Greenhouse gas emissions from a sewage contact oxidation emergency treatment plant after destruction by an earthquake and tsunami.

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ID: 15423
2019
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Abstract
Emissions of greenhouse gases (GHGs) from a full-scale contact oxidation emergency sewage treatment plant (STP) in Japan that was damaged by an earthquake and a tsunami were measured. The open chamber (OC) and closed chamber (CC) methods were used to sample the gases emitted in the aeration tank and the settler, respectively. The dissolved gases were measured using the headspace method, and the major emissions sources in wastewater treatment were identified. The results indicated that the GHG emissions from the wastewater were 58.6 g-CO/m (equivalent per cubic meter of wastewater). The CH emissions showed a strong negative correlation with the dissolved oxygen (DO) content. More than 98% of the GHGs were produced and stripped by the aeration tank. The CO, CH and NO emissions accounted for 73.0% (21,781 mL/m), 17.1% (669 mL/m) and 9.9% (10.9 mL/m), respectively, of all GHG emissions. Approximately 1.06% of the incoming chemical oxygen demand (COD) was emitted as CH, and 0.147% of the removed nitrogen was emitted as NO.
Reference Key
qi2019greenhousethe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Qi, Wei-Kang;Song, Ying;Peng, Yongzhen;Li, Yu-You;
Journal The Science of the total environment
Year 2019
DOI
S0048-9697(19)32566-5
URL
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