The World's Freshwater Water Supply

Local public water sources have recently been very polluted. Towns, cities and provinces deal with bacterial, parasite and fecal levels in drinking water and clean water. The cause of these dangerous water factors is in sewage treatment of old houses, medicines, old pipes. "These contaminants can affect your health unconsciously that may affect your health." (Walls-Thumma) Water affects family health and hygiene In addition to affecting the health and welfare of all the family members.

Agriculture uses about 70% of the world's freshwater supply. As the demand for water increases, agricultural water is receiving increasing pressure, competition between cities, farmers and the environment is getting increasingly intense and large-scale excessive drainage of groundwater and agricultural water causes water pollution problems It has increased. New threats include climate change challenges that may change water supply and agricultural water demand. The main purpose of the 20th century water policy was to use more "new" water for human beings. In this traditional paradigm, the best measure is the total volume of water delivered or used. However, the total water use is now a poor indicator of water value and productivity, and is considered to be a truly inefficient index. The new way of thinking suggests that you need to pay more attention to the products and services offered by water, such as water efficiency and productivity

In the world where demand for freshwater is increasing and water resources are limited, water pollution already places further pressure on tight water supply. Water pollution refers to the direct or indirect transfer of substances or energy causing adverse effects such as harm to biological resources, human health hazards, aquatic organism damage, and loss of water quality caused by economic utilization of agriculture It means introduction. Such activities and the decline of facilities. There are many causes of water pollution including: disposal of pipeline including waste and sewage, artificial waterway, agricultural outflow water including chemical substances such as herbicides and pesticides, dumping of sea of ​​rivers and waste, oil and so on Thermal contamination from heavy metal power plants in gas exploration

Approach to water pollution problems to achieve the goal of sustainable development Fatine Ezbakhe *

With current technology, this solution can be solved using various solutions to increase supply; by handling water pollution, water other than fresh water can be converted to fresh water (Woltersdorf , 2018). Most of the physical contamination of water includes organisms, metals, acids, sediments, chemical substances, waste and nutrients. Through some processes, water is treated and purified to limited or nonfluidized freshwater (Tebbutt, 1998). The distillation-water distillation process is only defined by a desalination device, a similar process of thermal evaporation and condensation. It evaporates the substance under the boiling point defined to convert the water from its liquid state to water vapor and then condenses it back into liquid; from the initially concentrated particles and effluent itself (D 'Souza, nd). . The same concept is born with other kinds of contaminated water