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Sewage treatment device and method for enhancing autotrophic nitrogen removal and synchronous phosphorus recovery of municipal sewage

A sewage treatment device and municipal sewage technology, applied in water/sewage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as resource recycling of unfavorable organic carbon sources

Active Publication Date: 2020-11-17
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biological phosphorus removal process also requires a certain amount of organic carbon sources, so that the entire nitrogen and phosphorus removal process still requires a large amount of organic carbon sources, which is not conducive to the recycling of organic carbon sources.

Method used

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  • Sewage treatment device and method for enhancing autotrophic nitrogen removal and synchronous phosphorus recovery of municipal sewage
  • Sewage treatment device and method for enhancing autotrophic nitrogen removal and synchronous phosphorus recovery of municipal sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] use as figure 1 The shown device removes nitrogen and phosphorus from municipal sewage, and is composed of a chemical phosphorus removal area, an autotrophic biological nitrogen removal area and an air-lift self-reflux system; the chemical phosphorus removal area is equipped with a mixing area, anaerobic fermentation area and flocculation Settling area; the flocculation settling area is set above the anaerobic fermentation area; a partition is set between the flocculation settling area and the mixing area; the inside of the flocculation settling area is provided with multi-layer parallel diversion plate; the water inlet of the chemical phosphorus removal zone is set above the side wall of the mixing zone; the water outlet of the chemical phosphorus removal zone is set above the side wall of the flocculation sedimentation zone;

[0060] The autotrophic biological denitrification zone is provided with two sets of inner aerobic zones and biofilm carriers distributed betwee...

Embodiment 2

[0067] use as figure 2 The shown device removes nitrogen and phosphorus from municipal sewage, and is composed of a chemical phosphorus removal area, an autotrophic biological nitrogen removal area and a reflux pump; the chemical phosphorus removal area is equipped with a mixing area, anaerobic fermentation area and a flocculation sedimentation area The flocculation sedimentation area is set above the anaerobic fermentation area; a partition is arranged between the flocculation sedimentation area and the mixing area; honeycomb materials are arranged inside the flocculation sedimentation area; the chemical phosphorus removal The water inlet of the zone is set above the side wall of the mixing zone; the water outlet of the chemical phosphorus removal zone is set above the side wall of the flocculation sedimentation zone;

[0068] The autotrophic biological denitrification zone is provided with two sets of inner aerobic zones and biofilm carriers distributed between and outside ...

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Abstract

The invention relates to the technical field of wastewater treatment, in particular to a sewage treatment device and method for enhancing autotrophic nitrogen removal and synchronous phosphorus recovery of municipal sewage. The sewage treatment device provided by the invention comprises a chemical phosphorus removal area and an autotrophic biological nitrogen removal area which communicate in sequence, wherein the chemical phosphorus removal area comprises a mixing area, a flocculation precipitation area and an anaerobic fermentation area; the autotrophic biological nitrogen removal area comprises an inner aerobic area and a biological membrane carrier distributed on the outer side of the inner aerobic area; a dosing device is arranged at the bottom of the autotrophic biological nitrogen removal area. The device further comprises a backflow system, wherein a water inlet of the baclflow system communicates with the autotrophic biological nitrogen removal area, and a water outlet of thebaclflow system communicates with the mixing area of the chemical phosphorus removal area. When the device provided by the invention is used for removing nitrogen and phosphorus from municipal sewage,the material consumption and energy consumption can be reduced, and the nitrogen and phosphorus removal efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a sewage treatment device and method for strengthening municipal sewage autotrophic denitrification and simultaneous phosphorus recovery. Background technique [0002] Under the background of advocating waste water recycling and energy treatment, organic matter and phosphorus in waste water need to be recovered as much as possible. The remaining ammonia nitrogen has no recovery value due to low concentration and needs to be biochemically treated. Traditional heterotrophic denitrification technology is due to the recovery of organic carbon sources. Hard to be the craft of choice. In recent decades, the discovery of some new nitrogen conversion pathways and the research on the mechanism have broken people's original understanding of the nitrogen cycle in nature, which is of great significance to the development of science and wastewater denitrification treatment techno...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/10C02F101/16C02F101/30
CPCC02F1/5281C02F3/02C02F3/28C02F3/30C02F3/302C02F3/305C02F3/307C02F2101/105C02F2101/16C02F2101/30
Inventor 李祥黄勇潘杨李大鹏毕贞顾晓丹
Owner SUZHOU UNIV OF SCI & TECH
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