cause the water quality lack of water, thereby further aggravated the shortage of water resources, the drinking water safety and social, the economic Sustainable development of China in serious threat.
China's municipal effluent pollution load surpassed the industrial wastewater pollution load in 1999 first, and the total emission volumn that expects 2010 will reach 1,050 hundred million m
3, but centralized treatment rate in 2002 only 7%.Its major cause is construction cost and the running cost height owing to large-scale wastewater treatment plant, and China's level of economic development is also lower, and is cash-starved, even some sewage work that has built up also can not move because of shortage of funding.What is more, and the sewage network in the many cities of China is incomplete, and the pipe network improving engineering is huge, brings very big difficulty for the collection and treatment of sewage.Therefore, research and develop cost is low, environmental benefit is good sewage on-site disposal techniques energetically and have crucial meaning for the water environment pollution control of China.In addition, the site disposal of sewage helps middle water reuse, the requirement that meets recycling economy and build a conservation-minded society.Polluted water land is handled on the reduction processing cost has special advantages.
Polluted water land disposal method mainly comprises five types of the quick diafiltration of sewage, slow rate, overland flow, wet land system and subsurface infiltrations etc.In these methods, subsurface wastewater infiltration system can not influence the environment and the view on the face of land, can be built in city and biotope.Yet the hydraulic load of existing underground sewage percolating system is little, floor space is big, owing to be subjected to the restriction of land area, is difficult to promote the use of in China.In this system, soil stops up and the oxygen supply deficiency is to limit the major cause of its hydraulic load, and the suspended particulate in the sewage then is the major cause that causes soil to stop up.
Basic skills that the underground biological sewage is handled and principle are that sewage is batched in the soil of certain area by being embedded in subterranean water spraying pipe, sewage is from the downward diafiltration of top aeration zone the time, and it (mainly is water and CO that organic pollutant is wherein resolved into innoxious substance by the aerobic microbiological in the soil
2).Soil on the Sewage treatment systems can be used as nonirrigated farmland, land use for greening, road, court, small and medium-sized car parking lot etc., can not influence environment and view, also not changing the purposes in soil, is best sub-district of economy and environment comprehensive benefit and town sewage site disposal method.Therefore, the U.S. and the Canadian sanitary sewage that has more than 1/3 in the mid-90 adopt this method to handle (Wilhelm et al., 1994, Ground Water 32:905-916), and increases (Rulseh year by year, 2002), more application example is also arranged in Europe and Japan.Yet because soil stops up and the restriction of oxygen supply, the sewage load of legacy system is 1～4cm/d only; Publication number is that the patent of CN2286176Y makes its sewage load bring up to about 10cm/d, and Yu Jie etc. (2004) adopt this technology to set up a pilot system and the hydraulic load of system is brought up to 20cm/d, but greatly reduce its wastewater treatment efficiency.Publication number is that " CN1460649 ", denomination of invention are " efficient anti-blocking underground biological wastewater treatment systems ", oxygen supply by high dispersing particulate organic matter and safeguards system, with the bio-oxidation speed of accelerating particulate organic matter, the crumb structure of safeguarding soil and raising wastewater treatment efficiency, make its sewage load bring up to about 20cm/d.Though this technology has enlarged the scope of application of underground sewage water treatment method to a certain extent, increased the stability of system, because the restriction of land area still is difficult to use in the sub-district, many cities and towns of China.To further increase substantially its sewage load, must take effective and feasible method, before sewage enters subsurface wastewater infiltration system, remove suspended particulate wherein.
Suspended particulate (SS) is one of decontamination index of sewage disposal.In various sewage works, often make the suspended particulate precipitation by in settling tank, adding flocculation agent, not only increase the processing cost of sewage to a great extent, and may cause new pollution.In the polluted water land treatment system, because the organic oxygen-consumption of suspended particle is big, degradation rate is low, accumulates in soil easily, thereby has limited the hydraulic load of system widely, shortens the work-ing life of system.
Summary of the invention
In order to solve defective and the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of high hydraulic loading underground infiltration sewage treatment multiplex system.This composite system can increase substantially the sewage load of subsurface infiltration sewage disposal composite system, reduces engineering cost.
Purpose of the present invention is achieved through the following technical solutions: a kind of high hydraulic loading underground infiltration sewage treatment multiplex system is regulated by the water yield and oil removing precipitation unit (10), anaerobic digestion filtering unit (30), sewage distributor box (45) and high loading subsurface infiltration unit (50) are formed.The described water yield is regulated and is connected by water distribution pipe network (38) with anaerobic digestion filtering unit (30) with oil removing precipitation unit (10), anaerobic digestion filtering unit (30) is connected by the network of drains that catchments (40) with sewage distributor box (45), and sewage distributor box (45) is connected with high loading subsurface infiltration unit (50) by aproll pipe network (57).
Each unit water yield of described composite system is regulated and oil removing precipitation unit (10), anaerobic digestion filtering unit (30), sewage distributor box (45) and high loading subsurface infiltration unit (50) all can be set to buried.
The described water yield is regulated and oil removing precipitation unit (10) is made up of oil removing preliminary precipitation pond (11), settling tank (12), (13) three parts of blowoff basin; Described oil removing preliminary precipitation pond (11) and settling tank (12) link to each other by falling " U " shape pipe (15), and settling tank (12) and blowoff basin (13) keep off mud wall (16) by the water proof of high 20～30cm and be separated by; The sump pump (14) and the control device that draws water can be installed, the unlatching of described sump pump or stop in the blowoff basin (13) by the control of timing device or liquid level meter.
Top at oil removing preliminary precipitation pond (11) and settling tank (12) is equipped with mud-suction hole (21), with regular removing mud wherein; Above sump pump, establish inspection-pit (22), be used for the maintenance of sump pump and control device thereof.
Described anaerobic digestion filtering unit (30) belongs to the underground anaerobic biofilter of upflowing, the bottom and lay anti-seepage material (as concrete all around, plastic cloth), the centre is a filler, filler is followed successively by metalling (31) from bottom to top, cobble layer (32), granule layer (33), layer of sand (34), water conservancy diversion layer (35), sealing coat (36), tectum (20), in metalling (31), bury water distribution pipe network (38) underground, this water distribution pipe network (38) has a port to link to each other with vacuum primingpump (41) by suction pipe (39), in case of necessity can be with in the surplus mud suction sludge sump in the system, described water conservancy diversion layer (35) is a gravel, wherein buries the network of drains that catchments (40) underground.
Described anaerobic digestion filtering unit (30) packing material size of metalling (31), cobble layer (32), granule layer (33), layer of sand (34) from bottom to top reduces successively, and the particle diameter of each layer filler is greater than the intergranular aperture of its adjacent one deck filler that underlies.
Described metalling (31) particle diameter is 3～5cm; The thick about 5cm of described sealing coat (36) is made of bird's-eye gravel; Described water distribution pipe network (38) is made of the pvc pipe that the tube wall both sides have posticum; Described tectum (20) can be cement flooring, surface dust or lawn etc.
Described anaerobic digestion filtering unit (30) can utilize the potential difference between water yield adjusting and oil removing precipitation unit water outlet and the anaerobic digestion filtering unit water outlet to intake automatically, also can adopt the water inlet of sump pump power.When utilizing the potential difference water inlet, can adopt ball valve control flooding velocity; When adopting the power water inlet, continuous and discontinuous water inlet pattern can be arranged.
The aproll pump is installed, the unlatching of this aproll pump or stop to control in the described sewage distributor box (45) by liquid level meter.
Described high loading subsurface infiltration unit (50) is followed successively by tectum (20), aproll-ventilation gravel bed (52), last soil layer (55), ventilation gravel bed (53), following soil layer (56), curb (54) from top to bottom.Be provided with aproll pipe network (57) in described aproll-ventilation gravel bed (52), aproll pipe network (57) has the pvc pipe of aperture, 1.5～2.0 meters of spacings for tube wall; Be provided with ventilation pipe network (58) in the described ventilation gravel bed (53), ventilation pipe network (58) is made of the pvc pipe that tube wall has aperture, 2～3 meters of spacings; Described curb (54) is dark about 15cm, and wide 20～30cm is spaced apart the irrigation canals and ditches network of 2～3m, and curb is by gravpack, and is embedded with collection (row) grid (59); The described soil layer (55) of going up is divided into three layers, and permeability coefficient reduces successively from top to bottom; The permeability coefficient of last soil layer (55) is greater than the permeability coefficient of following soil layer (56).
Described aproll ventilation pipe network (57) and vent-pipe (58) are united to the soil layer blowing air, supply with high loading subsurface infiltration unit (50) oxygen.
The notable feature in high loading subsurface infiltration unit is to adopt aproll-ventilation gravel bed and ventilation gravel bed associating oxygen supply, and soil layer is made of the artificial soil of multilayer that perviousness from top to bottom reduces successively between aproll-ventilation gravel bed and the ventilation gravel bed.The oxygen supply of system is finished by aproll ventilation pipe network and the vent-pipe that has ventilating pit, adopts power ventilation.High loading subsurface wastewater infiltration system artificial soil horizon's bottom is provided with curb, pack gravel wherein, and bury collection (row) water pipe underground.
The unitary soil layer construction of high loading subsurface infiltration of the present invention and principle of work are that the Chinese patent of CN1460649 is similar to publication number substantially, but done the improvement of following several respects: (1) is owing to mainly tackled by last soil layer from the particulate matter of sewage, therefore the permeability coefficient of going up soil layer is greater than following soil layer, with the loading capacity of increase system to external particulate matter; (2) ventilation in the ventilation gravel bed adopts the vent-pipe of band ventilating pit to finish, and so not only be convenient to implement, and the area of individual system can reach hundreds of square metres; (3) in order to guarantee the oxygen supply to system, original aproll pipe network is designed to aproll ventilation pipe network, the ventilation of aproll-ventilation gravel bed and ventilation gravel bed is finished by an exhaust fan or gas blower.
Sewage carries out subsurface infiltration and handles after oil sump oil removing precipitation and anaerobism filtration digestion are regulated and removed to the water yield.Treated sewage can be used for greening, flushing or landscape water etc.The water yield is regulated and the sewage of oil removing precipitation unit utilizes waterhead or water pump to enter the anaerobic digestion filtering unit by the water distribution pipe network, the sewage of anaerobic digestion filtering unit enters the sewage distributor box by the network of drains that catchments, and the sewage of sewage distributor box enters high loading subsurface infiltration unit by the aproll pipe network.
Operational mode of the present invention and principle of work are as follows:
Municipal effluent or community life sewage from blow-off line at first enter water yield adjusting and oil removing precipitation unit, and in oil removing and preliminary precipitation pond, the lipid scum silica frost is upwards floating immediately, and the particulate matter that particle diameter and density are bigger is deposited in the bottom.Sewage further post precipitation in settling tank through oil removing and preliminary precipitation can utilize waterhead or water pump to enter the anaerobic digestion filtering unit by the water distribution pipe network.Sewage is from the upwards slowly migration of bottom of anaerobic digestion filtering unit, and suspended particulate is wherein tackled owing to action of gravity with by packing medium and is trapped, and is decomposed (digestion) by anaerobic bacterium, and pollution load obviously reduces.Top at the anaerobic digestion filtering unit, sewage enters the sewage distributor box by the network of drains that catchments, the surplus mud that is trapped but has little time to digest then regularly turns back to oil removing and preliminary precipitation unit by vacuum primingpump, and is blocked with the filler that prevents the anaerobic digestion filtering unit.When the wastewater level in the sewage distributor box arrives a certain predefined height, the aproll pump startup, when the wastewater level in the sewage distributor box was lower than a certain predefined height, the aproll pump stopped, and makes sewage intermittently enter high loading subsurface infiltration unit.In high loading subsurface infiltration unit, the remainder particulate thing in the sewage is tackled by last soil layer basically, and different and be scattered in each soil layer and on the interface, to increase its catalytic oxidation area, quicken the decomposition of particulate organic matter according to particle diameter.Dissolved organic matter is adsorbed by the artificial soil horizon and is degraded by soil bacteria, NH
4 +Mainly by electronegative absorption such as clay mineral, phosphorus is then removed by absorption and precipitation.The aproll pump moves 4～8 times every day, is no more than 40 minutes at every turn, after the aproll pump quits work, and to underground filtration system power ventilation about 45 minutes.It is more even that this short cycle cloth aqueous mode can make sewage distribute, and the increase artificial soil horizon falls to doing the time.Falling to doing period, the artificial soil horizon is in aerobic environment, and the residual organic matter in the soil is decomposed under the effect of aerobic bacteria, recovers the crumb structure and the perviousness of soil, and makes the NH that is adsorbed
4 +Under the effect of nitrobacteria, be oxidized to nitrate radical, the NH in the soil
4 +Adsorption potential is discharged again; The artificial soil horizon is in anaerobic environment during water distribution, helps the carrying out of denitrification.
The present invention compared with prior art has following advantage and effect: the present invention can increase substantially the sewage load of subsurface infiltration Sewage treatment systems, enlarges the scope of application of this technology, reduces engineering cost.This system operation cost is low, does not need land reserve zone, and middle water can reuse, is applicable to the site disposal of community life sewage and industrial organic sewage.
Existing subsurface infiltration sewage disposal technology (is the Chinese patent of CN2286176Y and CN1460649 as publication number) all needs water yield equalizing tank, therefore, with regard to the required land area of treatment system, the technology of the present invention has increased an anaerobic digestion filtering unit, but increased substantially the hydraulic load of subsurface wastewater infiltration system, and made system more stable.A day to handle 100m
3System be example, adopting publication number is the Chinese patent of CN2286176Y, needs the about 1000m of land area
2Adopting publication number is the Chinese patent of CN1460649, needs land area 425m
2More than; Adopt the present invention, the about 300m of the required land area of total system
2, and, the construction cost of system is reduced greatly because of the scale of subsurface wastewater infiltration system reduces greatly.
Suppose and produce 200 liters of sanitary sewages (standard per capita that is equivalent to the U.S.), average 3 people of each household, the average floor area of building 100m of each household house for each person every day
2, house, sub-district floor space 30% has 15% land area can build subsurface sewage disposal system (its face of land can be planned to greenery patches, parking lot, leisure and athletic ground etc.), average every 100m
2Handle 35m
3Sewage, then average story height are no more than 29 layers sub-district and all can adopt the inventive method to handle its sanitary sewage.If the sub-district dwelling house first floor is built on stilts parking stall, then its underground domestic sewage processing system that is provided with can be realized the site disposal and the reuse of community life sewage at an easy rate.
Description of drawings
Fig. 1 is a high hydraulic loading underground infiltration sewage treatment multiplex system synoptic diagram of the present invention.
(phantom line segments is respectively Fig. 2, Fig. 3, profile position shown in Figure 4 among the figure.)
Fig. 2 regulates and removes oil sump longitudinal diagram (A-B) for the water yield.
Fig. 3 is an anaerobic digestion filtering unit sectional view (C-D).
Fig. 4 is a high loading subsurface wastewater infiltration system cross sectional representation (E-F).
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, high hydraulic loading underground infiltration sewage treatment multiplex system of the present invention is regulated and is removed oil sump 10, anaerobic digestion filtering unit 30, sewage distributor box 45 and high loading subsurface infiltration unit 50 and forms by the water yield, the water yield is regulated and is connected by water distribution pipe network 38 with anaerobic digestion filtering unit 30 with oil removing precipitation unit 10, anaerobic digestion filtering unit 30 is connected by the network of drains 40 that catchments with sewage distributor box 45, and sewage distributor box 45 is connected with high loading subsurface wastewater infiltration system 50 by aproll pipe network 57.Sewage is after oil removing precipitation and anaerobism filtration digestion, and particulate organic matter content wherein reduces greatly, enters high loading subsurface wastewater infiltration system 50 then.
1, oil sump 10 is regulated and removed to the water yield
Because China's cities and towns community life sewage is the shunting discharging basically, laundry, have a shower and kitchen waste water does not enter septic tank, generally do not pass through settling tank yet, wherein often contain more suspended substance and lipid scum silica frost, therefore be necessary the additional sedimentary function of oil removing in water yield equalizing tank.As shown in Figure 2, this water yield is regulated and is removed oil sump 10 and is divided into three parts, i.e. oil removing preliminary precipitation pond 11, settling tank 12, blowoff basin 13.Link by falling " U " shape pipe 15 between oil removing preliminary precipitation pond 11 and the settling tank 12.The volume maximum of settling tank 12, the time that sewage stops is longer, and suspended particulate wherein can further be precipitated.In oil removing and preliminary precipitation pond 11, lipid scum silica frost 17 is upwards floating immediately, and the particulate matter that particle diameter and density are bigger is deposited in the bottom.Be separated by by the retaining mud wall of high 20～30cm between settling tank 12 and the blowoff basin 13.The sump pump 14 and the control device that draws water can be installed, the unlatching of sump pump and stopping in the blowoff basin 13 by the control of timing device or liquid level meter.
The water yield is regulated and oil removing precipitation unit 10 can integral body be buried, and its tectum 20 can be cement flooring, surface dust or lawn etc.; Above oil removing preliminary precipitation pond 11 and settling tank 12, be equipped with mud-suction hole 21, with regular removing mud wherein; Above sump pump, establish inspection-pit 22, be used for the maintenance of sump pump and control device thereof.
2, the anaerobic digestion filtering unit 30
As shown in Figure 3, anaerobic digestion filtering unit 30 belongs to the underground anaerobic biofilter of upflowing, the bottom and lay anti-seepage material (as concrete, plastic cloth) all around, can adopt the bigger higher filler of plastics equal strength of gravel, quartz sand, haydite and hardness, be arranged to multilayered structure.Anaerobic digestion filtering unit 30 bottoms and lay anti-seepage material (as concrete, plastic cloth) all around, the centre is a filler, filler is followed successively by metalling 31, cobble layer 32, granule layer 33, layer of sand 34, water conservancy diversion layer (filler is a gravel) 35, sealing coat 36, tectum 20 from bottom to top, bury water distribution pipe network 38 in the metalling of bottom underground, water distribution pipe network 38 is made of the pvc pipe that the tube wall both sides have posticum.This water distribution pipe network 38 has a port to link to each other with a vacuum primingpump 41 by suction pipe 39, in case of necessity with in the surplus mud suction sludge sump in the system.Bury the network of drains 40 that catchments in the water conservancy diversion layer 35 underground.Metalling 31 particle diameters are 3～5cm, and the sealing coat 36 of a thick about 5cm is arranged between water conservancy diversion layer 35 and tectum 20, are made of bird's-eye gravel.Face of land tectum 20 also can be cement flooring, surface dust or lawn etc.The packing material size of from bottom to top metalling 31 of anaerobic digestion filtering unit 30, cobble layer 32, granule layer 33, layer of sand 34 reduces successively, and the particle diameter of each layer filler is greater than the intergranular aperture of its adjacent one deck filler that underlies.
The potential difference that anaerobic digestion filtering unit 30 can utilize the water yield to regulate and remove between oil sump 10 water outlets and underground anaerobic digestion filtering unit 30 water outlets is intake automatically, also can adopt the water inlet of sump pump power.When utilizing the potential difference water inlet, can adopt ball valve control flooding velocity; When adopting the power water inlet, continuous and discontinuous water inlet pattern can be arranged.
3, the sewage distributor box 45
Be used to store the sewage of handling through anaerobic digestion filtering unit 30, so that regularly, quantitatively distribute sewage to high loading subsurface wastewater infiltration system 50.An aproll pump is installed, the unlatching of this aproll pump and stop to control in the sewage distributor box 45 by liquid level meter.
4, the high loading subsurface wastewater infiltration system 50
As shown in Figure 5, high loading subsurface wastewater infiltration system 50 is followed successively by tectum 20 from top to bottom, aproll-ventilation gravel bed 52, last soil layer 55, ventilation gravel bed 53, following soil layer 56, curb 54, aproll pipe network 57 has the pvc pipe of aperture for tube wall, 1.5～2.0 meters of spacings, place aproll-ventilation gravel bed 52, the vent-pipe 58 that has ventilating pit has the pvc pipe of aperture for tube wall, 2～3 meters of spacings, place ventilation gravel bed 53, curb 54 is dark about 15cm, and wide 20～30cm is spaced apart the irrigation canals and ditches network of 2～3m, wherein by gravpack, and be embedded with collection (row) grid 59; Described all the artificial soil of soil layer 55 and following soil layer 56 of going up for mixing by quartz sand and clay, organophilic clay etc.; Last soil layer is divided into three layers, and permeability coefficient reduces successively from top to bottom, and the permeability coefficient of last soil layer is greater than the permeability coefficient of following soil layer.Aproll pipe network 57 is united to the soil layer blowing air by exhaust fan or gas blower with the vent-pipe 58 that has ventilating pit, supplies with high loading subsurface infiltration unit oxygen.
The notable feature in high loading subsurface infiltration unit 50 is to be adopted as aproll-ventilation gravel bed 52 and the 53 associating oxygen supplys of ventilation gravel bed, and soil layer 55 is made of three layers of artificial soil that perviousness from top to bottom reduces successively between aproll-ventilation gravel bed 52 and the ventilation gravel bed 53.The oxygen supply of system is finished by aproll pipe network 57 and the vent-pipe 58 that has ventilating pit, adopts power ventilation.High loading subsurface wastewater infiltration system artificial soil horizon's bottom is provided with curb 54, pack gravel wherein, and bury collection (row) water pipe 59 underground.
Adopt the technology of the present invention, built up a high loading underground biological sewage Processing Test system in Guangzhou Geochemistry Inst., Chinese Academy of Sciences.Each unit of this composite system all is arranged on underground.Its subsurface infiltration area is 20m
2, intake day processing 8m every day 6 times
3Sewage, the about 28m of total system floor space
2, the flow-time curve of system's water outlet tends towards stability, and does not find blocked sign.Test sewage is Guangzhou geochemical investigation institute community life sewage, and through monitoring analysis repeatedly, its COD, BOD, TN, TP, TSS on average are respectively 318.5mg/l, 160.2mg/l, 34.9mg/l, 6.24mg/l, 175.7mg/l; The corresponding contamination index mean value of system's water outlet is respectively 15.8mg/l, 5.3mg/l, 14.6mg/l, 0.28mg/l, 8.5mg/l; Total clearance of COD, BOD, TSS, TN, TP is respectively 95.0%, 96.7%, 58.2%, 95.2%, 95.5%, and system's water outlet has reached town B-grade sewage treatment plant one-level category-A emission standard (GB8978-1996).The priming cost of sewage disposal is 0.2kwh/m
3Power consumption.More the processing cost of the construction cost of large scale system and unit volume sewage also will descend to some extent.
Claims (10)
1. high hydraulic loading underground infiltration sewage treatment multiplex system, it is characterized in that: regulate and oil removing precipitation unit (10) by the water yield, anaerobic digestion filtering unit (30), sewage distributor box (45) and high loading subsurface infiltration unit (50) are formed, the described water yield is regulated and is connected by water distribution pipe network (38) with anaerobic digestion filtering unit (30) with oil removing precipitation unit (10), anaerobic digestion filtering unit (30) is connected by the network of drains that catchments (40) with sewage distributor box (45), and sewage distributor box (45) is connected with high loading subsurface infiltration unit (50) by aproll pipe network (57).
2. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1 is characterized in that: the described water yield is regulated and oil removing precipitation unit (10) is made up of oil removing preliminary precipitation pond (11), settling tank (12) and (13) three parts of blowoff basin; Described oil removing preliminary precipitation pond (11) and settling tank (12) link to each other by falling " U " shape pipe (15), and settling tank (12) and blowoff basin (13) keep off mud wall (16) by the water proof of high 20～30cm and be separated by; The sump pump (14) and the control device that draws water are installed, the unlatching of described sump pump or stop to control in the blowoff basin (13) by timing device or liquid level meter.
3. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1 is characterized in that: the top of described oil removing preliminary precipitation pond (11) and settling tank (12) is equipped with mud-suction hole (21); Above water pump, establish inspection-pit (22).
4. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1, it is characterized in that: described anaerobic digestion filtering unit (30) bottom and lay anti-seepage material all around, the centre is a filler, filler is followed successively by metalling (31), cobble layer (32), granule layer (33), layer of sand (34), water conservancy diversion layer (35), sealing coat (36), tectum (20) from bottom to top, bury water distribution pipe network (38) in metalling underground, this water distribution pipe network (38) has a port to link to each other with vacuum primingpump (41) by suction pipe (39); Bury the network of drains that catchments (40) in the described water conservancy diversion layer (35) underground.
5. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 4, it is characterized in that: described anaerobic digestion filtering unit (30) packing material size of metalling (31), cobble layer (32), granule layer (33), layer of sand (34) from bottom to top reduces successively, and the particle diameter of each layer filler is greater than the intergranular aperture of its adjacent one deck filler that underlies.
6. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 4 is characterized in that: described metalling (31) particle diameter is 3～5cm; The thick 5cm of described sealing coat (36) is made of bird's-eye gravel; Described water distribution pipe network (38) is made of the pvc pipe that the tube wall both sides have posticum; Described tectum (20) is cement flooring, surface dust or lawn.
7. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1, it is characterized in that: described anaerobic digestion filtering unit (30) utilizes the potential difference between water yield adjusting and oil removing precipitation unit (10) water outlet and anaerobic digestion filtering unit (30) water outlet to intake automatically, or adopts the water inlet of sump pump power.
8. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1 is characterized in that: the aproll pump is installed, the unlatching of this aproll pump or stop to be controlled by liquid level meter in the described sewage distributor box (45).
9. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1 is characterized in that: described high loading subsurface infiltration unit (50) is followed successively by tectum (20), aproll-ventilation gravel bed (52), last soil layer (55), ventilation gravel bed (53), following soil layer (56), curb (54) from top to bottom; Be provided with aproll pipe network (57) in described aproll-ventilation gravel bed (52), aproll pipe network (57) has the pvc pipe of aperture, 1.5～2.0 meters of spacings for tube wall; Be provided with vent-pipe (58) in the described ventilation gravel bed (53), vent-pipe (58) has the pvc pipe of aperture, 2～3 meters of spacings for tube wall; Described curb (54) is dark 15cm, and wide 20～30cm is spaced apart the irrigation canals and ditches network of 2～3m, pack gravel wherein, and be embedded with collection (row) grid (59); The described soil layer (55) of going up is divided into three layers, and permeability coefficient reduces successively from top to bottom; The described permeability coefficient of going up the permeability coefficient of soil layer (55) greater than following soil layer (56).
10. high hydraulic loading underground infiltration sewage treatment multiplex system according to claim 1, it is characterized in that: described aproll pipe network (57) and the vent-pipe (58) that has a ventilating pit are united to the soil layer blowing air, supply with high loading subsurface infiltration unit (50) oxygen.
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| CNB2006101225065A CN100415655C (en) | 2006-09-29 | 2006-09-29 | High hydraulic loading underground infiltration sewage treatment multiplex system |
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| CN100415655C true CN100415655C (en) | 2008-09-03 |
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| CN102432105B (en) * | 2011-11-09 | 2013-05-29 | 中国科学院广州地球化学研究所 | Method and device for efficiently denitriding and dephosphorizing underground percolation sewage |
| CN106336084B (en) * | 2016-10-31 | 2019-03-12 | 河南科技学院 | A kind of multimedium underground diafiltration is back to the processing unit of water for scenic environment use |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2286176Y (en) * | 1997-02-28 | 1998-07-15 | 江鹰 | Antiplugging soil height sewage treatment apparatus |
| CN1460649A (en) * | 2003-06-05 | 2003-12-10 | 中国科学院广州地球化学研究所 | High-effective block-resisting soil biological waste water treatment system |
-
2006
- 2006-09-29 CN CNB2006101225065A patent/CN100415655C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2286176Y (en) * | 1997-02-28 | 1998-07-15 | 江鹰 | Antiplugging soil height sewage treatment apparatus |
| CN1460649A (en) * | 2003-06-05 | 2003-12-10 | 中国科学院广州地球化学研究所 | High-effective block-resisting soil biological waste water treatment system |
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|---|---|
| CN1927733A (en) | 2007-03-14 |
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