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Denitrification biological filter for deeply removing total nitrogen

A biological filter and denitrification technology, applied in special compound water treatment, biological water/sewage treatment, water pollutants, etc. Improve the total nitrogen removal efficiency, improve the treatment effect, and improve the effect of backwashing capacity

Pending Publication Date: 2021-12-21
GUANGZHOU HKUST FOK YING TUNG RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a denitrification biological filter for deep removal of total nitrogen in order to solve the problem that the existing denitrification filter has a poor total nitrogen removal effect, which leads to the deterioration of the overall effluent water quality of the denitrification filter.

Method used

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  • Denitrification biological filter for deeply removing total nitrogen
  • Denitrification biological filter for deeply removing total nitrogen
  • Denitrification biological filter for deeply removing total nitrogen

Examples

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specific Embodiment approach 1

[0022] Specific Embodiment 1: The denitrification biofilter used for the deep removal of total nitrogen in this embodiment consists of a midway lifting pump pool 1, several biofilters 2, clear water pools 3, several reservoirs 4, and backwash drainage channels 5 , a drain 6, a medicament dosing device 30 and a biological agent and an electron acceptor adding device 31;

[0023] Several biofilters 2 are arranged side by side between the lifting pump pool 1 and the clean water pool 3, and several reservoirs 4 are arranged side by side on the side of the lifting pump pool 1, and the reservoirs 4 are higher than the biological filter 2; The dosing device 30 is set on the other side of the lift pump pool 1 midway; the lift pump pool 1 is connected to the drug dosing device 30 through the drug delivery pipe 10; the electron acceptor adding device 31 is set on one side of several biofilters 2 , the biofilter 2 is connected with the electron acceptor adding device 31 through the bacte...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment is different from Embodiment 1 in that: the depth of the pump pool 1 is 5-7m.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the aeration tube plate 24 is located 0.2m-0.3m above the filter plate composed of long handle filter heads 25 .

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Abstract

The invention relates to a denitrification biological filter, in particular to a denitrification biological filter for deeply removing total nitrogen. The invention aims to overcome the problem that the total nitrogen removal effect of a denitrification filter is poor. The denitrification biological filter consists of a midway lifting pump tank, a biological filter, a clean water tank, a reservoir, a backwashing drainage channel, a drainage channel, a chemical adding device and a biological agent and electron acceptor adding device. On the basis of an existing denitrification biofilter, the removal of total nitrogen in wastewater is deeply enhanced; the biodegradability of the wastewater and the bioavailability of the denitrification biofilter are improved by utilizing the pretreatment of the midway lifting pump tank; and a sulfur circulation autotrophic denitrification system is constructed by adding a biological complex microbial inoculant and an electron acceptor into the denitrification biological filter, so the removal of total nitrogen in the wastewater is enhanced. The denitrification biological filter is suitable for urban sewage treatment.

Description

technical field [0001] The invention relates to a denitrification biological filter. Background technique [0002] Total nitrogen is an important index to measure water quality, and it is often used to indicate the degree of water pollution by nutrients. Nitrogen compounds in sewage generally include organic nitrogen and inorganic nitrogen, and inorganic nitrogen includes ammonia nitrogen, nitrate nitrogen and nitrite nitrogen. . At present, the denitrification methods of sewage mainly include physical chemical method and biological denitrification method. Biological denitrification is widely used in sewage treatment plants because of its low energy consumption and less input of chemical reagents. The traditional heterotrophic denitrification denitrification is to adjust the oxygen content in water by exposing to air, and make heterotrophic bacteria use organic matter as electron acceptors to reduce nitrite and nitrate to N 2 . Based on the traditional principle of denitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/34C02F1/72C02F1/76C02F101/16C02F101/38
CPCC02F3/34C02F1/76C02F1/722C02F1/72C02F2305/06C02F2303/14C02F2101/16C02F2101/38
Inventor 魏利郝天伟骆尔铭魏东李春颖张昕昕欧阳嘉卢倩
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
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