Sewage deep processing apparatus used for biological nitrogen and phosphorus removal
A treatment device and a technology for biological denitrification, which are applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., which can solve the problems of increasing the volume of the reaction tank and increase the number of microorganisms , The effect of reducing excess sludge production and maximizing nitrification rate
Inactive Publication Date: 2013-07-24
IL WOO ENVIRONMENT CO LTD
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Problems solved by technology
Therefore, in the ordinary BNR system, the nitrification process is placed in the subsequent process to deal with this competition, but for denitrification, the internal circulation is carried out and the volume of the reaction tank is increased for sufficient nitrification, which leads to cost problems
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[0064] Use the same specifications as in Example 1 Under the same conditions as in Example 1, the raw sewage water with the properties shown in Table 3 is treated. The difference is that the proportion of MBA in the second aerobic tank is 15% by volume. The total volume of the sewage flowing into the sewage deep treatment device is a benchmark, the sewage flowing into the anaerobic tank accounts for 90 volume %, the sewage flowing into the anoxic pool accounts for 10 volume %, and the return rate of the sludge is 25 volume % (reflux sludge / into the water).
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According to a sewage processing apparatus which utilizes the A2 / O process to treat sewage, a membrane attached biofilms (MAB) is introduced in a second aerobic tank, and the processing efficiency of a nitrogen-containing compound and a phosphorus-containing compound in sewage can be increased. The sewage deep processing apparatus has the characteristics of nitration rate maximization, denitrification rate improvement, microbe individual amount increasing and residual sludge generation amount reduction while processing the sewage, thereby, the sewage deep processing apparatus can be taken as an effective processing apparatus in a whole field of sewage processing and can be wildly used.
Description
technical field [0001] The present invention relates to a sewage deep treatment device for biological denitrification and phosphorus removal, in particular to a sewage deep treatment device for biological denitrification and phosphorus removal using epiphytic biofilm technology. 2 The aerobic reactor of the sewage treatment plant in the O process is equipped with membrane attached biofilms (MAB), which improves the treatment efficiency of nitrogen-containing compounds and phosphorus-containing compounds contained in sewage. Background technique [0002] Removing nitrogen from sewage treatment water is an urgent problem to maintain the water environment. In order to solve this problem, the widely used biological nitrogen removal (biological nitrogen removal, hereinafter referred to as BNR) process can only be regarded as completed when nitrification and denitrification are respectively successfully realized. [0003] Usually, the core process of the BNR process is nitrificat...
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Inventor 姜龙太张暎一金泰圻金命玭韩翔允孙廷昊金缘银
Owner IL WOO ENVIRONMENT CO LTD