Waste gas treatment equipment employing scrubber and membrane bioreactor and method thereof
A technology of waste gas treatment equipment and bioreactor, which is applied in biological water/sewage treatment, separation methods, chemical instruments and methods, etc., can solve the problems of high cost of purification and treatment of waste washing liquid, large amount of washing liquid, etc. The effect of exchange volume, low sludge yield and high volumetric benefit
Active Publication Date: 2006-11-22
IND TECH RES INST
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Problems solved by technology
Although they proposed different solutions to reduce the volatile organic compounds in the exhaust gas, they did not propose a solution to the shortcomings of the large amount of washing liquid and the high cost of subsequent purification of the waste washing liquid.
Method used
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Embodiment 1
[0044] Organic gas with isopropanol concentration of 200ppmv, with figure 1 and 2 The equipment of the present invention shown was processed, wherein the specifications of the injection unit were shown in Table 1, and the specifications of the membrane separation bioreactor were shown in Table 2. Under the condition of gas-liquid ratio of 710-830, the test was carried out for 13 consecutive days. The result is as image 3 As shown, the removal efficiency of isopropanol in the gas can reach more than 93%.
[0045] parameters
[0046] parameters
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The invention discloses a method for treating waste gas containing organic matter and odour substance, which employs washing tower and film-separated biological reactor to remove organic and odour matter from waste gas. The waste gas contact with washing liquid in washing tower, the organic and odour matter are adsorbed and removed by washing liquid, and the waste washing liquid is introduced into film-separated biological reactor for treatment. The treated water containing low content of suspended solid is recycled to washing tower for reuse.
Description
technical field [0001] The invention relates to a waste gas treatment technology that can save the amount of cleaning liquid in a washing tower, in particular to a waste gas treatment technology using a co-flow jet column (jet co-flow packing tray column) and a membrane bioreactor. Background technique [0002] The treatment of organic waste gas emitted by high-tech industries such as semiconductors includes incineration technology and wet scrubbing technology. The former has high energy consumption, greenhouse gas emissions and safety issues. The wet washing technology with higher safety has the disadvantages of large amount of washing liquid and high cost of subsequent purification of waste washing liquid. [0003] Taiwan Patent Publication No. 457120 discloses a method for reducing volatile organic compounds in exhaust gas. The method includes the steps of injecting ozone into the washing tower and fully mixing the ozone with the washing liquid. The volatile organic comp...
Claims
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Login to View More IPC IPC(8): B01D53/18B01D61/00C02F3/00
CPCY02E50/30
Inventor 徐树刚何宗仁刘文宗张瑞玉
Owner IND TECH RES INST
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