High-efficiency beet sugar-manufacturing wastewater treatment system

Abstract

The invention relates to a high-efficiency beet sugar-manufacturing wastewater treatment system. The system is characterized by comprising an anaerobic baffled reactor and a biological aerated filter, wherein the anaerobic baffled reactor comprises a plurality of reaction chambers which are separated by vertical deflectors and are communicated in series; an air and water mixing chamber is arranged at the bottom part of the biological aerated filter; a plurality of long handle filter heads are installed at the top part of the air and water mixing chamber; an aerator pipe is arranged above the long handle filter heads; a cushion layer and a filter material layer are arranged above the aerator pipe; a water outlet pipe and a backsurge water outlet pipe are arranged on the side wall of the biological aerated filter above the filter material layer; and the water outlet of the anaerobic baffled reactor is connected with the water inlet pipe of the biological aerated filter. The system adopts the combined processes of physicochemical process and biochemical process and leads the beet sugar-manufacturing wastewater after desanding-precipitating to get through the anaerobic baffled reactor and the biological aerated filter, thus causing the processed effluent quality to meet the primary standard of the integrated wastewater discharge standard (GB 8978-1996).

Description

technical field [0001] The invention relates to a wastewater treatment device, in particular to a wastewater treatment device for beet sugar production. Background technique [0002] Beets belong to Chenopodiaceae, and there are wild species and cultivated species. Sugar beet is a variety of cultivated species, commonly known as sugar beet is one of the main raw materials for the sugar industry. There are more than 40 countries in the world planting sugar beets, mainly distributed at 30°-63° north latitude, with a total planting area of ​​nearly 8 million hectares and an annual output of nearly 300 million tons, of which about 80% are produced in Europe. [0003] China's sugar beets are mainly planted above 40° north latitude, including three major production areas in Northeast China (Heilongjiang, Jilin, Liaoning), North China (Inner Mongolia, Shanxi) and Northwest China (Xinjiang, Gansu, Ningxia). There are also a small amount of planting in Shandong, Jiangsu, Shaanxi, H...

AI Technical Summary

Problems solved by technology

[0009] The treatment of sugar beet sugar wastewater in China is still in its infancy, such as physical treatment methods such as biological turntable method, plate and frame filter press, or treatment processes based on light and bacteria. The wastewater treated by these processes still cannot solve the three high ( COD high, BOD high, SS high) problems, can not meet the national emission standards

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