Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-stage anoxic-aerobic sewage treatment equipment and method

A technology of sewage treatment equipment and sewage treatment method, which is applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc., and can solve the problems of high cost, limited nitrogen and phosphorus removal capacity, etc. problem, to achieve the effect of reducing carbon source demand, efficient removal, and increasing denitrification rate

Active Publication Date: 2021-11-09
BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present disclosure provides a multi-stage anoxic-aerobic sewage treatment equipment and method, which are used to at least partially solve the technical problems of limited nitrogen and phosphorus removal capabilities and high cost of traditional sewage treatment equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-stage anoxic-aerobic sewage treatment equipment and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] Based on the deficiencies of the above existing processes, the purpose of the present invention is to provide a multi-stage anoxic-aerobic sewage biochemical treatment process with the function of denitrification and phosphorus removal, to strengthen the effect of phosphorus removal, and to use denitrification and phosphorus accumulation bacteria to simultaneously remove nitrogen and denitrification. The ability of phosphorus further improves the nitrogen removal rate, ensures the quality of effluent water, and reduces costs.

[0031] Embodiments of the present disclosure provide a multi-stage anoxic-aerobic sewage treatment equipment, see figure 1 , including: anaerobic pool 1, denitrification phosphorus remov...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides multistage anoxic-aerobic sewage treatment equipment. The multistage anoxic-aerobic sewage treatment equipment comprises an anaerobic tank (1), a denitrification phosphorus removal tank (2), a first-stage anoxic tank (3), a first-stage aerobic tank (4), a second-stage anoxic tank (5), a second-stage aerobic tank (6) and a sedimentation tank (7) which are sequentially connected in series, wherein the first-stage anoxic tank (3) is connected to the anaerobic tank (1) through an anaerobic-anoxic internal circulation system (8); and the second-stage aerobic tank (6) is connected to the denitrification phosphorus removal tank (2) through an anoxic-aerobic internal circulation system (9). The invention further provides a multi-stage anoxic-aerobic sewage treatment method.

Description

technical field [0001] The disclosure relates to the technical field of sewage treatment, in particular to a multi-stage anoxic-aerobic sewage treatment equipment and method. Background technique [0002] In recent years, the country has gradually increased its requirements on the discharge standards of sewage treatment plants, and the existing biological treatment process has limited ability to simultaneously remove nitrogen and phosphorus. Therefore, the development of a sewage treatment process with efficient and simultaneous denitrification and phosphorus removal capabilities is of great significance to the future development of the sewage treatment industry. [0003] The existing multi-stage anoxic-aerobic water treatment process has mature technology and high denitrification rate. However, the number of AO series is large, and an external carbon source is often required, and the phosphorus removal effect is average. In addition, relying on the pure biological treatme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2101/16C02F2101/163C02F2101/166
Inventor 李安峰卢瑞朋徐文江董娜刘芳
Owner BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION