Air flow and machinery double-boosting internal circulation-type high suspension solid anaerobic digestion device

Abstract

The invention belongs to the technical field of environmental protection processing devices, and relates to an air flow and machinery double-boosting internal circulation-type high suspension solid anaerobic digestion device. The device comprises a material charging pipe, an internal cylinder section, an external cylinder section, a three-phrase separation section, a mixing section, a water discharging pipe, a sludge discharging pipe, a methane collecting pipe, a sampling detection port and the like. The material charging pipe sends suspension solid to the internal cylinder section directly; in the internal cylinder section, anaerobic sludge and the suspension solid are mixed and elevated through double power actions of generated rising methane air flow after reaction and mechanical blade boosting; then the mixed liquid goes into the three-phrase separation section; in the three-phrase separation section, waste water overflows and is discharged by the water discharging pipe, methane rises up and goes into the methane collecting pipe, the sludge settles and goes into the mixing section through the external cylinder section, part of the sludge goes into the internal cylinder section under the action of the above thrust and forms internal circulation, and the excess sludge is discharged by the sludge discharging pipe. The device can be used for processing of waste water containing high suspension solid, residual sludge, household garbage and the like. The device has remarkable social, environmental and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of environmental protection treatment equipment, and relates to an airflow mechanical double-boosting internal circulation type high-suspended solid anaerobic digestion device, which uses an anaerobic digestion method to treat high-suspended solid waste water, excess sludge, livestock and poultry manure, and kitchen waste. Garbage or household waste, etc. Background technique [0002] For the anaerobic digestion treatment of organic matter such as high-suspended solid wastewater, excess sludge, livestock and poultry manure, kitchen waste or domestic waste, in order to ensure a good anaerobic fermentation effect, it is necessary to make the suspended solids in the treatment object and anaerobic sludge Full contact and reaction, while ensuring that sufficient activated sludge can be maintained in the anaerobic digestion tank. However, the most widely used traditional anaerobic digestion tank currently adopts ...

AI Technical Summary

Problems solved by technology

This setting method causes the following problems in the anaerobic digestion tanks widely used at home and abroad: (1) The contact between the suspended solids and the anaerobic sludge is not sufficient, which affects the treatment effect; (2) The three-phase separation equipment and the reaction zone are not obvious (3) Anaerobic sludge cannot be quickly returned to the reaction zone, and a large amount of anaerobic sludge flows out of the anaerobic digestion tank with the anaerobic digestion liquid, causing anaerobic The concentration of anaerobic sludge in the oxygen digester is low and the sludge age is short

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