School of Environmental Science and Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, PR China.
Waste Manag. 2012 Dec;32(12):2401-5. doi: 10.1016/j.wasman.2012.06.022. Epub 2012 Jul 26.
There are numerous non-biodegradable organic materials in the mature landfill leachate. To meet the new discharge standard of China, additional advanced treatment is needed for the effluent from the biological treatment processes of leachate. In this study, a combined process including two stages of "Fenton-biological anaerobic filter (BANF)-biological aerated filter (BAF)" was evaluated to address the advanced treatment need. The Fenton oxidation was applied to reduce chemical oxygen demand (COD) and enhance biodegradability of refractory organics, and the BANF-BAF process was then applied to remove the total nitrogen (TN). The treatment achieved effluent concentrations of COD<70 mg/L, TN<40 mg/L and NH(3)-N<10 mg/L. The removal efficiency of COD and TN were 96.1% and 95.9%, respectively. The effluent quality met the new discharge standard for Pollution Control on the Landfill Site of Municipal Solid of PR China (GB16889-2008). The operation cost of these processes was about 36.1CHY/t (5.70USD/t).
在成熟的垃圾填埋场渗滤液中存在大量的不可生物降解的有机物质。为了满足中国新的排放标准，需要对渗滤液的生物处理工艺的出水进行额外的深度处理。在本研究中，评估了包括“芬顿-生物厌氧滤池（BANF）-生物曝气滤池（BAF）”两段工艺的组合工艺，以满足深度处理的需要。芬顿氧化法用于降低化学需氧量（COD）和提高难生物降解有机物的可生物降解性，然后采用 BANF-BAF 工艺去除总氮（TN）。处理后出水 COD<70mg/L、TN<40mg/L 和 NH3-N<10mg/L。COD 和 TN 的去除率分别达到 96.1%和 95.9%。出水水质符合中国《生活垃圾填埋场污染控制标准》（GB16889-2008）中的新排放标准。这些工艺的运行成本约为 36.1 元/吨（5.70 美元/吨）。
