MICROBES
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작성자 최고관리자 작성일21-07-29 13:37 조회6,202회 댓글0건관련링크
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KNOW ABOUT REVERSE OSMOSIS PRINCIPLES
WHY REVERSE OSMOSIS DRINKING WATER ?
There are many, many water borne contaminants, viruses, bacteria and amoeba that still make it through today's purportedly high-tech water source processing, these include:
MICROBES:
Coliform bacteria are common in the environment and are generally not harmful. However, the presence of these bacteria in drinking water is usually a result of a problem with the treatment system or the pipes which distribute water, and indicates that the water may be contaminated with germs that can cause disease. Faecal Coliform and E-Coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms.
REVERSE OSMOSIS:
Reverse Osmosis requires external pressure to reverse natural osmotic flow. As pressure is applied to the saline solution, water flows from a more concentrated saline solution through the semipermeable membrane. (See figure 2)
REVERSE OSMOSIS MEMBRANE ELEMENTS:
A reverse osmosis membrane has a thin microporous surface that rejects impurities, but allows water to pass through.
The membrane rejects bacteria, pyrogens, and 85%-995% of inorganic solids. Polyvalent ions are rejected easier than monovalent ions. Organic solids with molecular weight greater than 300 are rejected by the membrane, but dissolved gases pass through.
Reverse osmosis is a percent rejection technology. The purity of the product water depends on the purity of the inlet water. The purity of reverse osmosis product water is much higher than the purity of the feed water. (See figure 3)
MAIN TYPES OF REVERSE OSMOSIS SYSTEMS:
- - Reverse Osmosis for Home and Office use
- - Reverse Osmosis for Commercial Applications
- - Reverse Osmosis for Industrial Applications
- - Reverse Osmosis for Seawater Desalination (Portable Based)
- - Reverse Osmosis for Seawater Desalination (Marine Based)
- - Reverse Osmosis for Seawater Desalination (Land Based)
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