Abstract
The behavior of estrogenic effect substances between solid and aqueous phases in drinking water treatment was investigated. Laboratory experiments evaluated the sorption and desorption of each substances, the rate of removal of those during the coagulation process and the speed of desorption at which estrogenic effect substances go back to aqueous phases. Furthermore, the behavior of estrogenic effect substances in a water purification plant implies that both coagulation and chlorination are important for the removal of estrogenic effects, and a considerable fraction of these substances are transferred to sludge phase.