Anaerobe and pressure waste water treatment method and device
An anaerobic biology and wastewater pressure technology, applied in anaerobic digestion treatment, waste fuel, etc., can solve the problems of lower wastewater purification rate, reduce the contact area between sludge particles and wastewater, and the loss of suspended solids, so as to improve the biochemical reaction rate , excellent airtight performance, high mass transfer rate effect
Inactive Publication Date: 2009-03-25
王宝瑞
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Problems solved by technology
[0002] At present, the water outlets of various types of reactor production devices for treating wastewater are connected to the atmosphere. In the reactor, the granular sludge is sheared by the rapidly rising wastewater, which increases the number of small particles and reduces the amount of sludge. The contact area between the particles and the wastewater, and the suspended solids in the wastewater, will gradually decrease under the hydrostatic pressure with the increase of the rising height, causing a large loss of suspended solids and reducing the purification rate of the treated wastewater
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[0011] In Fig. 1, the pressure anaerobic bioreactor device 1 and the grid filter fine filter water outlet 2 are two independent devices, which are connected by an outlet pipe 19 and form the main body of the wastewater pressure anaerobic biological treatment reactor device. The reactor shell 3 is a closed tower reactor with a large aspect ratio, and the intermediate air seal 17 in the device separates the reactor device into two units, the bottom reaction zone 7 and the upper reaction zone 8 . In the reactor device, the double helix guide plate 10 is turned up along the inner wall of the shell to form two spiral guide chambers, the first guide spiral flow chamber 11 and the second guide spiral flow chamber 12, and the outlet faces the upper collector. The gas hood 13, the water inlet pump enters from the bottom of the reactor device, and under the distribution of the water distributor 27, the water flows in the spiral flow guide cavity, and rises along the helix angle of the sp...
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The invention discloses a method for wastewater pressure anaerobic biological treatment and the reactor device. When treating wastewater, the wastewater-particle sludge contact time is prolonged and the wastewater to particle sludge shearing strength is decreased, which makes wastewater be mixed with particle sludge completely and large amount of organics convert to methane. Using pressure produced in biological metabolism, the suspension solid is filtered out at grid filtering layer, which make the quality of water outlet approach to definite purity, and the water inlet volume load factor of the reactor being improved substantially. And the produced methane also has definite pressure, being pressure methane.
Description
Technical field [0001] The invention relates to a method and device for anaerobic biological treatment of wastewater, in particular to a method and device for anaerobic biological treatment of wastewater under pressure. Background technique [0002] At present, the water outlets of various types of reactor production devices for treating wastewater are connected to the atmosphere. In the reactor, the granular sludge is sheared by the rapidly rising wastewater, which increases the number of small particles and reduces the amount of sludge. The contact area between the particles and the wastewater, and the suspended solids in the wastewater, are gradually reduced by the hydrostatic pressure as the rising height increases, causing a large loss of suspended solids and reducing the purification rate of the treated wastewater. Contents of the invention [0003] In order to increase the upflow velocity of the wastewater in the reactor, reduce the shear strength of the wastewater ...
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IPC IPC(8): C02F3/28
CPCY02E50/30
Inventor 王宝瑞
Owner 王宝瑞