background: iran is an arid country and has serious limitations in terms of water recourses. in arid and semi-arid regions this problem is more severe. industry is one of the primary water consumers in the country and appropriate determination of industry water demand is on the most important priorities that should be considered to save water consumption as well as determining the industry wate...

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...

activated sludge or extended aeration treatment involves a continous system where aerobic biological growths are mixed with waste water and then separated in a gravity clarifier. therefore, waste treatment system such as the activated sludge system depend on the activities of communities of living organism. in this study, an attempt was made on the indentification of the bacterial population in...

abstract background and purpose: according to the reported problems in area of the inappropriateness of water quality which used for washing and staining of car apparatuses in a car factory, this research was carried out for identification of physical, chemical, and microbiological characteristics of the consumed water in babol car factory, iran. materials and methods: physical and chemical par...

for about a decade the virtual water trade has been highlighted as a means of promoting water efficiency and helping to solve regional restrictions of water resources in order to provide water and food security. although these tools are not just for certain areas of the world with a specific climate, they are more important for countries which are faced with water resources restriction and cris...

during past decades, increased wastewater production by human activities intensified the problem of wastewater usewithout causing undesirable impacts on the environment and human life. however, practice of wastewater use inirrigation crops and green spaces needs careful control because of the potential presence of unwanted constituents such asheavy metals and organic contaminants. this research...

various industrial processes with a huge variety of products, materials and compounds create different kinds of pollution for human beings, so that the identification of environmental pollutants resulting from industrial units’ activities, especially in water resources seems necessary. the aim of this paper is to estimate the role of industrial units in contaminating water resources, through us...