Biological disk, biological revolving drum and integrated revolving drum type domestic sewage treater

Abstract

The invention provides a biological disk, a biological revolving drum and an integrated revolving drum type domestic sewage treater. The biological disk comprises a circular support disk and blades fixed on the support disk; the blades are vertical to the support disk; an axial hole is formed in the centre of the support disk; the blades comprise lifting blades which are in a plurality of spiral structures in the same direction starting from the axial centre of the support disk; and the distance between every two spiral structures at the position close to a circle centre is more than that at the position far away from the circle centre. According to the invention, because the biological disk is provided with the lifting blades and aeration blades, the area of a turntable is greatly increased; furthermore, in the event of passing through the biological revolving drum disclosed by the invention, the water flow must flow through each disk; therefore, the superficial area contacted with sewage is greatly increased; the sewage treatment capability is greatly increased; the integrated revolving drum type domestic sewage treater is convenient for maintenance and low in intensity; and main body equipment is rustless and corrosion resistant.

Description

technical field [0001] The invention relates to an environmental protection engineering equipment, in particular to a biological disc, a biological drum and an integrated drum-type domestic sewage processor composed of them. Background technique [0002] In sewage biological treatment equipment, biological discs have been used since the 1950s and 1960s. Bio-discs are a biofilm wastewater treatment technology. Microbes and sludge ages that can survive for a long time can grow on biological discs. Long, with longer shock load resistance, good handling effect. In terms of process and maintenance operation, biological discs have the advantages of high microbial concentration, no need to return sludge, low power consumption, and low operating costs. However, the traditional bio-disc has problems such as low organic load, uncompact structure, small area, and large load of the central rotating spindle in the process of sewage treatment. [0003] Activated sludge method is a tradi...

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Problems solved by technology

[0005]①Large floor area: If denitrification is required to achieve nitrification and denitrification, the volume of the aeration tank required is larger;

[0006]②Large energy consumption: Mainly for the blower to supply oxygen, which consumes a lot of energy. If denitrification is required to achieve nitrification and denitrification, the reflux ratio needs to be increased. At this time, the reflux pump Energy consumption will also increase;

[0007]③ Loud noise: mainly the noise generated by the operation of the blower. If the blower is not maintained in time, the noise will be even greater, causing disturbance to the residents. The blower is installed in the integrated equipment After being buried underground, there is a danger of being flooded during the flood period;

[0008]④Complicated maintenance: the aeration pan and biological filler in the aeration tank need to be replaced in five to eight years according to the damage, and the biological filler will produce If it falls off, the blower needs to be maintained regularly;

[0009]⑤Most of the existing integrated domestic sewage treatment equipment only has manholes for maintenance. This method may not be carried out because workers do not understand the hazards of toxic gases during maintenance. Personnel poisoning or death due to ventilation

[0010]Due to the existence of the above-mentioned shortcomings, most of the conventional integrated domestic sewage processors stop running after a period of time, and become decorations, which cannot play their role. application function

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