Baffle Sludge reactor with oligachaeta worm reduction

Abstract

A baffled oligochaeta worm mud decrement reactor is a container with rectangular opening. A side wall of rectangular container is lower other three side walls, a container(2) is connected with the top of external wall opposed to low side wall and a side wall is also the wall of rectangular wall. The container(2) is mud pretreatment area, a container(2) is connected with the top of external wall, the other three side walls are higher the low side wall and connected to high side wall of rectangular container parallel, a back plate(8) is installed at one side of low side wall of rectangular-opening container, area between back plate(8) and rectangular container is solid-liquid separating settling area(13), area between back plate(8) and high side wall of rectangular container is oligochaeta worm growth area.

Description

technical field [0001] The invention belongs to the field of equipment for treating sludge using biological technology, in particular to a baffled oligochaete worm sludge weight reduction reactor. Background technique [0002] Activated sludge method is currently the most widely used biological treatment technology in urban sewage and industrial wastewater treatment plants in the world, but the disadvantage is that a large amount of residual sludge will be generated during operation. In Europe and the United States, the infrastructure cost of sludge treatment accounts for 60% to 70% of the total infrastructure cost of sewage treatment plants, and the operating cost of sludge system accounts for 40% of the total operating cost. According to my country's urban sewage treatment plant construction plan, by 2010, the annual output of sludge will reach five times the current level. If the remaining sludge cannot be effectively treated and disposed of, it will directly affect the ...

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Problems solved by technology

[0002] Activated sludge method is currently the most widely used biological treatment technology in urban sewage and industrial wastewater treatment plants in the world, but the disadvantage is that a large amount of residual sludge will be generated during operation

However, since the original metazoans and the bacteria that degrade pollutants grow together in the same bioreactor (aeration tank), and the operating conditions of the aeration tank are mainly conducive to the degradation of organic matter by bacteria and other microorganisms, it is not completely suitable for the original metazoans, especially It is the growth of oligochaete worms, so the growth of oligochaete worms is unstable, resulting in insignificant sludge reduction effect

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