Rotary aerator; -- Mixing, kneading, crushing, grinding, screening, sifting, homogenising, emulsifying or stirring machines (HS 847982). Liquid wastes. Sludge (ICS 13.030.20)

National Standards of the P.R.C., Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Rotary Aerator in Wastewater Treatment (5 page(s), in Chinese)

The standard specifies terms and definitions, the limit values of energy efficiency, energy efficiency grades, technical requirements and test methods for rotary aerators in wastewater treatment. The standard applies to the rotary aerator driven by motor or reducer, and self-suction submersible aerator connected with motor directly, dealing with all kinds of industrial wastewater, municipal wastewater biological treatment process and water source surface remediation.