The Biosorption of Selected Pesticides from Water by Biologically Activated Carbon

Abstract

The work describes a study of the possibility of removal of organo-phosphorus insecticide quinalphos and organochlorine herbicide lindane from water by using the biofilm formed on active carbon. It was established that two similtaneous processes took place in the biosorption column - adsorption and microbiological degradation of the adsorbed matter. At the shock concentrations of lindane in the influent, an inhibition of microbiological processes in the biofilm occurred. It was observed that the biosorption system was more efficient in the removal of the organo-phosphorus insecticide than of the organo-chlorine herbicide.

Industrial implementation of a biosorption system with GAC

“…Therefore, biochemical processes can be combined with sorption into one biosorption system, where biological treatment and adsorption take place simultaneously. Many authors (Sirotkin et al [6]; Walker and Weatherley [8]; Dalmacija et al [9]; Tumbas et al [11]; Mochidzuki and Takeuchi [12]) state the fact, that biosorption is more efficient and cost-effective than the consecutive adsorption and biological treatment. These systems are capable of maintaining high levels of treatment and high degrees of stability and reliability.…”