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  2. Airgas - Wikipedia

    en.wikipedia.org/wiki/Airgas

    In February 2010, Air Products initiated a public tender offer for Airgas. [5] The offer was extended, and the price increased, throughout the subsequent year. [6] [7] [8] Air Products abandoned the effort on February 15, 2011, [9] [10] after a decision by the Delaware Chancery Court that upheld Airgas's extensive use of a "poison pill" defense.

  3. Atmospheric water generator - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_water_generator

    State-of-the-art AWG for home use. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point, exposing the air to desiccants, using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.

  4. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Dissolved air flotation (Degasification) is the process of removing dissolved gases from a solution. Henry's law states that the amount of dissolved gas in a liquid is proportionate to the partial pressure of the gas. Degasification is a low-cost method of removing carbon dioxide gas from waste water that raises the pH of the water by removing ...

  5. Clean fuel - Wikipedia

    en.wikipedia.org/wiki/Clean_fuel

    Clean fuel there is defined by the emission rate targets and specific fuel recommendations (i.e. against unprocessed coal and kerosene) included in the normative guidance WHO guidelines for indoor air quality. Clean fuel is one component of sustainable energy.

  6. Liquefied gas - Wikipedia

    en.wikipedia.org/wiki/Liquefied_gas

    Liquefied gas (sometimes referred to as liquid gas) is a gas that has been turned into a liquid by cooling or compressing it. Examples of liquefied gases include liquid air , liquefied natural gas , and liquefied petroleum gas .

  7. Underground mine ventilation - Wikipedia

    en.wikipedia.org/wiki/Underground_mine_ventilation

    By installing variable speed control air quantity can be optimized hence the power. [5] At every place in the mine where persons are required to work or pass, the air should not contain less than 19% of oxygen or more than 0.5% of carbon dioxide or any noxious gas in quantity likely to affect the health of any person.

  8. Water supply and sanitation in China - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    According to the Ministry of Construction, more than 50 wastewater treatment plants in more than 30 cities operated at only 30 percent of their capacity or did not even come into operation. [45] Consequently, the impact of the investment program on the water quality in rivers and coastal waters has been limited.

  9. Fiji Water - Wikipedia

    en.wikipedia.org/wiki/Fiji_Water

    Fiji Water bottles water from Fiji and ships it overseas. The water is sourced from Yaqara, on the north shore of Viti Levu, the largest island of Fiji.. In 2007–2008, disputes with the Fiji government over export duties led to legal cases, impounded shipments and a self-imposed industry-wide shutdown of Fijian water bottlers.