Key Laboratory of Groundwater Circulation and Evolution, China University of Geosciences (Beijing), Ministry of Education, No. 29 Xueyuan Road, Haidian District, Beijing 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), No. 29 Xueyuan Road, Haidian District, Beijing 100083, China.
Key Laboratory of Groundwater Circulation and Evolution, China University of Geosciences (Beijing), Ministry of Education, No. 29 Xueyuan Road, Haidian District, Beijing 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), No. 29 Xueyuan Road, Haidian District, Beijing 100083, China.
Bioresour Technol. 2014 May;159:272-9. doi: 10.1016/j.biortech.2014.02.079. Epub 2014 Mar 3.
To enhance the denitrification performance of soil infiltration, a soil infiltration system incorporated with sulfur-utilizing autotrophic denitrification (SISSAD) for domestic wastewater treatment was developed, and the SISSAD performance was evaluated using synthetic domestic wastewater in this study. The aerobic respiration and nitrification were mainly taken place in the upper aerobic stage (AES), removed 88.44% COD and 89.99% NH4(+)-N. Moreover, autotrophic denitrification occurred in the bottom anaerobic stage (ANS), using the CO2 produced from AES as inorganic carbon source. Results demonstrated that the SISSAD showed a remarkable performance on COD removal efficiency of 95.09%, 84.86% for NO3(-)-N, 95.25% for NH4(+)-N and 93.15% for TP. This research revealed the developed system exhibits a promising application prospect for domestic wastewater in the future.
为了提高土壤渗滤系统的反硝化性能,开发了一种利用硫自养反硝化(SISSAD)的土壤渗滤系统用于处理生活污水,并使用合成生活污水对该系统的 SISSAD 性能进行了评估。好氧呼吸和硝化主要发生在上层好氧段(AES),去除了 88.44%的 COD 和 89.99%的 NH4(+)-N。此外,自养反硝化发生在底部厌氧段(ANS),利用 AES 产生的 CO2 作为无机碳源。结果表明,SISSAD 对 COD 的去除效率达到了 95.09%,对 NO3(-)-N、NH4(+)-N 和 TP 的去除效率分别达到了 84.86%、95.25%和 93.15%。这项研究表明,开发的系统在未来对于生活污水具有广阔的应用前景。