Sewage treatment efficient energy-saving pressure MBR (membrane bioreactor)

A bioreactor, high-efficiency and energy-saving technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, water treatment parameter control, etc. problems such as large consumption, to achieve the effect of reducing volume, reducing energy consumption, reducing volume and cost

Inactive Publication Date: 2017-02-22
DALIAN LANGXU ENVIRONMENTAL SCI & TECH
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Superior processing performance makes MBR have broad application prospects, but MBR technology still has some difficult technical problems, such as its energy consumption is much higher than traditional technology
First of all, the concentration of suspended solids in the MBR tank is higher than that of the ordinary activated sludge method. To maintain a sufficient oxygen transfer rate, the aeration intensity must be increased, and the energy consumption of the aeration system is relatively large; secondly, a certain membrane must be maintained during the sludge-water separation process. driving pressure

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
  • Sewage treatment efficient energy-saving pressure MBR (membrane bioreactor)
  • Sewage treatment efficient energy-saving pressure MBR (membrane bioreactor)
  • Sewage treatment efficient energy-saving pressure MBR (membrane bioreactor)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: refer to attached figure 1 .

[0018] A high-efficiency and energy-saving pressure membrane bioreactor for sewage treatment, comprising a closed MBR reactor 1, a water inlet pipeline 2, a water outlet pipeline 3, an air inlet pipeline 4, and an exhaust pipeline 5; the MBR reactor 1 includes a biochemical Components and Membrane Modules 1.1;

[0019] Pass air or oxygen aeration into the MBR reactor 1 through the inlet pipeline 4, and form a certain pressure in the MBR reactor 1; use the pressure in the MBR reactor 1 to drive the sewage from the MBR reactor 1 through the outlet pipeline 3 discharge.

Embodiment 2

[0020] Embodiment 2: refer to attached figure 2 .

[0021] A water inlet pump 6, an electric control valve or a solenoid valve 7 is installed on the water inlet pipeline 2 of the system, and a water level sensor 8 is installed in the MBR reactor 1. The water level sensor 8 is used for monitoring the water level, and controls the water inlet pump 6, the electric control valve or the electromagnetic valve 7 according to the water level. When the water level is lower than the lower limit value, the electric control valve or electromagnetic valve 7 is opened, the water inlet pump 6 works, the system enters water, and the water level rises; when the water level rises to the upper limit value, the electric control valve or electromagnetic valve 7 is closed, and the water inlet pump 6 Stop working, the system stops water intake, and the water level begins to drop. Keep the water level between the set upper and lower limit water levels.

[0022] A valve 9 is set on the water outle...

Embodiment 3

[0024] Embodiment 3: refer to attached image 3 .

[0025] On the basis of Embodiment 2, a residual gas circulation circuit is added, and a check valve 13 and a booster device 14 are arranged on the cycle circuit; driven by the booster device, the recycling of pressurized gas is realized. Minimize the discharge of residual pressure gas, thereby reducing energy consumption.

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 an MBR (membrane bioreactor) system with low energy consumption and high treatment capability. The MBR system comprises a sealed MBR, a water inlet pipeline, a water outlet pipeline, a gas inlet pipeline and an exhaust pipeline, wherein the MBR comprises a biochemical assembly and a membrane assembly; air or oxygen is introduced into the MBR through the gas inlet pipeline for aeration, and certain pressure is formed in the MBR. The MBR system has the advantages that 1, a pressure aeration technology is used, so that the dissolved oxygen concentration of an aerobic pool in the biochemical treatment assembly is greatly improved; 2, high aeration intensity can be realized through small aeration quantity, so that the aeration pool volume can be greatly reduced; further, the volume and the cost of the MBR system are reduced; 3, the gas pressure driving is used for replacing the existing self sucking pump driving mode for reducing the membrane driving energy consumption; 4, the gas circulation of an aeration system is realized in various modes, so that the gas overbottom pressure is fully utilized, and the energy consumption of the system is further reduced.

Description

technical field [0001] The invention belongs to the field of sewage treatment, more specifically, to the field of high-efficiency and energy-saving pressure membrane bioreactors in sewage treatment. Background technique [0002] Membrane bioreactor (MBR) is a new sewage treatment technology that combines membrane technology and biochemical reaction technology. MBR technology has not developed rapidly until recent years, and is currently one of the most promising sewage treatment technologies. . MBR uses a membrane to filter the muddy sewage in the biochemical reaction tank to realize the separation of muddy water. On the one hand, the microorganisms in the reaction tank are retained, and the sludge concentration in the tank is increased, so that the biochemical reaction of degrading sewage can be carried out more rapidly and thoroughly. On the other hand, due to the high filtration accuracy of the membrane, the effluent is clearer and more transparent. [0003] The superi...

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): C02F3/12
CPCC02F3/1268C02F2203/006C02F2209/03C02F2209/225C02F2209/42Y02W10/10
Inventor 陈建云徐晖
Owner DALIAN LANGXU ENVIRONMENTAL SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap