Abstract The intention of the work is to evaluate absorption lead and cadmium in water, by means controlled tests, a protocol based on preparation 3 types concentrations indicated metals, water sample 1 liter, used dose flocculants was made 5 groups, with varied times rest are from minutes 30 minutes, method that presented these concentrations, characterized being able use different situations ...

Solid/liquid separations are a mature technology area and few new developments occurred in seventies and eighties. However, last decade witnessed appearance of a significant number of new innovative systems in this field. (Rubio et al., 2002) This paper describes new developments in mixing, coagulation, flocculation and flotation systems for industrial wastewater treatment. (Ross et al., 2000; ...

Exopolysaccharides (EPSs) are important biopolymers with diverse applications such as gelling compounds in food and cosmetic industries bio-flocculants pollution remediation bioplastics production. This research focuses on enhancing crude EPS production from Rhodotorula mucilaginosa sp. GUMS16 using the central composite design method which five levels of process variables sucrose, pH, ammonium...