Slightly heavy particle system for wastewater treatment

Abstract

The present disclosure discloses a slightly heavy particle system for wastewater treatment, comprising a contactor. Said contactor includes a gas-liquid-solid three-phase region, and said gas-liquid-solid three-phase region includes gas phase, liquid phase, and solid phase. Said liquid phase is the continuous phase and said solid phase is slightly heavy particles. Said slightly heavy particles are able to carry some microorganisms on their surfaces at least, and the density of said slightly heavy particles is higher than the density of said liquid. The slightly heavy particle system of the present disclosure applied in wastewater treatment can increase the concentration of microorganisms significantly, improve the ability to bear impact load, produce less sludge, and without sludge expansion. Meanwhile, the means to suspend slightly heavy particles with the combined effect of gas and liquid is able to reduce energy consumption to a larger extent. Therefore, this system features with high efficiency and low energy consumption.

Dependencies are inferred from the claim text.