Heavy metal exist naturally in environment, but due to human and some natural activities
they have been entered to water bodies, air and soil and have become one of the major …

There are number of water purification techniques but the adsorption is one of the most
simplest, effective and economical method for wastewater purification. In this article a large …

Several industries release varying concentration of dye-laden effluent with substantial
negative consequences for any receiving environmental compartment. The control of water …

This comprehensive review explores the potential and versatility of biogenic materials as
sustainable and environmentally benign alternatives to conventional adsorbents for the …

Arsenic, one of the elements having most terrible impact on the human being, is threatening
the world continuously. It exists in the combined form in rocks under earth which on …

The removal of contaminants from wastewaters is a matter of great interest in the field of
water pollution. Amongst the numerous techniques of contaminant removal, adsorption …

Coffee waste is often viewed as a problem, but it can be converted into value-added
products if managed with clean technologies and long-term waste management strategies …

Coffee is the most common beverage and there are two main different methods to process
coffee cherries. Coffee husk is the main by-product of coffee processing by dry method and …

Spent coffee grounds are composed of lipid, carbohydrates, carbonaceous, and nitrogen
containing compounds among others. Using n-hexane and n-hexane/isopropanol mixture …

Contaminant removal from water involves various technologies among which adsorption is
considered to be simple, effective, economical, and sustainable. In recent years …