Sewage biochemical treatment equipment

Abstract

The invention provides a sewage biochemical processor, comprising a shell body, a water distributor, an aerator, filling materials, a supporting board and a mud-water-gas separating device that are arranged in the shell body, an inlet tube, an outlet tube and a mud discharging tube that are connected with the shell body and arranged outside the shell body, and gas gathering holes arranged at the top part of the shell body. The invention is characterized in that: the mud-water-gas separating device is formed by inclined boards or inclined tubes that are arranged on the upper part of the shell body in an inclined way and in parallel with each other, a drug feeder is arranged between the filling materials and the mud-water-gas separating device in the shell body and connected with a drug feeding tube arranged in a drug feeding device outside the shell body, and a return tube, the upper end and the lower end of which is communicated with the outlet tube and the inlet tube, is provided. The invention has reasonable and compact structure and compound filling materials that are in reasonable arrangement, thus, biochemical effects of biological oxidation, flocculation and absorption, etc. to the sewage and physical and chemical effects of filtration, micro-flocculation, sedimentation, etc. can be completed in the same tank body, thereby having the advantages of high treatment efficiency, rapid start, low cost, simple operation, easy maintenance and lower operating cost.

Description

technical field [0001] The invention belongs to the technical field of environmental protection water treatment engineering, in particular to a sewage biochemical processor. Background technique [0002] As a low-energy biological treatment method for organic wastewater, anaerobic digestion technology has received more and more attention, and a variety of anaerobic bioreactors have been developed, such as anaerobic filter (AF), upflow anaerobic Oxygen sludge bed reactor (UASB), anaerobic attached film expanded bed (AFFEB) and anaerobic fluidized bed (AFB), etc., are more representative of UASB, but in the application process, it is found that there are some problems in UASB, Such as: ①Slow start-up (generally takes about 3 months), and the rising flow rate of liquid is small; ②Poor separation of mud and water, especially at the beginning of start-up, the sludge loss is serious; ③There are certain requirements for the SS of the incoming water; ④The temperature is affected Th...

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Problems solved by technology

[0002] As a low-energy biological treatment method for organic wastewater, anaerobic digestion technology has received more and more attention, and a variety of anaerobic bioreactors have been developed, such as anaerobic filter (AF), upflow anaerobic Oxygen sludge bed reactor (UASB), anaerobic attached film expanded bed (AFFEB) and anaerobic fluidized bed (AFB), etc., are more representative of UASB, but in the application process, it is found that there are some problems in UASB, Such as: ①Slow start-up (generally takes about 3 months), and the rising flow rate of liquid is small; ②Poor separation of mud and water, especially at the beginning of start-up, the sludge loss is serious; ③There are certain requirements for the SS of the incoming water; ④The temperature is affected The impact is serious. Foreign studies have shown that at room temperature (15-20°C), the treatment efficiency is very low; ⑤ Poor adaptability to low-temperature, low-concentration wastewater and high-concentration or toxic industrial wastewater

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