Biological reaction system based on flexible suspended filler and operation control method thereof
A technology of suspended filler and biological reaction, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of short service life, difficult film formation, easy clogging, etc., and achieve long-term Effects of service life, energy saving, and operating cost reduction
Pending Publication Date: 2018-12-14
陕西新立本环保科技有限公司
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Problems solved by technology
[0004] In order to overcome the disadvantages of difficult film formation, difficult maintenance, short service life, and easy blockage caused by the combination of existing suspended fillers and aeration trays, the purpose of the present invention is to provide a biological reaction system based on flexible suspended fillers and its operation. The control method uses a flexible suspension filler made of PPC as an aerobic biological carrier, and the aeration releaser adopts a cyclone aerator
Method used
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example 1
[0058] The method is mainly an operation method of a biological reaction system, and can be applied to new construction, reconstruction and expansion projects of municipal sewage treatment plants and industrial sewage treatment plants.
[0059] Such as figure 1 , 2 , 5, and 6, this example adopts the conventional A2 / O+ filtration process, and for the A pool and the O pool, the process of the present invention is adopted.
[0060] In the O pool, add flexible suspension filler 19 made of PPC, and use swirl aerator 5 to supply oxygen. The swirl aerator 5 is arranged in partitions along the water flow direction, and the air volume is preset to gradually increase, and the increment is 5-15%. . A screen is installed at the end of the O tank, and a flushing pipe is set to blow off. A water retaining wall is installed in front of the screen, and the water retaining wall is at an angle of 105° to the direction of water flow. An air lift device is installed behind the screen, and the...
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The invention discloses a biological reaction system based on a flexible suspended filler and an operation control method thereof. A bioreactor comprises a tank A and a tank O separated from the tankA by a partition wall. The bioreactor is provided with a water inlet and a water outlet. The tank O is filled with a flexible suspended filler and is orderly provided with a water retaining wall and ascreen. The bottom zone of the tank O is uniformly provided with swirling aerators. The screen is provided with a flush pipe and a stripping device. A stripping device is provided with a feeding inlet, a gas pipe filler return pipe, a nitrifying liquid return pipe and a material liquid separator. The material liquid separator is provided with a bell mouth, a funnel and a grid plate. The swirlingaerators are uniformly arranged at the bottom of the tank O. A flow linkage control valve controls the aeration amount of each swirling aerator. The stripping device returns the flexible suspended filler and the mixed liquid so that the inner circulation of the nitrifying liquid is realized. The material liquid separator separates the filler and the mixed liquid and feeds them respectively into the tank A and the tank O. The flexible suspended filler improves the nitrification efficiency and the oxygen utilization rate, improves the treatment capacity and reduces the energy consumption and sludge.
Description
technical field [0001] The invention belongs to the technical field of sewage treatment and relates to a biological reaction tank, in particular to a biological reaction system and an operation control method based on flexible suspension fillers. Background technique [0002] A 2 The / O method is widely used in domestic sewage treatment projects. In the aerobic process section, fixed fillers or suspended fillers are often used to increase the biological carrier to increase the amount of microorganisms in the aerobic tank. In recent years, the suspended filler process is more common. The aeration system often uses an aeration disc to aerate the water body with oxygen. However, the combination of suspended filler and aeration disk has disadvantages such as difficult film formation, difficult maintenance, short service life, and easy clogging based on engineering experience. [0003] Recently, a flexible suspended filler made of PPC was used as an aerobic biological carrier ...
Claims
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Login to View More IPC IPC(8): C02F3/30
CPCC02F3/301Y02W10/10
Inventor 张建安张豪张鹏翔李耀中
Owner 陕西新立本环保科技有限公司