Biological filter-ceramic membrane biological reactor device and water purifying application method thereof

A membrane bioreactor and bioreactor technology, applied in the field of environmental engineering, can solve the problems of low COD and ammonia nitrogen removal rate, pollution, membrane fouling, etc., and achieve high aerobic microbial concentration, flexible operating conditions, and controllable operating conditions Effect

Inactive Publication Date: 2010-06-30
北京市水利科学研究所
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the low COD and ammonia nitrogen removal rate in the existing low-concentration sewage advanced treatment and water purification technology and the serious membr

Method used

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  • Biological filter-ceramic membrane biological reactor device and water purifying application method thereof
  • Biological filter-ceramic membrane biological reactor device and water purifying application method thereof
  • Biological filter-ceramic membrane biological reactor device and water purifying application method thereof

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Embodiment 1

[0044] The raw water is polluted river water from an experimental river section in Beijing, which is treated with the above-mentioned device, and the hydraulic load is 40m 3 / m 2 d. Raw water enters the anaerobic biological filter unit from the lower end of the pool body, flows through the polyurethane filler to the upper end of the pool body, and undergoes biochemical reactions under anaerobic conditions. The dissolved oxygen concentration is controlled at 0.5-2mg / L, and the hydraulic retention time is 3h. The buffer reagent controls the pH value to be 6-8, the temperature is 24-28°C, and the wet density of the filler is 0.8g / cm 3 , the water holding capacity is 2400%, and the specific surface area is 100m 2 / g; the effluent from the anaerobic biofilter flows in from the upper end of the biological unit of the aerobic membrane bioreactor to carry out the biochemical reaction of aerobic microorganisms, and is aerated through the perforated tube. The oxygen concentration is ...

Embodiment 2

[0047] The raw water is heavily polluted river water from an experimental river section in Beijing, which is treated with the above-mentioned device, and the hydraulic load is 25m 3 / m 2 d. Raw water enters the anaerobic biological filter unit from the lower end of the pool body, flows through the polyurethane filler to the upper end of the pool body, and undergoes biochemical reactions under anaerobic conditions. The dissolved oxygen concentration is controlled at 0.5-2mg / L, and the hydraulic retention time is 3h. The buffer reagent controls the pH value to be 6-8, the temperature is 20-28°C, and the wet density of the filler is 0.8g / cm 3 , the water holding capacity is 2400%, and the specific surface area is 100m 2 / g; the effluent from the anaerobic biofilter flows in from the upper end of the biological unit of the aerobic membrane bioreactor to carry out the biochemical reaction of aerobic microorganisms, and is aerated through the perforated tube. The dissolved oxygen...

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Abstract

The invention relates to a biological filter-ceramic membrane biological reactor device, which comprises a water feeding pump, an anaerobic biological filter reactor and a ceramic membrane aerobic membrane biological reactor, the water feeding pump is connected with the water inlet of the anaerobic biological filter reactor by a pipeline, while the water outlet of the anaerobic biological filter reactor is connected with the water inlet of the ceramic membrane aerobic membrane biological reactor; the invention further discloses a water purifying application method thereof: contaminated surface water enters in the anaerobic filter reactor, biochemical reaction is carried out under anaerobic conditions; then the treatment liquid in the anaerobic biological filter reactor flows automatically into the biological unit of the ceramic membrane aerobic membrane biological reactor for carrying out aerobic biochemical reaction; then, the treatment liquid flows into the membrane unit in the ceramic membrane aerobic membrane biological reactor in an overflowing way, water flow enters a clean water pool after membrane separation function of the ceramic membrane component is carried out under the action of a vacuum suction pump; part of the treating liquid flows back into the anaerobic biological filter reactor from the ceramic membrane aerobic membrane biological reactor for carrying out denitrification reaction, and the reflux ratio is 0.5-2:1.

Description

technical field [0001] The invention relates to a technology for deep purification of water bodies and reclaimed water, in particular to a combined process technology using an anaerobic biological filter tank-ceramic membrane bioreactor, and belongs to the technical field of environmental engineering. Background technique [0002] With the rapid development of society and economy, especially the increase in global water demand has led to the shortage of water resources in the world and the aggravation of water pollution. Human beings have become increasingly urgent for the utilization of renewable water resources and the improvement of urban water environment, and there is an urgent need for polluted surface water. The research and development of purification technology is used to restore the functional requirements of rivers and lakes, improve the utilization rate of water resources in the river basin and build a good ecosystem. Among them, the anaerobic / anaerobic biologica...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/28C02F3/10C02F1/44C02F3/30
CPCY02W10/10
Inventor 申颖洁廖日红刘操孟庆义战楠高振宇
Owner 北京市水利科学研究所
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