CN101182077A - Worm biological filter tank device for industrial wastewater treatment - Google Patents
Worm biological filter tank device for industrial wastewater treatment Download PDFInfo
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- CN101182077A CN101182077A CNA2007101712200A CN200710171220A CN101182077A CN 101182077 A CN101182077 A CN 101182077A CN A2007101712200 A CNA2007101712200 A CN A2007101712200A CN 200710171220 A CN200710171220 A CN 200710171220A CN 101182077 A CN101182077 A CN 101182077A
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Abstract
The invention relates to an earthworm biological filter device, which is applied to the industrial sewage treatment and which belongs to the environmental protection technical field. The device includes a rotary water distributor, a filter, a water inlet pipe, a water outlet, an earthworm layer, a filter material layer, a separation layer and a supporting board. One lateral of the filter bottom is equipped with the water inlet pipe and the other lateral is equipped with the water outlet. The rotary water distributor consists of a water distributing horizontal pipe and a water distributing vertical pipe. The water inlet pipe is connected with the water distributing vertical pipe of the rotary water distributor on the bottom of the filter. The water distributing vertical pipe is connected with the water distributing horizontal pipe on the top end of the filter. The earthworm layer, the filter material layer and the supporting board which plays a supporting role are successively arranged in the filter from up to down. The filter layer consists of an organic layer, an upper cinder layer and a lower cinder layer from up to down. The separation layer is arranged between the organic layer and the upper cinder layer. The invention has the advantages of simple process, low investment and operation cost, no secondary pollution and good treatment effect on the industrial sewage.
Description
Technical field
The present invention relates to a kind of filter tank device of environmental protection technical field, specifically is a kind of Worm biological filter tank device that is used for Industrial Wastewater Treatment.
Background technology
In recent years, along with development economic and society, the protrusion day by day of environmental problem, sewage disposal is not only also very urgent in the city but also in the area, small towns.Many closure body eutrophication situations are on the rise, and sewage disposal technology is not only required to remove organism, simultaneously the removal of nitrogen, phosphor contaminant are also had higher requirement.Simultaneously, because many regional water resources shortages are also increasing to the demand of reusing sewage.With the activated sludge process is the traditional technology of representative, as aerobic/anaerobic technology (A/O), anaerobism/double oxygen/aerobic process (A
2/ O), sequencing batch activated sludge technology (SBR) etc., though technology comparative maturity, but the widespread use that expensive cost and operational and administrative expenses have limited them is particularly in the scattered settlement area, small towns that lacks sewage collection system and the application of middle-size and small-size township and village enterprises.
Find through literature search prior art, existing technology of disposing of sewage with VBF, as Chinese patent application number 01105341.0, patent name is: a kind of treatment system of utilizing earthworm to handle organic sewage, this patent readme is: " the present invention relates to a kind of treatment system of utilizing earthworm to handle organic sewage; comprise filtering basin; the sewage mouth spray is arranged at the top of filtering basin; water outlet is arranged at the filtering basin bottom; it is characterized in that: a filter material layer is arranged in the filtering basin; be biostrome on the filter material layer, active earthworm is arranged in the biostrome, and filter material layer is by the wood chip layer, small crushed stone, big rubble constitutes, and it is the plastic wire of 3～5mm that the aperture is arranged between wood chip layer and small crushed stone, advantage of the present invention is to utilize the earthworm biological nature to handle the problem that mud in the filtering layer is piled up, and the earthworm quantity when regulating sewage disposal by the organic matter in the sewage.Yet ", trade effluent or comprehensive wastewater and general organic sewage have very big difference, and this technology can't directly apply at the processing of trade effluent and reuse.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of Worm biological filter tank device that is used for Industrial Wastewater Treatment is provided, be some trade effluents such as fish product industry, the milk preparation industry, the slaughterhouse, the draining of fertilizer plant etc. provides a kind of treatment unit, not only improved the disaggregating treatment efficient of organic pollutant in the sewage, but also having overcome this important disadvantages of ordinary biofilter sludge blockage in service, management is simple, saves capital construction and working cost.Worm biological filter tank also has certain denitrification dephosphorization function simultaneously.
The present invention is achieved through the following technical solutions, the present invention includes turning spurt water device, filter tank, water inlet pipe, water outlet, earthworm layer, filter material layer, separate layer, supporting plate.Annexation is: bottom, filter tank one side is a water inlet pipe, opposite side is a water outlet, turning spurt water device is made of water distribution transverse tube and water distribution vertical tube, water inlet pipe connects the water distribution vertical tube of turning spurt water device in the bottom, filter tank, the water distribution vertical tube connects the water distribution transverse tube on the top, filter tank, set gradually earthworm layer, filter material layer and passive supporting plate in the filter tank from top to bottom, filter material layer is made of organic layer, top cinder layer, lower coal slag blanket from top to bottom, between organic layer and top cinder layer a separate layer is arranged.
Described filter tank is cylindric.
Described turning spurt water device adopts slowspeed machine to drive, and makes the uniform rotation of water distribution transverse tube, and the water distribution transverse tube can rotate around the water distribution vertical tube.
Described earthworm layer has the wood chip of earthworm and the intermixed layer of husk for growth.
The earthworm of using in the described earthworm layer is a kind of Lumbricidae earthworm that belongs to the top layer kind.
Described organic layer is wood chip and husk mixolimnion.
Described top cinder layer is that particle diameter is different with the lower coal slag blanket---top cinder layer little, the big two-layer cinder layer of lower coal slag blanket.
Described separate layer is a plastic wire, corrosion-resistant and secular water erosion.
When the present invention worked, the waste water behind grid filtration was by the water distribution vertical tube of water inlet pipe inflow filter tank central authorities, and flowing into can be around the water distribution transverse tube of water distribution vertical tube rotation again.Rotary water distributor is driven by slowspeed machine and makes the uniform rotation of water distribution transverse tube, and waste water evenly is sprayed on the earthworm layer on top, filter tank.After the decomposition of eating of earthworm waited effect in the earthworm layer, waste water entered filter material layer.When waste water filters from top to bottom, constantly contact, thereby microorganism is bred at filter material surface, form so-called microbial film with the filtrate that is fixed on filter material layer.The biology community structure that microbial film is made up of multiple microorganism and microfauna, it utilizes organic pollutant in the waste water as nutritive substance, carries out katabolism and obtains energy, and form new microorganism body.Sewage also is able to further purification in this process.The water outlet of the bed of material is discharged by water outlet after filtration.
The present invention compared with prior art has the following advantages and beneficial effect: Worm biological filter tank is a natural, ecological treatment technology that does not have secondary pollution, and its pre-treatment is simple, and the organic waste residues of generation can will be converted into fertilizer by the earthworm composting technology.Technology is simple, and cost of investment is low, and with traditional activated sludge process comparison, its fabrication cost only is its 20%-25%.Be 1-2m generally at hydraulic load
3/ m
2During d, CODcr and BOD
5Clearance can reach more than 85%, the clearance of SS reaches more than 90%, also respectively more than 80% and 70%, water outlet is as clear as crystal for the clearance of nitrogen and phosphorus.As utilizing ultraviolet ray to carry out radiation treatment again, can remove the germ in the water fully.In addition, draining in the earthworm earthworm excrement particle of earthworm laminar surface itself is exactly a kind of good reodorant, makes the entire treatment device have the advantage that is destitute of smell.Has self-hold facility, behind the earthworm of first introducing some amount, under the normal circumstances, its population quantity is with the variation that is proportionate of the amount of organic substance in the sewage, and do not need to add in addition the earthworm individuality, simultaneously because of not needing back flushing, working cost is very low, is about 30% of BAF.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises filter tank 1, turning spurt water device 2, filter material layer 5, earthworm layer 6, separate layer 9, supporting plate 11, water inlet pipe 12, water outlet 13.
Turning spurt water device 2 is made of the water distribution transverse tube 4 of level and the water distribution vertical tube 3 that vertically passes filter tank 1 central authorities, and water distribution transverse tube 4 can be around 3 rotations of water distribution vertical tube.1 bottom, filter tank, one side is a water inlet pipe 12, and opposite side is a water outlet 13.1 bottom connects water distribution vertical tube 3 to water inlet pipe 12 in the filter tank, and water distribution vertical tube 3 connects water distribution transverse tube 4 on the top, filter tank.Earthworm layer 6, filter material layer 5 and passive supporting plate 11 are arranged in the filter tank 1 from top to bottom successively.Wherein in the earthworm layer 6 active earthworm, wood chip and husk are arranged; Filter material layer 5 is made of organic layer 7, top cinder layer 8, lower coal slag blanket 10, and organic layer 7 provides support and the good medium that adheres to for earthworm layer 6.One separate layer 9 is arranged between organic layer 7 and top cinder layer 8, thereby prevent that the organic granular in the organic layer 7 from entering the obstruction that top cinder layer 8 causes the filter tank.
Described filter tank 1 is cylindric.
Described turning spurt water device 2 is made of 2 water distribution transverse tubes 4 and 1 water distribution vertical tube 3, drives with slowspeed machine (40W, 8 rev/mins).
Described water distribution transverse tube 4 diameters are 300mm～100mm.
Described water distribution vertical tube 3 diameters are 500mm～200mm.
Described earthworm layer 6 has the wood chip of earthworm and the intermixed layer of husk, thickness 20cm～40cm for growth.
The earthworm kind of using in the described earthworm layer 6 is a kind of Lumbricidae earthworm that belongs to the top layer kind, and its scope of activity is about 30cm.
Described organic layer 7 is wood chip and husk mixolimnion, for the earthworm layer provides support and good medium, the thickness 20cm～60cm of adhering to.
Described top cinder layer 8 thickness are 10cm～40cm, and the cinder particle diameter is 2cm～5cm.
Described lower coal slag blanket 10 thickness are 10cm～50cm, cinder particle diameter 4cm～7cm.
Described separate layer 9 is plastic wires of aperture 3～5mm, corrosion-resistant and secular water erosion.
Described supporting plate 11 is the glass epoxy of the circular leaking hole of tool.
Waste water behind grid filtration is by the water distribution vertical tube 3 of water inlet pipe 12, inflow filter tank 1 central authorities, and flowing into can be around the water distribution transverse tube 4 of water distribution vertical tube 3 rotations again.Rotary water distributor 2 is driven by slowspeed machine and makes 4 uniform rotation of water distribution transverse tube, and waste water evenly is sprayed on the earthworm layer 6 on 1 top, filter tank.Solid block organic matter in the waste water is stayed on the earthworm layer 6, is eaten, digests, decomposes by earthworm.Because the motion of earthworm has improved ventilation, the water-permeable of earthworm layer 6, and because the existence of microorganism in eat digestion and the earthworm ight soil, environment of earthworm, a succession of aerobic and anaerobic digestion takes place in filter tank 1, and whole organic waste water biological treatment process is carried out.Waste water by earthworm layer 6 enters filter material layer 5, and filter material layer 5 is made of organic layer 7, top cinder layer 8, lower coal slag blanket 10 from top to down.At filter material layer 5, contact with wherein filtrate when waste water filters from top to bottom, thereby microorganism is bred at filter material surface, form so-called microbial film, waste water is further purified in this process.Organic layer 7 provides support and the good medium that adheres to for earthworm layer 6, and can replenish organic attachment material of earthworm layer loss.Between organic layer 7 and the top cinder layer 8 separate layer 9 is arranged, can prevent that the organic granular in the organic layer 7 from entering the filter tank obstruction that top cinder layer 8 causes.Water after the purification is discharged by water outlet 13.
Application example: the comprehensive wastewater that mixes with trade effluent and sanitary sewage is a process object, handles.
The earthworm layer has the wood chip of earthworm and the intermixed layer of husk, thickness 30cm for growth.Organic layer is wood chip and husk mixolimnion, thickness 60cm.Top cinder layer thickness 20cm, cinder particle diameter 2～5cm; Lower coal thickness of slag layer 20cm, cinder particle diameter 4～7cm.Separate layer is the plastic wire of aperture 3～5mm, corrosion-resistant and secular water erosion.Trade effluent is from biochemical factory, fertilizer plant, dye processing plant and diary farm in the water inlet.Comprehensive wastewater CODcr is 400～600mg/L, and indivedual times can reach 900mg/L.Natural ventilation, waste water adopt the mode of batching continuously to stream 24h down to intake, and system's hydraulic load is 2.3m
3/ m
2D.
Effect: after aforesaid method was handled, system was to CODcr and BOD
5Average removal rate all more than 85%, the SS clearance reaches 90%, the CODcr in the water outlet, BOD
5Satisfy country's " composite wastewater discharging " secondary standard with SS concentration.
Claims (10)
1. Worm biological filter tank device that is used for Industrial Wastewater Treatment, comprise turning spurt water device, the filter tank, water inlet pipe, water outlet, the earthworm layer, filter material layer, separate layer, supporting plate, it is characterized in that, bottom, filter tank one side is a water inlet pipe, opposite side is a water outlet, turning spurt water device is made of water distribution transverse tube and water distribution vertical tube, water inlet pipe connects the water distribution vertical tube of turning spurt water device in the bottom, filter tank, the water distribution vertical tube connects the water distribution transverse tube on the top, filter tank, set gradually the earthworm layer in the filter tank from top to bottom, filter material layer and passive supporting plate, filter material layer is from top to bottom by organic layer, the top cinder layer, the lower coal slag blanket constitutes, and between organic layer and top cinder layer a separate layer is arranged.
2. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described turning spurt water device, and wherein water distribution transverse tube diameter is 30mm～100mm, water distribution vertical tube diameter is 50mm～200mm.
3. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described earthworm layer is 20cm～40cm for growth has the wood chip of earthworm and the intermixed layer of husk, thickness.
4. according to claim 1 or the 3 described Worm biological filter tank devices that are used for Industrial Wastewater Treatment, it is characterized in that: the earthworm of using in the described earthworm layer is a kind of Lumbricidae earthworm that belongs to the scope of activity of top layer kind as 30cm.
5. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described organic layer is wood chip and husk mixolimnion, and thickness is 20cm～60cm.
6. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described top cinder layer, its thickness are 10cm～40cm, and the cinder particle diameter is 2cm～5cm.
7. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described lower coal slag blanket, its thickness 10cm～50cm, cinder particle diameter 4cm～7cm.
8. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described separate layer is that the aperture is the plastic wire of 3mm～5mm.
9. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described supporting plate is the glass epoxy of the circular leaking hole of tool.
10. the Worm biological filter tank device that is used for Industrial Wastewater Treatment according to claim 1 is characterized in that: described filter tank is cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101712200A CN101182077A (en) | 2007-11-29 | 2007-11-29 | Worm biological filter tank device for industrial wastewater treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101712200A CN101182077A (en) | 2007-11-29 | 2007-11-29 | Worm biological filter tank device for industrial wastewater treatment |
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| Publication Number | Publication Date |
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| CN101182077A true CN101182077A (en) | 2008-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101712200A Pending CN101182077A (en) | 2007-11-29 | 2007-11-29 | Worm biological filter tank device for industrial wastewater treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461167A (en) * | 2015-11-26 | 2016-04-06 | 杭州银江环保科技有限公司 | Ecological landscape type integrated garbage and sewage treatment system for villages and small towns |
| CN112778032A (en) * | 2021-01-22 | 2021-05-11 | 哈尔滨工业大学 | Worm bed septic tank |
-
2007
- 2007-11-29 CN CNA2007101712200A patent/CN101182077A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461167A (en) * | 2015-11-26 | 2016-04-06 | 杭州银江环保科技有限公司 | Ecological landscape type integrated garbage and sewage treatment system for villages and small towns |
| CN105461167B (en) * | 2015-11-26 | 2018-07-27 | 杭州银江环保科技有限公司 | A kind of integration villages and small towns ecoscape type garbage leachate processing system |
| CN112778032A (en) * | 2021-01-22 | 2021-05-11 | 哈尔滨工业大学 | Worm bed septic tank |
| CN112778032B (en) * | 2021-01-22 | 2022-04-15 | 哈尔滨工业大学 | Worm bed septic tank |
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Open date: 20080521 |