Biological aerobic contact fluidization tower
An aerobic contact and fluidization tower technology, applied in the field of environmental protection, can solve the problems of high COD of mixed sewage, difficulty in meeting discharge standards, single function, etc., and achieve the effect of increasing area and time, eliminating tail gas pollution, and increasing volume load
Pending Publication Date: 2017-02-22
江苏兴海环保科技有限公司
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Problems solved by technology
Most of the traditional wastewater treatment devices have a single function, or are chemical treatment devices or microbial treatment devices, and the COD of mixed sewage is high, and contains refractory impurities, and it is difficult to meet the discharge standard for some highly mixed sewage
Method used
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Embodiment 1
[0012] Such as figure 1 The shown biological aerobic contact fluidization tower includes a rising cylinder 1 and a descending cylinder 2, the descending cylinder 2 is set outside the rising cylinder 1, the bottom of the rising cylinder 1 is provided with a water inlet 3 and a mud discharge port 4, and the rising cylinder 1 The top is provided with an air intake pipe 5 extending into the bottom, and the end of the air intake pipe 5 extending into the bottom of the ascending cylinder 1 is provided with a central air distributor 6, and the surrounding of the air intake pipe 5 in the ascending cylinder 1 is filled with packing 7, and the top of the ascending cylinder 1 and the descending cylinder 2. A water pipe 8 is provided at the connection, and a water outlet 9 is opened on the side wall of the descending cylinder 2 at the connection. The top of the ascending cylinder 1 is provided with a No. 1 inspection hole 11, and the bottom of the descending cylinder 2 is provided with a N...
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The invention discloses a biological aerobic contact fluidization tower. The biological aerobic contact fluidization tower comprises an ascending cylinder and a descending cylinder, the descending cylinder sleeves outside the ascending cylinder, a water inlet and a sludge outlet are arranged at the bottom of the ascending cylinder, a gas inlet tube is arranged at the top of the ascending cylinder and stretches into the bottom of the ascending cylinder, the tail end of the gas inlet tube stretching into the ascending tube is provided with a central gas distributor, a filler is arranged surrounding the gas inlet tube in the ascending tube, the connection of the top portion of the ascending cylinder and the descending cylinder is provided with a water introducing tube, and the sidewall of the descending cylinder in the connection is provided with a water outlet. Compared with towers adopting traditional technologies, the biological aerobic contact fluidization tower disclosed in the invention has the advantages of small occupied area and small output of residual sludge. A special structure makes almost all active sludge be reserved in the tower, so the volume load is effectively increased; the ascending flow and the circulating flow of sewage in the tower greatly increase the sludge and water contact area and prolong the sludge and water contact time; increase of the height of the tower realizes a nitrogen removal function; the retention time of 2-6 h makes most organic matters be decomposed and removed; and a special waste gas discharging system eliminates tail gas pollution and avoids foam accumulation.
Description
technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a biological aerobic contact fluidization tower. Background technique [0002] Wastewater treatment devices can effectively treat urban domestic sewage, industrial wastewater, etc., and prevent sewage and pollutants from flowing directly into waters, which is of great significance for improving the ecological environment, improving urban quality and promoting economic development. Most of the traditional wastewater treatment devices have single functions, or are chemical treatment devices or microbial treatment devices, and the mixed sewage has high COD and contains refractory impurities, so it is difficult to meet the discharge standards for some highly mixed sewage. Contents of the invention [0003] Purpose of the invention: the purpose of the present invention is to provide a biological aerobic contact fluidized tower for the deficiencies in the prior art...
Claims
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IPC IPC(8): C02F3/08
CPCC02F3/085C02F2203/006Y02W10/10
Inventor 宋旭吴竹庆刘立平
Owner 江苏兴海环保科技有限公司