A kind of anti-clogging plug ecological soil waste disposal plant
Technical field
The invention belongs to sewage treatment area, relate to a kind of waste disposal plant, particularly a kind of anti-clogging plug ecological soil waste disposal plant.
Background technology
According to the knowledge of the applicant, existing soil treatment sewage method is, after the sewage process pre-treatment separation that contains solid, allow the sewage that separates through pre-treatment by being embedded in the water spraying pipe in the soil, in the soil around infiltration is diffused into, utilize the physical adsorption characteristic of soil and the Decomposition purifying treatment sewage of microorganism.A kind of like this sewage water treatment method, it mainly is to use at the diafiltration bed that soil constitutes, sewage carries out diafiltration from top to bottom in soil, utilize the effect of the soil sanitation sewage that constitutes the diafiltration bed, reaches the purpose that all contaminations in the sewage is removed.
The applicant finds under study for action, existing soil treatment sewage method and other sewage treatment are compared, have that energy consumption is low, treatment effect good, the cost cost is low, management operating is convenient, the advantage that processing costs is low, construction investment and cost that it spends in concrete the application only are 10%~20% of conventional treatment method.In addition, soil treatment sewage method adopts the soil to dispose of sewage, and the available nutrient in the sewage and moisture are reduced to the soil, has the eucyclic effect of the natural, ecological of keeping, and especially in the area of water scarcity, is a kind of comparatively desirable sewage water treatment method.
Chinese patent literature disclosed " intensified water-layout underground infiltration water treatment method and the system " (patent No.: ZL02130946.9), be below ground flora, to arrange a plurality of diafiltration ditches and cloth tank, in the diafiltration ditch, fill the special soil of artificial preparation, and in cloth tank both sides the intensified water-layout material is set, under the comprehensive purifying function of soil-microorganism-botanical system, purify waste water, water after the purification is discharged through header after collecting by the collecting gutter that is arranged on impervious barrier top, bottom.The applicant thinks, this invention proposes to divide into a plurality of diafiltration ditches and cloth tank at soil layer, fills the special soil of human configuration in the diafiltration ditch, and the cloth tank is established the porous water distributor, the intensified water-layout material that arranges by both sides oozes gradually diffusion around the soil, and sewage is had good effect of removing.The category that it belongs to soil treatment sewage is the concrete application of soil treatment sewage method.
Although existing soil sewage treatment has above-mentioned advantage, never can large-scale penetration and promotion, this is that it encounters problems in application and can not obtain fine solution and make.The applicant finds the reason place that problem can not fine solution through research, mainly be, using existing soil sewage treatment disposes of sewage and exists insoluble soil blockage problem, cause existing soil treatment method after date when using a section, the hole in the soil has been stopped up in the accumulation of the organism that can not be decomposed fully in the sewage and the polysaccharose substance that produced by microbiological degradation gradually, have influence on the ventilative water flowing performance of soil, reduction along with the venting and water permeable performance of soil, the redox potential of soil also sharply descends, make the crumb structure of soil destroyed at last, aggravated the further obstruction of the hole in the soil, to such an extent as to handling water at last can't soak into mobile equably, the decontamination effect improving of soil is reduced, even can't carry out the purifying treatment of sewage.
Summary of the invention
The objective of the invention is, at the deficiency that above-mentioned prior art exists, improve, propose and study a kind of anti-clogging plug ecological soil waste disposal plant, it can prevent effectively that soil from stopping up, and water distribution is even, effectively improve the denitrogenation dephosphorizing effect, it is low to make running cost, and soil removability is strong.
Technical solution of the present invention, adopt treatment trough, cloth tank, it is characterized in that, treatment trough adopts mine working or constructs and forms, the bottom for the treatment of trough be equipped with anti-leakage layer all around, be provided with topsoil layer, water distribution layer, the first biological filter layer, the second biological filter layer, mixing with soil layer, rubble water-yielding stratum in the treatment trough from top to bottom, water distribution layer is provided with the cloth tank.
It is characterized in that the thickness of topsoil layer is 30 mm~400 mm, soil porosity is 50 %~65 %, and saturated coefficient of permeability is 1 * 10
-2Cm/s~1 * 10
-3Cm/s.
It is characterized in that, be provided with packing layer outside the cloth tank and between water distribution layer, the filler that packing layer adopts is granular gravel, and the saturated coefficient of permeability of packing layer is 10 cm/s~15 cm/s, the thickness of packing layer is 10 mm~200 mm, and the particle diameter of granular gravel is 10 mm~15 mm.
It is characterized in that the cloth tank is provided with water inlet pipe, aeration tube, fixed support, biological enzyme carbon is packing layer; Biological enzyme carbon is that the filler that packing layer adopts is granular biological enzyme charcoal, and the particle diameter of granular biological enzyme charcoal is 10 mm~50 mm; On the tube wall of water inlet pipe apron hole is arranged, the aperture of apron hole is 5 mm~15 mm; The section of cloth tank is rectangle.
It is characterized in that aeration tube is located at water inlet pipe to the both sides of support bracket fastened centre, the tubing that aeration tube adopts is a kind of of ABS or polypropylene or UPVC, and the aeration mode of aeration tube is intermittent aeration or lasting aeration; Aeration tube, biological enzyme carbon are that packing layer and water inlet pipe constitute little aerating system; Aeration tube is boring aeration pipe; Biological enzyme carbon is that packing layer is that the environmental biological enzyme carbonaceous material of distributing, ashstone filler mix the combination layer that constitutes by different proportionings.
It is characterized in that the filler of the first biological filter layer is that Guamishi and biological enzyme carbonaceous material mix, biological enzyme carbon is that the particle diameter of filler is 5 mm~20 mm; Thickness 2 mm~50 mm, saturated coefficient of permeability 1 cm/s~1 * 10
-1Cm/s.
It is characterized in that the filler of the second biological filter layer is that fine sand and biological enzyme carbonaceous material mix, biological enzyme carbon is that the particle diameter of filler is 5 mm~20 mm; Thickness 2 mm~50 mm, saturated coefficient of permeability 1 * 10
-1Cm/s~1 * 10
-2Cm/s.
It is characterized in that water distribution layer, the first biological filter layer and the second biological filter layer are combined into three grades of water distribution systems.
It is characterized in that the mixing with soil layer is that soil mixes formation with the biological enzyme carbonaceous material, thickness is 10 mm~350 mm, and soil porosity is 50 %~65 %, and saturated coefficient of permeability is 1 * 10
-2Cm/s~1 * 10
-3Cm/s.
It is characterized in that the rubble water-yielding stratum adopts rubble to constitute, the particle diameter of rubble is 10 mm~30 mm, and the rubble water-yielding stratum is furnished with the rising pipe that catchments.
Principle of work of the present invention is, three grades of water distribution systems that combined by water distribution layer, the first biological filter layer and the second biological filter layer, improve the water distribution uniformity of soil system: the water outlet of cloth tank enters water distribution layer, the coefficient of permeability of gravel is greater than the coefficient of permeability of the filler of the first biological filter layer and the second biological filter layer, and the water body rapid osmotic enters the first biological filter layer; The water of the first biological filter layer is covered with the space under the effect of osmotic pressure, and its coefficient of permeability is greater than the filler coefficient of permeability of the second biological filter layer, and the water body uniformly penetrating enters the second biological filter layer; Biological enzyme carbonaceous material in the filler of the first biological filter layer and the second biological filter layer, the larger molecular organics in the water body of effectively having degraded has improved the obstruction of filler, promotes the even laying of water body.
Innovative point of the present invention is: 1, adopt treatment trough, the treatment trough internal structure is rationally arranged; Three grades of water distribution systems that combined by water distribution layer, the first biological filter layer and the second biological filter layer, adopted the biological enzyme carbonaceous material, can degrade effectively larger molecular organics in the water body, make the latch up phenomenon of filler obtain basic improvement, improved the water distribution uniformity of soil system; The superperformance that had both kept soil treatment sewage has prevented effectively that again the situation that soil stops up from taking place.The cleaning action of cloth tank is to handle the reduction organism step by step, and macromolecular substance is converted into small-molecule substance, prevents that soil from stopping up; The distinctive water distribution manner of cloth tank self can prolong hydraulic detention time, accelerates organic decomposition in the water body, and larger molecular organics is decomposed into small-molecule substance; Biological enzyme charcoal in the filler can be built good microorganism growth environment, promote microorganism to organic consumption degraded and denitrification effect in the water sample.2, adopting aeration tube, biological enzyme carbon is that packing layer and water inlet pipe constitute little aerating system, and aeration tube rationally laid, improve the redox potential of soil effectively, prevent crumbling of soil aggregate, keep soil aggregate effectively, be conducive to the infiltration of water in soil and move; Be conducive to promote microorganism to organic decomposition in the sewage simultaneously, reach and prevent that phenomenon of blocking from appearring in soil behind life-time service.The aeration effect of aeration tube is: change the redox potential of soil, prevent crumbling of soil granular, keep soil aggregate, be conducive to flowing of water and air; Aerobic-anaerobic-aerobic-anoxic environment hockets, and promotes decomposition and the denitrogenation of larger molecular organics.
Advantage of the present invention is, modern design is rational in infrastructure, safeguards simple.Three grades of water distribution systems that the present invention adopts can prevent effectively that the problem that soil stops up and water distribution is inhomogeneous from taking place.The present invention adopts the topsoil layer, water distribution layer, the first biological filter layer, the second biological filter layer, the mixing with soil layer, the rubble water-yielding stratum constitutes the internal structure for the treatment of trough, has that energy consumption is low, treatment effect good, the cost cost is low, and management operating is convenient, the characteristics that processing costs is low, and water distribution is even, and manufacturing running cost of the present invention is low, and soil removability is strong.The quality that will improve greatly sewage disposal of applying of the present invention especially effectively improves the denitrogenation dephosphorizing effect, provides a kind of good approach for building good ecotope.
Description of drawings
Fig. 1, basic structure synoptic diagram of the present invention.
The water inlet synoptic diagram of three grades of water distribution systems that constituted by water distribution layer, the first biological filter layer and the second biological filter layer that Fig. 2, the present invention adopt.
What Fig. 3, the present invention adopted is little aeration synoptic diagram of little aerating system of constituting of packing layer and water inlet pipe by aeration tube, biological enzyme carbon.
The tube section view of the aeration tube of the little aerating system of formation that Fig. 4, the present invention adopt.
Among the figure, 1, the topsoil layer; 2, water distribution layer; 3, the first biological filter layer; 4, the second biological filter layer; 5, mixing with soil layer; 6, rubble water-yielding stratum; 7, the rising pipe that catchments; 8, cloth tank; 9, water inlet pipe; 10, aeration tube; 11, biological enzyme carbon is packing layer; 12, fixed support; 13, plant; 14, circular hole.
Embodiment
Below, with reference to the accompanying drawings, describe embodiments of the invention in detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention adopts treatment trough, cloth tank 8, and cloth tank 8 is in treatment trough.Treatment trough adopts mine working or constructs and forms.The bottom for the treatment of trough be equipped with anti-leakage layer all around, be provided with topsoil layer 1, water distribution layer 2, the first biological filter layer 3, the second biological filter layer 4 in the treatment trough from top to bottom,, earth mixolimnion 5, rubble water-yielding stratum 6.Cloth tank 8 is arranged in the water distribution layer 2, and the thickness of topsoil layer 1 is 30 mm~400 mm, and soil porosity is 50 %~65 %, and saturated coefficient of permeability is 1 * 10
-2Cm/s~1 * 10
-3Cm/s.
Water distribution layer 2 is provided with cloth tank 8, cloth tank 8 outer with 2 of water distribution layer be packing layer, the filler of packing layer employing is granular gravel, its saturated coefficient of permeability is 10 cm/s~15 cm/s.The thickness of the packing layer that is made of granular gravel is 10 mm~200 mm, and the particle diameter of granular gravel is 10 mm~15 mm.Be provided with water inlet pipe 9 in the cloth tank 8, biological enzyme carbon is packing layer 11 and aeration tube 10.Water inlet pipe 9 is furnished with the water inlet pipe base, and the water inlet pipe base is located at the bottom of cloth tank 8, and fixed support 12 is furnished with governing screw.The level height of cloth tank 8 realizes that by regulating fixed support 12 height of fixed support 12 is realized by adjusting governing screw; Rubble water-yielding stratum 6 is provided with the rising pipe 7 that catchments, and the surface soil layer is implanted with plant 13 for a kind.1 kind of plant of planting 13 of surface soil layer is the plant of high protein classification.The section of cloth tank 8 is rectangle, and cloth tank 8 is provided with baffle plate.On the tube wall of water inlet pipe 9 apron hole is arranged, the aperture of apron hole is 5 mm~15 mm.
The filler that the outer and water distribution layer of cloth tank 8 is 2 can also adopt the mixed fillers of granular gravel and biological enzyme carbonaceous material, its saturated coefficient of permeability is 10 cm/s~15cm/s, thickness is 10 mm~200 mm, and the particle diameter of mixed fillers is 10 mm~15 mm.
The effect of cloth tank 8 is to handle the reduction organism step by step, and macromolecular substance is converted into small-molecule substance, prevents that soil from stopping up.The characteristics that have of cloth tank 8 are: 1) self distinctive water distribution manner can prolong hydraulic detention time, accelerates organic decomposition in the water body, and larger molecular organics is decomposed into small-molecule substance; 2) the aeration effect of aeration tube, aerobic-anaerobic-aerobic-anoxic environment hockets, and promotes the decomposition of larger molecular organics; 3) the biological enzyme charcoal in the filler is built good microorganism growth environment, promotes microorganism organic consumption in the water sample is degraded.The direction shown in the arrow of water pressing in cloth tank 8 flows, infiltration, uniform.
Aeration tube 10 is located at water inlet pipe 9 to the both sides of the centre of baffle plate, and aeration tube 10, biological enzyme carbon are that packing layer 11, water inlet pipe 9 constitute little aerating system; Aeration tube 10 is boring aeration pipe.Several circular holes 14 are arranged on the aeration tube 10, and aperture 2 mm of circular hole 14, circular hole 14 are used for aeration.Circular hole 14 on the aeration tube 10 is by the certain spacing setting; In the horizontal direction, level interval 100 mm between each circular hole 14, the angle of circular hole 14 is 45; In the vertical direction, circular hole 14 is to be symmetrical arranged in twos, and the central angle that two circular holes are 14 is 90.The caliber of aeration tube 10 is 32 mm (DN32).Aeration tube 10 adopts the tubing processing and fabricatings, and the tubing of employing is a kind of among ABS, polypropylene, the UPVC, and the aeration mode of aeration tube 10 is intermittent aeration, continue a kind of of aeration; Biological enzyme carbon is that packing layer 11 is the combination layer of the different proportionings of the environmental biological enzyme carbonaceous material of distributing, ashstone.
The filler that the first biological filter layer 3 adopts is that Guamishi and biological enzyme carbonaceous material mix formation, thickness 2 mm~50 mm of the first biological filter layer 3, saturated coefficient of permeability 1 cm/s~1 * 10
-1Cm/s.
The filler that the second biological filter layer 4 adopts is that fine sand and biological enzyme carbonaceous material mix formation, thickness 2 mm~50 mm of the second biological filter layer 4, saturated coefficient of permeability 1 * 10
-1Cm/s~1 * 10
-2Cm/s.
By three grades of water distribution systems that water distribution layer 2, the first biological filter layer 3 and the second biological filter layer 4 combine, can improve the water distribution uniformity of soil system.This be because: 1) water outlet of cloth tank 8 enters water distribution layer 2, the saturated coefficient of permeability of the granular gravel in the water distribution layer 2 is greater than the saturated coefficient of permeability of the filler in the first biological filter layer 3 and the second biological filter layer 4, thereby makes water body rapid osmotic to enter the first biological filter layer 3; 2) water of the first biological filter layer 3 is covered with the space fast under the effect of osmotic pressure, and its saturated coefficient of permeability is greater than the saturated coefficient of permeability of the filler of the second biological filter layer, thereby makes water body penetrate into the second biological filter layer 4 again equably; 3) because the natural characteristics of the biological enzyme carbonaceous material in the filler of the first biological filter layer 3 and the second biological filter layer 4, the larger molecular organics in the water body of effectively having degraded, thereby improved the latch up phenomenon of filler greatly, promoted the even laying of water body in soil.
Mixing with soil layer 5 is that soil mixes formation with the biological enzyme carbonaceous material, and thickness is 10 mm~350 mm, and soil porosity is 50 %~65 %, saturated coefficient of permeability 1 * 10
-2Cm/s~1 * 10
-3Cm/s.
Rubble water-yielding stratum 6 has adopted oarse-grained rubble, and the particle diameter of rubble is 10 mm~30 mm, and rubble water-yielding stratum 6 is provided with the rising pipe 7 that catchments.