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Moving bed denitrification filter tank

A denitrification and moving bed technology, applied in anaerobic digestion treatment, chemical instruments and methods, water pollutants, etc., can solve the problems of easily damaged filter material filtration level, complicated backwashing process, weakened filtration efficiency, etc. The effect of small backwashing difficulty, reducing damage and increasing filtering effect

Inactive Publication Date: 2019-01-15
兰凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of backwashing, the filter material is not easy to backwash, the backwashing process is more complicated, and it is easy to damage the original filtration level of the filter material, which weakens the filtration efficiency.

Method used

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  • Moving bed denitrification filter tank
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Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0023] Such as Figure 1-Figure 4As shown, a moving bed denitrification and denitrification filter according to the present invention includes a filter housing 1, a support mechanism 2, a water inlet mechanism 3, an observation window 4, a drainage mechanism 5, a circulation mechanism 6, and a backwash mechanism 7. Filter mechanism 8 and distribution mechanism 9; the support mechanism 2 used to support and fix the filter housing 1 is connected to the bottom end of the filter housing 1; the filter mechanism used for filtering and denitrification 8 is located at the bottom of the inner cavity of the filter housing 1, and the filter mechanism 8 includes a first filter material 81, a second filter material 82 and a third filter material 83, and the th...

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Abstract

The invention relates to the field of sewage denitrification filtration treatment, in particular to a moving bed denitrification filter tank, comprising a filter tank shell, a supporting mechanism, awater inlet mechanism, an observation window, a drainage mechanism, a circulation mechanism, a backwashing mechanism, a filtering mechanism and a dispensing mechanism, wherein the filtering mechanismfor filtering denitrification is arranged at the bottom of the inner cavity of the filter tank shell, and the dispensing mechanism for dispensing a filter material is arranged in the inner cavity of the filter tank shell positioned between the filtering mechanism and the water inlet mechanism; the drainage mechanism for draining clean water is connected with the bottom of the filter tank shell, and the observation window for observing the distribution situation of the filter material inside the filter tank shell is arranged on the side wall of the filter tank shell; the backwashing mechanism for performing backwashing denitrification on the circulating filter material is connected between the drainage mechanism and the filter tank shell. The moving bed denitrification filter tank providedby the invention can cyclically backwash the filter material in the tank, and reduce the difficulty in backwashing the filter material.

Description

technical field [0001] The invention relates to the field of sewage denitrification and denitrification filtration treatment, in particular to a moving bed denitrification and denitrification filter tank. Background technique [0002] Deep bed filters are usually used for the removal of suspended solids in water treatment. Single-layer homogeneous filter media or multi-layer filter media filters, the filter bed is relatively deeper than traditional fast filters, and most of them are downflow gravity filters. The filter material is natural quartz sand, and the multi-layer filter material is anthracite, quartz sand and garnet. The particle size of each filter material is arranged in the order of L small and large. The design of hydraulic load and nitrate volume load is appropriate, and the deep bed filter can also have the function of denitrification and denitrification, and remove suspended solids and nitrate simultaneously. The structure of the deep bed filter allows the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/28C02F2101/16
Inventor 兰凤林方杰
Owner 兰凤
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