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

A ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms

A sewage treatment method and technology of active microorganisms, applied in the field of ceramic membrane sewage treatment equipment based on domesticated active microorganisms, can solve the problems of single function of MBR process, inability to further improve efficiency, and high cost of membrane module replacement

Active Publication Date: 2022-01-04
SHENZHEN ZHONGQING ENVIRONMENTAL TECH +1
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms, to at least partially solve the problem of single function of the MBR process in the prior art, the efficiency cannot be further improved, the membrane module is polluted by sludge, and the operating efficiency is low. The technical problem of high membrane module replacement cost

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
  • A ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms
  • A ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms
  • A ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The volume of the ceramic membrane sewage treatment system is 5 cubic meters, and the flow rate of the water inlet and outlet is 0.5m 3 / h, the hydraulic retention time is 10h. The membrane modules for domesticating and cultivating microorganisms are evenly distributed in the box, accounting for about 2 / 3 of the box volume, and the total area of ​​the membrane modules is 15m 2 , the membrane channel diameter is 10um. The remaining 1 / 3 of the space in the box is used to place membrane modules for filtering sewage, and the total area of ​​the membrane modules is 10m 2 , The membrane channel diameter is 0.6um. The pure oxygen in the air storage tank is input into the ceramic membrane for acclimating and cultivating microorganisms through an air compressor, and the delivery pressure is adjusted to 15kpa. As long as there are bubbles on the surface of the ceramic membrane but not detached from the surface, 100kg of activated sludge is put in and stirred to make it Dispers...

Embodiment 2

[0060] The volume of the ceramic membrane sewage treatment system is 5 cubic meters, and the flow rate of the water inlet and outlet is 0.5m 3 / h, the hydraulic retention time is 10h. 2 / 3 of the volume of the tank is an aerobic biochemical tank without ceramic membrane, and the bottom of the tank is equipped with an aeration disc. The remaining 1 / 3 of the space in the box is used to place membrane modules for filtering sewage, and the total area of ​​the membrane modules is 10m 2 , The membrane channel diameter is 0.6um. Put 100kg of activated sludge into contact with the ceramic membrane surface, regularly add sucrose, nitrogen fertilizer and phosphorus fertilizer as nutrients, turn on the aeration, and after 30 days, the microbial domestication is completed, start the membrane module for filtering sewage, and pump in the sewage to be treated, the quality of sewage: COD 1620mg / L, BOD780mg / L, NH 4 -N 30mg / L, TN 46mg / L. After the system works stably, the actual hydraulic re...

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 a ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms. The equipment includes: a reaction tank, the reaction tank includes a water inlet and a water outlet; a first membrane module, the ceramic membrane of the first membrane module The membrane is connected to the gas storage tank through the gas pipeline, and the microbial culture gas in the gas storage tank is filled into the ceramic membrane, and a biofilm layer is formed in the activated sludge environment, and the biofilm layer covers the The ceramic membrane surface of the first membrane module; the second membrane module, the second membrane module is located downstream of the first membrane module, and the second membrane module communicates with the water outlet through the water outlet pipeline . It solves the problem of uncontrollable microbial population in the existing MBR technology. At the same time, due to the use of sessile microorganisms to treat wastewater, the sludge production is low and the sedimentation performance is good, which can solve the problem that the existing MBR membrane modules are easily polluted by suspended activated sludge. As a result, the water production rate is low and the membrane modules are frequently replaced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a ceramic membrane sewage treatment equipment and method based on domesticated active microorganisms. Background technique [0002] Membrane bioreactor (Membrance Bioreactor, MBR) is an organic combination of traditional biochemical treatment technology and modern membrane separation technology. It replaces traditional activated sludge with membrane components such as microfiltration membrane, ultrafiltration membrane, nanofiltration membrane and reverse osmosis. The sedimentation tank in the method retains the advantages of high biological treatment technology load, low energy consumption, and recyclable biogas (anaerobic biological treatment); at the same time, the membrane module realizes the effective separation of HRT and SRT, which relieves the traditional activated sludge The sludge loss problem of the method; in addition, the membrane interception can also remove ...

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 Patents(China)
IPC IPC(8): C02F3/12C12M1/00C12M1/04C12N1/36
CPCC02F3/1268C12M25/02C12M29/06C12N1/36Y02W10/10
Inventor 郭建宁乔铁军邱跃武熊晔
Owner SHENZHEN ZHONGQING ENVIRONMENTAL TECH