Increased Water Treatment Costs . The processes in a water treatment plant are shown in the illustration. Pollution has many other sources and costs. This kind of pollution leads to health-related and environmental issues. Economically, it makes good sense to find remedies for environmental pollution. According to the United Nations, more than 80% of the worldwide wastewater goes back in … Prior to industrialization, the pollution of rivers and streams was not as significant a problem. Secondary treatment removes more than 90 percent of suspended solids. Humans are affected by pollution and can contract diseases such as hepatitis through faecal matter in water sources. In today's world, sewage water pollution is one of the major problems faced by most cities. Water is an essential resource for all life on Earth. First, pollution increases water treatment prices. Additionally, avoid using pesticides and herbicides in order to prevent groundwater contamination. It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. 7.4 Water Treatment Resolution of the global water pollution crisis requires multiple approaches to improve the quality of our fresh water and move towards sustainability. Dilution. In many developed cities, waste or sewage treatment is very efficient and designed to minimize pollution of water bodies. Water Pollution Water pollution is any chemical, biological, or physical change in water quality that has a harmful effect on living organism or makes water unsuitable for desired uses. Surface Water Pollution Causes . Poor drinking water treatment and unfit water can always cause an outbreak of infectious diseases such as cholera etc. For example, the Great Lakes in Minnesota suffer from enormous algae blooms. Bodies of water can become polluted in a number of ways. If a water source becomes contaminated due to pollution, it can lead to health issues in humans, such as cancer or cardiovascular conditions. Related Topics: Inadequate sewage collection and treatment are sources of water pollution. To reduce water pollution, use natural cleaners like vinegar and baking soda in place of toxic chemicals like bleach and ammonia. (The next page explains that process) There are also lots of organizations and groups that help educate people about the dangers of water pollution. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water. The external cost of pollution caused by automobiles has been estimated well over $50 billion a year, with some estimates as high as $234 billion. Examples of non-point source pollution … The ecosystem can be critically affected, modified and destructured because of water pollution. Water pollution is controlled by treatment of wastewater. This has increased water treatment costs by almost $4.00 per 1,000 gallons, according to the EPA Source-water protection is the first step in water treatment, with the natural and engineered processes following. This is due to the additional energy costs and chemicals to filter and clean the water. The most deadly form of water pollution, pathogenic microorganisms that cause waterborne diseases, kills almost 2 million people in underdeveloped countries every year. Sewage Water Pollution: A Deadly Threat to Biodiversity. This treatment also involves aerating (stirring up) the wastewater, to put oxygen back in. The methods used for the treatment of wastewater depend upon the characteristics of the particular wastewater ( sewage treatment), contaminants present and final mode of disposal. With proper treatment of water, it is possible to reduce water pollution. 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