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...

this research compares the performance of floating systems planted with vetiveria zizanioides as a hydroponic approach for removing nutrients from two contaminated waters. for this purpose, two pilots with overall net volume of 60 litres were constructed and inoculated by secondary treated domestic wastewater (stdw) and irrigation water obtained from minab reservoir (iwmr) in batch mode. regard...

Abstract The aim of the study was to evaluate efficiency Lemna minor purify synthetic dairy wastewater (SDW) and real (RDW), both diluted undiluted. Results showed that significantly reduced electrical conductivity (EC); removal for EC 19.4% in RDW 9.8% SDW. Higher values were recorded (DRDW) (41%) (DSDW) (35.8%). Total suspended solids slightly (14%) SDW (13.5%), compared DSDW (25%) DRDW (29%)...

Worldwide, environmental regulatory establishments are setting strict standards for discharge of wastewaters from industries. Anaerobic digestion is an environment friendly technology to treat industrial wastewaters. Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen. For the treatment, cheese-dairy wastewater is taken...