Soil as Heterogeneous Fenton Catalyst for the Abatement of Organic Pollutants

Abstract

Fenton oxidation process is an effectual technology for the abatement of organic compounds seen in wastewater. The homogeneous Fenton process is highly pH-dependent, sludge production, interference by the formation of complex iron ions etc. To overcome these disadvantages, environmentally friendly and cheaper heterogeneous solid catalysts which are highly reactive and stable were used as an iron source. The usage of a heterogeneous catalyst can decrease the rate of sludge production and work in an extensive range of pH. Among the different heterogeneous catalyst in Fenton oxidation, soil can be used as an efficient Fenton catalyst for the degradation of various organic pollutants. This chapter provides an inclusive review focusing on soil as a heterogeneous catalyst for Fenton processes. Three major soil classifications, such as clay, volcanic, and laterite, used for degradation of pollutants are explained. Further, the chapter also reviews the various research conducted with modified soil minerals.KeywordsHeterogeneous Fenton ProcessSoilClayVolcanic soilLaterite