Improved unpowered type sewage biological purification device

Abstract

The invention relates to an improved unpowered type sewage biological purification device comprising a mixed flow expanded-bed anaerobic biological treatment unit and a water-dropping aeration unit, wherein the mixed flow expanded-bed anaerobic biological treatment unit and the water-dropping aeration unit are both arranged in a closed glass steel cylindrical tank body; the mixed flow expanded-bed anaerobic biological treatment unit comprises a biological filter which is arranged at the lower middle inside the glass steel cylindrical tank body; the upper end of the biological filter is provided with a necking mouth; the outer edge of the necking mouth is provided with the water-dropping aeration unit; the necking mouth arranged on the upper end of the biological filter is internally provided with a filtering screen; anaerobic suspended fillers are arranged below the filtering screen; and the bottom of the biological filter is provided with an umbrella-type water distributor. The invention has small occupying area and a difficultly corroded steel shell, enhances the anaerobic reaction efficiency due to the large biofilm formation amount of the anaerobic suspended fillers, has poor water distribution uniformity of a water inlet pipe and a water distribution pipe, is convenient to maintain by adding a sludge suction device, can realize that a whole system can be used when connected after the anaerobic suspended fillers are loaded because the anaerobic suspended fillers can be processed with pre-biofilm formation, is easy to realize the standard and batch production and popularize and apply due to water-dropping aeration without power consumption.

Description

technical field [0001] The invention relates to an urban domestic sewage purification device, in particular to a non-powered sewage biological purification device. It is mainly used for water source protection, river sewage treatment, new rural construction sewage treatment, etc. It can treat sewage with high efficiency, low energy consumption and low operating cost and reuse it as reclaimed water, saving water resources. It can be popularized and used in government agencies, colleges, residential quarters and other places far away from the municipal pipe network, especially suitable for unmanned places. Background technique [0002] With the continuous growth of population and the rapid development of economy, water consumption and drainage are increasing year by year, while limited water resources are constantly polluted, resulting in increasing shortage of water resources. In order to solve this situation, large-scale centralized sewage treatment plants have been built ...

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to provide an improved non-powered sewage biological purification device to solve the problem of large floor area and insufficient effective water depth in the prior art, which affects the anaerobic reaction efficiency; the steel shell is easy to corrode; anaerobic suspension The film-hanging amount of the filler is small, which affects the efficiency of anaerobic reaction; the uniformity of water distribution in the water inlet and water distribution pipes is poor; there is no sludge suction device, and maintenance is inconvenient; the anaerobic suspension filler has no pre-hanging film treatment, and it cannot be used after filling. The whole system can be connected and used immediately; the structure of the drop water aeration unit is relatively complicated, which requires an aerator, and the power consumption is large, so it is not easy to cause problems in mass production

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