Waste water produced in residences can be divided into two types. Black water, which has fecal secretions from toilets or nutrients from the kitchen, and graywater, which is relatively clean waste water. Graywater originates mainly from showers, sinks (excluding the kitchen sink) and washing machines. The importance of these waters is that they can be treated and recycled for home use, thereby saving costs, reducing environmental damage, and saving one of our important resources.

Each home can have its own water recycling system. For example, soap-filled bath water can be used as water to flush a toilet. Typically, a person flushes a home toilet ten times a day, using ten liters of water. Why not reuse shower water? Additionally, graywater can be used for irrigation of home plants. Graywater, after filtration and purification, can be used as water for the garden.

To install a gray water system, it is necessary to separate the residence piping- gray piping separate from the black piping (toilet and kitchens). A storage tank is required for the waste water with active bacteria added in in the form of powder. The storage tanks collect the water. Two filters are included in the tank, one is at the entrance opening to the container, the other at the exit. Inside the container is the special bacterium that breaks down the fats in the water, especially those found in detergents. The salts found in our laundry powders are good fertilizers, so profitable for use.

Once the piping is completely separate, maintenance is pretty easy. Once every few months, the filters must be cleaned and active bacterium added, from the grayish green powder that is poured into the water storage tank.

In common use buildings, shopping malls and shopping centers, there is a problem installing a gray water system for fears of health infection, but at apartments or private home, there is no danger to your health. On the contrary, it is a welcome project that helps our environment, reduces water usage and costs.

It is important to note that gray water purification systems are relatively new idea and thus their environmental impact has not yet been explored in depth. However, currently, it is clear that they serve a good purpose and help our environment.

This article was edited by Tammy Kaplan Zabari.




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