Akademik Veri Yönetim Sistemi
FRESENIUS ENVIRONMENTAL BULLETIN, cilt.21, ss.1982-1991, 2012 (SCI-Expanded)
The presence of heavy metals in wastewater and surface water is of major concern for public health and the environment. Increasing uses of metals and chemicals in the industrial process has resulted in pollution of rivers. Arsenic (AsIII) is one of the toxic metals found in the environment. In this study, the potential use of clay soil in the remediation of polluted heavy metal water to remove arsenic ions is presented. Adsorption of As(III) from solution phases was studied with respect to varying metal concentrations, pH values, temperatures and agitation times on clay soil. Maximum adsorption of As(III) was observed at pH 5.0 and 25 degrees C. An enhanced metal adsorption on 1.5 g clay soil with an agitation time of 60 min for As (III) was recorded. Maximum adsorption of As (III) 47.66 mg g(-1) was obtained from initially 50 mg/50 ml at optimal conditions. Arsenic concentrations in the samples were determined by spectrophotometric method using rhodamine. Langmuir and Freundlich isotherms were used to describe the adsorption behavior of As (III) ions by clay soil. The experimental investigation results show that activated clay soil has a high level of adsorption capacity for arsenic ions. Consequently, it is concluded that the clay soil can be successfully used for the removal of arsenic ions from aqueous solutions with heavy metals.