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digester |
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digester [də′jes·tər] (chemical engineering) A vessel used to produce cellulose pulp from wood chips by cooking under pressure. (civil engineering) A sludge-digestion tank containing a system of hot water or steam pipes for heating the sludge. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Stubbings says unlike most Europe-made mesophilic digesters, which operate roughly in the range of human body temperature, their thermophilic version operates at a higher temperature (50 to 55 C) which kills more pathogens and produces more gas. Small-scale digesters for household use are commonly made of concrete, bricks, metal, fiberglass, or plastic. Two other on-farm carbon sequestering practices-installation of methane digesters on livestock farms and planting cropland to trees-are open for enrollment nationwide. |
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