water purification project in details
answer should atleast one full page
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Answer:
Water purification means the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption (drinking water), but water purification may also be carried out for a variety of other purposes, including medical, pharmacological, chemical, and industrial applications. The history of water purification includes a wide variety of methods. 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.
Water purification may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, and fungi as well as reduce the concentration of a range of dissolved and particulate matter.
The standards for drinking water quality are typically set by governments or by international standards. These standards usually include minimum and maximum concentrations of contaminants, depending on the intended use of the water.
Visual inspection which cannot determine if water meets thierquality standards. Simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all possible contaminants that may be present in water from an unknown source. 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. Chemical and microbiological analysis, while expensive, are the only way to obtain the information necessary for deciding on the appropriate method of purification.
Answer:
If you drink water that hasn’t been through a purification process – “raw water” – you risk contracting waterborne diseases stemming from bacteria such as Escherichia coli (E. coli) and parasites such as giardia. That’s why water purification is essential for everyone, and it makes water purification project ideas a particularly good choice for a school science fair or presentation. But before leaping into a project, it’s best to learn the basics of why water needs to be purified, the different ways in which it can be done and what your options are for a "method of purification of water" project.
Why Should We Purify Water Before Drinking it?
In short, you need to purify water so you can be sure it’s safe to drink. The main risks in water are parasites, bacteria, viruses and chemical pollutants, naturally occurring yet toxic metals such as lead, or manmade chemicals. Untreated water will probably taste pretty gross, too.
The two most important parasites that are found in water come from feces. That’s right – if you drink water from natural sources without treating it, you’ll be drinking a bit of poop too. This is not only gross; it’s the main source of risk when it comes to untreated water.
Giardia is one example, and it’s found in basically every body of water in the U.S., coming from human and animal feces. If you get infected with giardia, i