Iranian Researcher Creates Grey Water Treatment System

Tuesday, June 26, 2018 - 12:58

An Iranian researcher, Razieh Molaei, from Hamadan province, has succeeded to design and make a new water purification and creating gray water system without using electricity.

According to an ISCA report, water is a finite precious resource which is essential for multidimensional development. Low rainfall, population growth, increased urban, agricultural and industrial water demand, in combination with unbalanced water demand and availability, accentuate the water issue.

The researcher, Razieh Molaei created a new system which is not using any electric current in purifying gray water, so it can be applied in residential and non-residential buildings.

As she explained grey water is gently used water from your bathroom sinks, showers, tubs, and washing machines. It is not water that has come into contact with feces, either from the toilet or from washing diapers.

While grey water may look “dirty,” it is a safe and even beneficial source of irrigation water in a yard. Keep in mind that if grey water is released into rivers, lakes, or estuaries, its nutrients become pollutants, but to plants, they are valuable fertilizer.

The researcher also noted, in order to use this system at home, the easiest way is to pipe grey water directly outside and use it to water ornamental plants or fruit trees, “ this system will purify the grey water in two steps, first in sedimentation processes and then using water filters.”

In most residential situations it is much simpler and more economical to utilize grey water outside, and not create a system that treats the water for indoor use. The exceptions are in houses that have high water use and minimal outdoor irrigation, and for larger buildings like apartments.

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