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Waste water/water treatment method using membrane separation bioreactor

A bioreactor and water treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc., can solve the problem of increasing setup costs, increasing the complexity of wastewater treatment systems, Problems affecting the water treatment volume of the membrane separation bioreactor

Inactive Publication Date: 2004-05-05
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, backwashing usually must stop the normal operation of the membrane bioreactor before it can be carried out, so it will affect the treated water volume of the membrane bioreactor, and it will also increase the complexity of the entire wastewater treatment system and increase the installation cost

Method used

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  • Waste water/water treatment method using membrane separation bioreactor
  • Waste water/water treatment method using membrane separation bioreactor
  • Waste water/water treatment method using membrane separation bioreactor

Examples

Experimental program
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Embodiment 1

[0028] This example uses similar figure 1 The immersed membrane bioreactor system for experiments. In this embodiment, artificially formulated wastewater with sodium citrate as the main component is the object of treatment, and trace components such as urea, phosphoric acid, and ferric chloride are additionally added to provide sufficient nutrients for microorganisms. The components of artificially formulated wastewater are shown in Table 1.

[0029] There are four groups of reaction tanks in the research experiment of this example, each tank is made of acrylic (diameter 9cm * A cylindrical tank with a length of 80cm) has an effective water depth of 53cm and an effective volume of 3 liters. The aeration equipment installed at the bottom of the tank is used for aeration (flow=1.5L air / min) to control the mixture in the tank to be in aerobic state.

[0030] The membrane module adopts the membrane separation filter material developed by the Institute of Chemical Industry of Taiwan I...

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PUM

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Abstract

A process for treating sewage or water by submerged membrane bioreactor is disclosed. Said bioreactor has an internal tank full of the mixed microbial liquid, multiple porous carrier in the liquid, and a submerged filtering module with a penetrable side. Said process features that after the sewage or water to be treated is introduced to said tank, a negative pressure is applied to said penetrable side to force the sewage or water to flow through the filtering module and then the mixed liquid is aerated to make said porous carriers in contact with said filtering module to reduce the dirt deposit on filtering module.

Description

Technical field [0001] The present invention relates to a wastewater / water treatment method using an immersed membrane bioreactor, in particular to a wastewater / water treatment method in which a biological support is further placed in the immersed membrane bioreactor. Background technique [0002] When the activated sludge method is used to treat wastewater, the idea of ​​using ultrafiltration (MF) or microfiltration (MF) units to replace sedimentation tanks, sand filter tanks and other solid-liquid separation membrane biological treatment technologies, started in 1969 year. Compared with the traditional activated sludge method, the solid-liquid separation membrane biological treatment technology has many technical advantages, such as long sludge retention time, can treat wastewater with high concentration changes, and does not require a sedimentation unit (saving space). Up to now, there are at least 500 solid-liquid separation membrane biological treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/14C02F1/44C02F3/08C02F3/10
CPCY02W10/10
Inventor 洪仁阳张王冠邵信张敏超
Owner IND TECH RES INST