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  2. Sustainability standards and certification - Wikipedia

    en.wikipedia.org/wiki/Sustainability_standards...

    Sustainability standards can be categorized as either voluntary consensus standards or private standards. International Organization for Standardization (ISO) is an example of an standards organization who develop international standards following a voluntary consensus process for sustainability under Technical Committee 207, Environmental management and Technical Committee 268, Sustainable ...

  3. Industrial wastewater treatment - Wikipedia

    en.wikipedia.org/wiki/Industrial_wastewater...

    Brine treatment is commonly encountered when treating cooling tower blowdown, produced water from steam-assisted gravity drainage (SAGD), produced water from natural gas extraction such as coal seam gas, frac flowback water, acid mine or acid rock drainage, reverse osmosis reject, chlor-alkali wastewater, pulp and paper mill effluent, and waste ...

  4. Solid waste policy of the United States - Wikipedia

    en.wikipedia.org/wiki/Solid_waste_policy_of_the...

    Solid Waste Tree, Based on Resource Conservation and Recovery Act, United States Environmental Protection Agency. Solid waste means any garbage or refuse, sludge from a wastewater treatment plant, water supply treatment plant, or an air pollution control facility and other discarded material, including solid, liquid, semi-solid, or contained gaseous material resulting from industrial ...

  5. Waste treatment - Wikipedia

    en.wikipedia.org/wiki/Waste_treatment

    Waste treatment refers to the activities required to ensure that waste has the least practicable impact on the environment. In many countries various forms of waste ...

  6. Tetrasodium EDTA - Wikipedia

    en.wikipedia.org/wiki/Tetrasodium_EDTA

    Tetrasodium EDTA is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base). It is a white solid that is highly soluble in water. Commercial samples are often hydrated, e.g. Na 4 EDTA. 4H 2 O. The properties of solutions produced from the anhydrous ...

  7. When to Use Salted vs. Unsalted Butter, According to Our ...

    www.aol.com/salted-vs-unsalted-butter-according...

    However, the amount of salt in salted butter isn’t standardized, so it varies across brands and can even vary from batch to batch within the same brand. Another key difference is shelf life.

  8. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    The back flush or sludge that is produced is, however, a low-level radioactive waste. Fluoride Removal: Although fluoride is added to water in many areas, some areas of the world have excessive levels of natural fluoride in the source water. Excessive levels can be toxic or cause

  9. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!