Use of recycled water

ACCORDING to experts, crisis of drinking water can be mitigated through recycling of water. Alongside this, proper treatment of domestic and industrial waste water should be ensured before discharging the same into water bodies to keep surface water clean. They have suggested that the authorities concerned should take immediate measures to stop misuse of water and protect natural resources for sustainable supply. On an average, 160 litres of water is used by each person a day. At least 2,000 litres of water is required to produce each kilogram of rice while plants absorb millions of litres of water every day. People are paying a very small fraction of the cost of water as actual cost of treatment and supply is much higher.

Source :  http://nation.ittefaq.com/issues/2010/02/24/news0597.htm

So, water should be carefully used as without this natural resource existence of life is impossible. Though total resources of water of the Earth are inexhaustible, scarcity of fresh water exists in many parts of the world including Bangladesh. Dhaka city with roughly over 12 million population needs at least 200 crore litres of fresh water per day. Moreover, a huge quantity of water is used in industries, mills, factories. Shortage of water in different areas is becoming a serious problem though Bangladesh is termed as rich in fresh water resources.

The shortage is not for growing demand of water for irrigation as well as domestic or industrial uses, but for pollution and fall of ground water tables, destruction of fresh water reservoirs and withdrawal of water from upstream of the country's river system. Due to disturbance of natural flows, most of the rivers are drying up during the lean season and salinity is increasing at downstream. In view of the overall situation, experts have come up with the suggestion of recycling of water to minimise the crisis.