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Production of Nitrous Oxide Gas under Sequencing Batch Reactor System

by Cheng-Nan Chang,
Jih-Gaw Lin,
Jin-Yuan Chen,
Fong-Bing Hsu,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

N₂O, like CO₂, H₂O, and CH₆, will causes green house effect. This study utilized synthetic wastewater to closed sequencing batch reactor (SBR) to examine the detail N₂O released mechanisms in each stage of the overall reaction. Manual operated SBR reactor connected with on-line p11, DO and ORP sensors to collect operation parameters. FIM was controlled between 0.11 to 0.44 /Kg-MLSS*d. Since the overall reaction included aerobic and anaerobic stages, ORP was used as one of the monitor and control parameters throughout this study. The higher F/M loading, the higher COD, ammonia removal, nitrification rate (K_N), denitrification rate(K_DN) and N₂O turnover rate can be obtained. Denitrification reaction released five times the amount of N₂O than that from nitrification reaction.

Subject Headings: Water pollution | Wastewater management | Denitrification | Air pollution | Water treatment | Parameters (statistics) | Waste treatment

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