High concentration organic wastewater processing system

A technology of organic waste water and treatment system, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc., can solve the difficulties of effluent recovery, utilization and monitoring, and high operating costs , Large footprint and other issues, to achieve good capillary wettability, reduce organic load, and reduce COD

Inactive Publication Date: 2008-06-11
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology

The treatment of high-concentration organic wastewater produced by small and medium-sized food manufacturing enterprises is even more difficult. At present, they generally use anaerobic baffle reaction (ABR), EM bacteria treatment and Sequenced batch activated sludge (SBR), these methods are good for the treatment of high-concentration organic wastewater, but the investment is high, the operating cost is high and the management is cumbersome. Now the investment in soil infiltration treatment technology has appeared The cost is low, but it is generally used for the treatment of domestic wastewater, and it is rarely involved in the treatment of industrial wastewater. Moreover, the current common soil infiltration technology is easy to clog, occupies a large area, and the recovery and utilization of effluent is relatively incompatible with monitoring. Difficult, and the nitrification process in the system is also difficult

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  • High concentration organic wastewater processing system

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Effect test

Embodiment 1

[0015] Embodiment 1: The treatment system of the high-concentration organic wastewater includes a flocculation sedimentation tank 1 , a filter tank 2 connected with it, and a soil infiltration device connected with the filter tank 2 .

[0016] The soil infiltration device comprises that the outside is built with bricks, and the inner surface is sealed with cement shell 5. The inner cavity of the shell 5 is a cuboid. Its width L is 50 cm, and its thickness D is 150 cm. The bottom of the inner cavity is a clear water tank 12. There is a water outlet 13 at its end, and the top of the clear water tank 12 is a load-bearing water-permeable layer 11 made of bamboo fence. The distance between the load-bearing water-permeable layer 11 and the inner bottom surface of the housing 5 is 10-15cm. A 10-13cm thick gravel layer 10 is laid on it, and a prepared soil layer 9 is arranged on it; an isolation layer 10' is arranged between the gravel layer 10 and the prepared soil layer 9, and the is...

Embodiment 2

[0018] Embodiment 2: the housing 5 inner cavity of the soil infiltration device of the treatment system of the high-concentration organic wastewater in the present embodiment is cuboid, and its wide L is 100cm, and thickness is 180cm, and the load-bearing water-permeable layer 11 is apart from housing 5 The distance of the inner bottom surface is 16-19cm, and an 18cm-thick gravel layer 10 is laid on the load-bearing water-permeable layer 11; the isolation layer 10' between the gravel layer 10 and the prepared soil layer 9 is a kind of pore size of 1-1.5 cm. The glass fiber fabric of mm gap; The purification device in the middle and upper part of the prepared soil layer is also an inverted trapezoidal purification ditch Q, the lengths of its upper bottom and lower bottom are respectively 70cm, 45cm, and the height is 50cm. The bottom of the purification ditch Q It is a gravity anti-seepage layer 8 made of glass fiber reinforced plastic material. The gravity anti-seepage layer 8 ...

Embodiment 3

[0020] Embodiment 3: the wide L of casing 5 is 80cm in the soil infiltration device of the processing system of the high-concentration organic waste water in the present embodiment, lays 14cm thick gravel layer 10 on the load-bearing water-permeable layer 11; The purification device in the prepared soil layer in the interior is a cuboid shape, the width L' is 60cm, the thickness is 180cm, and the height is 45cm. The bottom of the purification device is made of hard plastic material, and the gravity anti-seepage layer 8 is filled with 12cm thick sand, in the filter pool 2 in the present embodiment is provided with a filter screen.

[0021] The porosity of the prepared soil layer 9 in the soil infiltration device and the special soil 9' in the purification device is 56%, the saturated hydraulic conductivity of the soil is 100cm / d, and the soil organic matter is 16%. This prepared soil is made by adding peat soil and sawdust to the soil. Other structures and materials in this em...

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Abstract

Provided is a treatment system for high concentrated organic wastewater, which comprises a flocculent sedimentation tank, a filter tank and a soil filtration device, wherein the soil filtration device comprises a casing made of anti-seep materials. The bottom portion inside the casing is a rinsing area, the end portion of the rinsing area is provided with a water outlet, and a bearing permeable stratum, a gravel stratum and a soil preparation stratum are sequentially arranged above the rinsing area. A separation layer is arranged between the gravel stratum and the soil preparation stratum, the middle upper portion of the soil preparation stratum is provided with a purifier in which a water giving-off pipe is disposed, and the filter tank is communicated with the water giving-off pipe via a water inflow device. The treatment system is capable of effectively removing the content of COD, BOD, SS and ammonia nitrogen in the water, is simple and convenient in operation and management, hard in being blocking up and small in accommodation area, and is adaptable to treatment systems for high concentrated organic wastewater of small and medium-sized food manufacturing enterprises.

Description

technical field [0001] The invention belongs to a sewage treatment system, in particular to a treatment system for high-concentration organic waste water. Background technique [0002] my country is a country with serious drought and water shortage, and it is also a country with relatively serious water pollution. A large amount of untreated wastewater is directly discharged into rivers, lakes and seas, causing water pollution, water resource shortage and water pollution. The contradiction between severe and severe is becoming more and more acute. How to find a treatment method that can not only realize the harmlessness of sewage treatment, but also make reasonable use of it is a hot spot that my country's environmental protection circles pay attention to. The treatment of high-concentration organic wastewater produced by small and medium-sized food manufacturing enterprises is even more difficult. At present, they generally use anaerobic baffle reaction (ABR), EM bacteria tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/52C02F1/44
Inventor 杨喜田陈星
Owner HENAN AGRICULTURAL UNIVERSITY
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