Quick start method for low-concentration anaerobic reactor

Abstract

The invention discloses a quick start method for a low-concentration anaerobic reactor. A folded plate anaerobic reactor device is started by adding powdered activated carbon at the temperature of 24 DEG C in a natural biofilm formation mode, the biofilm formation speed is high, the adaptive capacity of an anaerobic biofilm to the environment in the reactor is high, no disengagement is likely to happen when the water quality condition is changed, and high anti-load-impact capacity is achieved.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a method for quickly starting a low-concentration anaerobic reactor. Background technique [0002] The start-up of the anaerobic reactor refers to the proliferation of anaerobic microorganisms under certain conditions to form a sludge body composed of various microbial species to achieve a stable degradation efficiency. The start-up of the reactor is the premise of stable operation, which can be divided into three ways: self-inoculation start-up, granular sludge start-up and other sludge inoculation start-up. The anaerobic reactor needs 60d at the temperature of 30°C during the start-up period; 80d at the temperature of 20°C. Because anaerobic bacteria proliferate slowly, and most anaerobic microorganisms are cocci and bacilli, they are not easy to attach and grow, and are easy to flow out of the reactor with the effluent. If conditions conducive to the growth of filamentous bacte...

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Problems solved by technology

However, in the process of starting, the impact resistance is small and the inoculated biofilm still has a replanting process in the reaction device. When the water quality changes slightly, the biofilm is easy to fall off.