introduction: humic acid (ha) is one the original disinfection byproducts processors in water treatment. so, removing it is necessary before water chlorination. in the present study, photodegredation of humic acid in water using ag/zno nano particle under uvc irradiation in batch system was investigated. material and methods: photocatalytic study was carried out to evaluate the effect of uvc (1...

biological removal of lead was observed in this study during treatment of synthetic solutions of this heavy metal by a sample of waste activated sludge (was) having mlss concentration of 10000 mg/l. the objective was determining the capability of was in removal of lead in three different conditions of treatment: without any aeration and feeding, by simultaneous aeration and feeding and by aerat...

The initial corrosion behavior of AZ63 magnesium alloy was investigated in 1, 3, 5 and 7 wt.% NaCl solutions by means potential, linear polarization, electrochemical impedance spectroscopy, polarization measurements, during exposure the media. Results show that increase chloride concentration provokes an rate. Based on obtained kinetics parameters mechanisms anodic dissolution hydrogen evolutio...

Abstract Ultrasonic sterilization is gaining progressively more attention for microbial without the drawbacks of heat, UV radiation, and chemical treatments. It crucial to understand ultrasonic cavitation in heterogeneous media order disable microorganisms efficiently by ultrasound. In this study, effect initial bacterial concentration on inactivation Escherichia coli was investigated over a wi...