Sulphur cycle-associated denitrifying enhanced biological phosphorus removal (SD-EBPR) utilizing sulphur compounds as electron carriers for biological nutrient removal of wastewater treatment
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United States of America Patent
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Mar 20, 2018
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Nov 13, 2014
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Nov 13, 2013
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Sewage treatment is performed by using Sulphur to facilitate electron flow. A first cycle uses a sulphur composition having sulphur and/or sulphur compounds to transfer electrons from organic carbon to oxygen, nitrate and nitrite, and to convert phosphorus-containing compounds to solid material, which is retained in sewage sludge. The sulphur is further used to perform denitrification of nitrogen compounds. A further cycle uses oxygen to oxidize any ammonia present to nitrate and/or nitrite.
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