Abstract
To begin with, lack of water, declining quality of it and environmental restrictions caused to increase requirements of reusing wastewaters extremely. By industrialization and reduction of pressure on water sources, using water in industry has adequate potential to reduce costs in saving water and treatment of wastewater. Wastewater can be recycled direct and indirect based on the type and quality. There are different ways to reuse water according to progressed technology these days. Furthermore, using intelligently and reusing water with ultimate use of missed water in environment present a growing challenge in industrial management. According to availability restrictions of fresh water sources and their protection requirement, implementation of water recycling plans in water sustainable management strategy is crucial. By progressing of industrializing in developed countries, water consumption in industry has been increased simultaneous by five principal factors. One of the methods of limiting water consumption is reuse wastewater. Reduction of water consumption by industrializing can diminish water removal from local resources. Therefore, enhancement of water availability and improvement of social relations, increasing of input water’s efficiency, lowing off wastewater discharge and their pollutant loads, decrease expenses of thermal energy and process of principal costs are the most crucial factors. Finally, reusing of wastewaters has adequate potential for decreasing costs of any project as well as wastewater treatment.
Highlights
To begin with, there are substitutions for oil or other natural sources but nothing could be a substitution for water
It could be tended to economic and environmental benefits. It can reduce amount of energy using, decrease deviation of stream in rivers and water lanes and decrease pollutions of sewages discharge, While water recycle is a profitable and stable approach in long period of time, wastewater treatment for the reuse and installation and utilization of this type of systems initially can be more costly than other options of saving water
These experiences indicate possible of water recycle in large scale and its important role in stable management of universal water sources
Summary
There are substitutions for oil or other natural sources but nothing could be a substitution for water. Developing countries have crucial plans to manage water sources such as: Softening sea water, modernization of agriculture and changing cultivate patterns, treating consumed water and recycle wastewater, rehabilitation of water transmission network (Lazarova, 2001). All sorts of wastewaters possess potential to hurt humans’ health and contaminate environment. They could be converted into a valuable source by proper management and applying in appropriate process (Abdel-Shafy et al, 2013). Nowadays, using of recycled water as a source to supply more water is being encouraged. These days, only few percentage of wastewater around the world are treated and used.
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