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AssigneeXi'an University of Architecture and Technology
InventorsRong Chen, Zhen Lei, Jiale Zheng, Hong Luo
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Provided is a biochar-anaerobic membrane biological treatment system and process. The system mainly includes a reaction tank, a membrane module, a macroporous gas distribution device, low-temperature pyrolysis biochar. The application of the process to sewage treatment shows that: under the conditions that the hydraulic retention time is 3.2-7.2 h, the membrane flux is 12.0-17.8 L/m2/h, and the sludge concentration of 7.2-15.6 g/L, multiple objectives of promoting organic micropollutants (OMPs) biotransformation, accelerating methane production and strengthening membrane fouling control were achieved. The system improved OMPs removal efficiency by more than 20%, decreased membrane fouling rate by 50%, and reaching an organic matter removal efficiency of more than 86% at low temperature. The system and process solve the problems of poor OMPs removal efficiency, serious membrane fouling, and low methane yield at low temperature in the anaerobic membrane biological treatment system.
A biochar-anaerobic membrane biological treatment system, comprising a reaction tank (1), a membrane module (2) installed in the reaction tank (1), a gas distribution device (3) located at the bottom of the reaction tank (1), a water inlet pump (12) and pipe fittings for supplying water to the reaction tank (1), a water outlet pump (7) for discharging water treated by the membrane module (2), and a biogas circulating pump (6) for introducing biogas from the reaction tank (1) into the gas distribution device (3);
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