Method for evaluating organic matter degradation and nitration reaction activity of sewage treatment plant

Abstract

The invention discloses a method for evaluating organic matter degradation and nitration reaction activity of a sewage treatment plant, and relates to the technical field of active sludge distinguishing methods. S2, constructing a matrix description graph; s3, constructing an activated sludge model; s4, constructing a metering coefficient table; and S5, calculating and comparing. According to the method for distinguishing the organic matter degradation and the nitration reaction in the activated sludge process action process, the ASM method is used for calculating the theoretical degradation rate, and compared with a Mie equation method and the ASM method, all reaction processes of sludge are fully considered, the method better fits the actual situation, and errors are avoided; according to the method, nitration of ammonia nitrogen is calculated by a product, and the oxygen consumption of the ammonia nitrogen is expressed more accurately; the respiratory rate is calculated according to the actual degradation rate of each substance, and the difference can be better reflected by comparing the actual value with the theoretical value, so that the degradation rate of organic matters and nitrate nitrogen and the influence degree of sewage on each reaction can be better judged.

Description

technical field [0001] The invention relates to the technical field of differentiating activated sludge methods, in particular to a method for evaluating the reaction activity of organic matter degradation and nitrification in a sewage treatment plant. Background technique [0002] Activated sludge method is an important method in sewage treatment, which is widely used because of its economy and good treatment effect. Among them, the aerobic activated sludge method can degrade organic matter into small molecular organic matter or carbon dioxide and water, thereby reducing the content of organic matter in the water; in addition, the nitrifying bacteria in the aerobic activated sludge can oxidize ammonia nitrogen to nitrate nitrogen, which will facilitate the subsequent The utilization of nitrate by denitrifying bacteria, that is, the conversion of nitrate into nitrogen, is conducive to the removal of nitrogen. [0003] At present, the control of total nitrogen index in China...

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Problems solved by technology

[0003] At present, the control of total nitrogen index is very strict in China, and the control of total nitrogen in actual operation is relatively lagging behind. The composition of industrial wastewater is complex, and some pollutants will inhibit the degradation of organic matter or ammonia nitrogen nitrification after reaching a certain concentration, and this phenomenon It is the conventional indicators that cannot be indicated, that is, the conventional indicators of the influent of the sewage treatment plant are normal, but the abnormal phenomenon occurs in the biochemical system, and after the abnormal phenomenon cannot be distinguished, it is damage to the degradation of organic matter or nitrification reaction, which is not conducive to subsequent repairs

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