CN102311213B - Sewage source processing system and processing method - Google Patents

Abstract

The invention relates to the technical field of sewage processing, more specifically to a sewage source processing system for processing life sewage and a processing method, wherein the sewage source processing system comprises sewage drainage main pipes, source sewage drainage branch pipes, shunting wells, a water treatment wetland and a digestion pool. The sewage processing method provided by the invention comprises the following steps of: respectively constructing sewage source processing systems at each settlement by the adoption of a distributed processing mode; arranging the shunting wells at entrance points of the sewage drainage main pipes, introducing sewage into the shunting wells through the source drainage branch pipes for the shunting of part of water body, purifying the shunted water body thorough the water treatment wetland, and condensing sewage which undergoes shunting of part of the water body into a slurry; and carrying out an anaerobe bio-fermentation treatment on the slurry to generate biogas. The sewage source processing system and method disclosed by the invention has advantages of no peculiar smell in the environment during the sewage processing process, no second environmental pollution, low investment and high processing efficiency. By the adoption of the system and the method, the environmental protection requirement on zero discharge can be achieved.

Description

Sewage source treatment system and treatment process

Technical field

The present invention relates to technical field of sewage, be specifically related to a kind of Sewage treatment systems and treatment process that sanitary sewage is processed.

Background technology

At present, the sewage disposal that mankind's activity produces has developed into residential quarter septic tank primary treatment discharge water by the centralized sewage disposal system of municipal effluent drainage pipe network to sewage work, processes backward rivers discharging up to standard.But because centralized sewage disposal system Facilities Construction input is huge; not only cause heavy construction to drop into pressure to relevant enterprise; its large-scale urban construction has also formed the heavy financial burden of government, and because the formed huge financial burden of centralized sewage disposal system Facilities Construction and great quantities make the city environmental protection Facilities Construction not catch up with all the time the urban construction and development.And this centralized sewage disposal system when the huge construction input of net is done in drainage, also makes the raising of wastewater treatment effluent quality degree up to standard become extremely difficult because the excessive of sewage concentrated.Existing centralized processing system comprises following defective:

1) place, dirty source utilizes septic tank, the simple filtration treatment of methane-generating pit to form rate of spoilage and septic matter solubleness that long hydraulic retention has increased water body organism;

2) septic tank, methane-generating pit overcurrent water body cause a large amount of calorific losss and anaerobe flora density to reduce, and affect the organism biotransformation efficiency;

3) can not effectively utilize green space resource to carry out the water treatment of ecological circulation formula;

4) focus on the facility System Construction of method complicated, drops into hugely, without repaying, operation and maintenance cost is high, can't set up effective benefit economy circulating system substantially for facility operation;

5) focus on the Facilities Construction disposable fund inputs that need to concentrate, a large amount of of method, except the prefecture-level above finance of national policy dropped into, small towns street local government and enterprise dropped into ability without the finance of setting up the complete process system Construction;

6) take up an area greatly the municipal sewage plant, and equipment requirements is high, effluent quality difficulty up to standard;

7) the urban pipe network system of sewage drainage and other urban pipe network are built interlaced, interference, become the technological difficulties of urban construction;

8) municipal sewage plant is away from the urban district, and the sewage drainage has not only increased the construction input of drainage pipe network at a distance, has also increased the difficulty of Freshwater resources recycle after processing simultaneously.

Summary of the invention

In view of this, in order addressing the above problem, to the invention discloses the dirty treatment system of a provenance, can to set up the modular low input of local at dirty place, the source that sewage produces, high efficiency sewerage ecological circulating treating system, thus substantially reach zero emission requirement.

The object of the present invention is achieved like this: the sewage source treatment system comprises

Sewage drainage main line pipe;

Sewage drainage arm in source is used for sewage is introduced shunting well;

Shunting well, comprise the shunting well cavity that is surrounded into by the shunting borehole wall, be provided with sewage main line inlet tube interface, sewage main line delivery pipe interface on the described shunting borehole wall, shunting borehole wall top arranges active sewage inducting tubes mouth and spillway, and described source sewage drainage arm is communicated with the shunting well cavity by source sewage inducting tubes mouth; Described shunting well comprises at least two-stage, and the sewage main line delivery pipe interface of upper level shunting well is communicated with by sewage drainage main line pipe with the sewage main line inlet tube interface of next stage shunting well;

Water treatment wetland, the water inlet of described water treatment wetland is communicated with the spillway of shunting well, and the water that spillway is overflowed carries out purifying treatment;

Digester is arranged at sewage drainage main line pipe terminal, and the concentrated sewage slurry of discharging in order to hold sewage drainage main line pipe carries out anaerobic bacterial fermentation to the sewage slurry, produces biogas.

Further, when shunting well was distributed in the hillside fields, sewage drainage main line pipe caliber was less than source sewage drainage branch diameter, and when shunting well was distributed in the level land, sewage drainage main line pipe caliber was less than or equal to source sewage drainage branch diameter.

Further, when sewage treatment shunting well is multistage when being distributed in the level land, along water (flow) direction, shunting well cavitys at different levels are deepened successively.

Further, also be distributed with the water storage shunting well in the pipe of described sewage drainage main line, shunting well cavity one side of described water storage shunting well also is provided with screened well chamber and retaining well chamber, is communicated with by the screened well chamber between shunting well cavity and the retaining well chamber; The borehole wall between shunting well cavity and the screened well chamber is that hollow brick is built into, partition walls top between screened well chamber and the retaining well chamber adopts that aerated concrete brickly becomes, the bottom adopts the aperture hollow brick to be built into, the carbon slag is filled on top, screened well chamber, the under-filled filter sand of crossing, gravel is filled in bottom, retaining well chamber.

Further, described water treatment wetland comprises phreatic zone, vegetation plantation layer, the clay seam that blocks water, dam guiding undercurrent ditch and water reservoir, and described phreatic zone links to each other with the spillway of shunting well, fills filtering material in the phreatic zone, cover vegetation plantation layer on the ditch, the phreatic zone bottom is the clay seam that blocks water; The described guiding undercurrent ditch that dams is arranged at an end of vegetation plantation layer, and the guiding of damming undercurrent ditch is communicated with water reservoir in the wetland.

Further, described water treatment wetland is provided with one or more levels, at final stage water treatment wetland end water reservoir is set, and the water reservoir of final stage water treatment wetland is communicated with water cleaning systems.

Further, described digester comprises the dirty chamber of collection, apparatus cavity, instrument chamber and digestion chamber, the position of the dirty chamber of described collection is lower than the final stage shunting well, collecting dirty chamber is communicated with the sewage main line delivery pipe interface of final stage shunting well by pipeline, be provided with the dirty shifting pump of collection in the described apparatus cavity, the inlet pipe of the dirty shifting pump of described collection is communicated with the dirty chamber of collection, going out pipe is communicated with the dirt entrance that is positioned at digestion chamber upper chamber, described digestion chamber is divided into up and down chamber by a dividing plate that tilts, and the least significant end of described dividing plate is provided with two connected entrances.

Further, also be provided with pond material recycle pump in the described apparatus cavity, the inlet pipe of described pond material recycle pump is communicated with the lower chambers of digestion chamber, and the pipe that goes out of recycle pump is communicated with the entrance that is positioned at digestion chamber upper chamber.

The invention also discloses a kind of sewage source treatment process, comprise the steps:

1) adopts the distributing processing mode, build respectively the sewage source treatment system in each agglomeration;

2) the remittance Node configuration shunting well in the pipeline of sewage drainage main line, sewage is introduced shunting well by source sewage drainage arm, distribute the part water body, by water treatment wetland the water body that distributes is purified, the sewage concentration that divides the part water body that pours off is the dirt slurry;

3) described dirt slurry is carried out the anerobe biological fermentation and process, produce biogas.

Further, step 2) in, the multi-stage diffluence well is set, repeatedly shunt concentrated to sewage.。

Beneficial effect of the present invention is as follows:

1) source sewage is implemented water, the dirty separation in extremely short hydraulic detention time, hang down dustiness source sewage body in the sewage more than 99% and shunted in the wetland processing by the shunting well filtration, the low dustiness water body of shunting well shunting is processed and is returned in controlled artificial swamp eubiosis treated state;

2) being formed with to be beneficial to and using pump power to implement less energy-consumption to shift of low discharge, high-concentration sewage effectively overcomes the ubiquitous sewage treatment process in the plains region not Flowing Hard problem that occurs of foot phenomenon of drop that flows when greatly reducing energy consumption;

3) digester pond material adopts pump power to carry out intermittently, regularly, periodically the pump circulation is stirred, when improving organic dirt biological transformation ratio, conversion rate and stablize the biogas output pressure for scum rely on scum pipe automatically removing convenience is provided;

4) owing to only there being the organic dirt sewage slurry about 1% to enter digester in the native sewage water, the useful volume rate of the dirty biochemical treatment facility in source is greatly improved, thereby when guaranteeing the Facilities Construction quality, has reduced the input that the target engineering is built in environmental protection project;

5) water outlet after water treatment wetland is processed by water quality hierarchical storage Effective Raise the scope of application of recycle of water resources, reduced water resources recycle Facilities Construction input cost;

6) the set effect of zero release unit of the local formula eubiosis circular treatment of sealing will progressively replace and take the municipal sewage plant as core, large-scale sewage network system, the existing municipal sewage treatment system of agglomeration, residential quarter septic tank as supporting take the city, the cancellation of existing municipal sewage treatment System Construction has not only alleviated national urban construction and has dropped into burden, has also eliminated important technology barrier for physical construction planning.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing:

Fig. 1 shows sewage source treatment system structural representation;

Fig. 2 shows shunting well two dimensional structure schematic diagram;

Fig. 3 shows the A-A diagrammatic cross-section of Fig. 2;

Fig. 4 shows the B-B diagrammatic cross-section of Fig. 2;

Fig. 5 shows dark chamber shunting well structural representation;

Fig. 6 shows dark chamber shunting well structural representation;

Fig. 7 shows the structural representation of final stage shunting well;

Fig. 8 shows water treatment wetland two dimensional structure schematic diagram;

Fig. 9 shows the water treatment wetland sectional structure chart;

Figure 10 shows the structural representation of water reservoir and surrounding enviroment;

Figure 11 shows the A-A diagrammatic cross-section of Figure 10;

Figure 12 shows the structural representation of water cleaning systems;

Figure 13 shows digester horizontal section schematic diagram;

Figure 14 shows digester longitudinal profile schematic diagram

Figure 15 shows the partial cutaway schematic of material loop structure in pond in the digester;

Figure 16 shows the partial cutaway schematic of lower chambers and air collecting chamber connectivity structure in the digester;

Figure 17 shows the partial cutaway schematic that collects dirty chamber and air collecting chamber connectivity structure in the digester.

Embodiment

Below will be described in detail the preferred embodiments of the present invention.

Referring to Fig. 1, the sewage source treatment system of the present embodiment comprises sewage drainage main line pipe 1, source sewage drainage arm 2, shunting well 3, digester 4, water treatment wetland 5 and water cleaning systems 6.

Referring to Fig. 2,3,4, described shunting well, comprise the shunting well cavity 204 that is surrounded into by the shunting borehole wall 206, the described shunting borehole wall 206 main bodys are by brick one-tenth, the both sides of the described shunting borehole wall 206 bottoms are provided with sewage main line inlet tube interface 201, sewage main line delivery pipe interface 202, well lid 207 belows on the shunting borehole wall 206 tops arrange active sewage inducting tubes mouth 203 and spillway 205, described source sewage drainage arm is communicated with shunting well cavity 204 by source sewage inducting tubes mouth 203, untreated sewage is introduced shunting well, shunting well cavity 204 is by sewage main line inlet tube interface 201, source sewage inducting tubes interface 203 carries out the sewage introducing and confluxes, connect sewage main line delivery pipe by sewage main line delivery pipe interface 202 and carry out sewage discharge to the next stage shunting well, carry out the water body shunting by spillway 205.Spillway 205 is made of the aperture hollow brick, and is communicated with the phreatic zone of water treatment wetland.

In the drainage pipeline of level land small drop geographical environment, the shunting well well chamber degree of depth increases progressively successively with the extension of pipeline, form shunting wells at different levels shaft bottom drop, sewage drainage main line pipe adopts relative caliber greater than drainage main line, hillside fields pipe, avoid the sewage low voltage difference to flow and form the precipitation obstruction, also strengthened simultaneously the precipitation capacity of pipeline, source sewage imports mouth, and the chamber lid is lower has guaranteed that source sewage carries out the water body shunting in the shortest hydraulic detention time with being arranged on spillway.The shunting well that has increased the well chamber degree of depth is called dark chamber shunting well, referring to Fig. 5,6.And common shallow chamber shunting well is applicable to sewage drainage pipe network system use in the large drop geographical environment in hillside fields, its sewage main line discharge outlet adopts small-bore (DN110mm), source sewage intake adopts heavy caliber (DN160mm), utilize water, solid mixture in the full packages sewage effluent of head pressure main line, hillside fields, utilize the water preventing ability of pipe with small pipe diameter to implement the water body shunting.

Referring to Fig. 7, the water storage shunting well is that the side at shunting well is provided with retaining well 307 and filtering chamber 306, the borehole wall of shunting well is built into by the aperture hollow brick, can be with water infiltration chamber 306, coarsness carbon slag is filled on filtering chamber 306 tops, the under-filled filter sand of crossing, retaining well 307 and the good water permeability aerated concrete of partition wall 310 employings of filtering chamber 306 are brick to be become.

Its shunting well cavity 204 and storage chamber 307 are separated by filtering chamber 306, the sewage water body that enters shunting well cavity 204 passes through and enters storage chamber 307 after filter chamber 306 filters, the sewage intake 201 bore 160mm of shunting well cavity 204, sewage slurry discharge outlet 202 bore 110mm, divide water cavity wall 305 aperture hollow brick masonries, filtering chamber 306 filtering material top coarsness carbon slags are filled, storage chamber 307 bottoms were filter sand 309, the borehole wall 301 between shunting well cavity 204 and the filtering chamber 306 is built into by the aperture hollow brick, and storage chamber 307 adopts good water permeability aerated concrete brick with filtering chamber 306 partition walls 310.The retaining of storage chamber adopts pump power to shift, and water level reduces mobile raising of deposition of dirt in the hydraulic pressure official post sewage drainage main line pipe that forms when the storage chamber retaining is shifted, and storage chamber water pump 308 causes water treatment wetland with sewage and processes.

Referring to Fig. 8,9, described water treatment wetland, effect is shunting well to be distributed water body utilize vegetation and soil to carry out the purifying treatment of ecosystem revivification formula, water treatment wetland is the green land with purifying water process function, described water treatment wetland comprises phreatic zone 401, vegetation plantation layer 402, clay seam 403 blocks water, guiding undercurrent ditch 405 and water reservoir 405 dam, shunting well 3 is distributed in the water treatment wetland, sewage drainage main line pipe 1, sewage drainage arm 2 in source is communicated with shunting well 3, described phreatic zone 401 links to each other with the spillway of shunting well 3,401 fill filtering material in the phreatic zone, cover vegetation plantation layer 402 on the ditch, phreatic zone 401 bottoms are the clay seams 403 that block water; The described guiding undercurrent ditch 405 that dams is arranged at an end of vegetation plantation layer 402, and the guiding of damming undercurrent ditch 405 is communicated with water reservoir 409.When the interflow amount that enters shunting well when sewage drainage main line pipe, native sewage water drainage arm goes out the aquifer yield of water conduit tube greater than shunting well, water in the shunting well can be overflowed by spillway, overflow water and filter diffuse seepage in vegetation plantation layer 402 through the phreatic zone 401 of water treatment wetland, when wandering water is flowed through without drop level land wetland, can form the sudden and violent oxygen band 406 of overland flow of water, the cross flow current can form sudden and violent oxygen cascade 407 when gradient drop wall, the guiding of damming undercurrent ditch 405 can the water drainage after wetland is processed enter water reservoir 409 after sand filtration well 408 essences are filtered.

Referring to Figure 10,11, described water reservoir comprises storage chamber 502, described storage chamber 502 is communicated with the sand filtration well 407 of pool side by water-in 501, by rising pipe 503 water outlets, 506 rows are become silted up by desilting tube, rising pipe 503, desilting tube 506 all are arranged in the water reservoir body of wall, and rising pipe 503 is rising pipes of water reservoir cycling use of water, and the silt water of desilting tube 506 dischargings is as the subdistrict greening water.

Described water cleaning systems, be used for the water body after the water treatment wetland processing is further purified, referring to Figure 12, the lower sidewall of water reservoir 409 has the infiltration of being made by husky brick or the good object of other water permeability to filter wall 601, the opposite side that wall 601 is filtered in infiltration is clear water well 604, be provided with ultra-filtration membrane water purifying plant 605 in the clear water well 604, the water outlet of ultra-filtration membrane water purifying plant 605 is communicated with by the water inlet of reverse osmosis power-driven pump 606 with reverse osmosis membrane water purifying plant 608, and the water outlet of reverse osmosis membrane water purifying plant 608 is communicated with the water inlet of direct-drinking water water tank 609.For eliminating peculiar smell or doing further germicidal treatment, chemical feed pipe 610 can be set in clear water well 604, for discharging the precipitation in the clear water well 604, a blow-off pipe 602 can be set also.

Referring to Figure 12-Figure 17, described digester is used for storing and carrying out the dirt slurry that the bio-digestion shunting well is discharged, and dirt is carried out the bio anaerobic fermentation transform generation biogas.Described digester comprises apparatus cavity 804, metering house 805, the dirty chamber 803 of collection and digestion chamber, the position of the dirty chamber 803 of described collection is lower than the final stage shunting well, collecting dirty chamber 803 is communicated with the sewage main line delivery pipe interface of final stage shunting well by pipeline 802, described digestion chamber is divided into upper chamber 801 and lower chambers 828 by a dividing plate 830 that tilts, described dividing plate 830 is higher than apart from a dirt entrance end far away apart from the nearer end of dirt slurry entrance, and a minimum end of dividing plate 830 is provided with and is communicated with the up and down connected entrance 825 of chamber.Be provided with the dirty shifting pump 810 of collection in the described apparatus cavity 804, the inlet pipe of the dirty shifting pump 810 of described collection is communicated with the dirty chamber 803 of collection, going out pipe is communicated with the dirt entrance 812 that is positioned at digestion chamber upper chamber 801, collect dirty shifting pump 810 and will collect soil transfer in the dirty chamber 803 to digestion chamber upper chamber 801, dirt is under action of gravity, slide along dividing plate 830, enter lower chambers 828 by connected entrance 825; Also be provided with pond material recycle pump 817 in the described apparatus cavity 804, the inlet pipe of described pond material recycle pump 817 is communicated with the lower chambers of digestion chamber, the pipe that goes out of pond material recycle pump 817 is communicated with the entrance that is positioned at digestion chamber upper chamber, pump circulation by dirt can make the biogas bubble of detention in the dirt overflow fast, improves greatly biogas air pressure and fermentation efficiency.For stablizing the biogas output pressure, be provided with a pressure stabilizing cavity 823 in the digestion chamber upper chamber 801, pressure stabilizing cavity is provided with connected entrance 824 with lower chambers 828 in the least significant end of dividing plate 830, described pressure stabilizing cavity is by body of wall and 801 isolation of digestion chamber upper chamber, upper chamber 801 can be described as air collecting chamber 822 except the other parts of pressure stabilizing cavity 823, body of wall bottom between pressure stabilizing cavity 823 and the air collecting chamber 822 is become by the brick of good air permeability, form ventilation part 827, pressure stabilizing cavity 823 tops are provided with supernatant water spillway 829, spillway 829 usefulness aerated concrete bricks cover, mulching plant soil layer on the aerated concrete brick, digestion chamber upper chamber 801 biogas are pressed when increasing to certain value, supernatant water is overflowed in wetland by supernatant water spillway 829 seepage flow in the pressure stabilizing cavity 823, the interior biogas of digester this moment presses speedup to reduce, biogas is pressed when forcing down the digester liquid level to ventilation part 827 height, and biogas is released by ventilation part 827 and produced bubble in the voltage stabilizing chamber and overflow from voltage stabilizing chamber liquid level and digester biogas is pressed no longer rise; When the biogas pressure makes its pressure decreased because of output, pressure stabilizing cavity 823 interior supernatant waters are refluxed in lower chambers 828 by connected entrance 824, the low speed of biogas pressure drop is slowed down, and when the biogas pressure is reduced to certain value, the dirty shifting pump 810 of the low pressure signal enabling collection of biogas pressure sensor and pond material recycle pump 817, material by accumulated filth cavity shifts filling, the digester Matter Transfer improves factor of created gase, stablizes the biogas output pressure.The top in lower chambers 828 and the dirty chamber 803 of collection is communicated with air collecting chamber 822 by ventilative pipeline 834,831 respectively, and then the interior biogas of air collecting chamber 822 exported via instrumentations such as the biogas vacuum breaker of metering house's 805 interior installations, biogas pressure sensor output, biogas output flow meter, biogas output pressure setters by biogas output tube 837.Pond material circulating line in apparatus cavity arranges threeway connection pool material circulation tube and goes out pipe and scum pipe and pipe valve, and scum pipe and pipe valve are used for deslagging.Material recycle pump in pond moves control according to the pressure signal that the biogas pressure sensor output obtains, and crosses when low pressure signal when the biogas output pressure and opens pond material recycle pump, and pressure signal is closed pond material recycle pump when the biogas output pressure is too high.

Sewage source treatment process of the present invention is: the dirty treatment system in source of setting up the circulating ecosystem revivification purification of local take human compact community as the unit, progressively substitute the sewage network of existing " large, concentrated " and the Sewage treatment systems that sewage work forms to reach the completely object element group's of sewage zero-discharge effect set, the method comprises the steps:

1) rationally utilize geographical environmental condition to be combined as the local unit in each agglomeration with single residential quarter or a plurality of residential quarter, the sewage source treatment system is built respectively in each local unit;

2) the remittance Node configuration shunting well in the pipeline of sewage drainage main line, substitute existing source, Lou Dong unit sewage convergence inspection well comprehensively, sewage is introduced shunting well by source sewage drainage arm, distribute the part water body, by water treatment wetland the water body that distributes is purified, the sewage concentration that divides the part water body that pours off is the dirt slurry; The multi-stage diffluence well can be set repeatedly to be shunted concentrated; Adopt drainage main line pipe pipe with small pipe diameter in the hillside fields drainage pipe network, source sewage imports the mode of Large Diameter Pipeline and guarantees that drainage main line pipe is in the full packages drainage all the time, shunting well is in the water that has water to divide, dirty minute stream mode; The shunting well depth that adopts the chamber degree of depth progressively to increase in the drainage pipe network of level land small drop environment compiles node as sewage, with greater than or be equivalent to being arranged on of drainage main line, hillside fields caliber and improve it and precipitate the clog-free subsidence volumn amount that increases mobile the time; The mode that leaches the water pump transfer with the water storage shunting well improves settlement of sewage at the flow effect of drainage main line pipe;

Described water treatment wetland is with the phreatic zone of arrowband structure, the clay Belt blocks water, the guiding undercurrent ditch that dams that filtering material is filled, the sudden and violent oxygen wall of cascade, the organic assembling construction of Landscape Water System has the water treatment wetland for the treatment of function, in water treatment wetland, minute root system of plant layer of flowing water big area drainage under the wetland shallow layer surface that the phreatic zone that utilizes the arrowband structure is told shunting well carries out organic vegetation and absorbs water treatment, utilize the weak perviousness of clay Belt water to block water to raise the earth's surface water level and form the sudden and violent oxygen in ultra-thin water body earth's surface, utilize the sudden and violent oxygen wall of cascade, Landscape Water System improves the sudden and violent oxygen degree of water body, and water carried out harmful cross flow of the also anti-water-stop body of oriented water conservancy diversion after the guiding undercurrent ditch that dams that utilization is filled by filtering material was processed wetland; The water behind the wetland purification of processing also can produce direct-drinking water by the purifying treatment that water cleaning systems carry out less energy-consumption;

3) described dirt slurry is carried out the anerobe biological fermentation in digester and process, produce biogas; The dirty chamber of collection and the quantitative tranfer system of pump power are set in the described digester increase substantially the organic dirt concentration that enters bio-digestion device gastrovascular cavity, thereby improve the useful volume of bio-digestion device and improve the envrionment temperature in bio-digestion chamber with the overcurrent effect of minimum; Utilize the change of level of pressure stabilizing cavity to realize the Non-energy-consumption methane voltage-stabilizing; Utilize pond material recycle pump that bio-digestion device gastrovascular cavity pond material is carried out the pump power circulation, substitute traditional mechanical type with the mobile stirring of Matter Transfer and stir; The biogas that utilizes the biogas pressure intelligent control instrument to extract pushes back the running status of poor electric signal controlled circulation pump, the density period that ordered control biogas particulate bubble discharges when reaching the mobile raising of Matter Transfer organism biotransformation efficiency purpose, thereby the output pressure of stable set air chamber.

The above only preferably is not limited to the present invention for of the present invention, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (10)

1. the sewage source treatment system is characterized in that: comprise

Sewage drainage main line pipe;

Sewage drainage arm in source is used for sewage is introduced shunting well;

Shunting well, comprise the shunting well cavity that is surrounded into by the shunting borehole wall, be provided with sewage main line inlet tube interface, sewage main line delivery pipe interface on the described shunting borehole wall, shunting borehole wall top arranges active sewage inducting tubes mouth and spillway, and described source sewage drainage arm is communicated with the shunting well cavity by source sewage inducting tubes mouth; Described shunting well comprises at least two-stage, and the sewage main line delivery pipe interface of upper level shunting well is communicated with by sewage drainage main line pipe with the sewage main line inlet tube interface of next stage shunting well;

Water treatment wetland, the water inlet of described water treatment wetland is communicated with the spillway of shunting well, and the water that spillway is overflowed carries out purifying treatment;

Digester is arranged at sewage drainage main line pipe terminal, and the concentrated sewage slurry of discharging in order to hold sewage drainage main line pipe carries out anaerobic bacterial fermentation to the sewage slurry, produces biogas.

2. sewage source treatment system as claimed in claim 1, it is characterized in that: when shunting well is distributed in the hillside fields, sewage drainage main line pipe caliber is less than source sewage drainage branch diameter, and when shunting well was distributed in the level land, sewage drainage main line pipe caliber was less than or equal to source sewage drainage branch diameter.

3. sewage source treatment system as claimed in claim 2 is characterized in that: when sewage treatment shunting well is multistage when being distributed in the level land, along water (flow) direction, shunting well cavitys at different levels are deepened successively.

4. sewage source treatment system as claimed in claim 3, it is characterized in that: also be distributed with the water storage shunting well in the pipe of described sewage drainage main line, shunting well cavity one side of described water storage shunting well also is provided with screened well chamber and retaining well chamber, is communicated with by the screened well chamber between shunting well cavity and the retaining well chamber; The borehole wall between shunting well cavity and the screened well chamber is that hollow brick is built into, partition walls top between screened well chamber and the retaining well chamber adopts that aerated concrete brickly becomes, the bottom adopts the aperture hollow brick to be built into, the carbon slag is filled on top, screened well chamber, the under-filled filter sand of crossing, gravel is filled in bottom, retaining well chamber.

5. sewage source treatment system as claimed in claim 1, it is characterized in that: described water treatment wetland comprises phreatic zone, vegetation plantation layer, the clay seam that blocks water, guiding undercurrent ditch and water reservoir dam, described phreatic zone links to each other with the spillway of shunting well, fill filtering material in the phreatic zone, cover vegetation plantation layer on the ditch, the phreatic zone bottom is the clay seam that blocks water; The described guiding undercurrent ditch that dams is arranged at an end of vegetation plantation layer, and the guiding of damming undercurrent ditch is communicated with water reservoir in the wetland.

6. sewage source treatment system as claimed in claim 5, it is characterized in that: described water treatment wetland is provided with one or more levels, at final stage water treatment wetland end water reservoir is set, and the water reservoir of final stage water treatment wetland is communicated with water cleaning systems.

7. such as each described sewage source treatment system in the claim 1 to 6, it is characterized in that: described digester comprises the dirty chamber of collection, apparatus cavity, instrument chamber and digestion chamber, the position of the dirty chamber of described collection is lower than the final stage shunting well, collecting dirty chamber is communicated with the sewage main line delivery pipe interface of final stage shunting well by pipeline, be provided with the dirty shifting pump of collection in the described apparatus cavity, the inlet pipe of the dirty shifting pump of described collection is communicated with the dirty chamber of collection, going out pipe is communicated with the dirt entrance that is positioned at digestion chamber upper chamber, described digestion chamber is divided into up and down chamber by a dividing plate that tilts, and the least significant end of described dividing plate is provided with two connected entrances.

8. sewage source treatment system as claimed in claim 7, it is characterized in that: also be provided with pond material recycle pump in the described apparatus cavity, the inlet pipe of described pond material recycle pump is communicated with the lower chambers of digestion chamber, and the pipe that goes out of recycle pump is communicated with the entrance that is positioned at digestion chamber upper chamber.

9. the sewage source treatment process is characterized in that: comprise the steps:

1) adopt the distributing processing mode, build respectively the sewage source treatment system in each agglomeration, described sewage source treatment system is such as each described sewage source treatment system among the claim 1-8;

2) the remittance Node configuration shunting well in the pipeline of sewage drainage main line, sewage is introduced shunting well by source sewage drainage arm, distribute the part water body, by water treatment wetland the water body that distributes is purified, the sewage concentration that divides the part water body that pours off is the dirt slurry;

3) described dirt slurry is carried out the anerobe biological fermentation and process, produce biogas.

10. sewage source treatment process as claimed in claim 9 is characterized in that: step 2) in, the multi-stage diffluence well is set, repeatedly shunt concentrated to sewage.

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