An effluent discharge simulating and denitrifying experiment device for a rural septic tank and a using method of the device

Abstract

An effluent discharge simulating and denitrifying experiment device for a rural septic tank is disclosed. An original-sample water container contains original sample water of the septic tank. The original sample water is fed into an automatic sample injector. A siphon is disposed in the automatic sample injector. One end of the siphon extends out of the bottom of the automatic sample injector and is connected to a water distributor, and the other end of the siphon is disposed in the automatic sample injector. The water distributor is a sealed container full of the original sample water of the septic tank. A plurality of water distributing pipes are inserted into the water distributor from the upper part of the water distributor. The other end of each of the water distributing pipes is connected to a corresponding septic tank original sample water experiment bottle. The experiment bottles are connected to a denitrifying gear. The inner cavity of a denitrifying box is provided with a plurality of separating walls according to the water flowing direction. Denitrifying bacterium carriers are disposed in separating cavities. The device can simulate effluent discharging conditions of the rural septic tank, achieves automatic effluent discharging simulation, can perform a plurality of groups of repeat experiments simultaneously, is high in efficiency and is advantaged by having a septic tank effluent denitrifying function.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, and in particular relates to an experimental device for simulating and denitrifying treatment of sewage discharge from septic tanks in rural areas and an application method thereof. Background technique [0002] Taihu Lake Basin is one of the regions with the most developed regional economy in China. In recent years, the living standards of rural residents have improved rapidly, and their lifestyles have become increasingly urbanized. Type domestic sewage has become an important source of nitrogen and phosphorus pollution in the Taihu Lake Basin. As a result, the Taihu Lake Basin has gradually carried out the construction of rural domestic sewage treatment and treatment facilities, with biochemical-ecological treatment technology as the mainstream treatment process. Commonly used technologies include artificial ecological wetlands , capillary infiltration ditch, tower-type earthw...

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Problems solved by technology

[0004] Before the large-scale promotion of the above technologies, it is necessary to optimize the value of the system characteristic parameters in the indoor simulation, and the indoor simulation experiment should first follow the natural discharge law of the septic tank sewage. At present, the simulated sewage discharge is generally operated by artificially injecting sewage , during research, it is necessary to operate multiple experimental repeat subsystems at different times of the day, which is not only troublesome, but also produces experimental errors, which will affect the results of simulation experiments

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