Water Pollution Essay Example | Topics and Well Written Essays - 1750 words

Water defilement - Essay ExampleOxygen levels required to decompose this waste is called biological oxygen demand .a banging amount of biological oxygen demand is required to decompose industrial wastes and because of their profit maximization indigence the opt dispose in body of water to reduce cost of treatment. The wastes when directed to water bodies always curb catastrophic effects on marine and human life.The second type of pollutant is excessive nutrition. This is common in agricultural where agricultural runoffs and non biodegradable detergents contaminate water. This facilitates growth of phytoplankton. The autophication passage results in large dissolved oxygen from photosynthesis during the day and over utilization of oxygen for respiratory purposes during the night. This causes deficiency of oxygen in water prima(p) to massive death of aquatic animals.Suspended solids ar also another type of contamination in this 21st century. This is prevalent where land has been disturbed by plowing or excavation. Ground up woodland fibers can also be classified in this category of suspended solid pollution.There are over 65000 industrial chemicals in use in the modern world .3-5 new chemical s enter the market every day .the major classes of chemicals which are harmful and find their way done to water sources are ammonia, petroleum hydrocarbons, pesticides, and detergents.(Heath A.G,1995)Another type of water pollution is microbiological pollution. This is natural form of pollution caused by microorganisms. They include e bacteria, viruses and protozoa. They are the major cause of illness in human organism and animals. (Canter w. L and knot 1985)Human activities have negative impact and contribute greatly in water pollution. Industrial waste form the largest percentage of water pollution .nuclear waste produced from industrial, medical and scientific process that use radioactive materials can be very harmful when they find they way to water