专利检索 ap:("THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY") AND inv:"Ho Kwong CHUI" 第 1 页

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发明申请
INTERNAL SULFUR CYCLING SANI (ISC-SANI) PROCESS FOR BIOLOGICAL WASTEWATER TREATMENT 审中-公开

公开(公告)号：US20170369350A1

公开(公告)日：2017-12-28

申请号：US15543107

申请日：2016-01-12

申请人： THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Guanghao CHEN , Feng JIANG , Ho Kwong CHUI

IPC分类号： C02F3/34 , C02F3/00 , C02F3/28 , C02F3/30 , C02F3/12 , C02F101/10

CPC分类号： C02F3/345 , C02F3/006 , C02F3/06 , C02F3/1263 , C02F3/1268 , C02F3/282 , C02F3/2846 , C02F3/301 , C02F3/302 , C02F2101/101 , C02F2209/001 , C02F2209/04 , Y02W10/15

摘要： A method of removing organic carbon in biological wastewater treatment includes the steps of: (a) oxidizing organic carbon to carbon dioxide with elemental sulfur as an electron carrier, and reducing the elemental sulfur to sulfide; (b) oxidizing the sulfide to elemental sulfur by recycled nitrate through controlling one or more of a recycling ratio to maintain an oxidation reduction potential (ORP) within the range of −360 my to −420 mv, using an auto ORP controller; (c) recycling the elemental sulfur formed during oxidation of the sulfide back to the oxidation of the organic carbon; and (d) oxidizing ammonium to nitrate then partially recycled back for sulfide oxidation.