Solar heat and power combined low-temperature sewage treatment system

Abstract

The invention discloses a solar heat and power combined low-temperature sewage treatment system. The solar heat and power combined low-temperature sewage biotreatment system comprises a solar heat and power combining system and a sewage treatment system. The solar heat and power combining system comprises a solar heat and power combining component, a photoelectric controller, a storage battery, a photo-thermal controller, a temperature sensor I, a circulating water pump I, a circulating water pipe, a temperature sensor II and a heat insulation water tank. The sewage biotreatment system comprises a sewage biotreatment reactor, a temperature sensor II, a circulating water pump II, a heat exchange pipe, a blower, an aeration pipe, a water inlet pipe and a water outlet pipe. Power and heat converted from solar energy can be sufficiently utilized, zero energy consumption for sewage treatment is realized, automatic control is realized, and the environmental-protection design concepts of energy conservation, emission reduction, efficiency, reliability and environment friendliness are complied. The solar heat and power combined low-temperature sewage treatment system is suitable for being sewage treatment facility improving sewage treatment efficiency in cold regions of northern China.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a low-temperature sewage treatment system of solar heat and power cogeneration type. Background technique [0002] The climate in North China, Northeast my country and Northwest China is cold in winter, and the water temperature in winter is generally 4-7°C. A large number of studies have shown that: for aerobic biological treatment, low temperature has obvious adverse effects on the adsorption performance, sedimentation performance, microbial growth and development, population composition and oxygen transfer efficiency in the aeration tank of activated sludge in sewage biological treatment. It is difficult to obtain better processing effect. [0003] At present, in projects in cold regions of our country, it is generally used to reduce sludge load, increase sludge return flow, increase sewage residence time, and build some structures indoors to take measures such as he...

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Problems solved by technology

These measures will not only increase project investment and operating costs, but also it is difficult to guarantee the effect of sewage treatment, often causing problems such as sludge bulking

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