Study on the degradation of triethylamine wastewater by catalytic ozone-biological coupled system of Ce-Fe@ZSM-5

Triethylamine (TEA) is an organic amine, due to the development of the pesticide industry, TEA wastewater volumes of yearly increasing, the poor biochemical performance and high toxicity. Therefore, we report a novel ozone catalyst as biological treatment technology by compounding Ce-Fe@ZSM-5 molecular sieve and domesticated activated sludge to construct a catalytic ozone-biodegradation coupling system. The low efficiency of ozone utilization was addressed by optimizing the stability and activity strength of the catalyst with a large specific surface area. The degradant rate of TEA reached 89.5 % versus 82 % of biological treatment and the elimination rate of TOC reached 71.5 %, which is 7.5 % increase the biological treatment of TEA. In order to efficiently degrade TEA and other organic amine compounds, the degradation pathway and mechanism of TEA were investigated. This research offered a theoretical foundation and prospective application for degradation of TEA.