The methods used include physical processes such as filtration, sedimentation, and distillation biological processes such as slow sand filters or biologically active carbon chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.Īccording to a 2007 World Health Organization (WHO) report, 1.1 billion people lack access to an improved drinking water supply 88% of the 4 billion annual cases of diarrheal disease are attributed to unsafe water and inadequate sanitation and hygiene, while 1.8 million people die from diarrheal disease each year. Most water is disinfected for human consumption ( drinking water), but water purification may also be designed for a variety of other purposes, including fulfilling the requirements of medical, pharmacological, chemical and industrial applications. The goal is to produce water fit for a specific purpose. Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from water. For other uses, see Purification of water. This article is about large scale, municipal water purification. Reducing deaths from waterborne diseases is a major public health goal in developing countries. Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, and storing it in safe containers could save a huge number of lives each year. The WHO estimates that 94% of these diarrheal disease cases are preventable through modifications to the environment, including access to safe water. Chemical and microbiological analysis, while expensive, are the only way to obtain the information necessary for deciding on the appropriate method of purification.Īccording to a 2007 World Health Organization (WHO) report, 1.1 billion people lack access to an improved drinking water supply 88% of the 4 billion annual cases of diarrheal disease are attributed to unsafe water and inadequate sanitation and hygiene, while 1.8 million people die from diarrheal disease each year. Even natural spring water – considered safe for all practical purposes in the 19th century – must now be tested before determining what kind of treatment, if any, is needed. Simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all the possible contaminants that may be present in water from an unknown source. Visual inspection cannot determine if water is of appropriate quality. These standards usually include minimum and maximum concentrations of contaminants, depending on the intended purpose of water use. The standards for drinking water quality are typically set by governments or by international standards. Purifying water may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, fungi, as well as reducing the concentration of a range of dissolved and particulate matter. The methods used include physical processes such as filtration, sedimentation, and distillation biological processes such as slow sand filters or biologically active carbon chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. Most water is disinfected for human consumption (drinking water), but water purification may also be designed for a variety of other purposes, including fulfilling the requirements of medical, pharmacological, chemical and industrial applications. Drawing shows layout plan with patterned floor design, sectional elevation with material specification detail.Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from water. Outdoor Water Body Fountain Cad Design DetailĪutocad drawing of Outdoor water body suitable for Townships or Commercial areas has been designed in Granite stone and mosaic floor tiles.
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