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

Abstract

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.

Transforming Alcoholic Vinasse: Improving Biodegradability and Reducing Toxicity through Hydrodynamic Cavitation – A Review

“…In this context of research and scientific applications, hydrodynamic cavitation has established itself as an effective pretreatment method, with important applications in various aspects related to wastewater treatment and environmental processes. This approach has demonstrated efficient results in phenol removal using a Venturi tube [33]. In addition, its application has been confirmed in the disinfection of water, where its implementation through the use of orifice plates demonstrated high efficiency [34].…”

“…Removal of melanoidins in alcohol distillery wastewater involved the series arrangement of two pumps, a 1 HP peripheral pump followed by a 3 HP centrifugal pump. Similarly, to address phenol removal in wastewater, a 5 kW positive displacement pump was used [33]. Figure 2 illustrates the schematic of a hydrodynamic cavitation unit with an orifice plate.…”

Study of the Influence of Cavitation and Magnetic Field on the Change of Water Properties and its Purification in a Vibrating Machine with Determination of Drive Modes

“…Cavitation processes are widely used in various technologies, namely: in the purification of water from industrial effluents [1][2][3][4], textile industry effluents [5,6], in the woodworking industry [7,8], printing ink wastewater [9], drugs [10] and decontamination [11][12][13][14][15]. Also, in various branches of industry, the effect of a magnetic field is widely used to change the properties of water [16][17][18].…”

Rapid Degradation of Chlortetracycline Using Hydrodynamic Cavitation with Hydrogen Peroxide

“…Then, in the divergence zone downstream, the pressure is restored owing to the expansion of the flow cross-sectional area, causing the collapse of bubbles [ 17 , 18 , 19 ]. Extreme conditions are formed inside the bubble because the internal gas is compressed significantly during bubble collapse [ 20 ]. The dissociation of water molecules is activated, thereby resulting in the generation of hydroxyl radicals.…”