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Composite medium biological filter sewage treatment method and matched device

The technology of a sewage treatment device and sewage treatment method is applied in the field of sewage treatment of composite media biological filters, which can solve the problems of high basic investment cost and high energy consumption, and achieve the effect of strong water permeability and good adhesion

Inactive Publication Date: 2012-07-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the existing sewage treatment process, such as high basic investment cost, special operation and maintenance, and high energy consumption, the present invention provides a composite media biofilter that requires no or less power, is convenient to manage, and occupies a small area. Sewage treatment method and supporting device

Method used

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  • Composite medium biological filter sewage treatment method and matched device
  • Composite medium biological filter sewage treatment method and matched device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A sewage treatment method, said method comprising the steps of:

[0028] (1) Water distribution: The sewage is evenly distributed into the treatment device through the water distribution pipe;

[0029] (2) Purification treatment: The sewage infiltrates, fully contacts with the filler in the treatment device and undergoes physical, chemical and biological effects. The organic matter, nitrogen and phosphorus in the sewage are adsorbed by the filler and further degraded and transformed;

[0030] (3) The infiltrated sewage collects at the bottom of the treatment device and is finally discharged from the outlet of the treatment device.

[0031] refer to figure 1 , a composite medium biological filter sewage treatment device for realizing the above method, comprising a perforated water distribution pipe 1, a filter main body 8, a packing layer, a vent pipe 7, an outlet pipe 5, a water collection chamber 6 and an aeration pipe 4; the packing The layer is composed of a compos...

Embodiment 2

[0041] The volume of the composite media biological filter sewage treatment device is 2m 3 , the thickness of the rapid percolation layer is 10-15cm, the thickness of the composite medium mixed layer is 8-10cm, and the height of the water collection chamber is 30cm; the composition of the rapid percolation layer is modified zeolite, vermiculite, ceramsite and bamboo forest particles, of which The volume ratio of each component is 10-40:15-20:10-30:15-30, and there are 7 layers filled in total. The thickness and component ratio of each layer are different. The percolation layer at the bottom and upper part of the device is slightly different. If it is thicker, the corresponding ratio of zeolite and vermiculite is also slightly larger; the main components of the composite medium mixed layer are yellow sand, soil, fly ash, fermented organic matter, bamboo chips, and bamboo charcoal, and some high-efficiency microbial strains are mixed at the same time. Wherein the volume ratio of...

Embodiment 3

[0043] The volume of the composite media biological filter sewage treatment device is 8.8m 3 , the thickness of the rapid percolation layer is 15-20cm, the thickness of the composite medium mixing layer is 5-10cm, and the height of the water collection chamber is 30cm; the composition of the rapid percolation layer is zeolite, limestone, sandstone, resin, ceramsite and bamboo particles , wherein the volume ratio of each component is 10-30:5-20:1-10:10-15:10-20:10-30, a total of 7 layers are filled, and the thickness and component ratio of each layer are different , the percolation layer at the bottom and upper part of the device is slightly thicker, and the proportion of corresponding components such as zeolite, limestone and ceramsite is also slightly larger; the main components of the composite medium mixed layer are soil, fly ash, biological straw, bamboo crumbs, bamboo charcoal, and mixed with some high-efficiency microbial strains, the volume ratio of each component is 20...

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Abstract

The invention discloses a composite medium biological filter sewage treatment method and a matched device. The device comprises a perforated water distribution pipe, a filter main body, a packing layer, a ventilating pipe, a water outlet pipe, a water collection chamber and an aerator pipe. The packing layer is formed in a mode that a composite medium rapid infiltration layer and a composite medium mixing layer are arranged inside the filter main body at intervals; sewage is uniformly distributed in the composite medium rapid infiltration layer through the water distribution pipe, further infiltrates after being primarily purified by the composite medium rapid infiltration layer, and continuously infiltrates after being sufficiently contacted with packing in the composite medium mixing layer; and pollutants in the sewage are adsorbed, degraded and transformed step by step under the combined action of the packing and microorganisms in the packing; and finally, the high efficiency purification of the sewage is implemented. According to the invention, a medium has wide source and low price; the sewage is deeply purified under the combined action of various microorganisms with different functions; and finally, the discharge with standard level or the resource utilization of the sewage is implemented.

Description

technical field [0001] The invention relates to a composite medium biological filter sewage treatment method and a matching device. Background technique [0002] Traditional sewage treatment processes and their applications have become more and more mature, but these processes have limitations such as high basic investment costs, special personnel for operation and maintenance, and high energy consumption. Therefore, seeking low-cost, high-efficiency, and easy-to-operate sewage treatment technologies is of great significance for further expanding the scope of sewage treatment and meeting social and market needs, especially for rural areas with complex sewage sources and diverse economic conditions and cultural backgrounds. Good application prospects and important social significance. Contents of the invention [0003] In order to solve the problems existing in the existing sewage treatment process, such as high basic investment cost, special operation and maintenance, and...

Claims

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Application Information

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IPC IPC(8): C02F3/30
Inventor 罗安程聂新军王云龙
Owner ZHEJIANG UNIV
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