More news you can use. New research hints that a favorite ingredient in Mexican, Southeast Asian and other spicy cuisine may be an inexpensive new way of purifying drinking water. Conventional methods for removing heavy metals from water such as treatment with activated carbon (used in the filters in home water purification pitchers) or more advanced technology like ion-exchange resins are very effective. However, they can be too expensive for use in developing countries, especially in rural areas. The need for lower-cost, sustainable alternatives has fostered research on biosorbents. These natural materials, which range from microbes to plants, latch on to heavy metals in ways that include both absorption and adsorption. Cilantro, that favorite salsa ingredient, purifies drinking water (12 Sept 2013) sciencedaily/releases/2013/09/130912104814.htm
Posted on: Wed, 19 Mar 2014 09:19:01 +0000
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