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  2. Salt water chlorination - Wikipedia

    en.wikipedia.org/wiki/Salt_water_chlorination

    Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

  3. Oliver Salt Company - Wikipedia

    en.wikipedia.org/wiki/Oliver_Salt_Company

    Oliver Salt Company was a saltworks located on the San Francisco Bay adjacent to Hayward, California, which produced salt by evaporation from the San Francisco Bay Area. [1] The remains of their facilities are within Eden Landing Ecological Reserve .

  4. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Over time, calcium from municipal water tends to accumulate, developing salt deposits in the swimming pool walls and equipment (filters, pumps), reducing their effectiveness. Therefore, it is advised to either completely drain the pool, and refill it with fresh water, or recycle the existing pool water, using reverse osmosis. The advantage of ...

  5. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    P&IDs are originally drawn up at the design stage from a combination of process flow sheet data, the mechanical process equipment design, and the instrumentation engineering design. During the design stage, the diagram also provides the basis for the development of system control schemes, allowing for further safety and operational ...

  6. Osmotic power - Wikipedia

    en.wikipedia.org/wiki/Osmotic_power

    Osmotic pressure is the "chemical potential of concentrated and dilute solutions of salt". [10] When looking at relations between high osmotic pressure and low, solutions with higher concentrations of salt have higher pressure. Differing salinity gradient power generations exist but one of the most commonly discussed is pressure-retarded ...

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