how to turn waste water to useful water?

Answer 1

Water your plants.

Answer 2

NEWater is the product from a multiple barrier water reclamation process. The first barrier is the conventional wastewater treatment process whereby the used water is treated to globally recognised standards in the Water Reclamation Plants.

The second barrier is the first stage of the NEWater production process known as Microfiltration (MF). In this process, the treated used water is passed through membranes to filter out and retained on the membrane surface suspended solids, colloidal particles, disease-causing bacteria, some viruses and protozoan cysts. The filtered water that goes through the membrane contains only dissolved salts and organic molecules. The third barrier or the second stage of the NEWater production process is known as reverse osmosis (RO). In RO, a semi-permeable membrane is used. The semi-permeable membrane has very small pores which only allow very small molecules like water molecules to pass through. Consequently, undesirable contaminants such as bacteria, viruses, heavy metals, nitrate, chloride, sulphate, disinfection by-products, aromatic hydrocarbons, pesticides etc, cannot pass through the membrane. Hence, NEWater is RO water and is free from viruses and bacteria and contains very low levels of salts and organic matters.

At this stage, the water is already of a high grade water quality. The fourth barrier or third stage of the NEWater production process really acts as a further safety back-up to the RO. In this stage, ultraviolet or UV disinfection is used to ensure that all organisms are inactivated and the purity of the product water guaranteed. With the addition of some alkaline chemicals to restore the acid-alkali or pH balance, the NEWater is now ready to be piped off to its wide range of applications.

Answer 3

the waste water from you sink and shower can be used to flush the toilet, with plumbing run from the sink drains to a holding tank to be used for the toilet water. Look at back issues of Mother Earth, it is an ecology magazine

Answer 4

by constructing water treatment plants properly treated waste water can be use in irrigating farms re processing plants uses re cycled water and it is even used as drinking water but only if is thoroughly treated and and have passed different measures in quality assurance that it is safe for drinking

Answer 5

How much needs to be converted?
If it's a survival situation, I carry a purifying straw.
It does a nice job of filtering out the nasty's.
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For larger quantities, a portable water purification unit would do the job.

Answer 6

water plants & garden

Answer 7

filter