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Phenol is a major pollutant in the waste waters coming from coal processing. Hydrodynamic cavitation presents a novel technology for phenol removal from waste waters. Hydrodynamic cavitation device with a cavitator of Ventury type for waste water purification was constructed. The hydraulic characteristic of the device were determined: the dependences of flow and cavitation number on inlet pressure. The effects of cavitation number, phenol concentration, pH, temperature, time, and quantity of added H 0 on the degree of phenol reduction in the waste water was investigated. The optimal 2 2 technological parameters of the investigated cavitation purification process of waste waters from phenol were determined.

A novel advanced technology for removal of phenol from wastewaters in a Ventury reactor