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  2. Cape Town water crisis - Wikipedia

    en.wikipedia.org/wiki/Cape_Town_water_crisis

    Level 7 water restrictions, "Day Zero", would be declared when the water level of the major dams supplying the City reached 13.5 percent. Municipal water supplies would largely be switched off, and residents would have to rely on 149 water collection points around the City to collect a daily ration of 25 litres of water per person.

  3. Zero liquid discharge - Wikipedia

    en.wikipedia.org/wiki/Zero_Liquid_Discharge

    Zero Liquid Discharge (ZLD) is a classification of water treatment processes intended to reduce wastewater efficiently and produce clean water that is suitable for reuse (e.g., irrigation). ZLD systems employ wastewater treatment technologies and desalination to purify and recycle virtually all wastewater received. [1] [2]

  4. 2019 Chennai water crisis - Wikipedia

    en.wikipedia.org/wiki/2019_Chennai_water_crisis

    The 2019 Chennai water crisis was a water crisis occurring in India, most notably in the coastal city of Chennai in Tamil Nadu. [1] On 19 June 2019, Chennai city officials declared that "Day Zero", or the day when almost no water is left, had been reached, as all the four main reservoirs supplying water to the city had run dry.

  5. Zero waste - Wikipedia

    en.wikipedia.org/wiki/Zero_waste

    Zero waste provides guidelines for continually working towards eliminating waste. [2] According to the Zero Waste International Alliance (ZWIA), zero waste is the complete recovery of a product's resources "with no discharges to land, water, or air that threaten the environment or human health." [4]

  6. Xeriscaping - Wikipedia

    en.wikipedia.org/wiki/Xeriscaping

    When used seriously, zero-scaping usually refers to a different type of low-water landscaping that uses very few plants or none at all. [ 9 ] [ 10 ] Because o is the most common connecting vowel in Greco-Roman vocabulary, xeriscaping is sometimes misspelled as xeroscaping .

  7. Culligan - Wikipedia

    en.wikipedia.org/wiki/Culligan

    Culligan International is a United States based global water treatment company with a network of dealers and direct operations in 90 countries with 1,000 dealers; over 600 in North America alone, and more than 14,000 employees.