the problem of environmental pollution is of everybody's concern. pollution of zarjoub river in northern iran is most often cause by the uncontrolled disposal of sewage and other wastes resulting from domestic uses of water, industrial wastes containing a variety of pollutants, agricultural affluent from animal husbandry, drainage of irrigation water and urban run-off. a study was carried out t...

In last few decades, development of industrial, agricultural, port and tourism activities and increase in human settlements in coastal zones have generated problems in some local area like Ensenada de La Paz (Méndez ., 1998; Shumilin ., 2001) because they are receiving all types of wastes, which alter the natural balance of ecosystems and contribute to the degradation of the environment (Villan...

Biotransformation of p-coumaric acid by Paecilomyces variotii resulted in the accumulation of a metabolite which was identified as p-hydroxybenzoic acid. We studied the possibility of enhancing this metabolite by various parameters such as varying the concentration of substrate, addition of different nitrogen sources and carbon sources at varying concentration and use of different agricultural ...

Biosorption on lignocellulosic wastes and by-products has been identified as a proper alternative to the existing technologies applied for toxic metal ion and dye removal from wastewater streams. This paper deals with utilization of typical low cost wastes and by-products produced in different food agricultural and agro-industries as biosorbent and reviews the current state of studies on a wide...