ABSTRACT
The leather tanning industry has been a common and one of the most important industries in Mediterranean countries. This chapter deals with the different treatment techniques utilized for treating effluents from leather industries. It discusses various researchers have intensively treated such effluents with different treatment techniques. The chapter presents a detailed study about the leather production process and use of various chemicals. Biological processes are widely employed by researchers for treating industrial effluents to reduce organic content. The economic advantage of biological treatment over chemical oxidation plays a vital role in selecting such treatment method. Huge foaming problems on water surfaces were associated with the effluents of leather tanneries. The high toxic level with low biodegradability of leather plant wastewater poses a serious technological and environmental challenge. The chapter provides a better insight of various treatment techniques adopted by researchers for treating effluents from different leather industries.
