Reducing the environmental impact of offshore H2S scavenging wastewater via hydrothermal oxidation

Nikolaos Montesantos,Lars M. Skjolding,Anders Baun,Jens Muff,Marco Maschietti

Water Research（2022）

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摘要

•Hydrothermal oxidation (HTO) markedly reduces ecotoxicity of spent H2S scavengers.•HTO executed at 199, 279 and 350 °C, with reaction times from 5 to 360 min.•Ecotoxicity towards bacteria after HTO reduced more than 90% at all conditions.•Ecotoxicity towards algae after HTO reduced from 48% to 82%.•HTO reactor optimization requires both chemical and ecotoxicity analysis.

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关键词

Wet oxidation,H2S scavengers,Spent scavengers,Offshore oil and gas,Marine toxicity,Environmental impact factor

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