Pipe type membrane element and submerged membrane bioreactor

A technology of tubular membranes and membrane elements, which is applied in the field of membrane bioreactors and their membrane elements. It can solve the problems of increased cleaning difficulty, easy fiber breakage, and fiber breakage, so as to reduce the probability of breakage, not easy to break, and easy to clean. Effect
CN101874987AInactive Publication Date: 2010-11-03上海膜达克环保工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海膜达克环保工程有限公司
Publication Date
2010-11-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a pipe type membrane element and a submerged membrane bioreactor. The submerged membrane bioreactor comprises a reaction tank and a membrane element, wherein the membrane element is positioned in the reaction tank and comprises an inner cavity and a water-permeable cylindrical supporting layer; the outer surface of the supporting layer is wrapped with an organic filter membrane layer; the upper end of the inner cavity is closed, and the lower end of the inner cavity is provided with a water outlet; and the reaction tank is also internally provided with a water collecting disk connected with the water outlet of the membrane element. The invention is difficult to break and block and can effectively reduce the cost of the membrane element and decrease the times of chemical cleaning, thereby prolonging the service life of a membrane and reducing the operation cost.
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Description

technical field

[0001] The invention relates to water and waste water treatment equipment, in particular to a membrane bioreactor and its membrane elements. Background technique

[0002] The existing membrane bioreactor MBR process mainly uses a microfiltration membrane element with a pore size of about 0.1 microns and a membrane filament inner diameter of about 1 mm, and adopts a built-in immersion process to separate the activated sludge mud-water mixture after the biological reaction to achieve water purification. Purpose. The submerged hollow fiber membrane bioreactor, due to its cost advantage, occupies most of the practical application engineering cases, and is the main application form of the membrane bioreactor process. However, in practical engineering applications, hollow fiber membranes have several obvious technical defects: 1. The fibers are easily broken during the vigorous stirring process; 2. It is difficult to clean, and generally need to be taken out of th...

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
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