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Biomass filler anaerobic filter tank for treating oxidation-state pollutants

A technology of biological filter and anaerobic filter, which is applied in the direction of anaerobic digestion and treatment, and can solve the problems of restricting wide application

Inactive Publication Date: 2014-08-06
浙江金环宝生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the immobilization of redox mediators can improve the efficiency of their utilization to a certain extent, the cost of immobilization still limits their wide application.

Method used

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  • Biomass filler anaerobic filter tank for treating oxidation-state pollutants
  • Biomass filler anaerobic filter tank for treating oxidation-state pollutants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1. As figure 1 As shown, a biomass filled anaerobic filter, the operation mode is downward flow, and the effluent is provided with internal circulation.

[0023] The biomass filler anaerobic filter that embodiment 1 adopts comprises common biological filter, biomass filler;

[0024] The biomass filler is composed of natural henna plant stems and ceramsite; the average length of henna plant stems after crushing is 10 mm, and the average particle size of ceramsite is 20 mm;

[0025] There is a support plate 7 in the ordinary biological filter, which is used to place the biomass filler; one end of the ordinary biological filter is provided with a water inlet A, and the other end is provided with a water outlet B; the water flow direction from the water inlet A to the water outlet B, A water inlet buffer zone 1, a filter filter zone, and a water outlet buffer zone 2 are sequentially arranged in an ordinary biological filter, and a support plate 7 is arranged betwee...

Embodiment 2

[0028] Example 2. If figure 2 As shown, a biomass filled anaerobic filter, the operation mode is upward flow, and the effluent is provided with internal circulation

[0029] The biomass filler anaerobic filter that embodiment 2 adopts comprises ascending type filler filter, biomass filler;

[0030]The biomass filler is composed of natural henna plant leaves and volcanic rock mountains; the average particle size of henna plant leaves after crushing is 5 mm, and the average particle size of volcanic rocks is 7 mm;

[0031] There is a support plate 7 inside the ascending packing filter, which is used to place biomass packing; one end of the ascending packing filter is provided with a water inlet A, and the other end is provided with a water outlet B; the water flow from the water inlet A to the water outlet B Direction, in the ascending packed filter tank, there are water inlet buffer zone 1, filter tank filtration zone, and water outlet buffer zone 2 in sequence, and a support...

Embodiment 3

[0034] Example 3. As figure 1 As shown, a biomass filled anaerobic filter, the operation mode is downward flow, and the effluent is provided with internal circulation

[0035] The biomass filler anaerobic filter that embodiment 3 adopts comprises tower type biofilter, biomass filler;

[0036] The biomass filler is composed of natural henna plant seeds and steel slag; the henna plant seeds are inactivated at 121°C and 0.12MPa for 1 h before use, the average particle size is 2 mm, and the average particle size of steel slag is 3 mm;

[0037] There is a supporting plate 7 inside the tower biofilter, which is used to place biomass filler; one end of the tower biofilter is provided with a water inlet A, and the other end is provided with a water outlet B; the water flow from the water inlet A to the water outlet B In the tower type biofilter, there are water inlet buffer 1, filter filter area, and outlet buffer 2 in sequence, and a support plate 7 is provided between the water inl...

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Abstract

The invention discloses a biomass filler anaerobic filter tank for treating oxidation-state pollutants. The biomass filler anaerobic filter tank for treating the oxidation-state pollutants comprises a biological filter tank and a biomass filling material. A water inlet buffer zone, a filter tank filtering region and a water outlet buffer zone are sequentially arranged inside the biological filter tank in the water inflow direction, the filter tank filtering region comprises a first filtering layer, a second filtering layer, a third filtering layer and a fourth filtering layer, of which the heights account for 20 percent, 50 percent, 20 percent and 10 percent of that of the filtering region; all filtering layers are respectively filled with the biomass filling material with different raw material ratios, the biomass filling material is composed of an impatiens balsamina plant biomass material and an inactive filler, wherein the volume content of the impatiens balsamina plant biomass material is lowered in the water flow direction in the biological filter tank, and are respectively 20-50 percent, 10-30 percent, 5-15 percent and 0 percent. The biomass filler anaerobic filter tank provided by the invention has the advantages of simplicity in operation, high efficiency, lower running cost, zero secondary pollution and the like, and can also achieve the purposes of synchronous reduction and treatment of wastes with processes of wastes against one another of the natural plant biomass.

Description

technical field [0001] The invention belongs to the field of sewage treatment in environmental protection, and in particular relates to a biomass-filled anaerobic filter for treating oxidized pollutants. Background technique [0002] In industrial wastewater and domestic sewage, oxidized pollutants include organic compounds such as nitro, azo, and halogenated hydrocarbons, inorganic anions such as nitrate and sulfate, and heavy metals such as Cr(VI) and AS(V). ion. Oxidized pollutants have a greater impact on the environment. At present, the most economical and effective treatment method for oxidized pollutants is the biological method, which generally needs to be reduced first in the treatment process. The reduction rate of oxidized pollutants is low, which is the rate-limiting step in the transformation and degradation process. Therefore, the reduction of oxidized pollutants is the key to their efficient removal. [0003] In the biological treatment system of wastewater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
Inventor 黄进刚姚志通陈建军韩伟
Owner 浙江金环宝生物技术有限公司
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