硫酸盐
化学
废水
污水处理
缺氧水域
生物反应器
化学需氧量
碳纤维
凯氏定氮法
反硝化
氨
硝化作用
环境化学
制浆造纸工业
燃烧
氮气
胺气处理
废物管理
环境工程
环境科学
有机化学
材料科学
复合材料
工程类
复合数
作者
Jorge Santo Domingo,Matthew J. Palmarin,Stephanie Young
标识
DOI:10.1016/j.ces.2024.119766
摘要
Amine-based post-combustion capture is a technologically viable process for sequestering carbon emissions from coal-fired power plants. However, the resulting wastewater generally contains high concentrations of organic carbon, sulfates, amines, and amine derivatives. This research set forth to determine the efficacy of a biological treatment approach consisting of nitrification, denitrification, and sulfate reduction to decrease these contaminants. Two systems were considered: the first implemented the aerobic, anoxic, and anaerobic processes into three separate bioreactors; the second implemented each of these processes into a single bioreactor. The average removal efficiencies of chemical oxygen demand, total nitrogen, total Kjeldahl nitrogen, ammonia, and sulfate were 97 %, 79 %, 85 %, >99 %, and 16 % for the three-stage system, and 95 %, 88 %, 88 %, >99 %, and 10 % for the single-stage system. Extending the anaerobic phase by 12 h increased the sulfate removal to 25 % and 39 %, respectively. These results demonstrate the efficacy of biological treatment for carbon capture wastewater.
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