摘要
以秸秆和粉煤灰制得纤维陶粒，作为曝气生物滤池（BAF）的载体填料处理生活污水和餐饮废水，考察了装置对COD、氨氮和总磷的去除情况，并用经稀释后的高浓度含油餐饮废水来考察其抗冲击负荷能力。结果表明：水处理运行期间，装置对城市污水主要污染物COD、氨氮和总磷的去除效率相对稳定，10d平均去除率分别为90．33％．77．44％，82．41％；出水浓度均低于GB8978-1996一级标准、GB18918-2002一级A标准和DB32／1072-2007规定的城镇污水处理厂Ⅰ、Ⅱ级主要水污染物排放限值，出水水质良好。对高浓度含油餐饮废水的COD，氨氮和总磷的去除效率平均分别为86．5％．68．98％．80．3％，均低于对城市污水的相应去除效率；除COD外，装置出水保持较好的脱氮除磷效果，说明纤维陶粒作为BAF载体填料对高浓度COD废水具有一定的抗冲击负荷能力。
Fibre ceramsite was used as a carrier filler of biological aerated filter （BAF） to treat domestic and restaurant wastewater. After biofilm culturing, effects of the facility to remove COD, NH3-N and total phosphorus in sewage were investigated, and then diluted high strength restaurant wastewater containing oil and grease was taken as an example to observe and study its shock load capacity. The results implied that the removal efficiencies of COD, NH3-N and total phosphorus were relatively stable with average removal rates of 90.33%, 77.44% and 82.41% within 10 days, respectively, and the effluent was in compliance with the standards of Class Ⅰ of GB 8978-1996, A of Class Ⅰ of GB 18918-2002 and Class Ⅰ or Ⅱ limits of pollutant discharges specified for municipal wastewater treatment plants in DB 32/1072-2007. The quality of the effluent was acceptable. The removal rates of COD, NH3-N and total phosphorus in restaurant wastewater were 86.5%, 68.98% and 80.3%, respectively, all lower than relevant rates in the treatment of sewage. The facility could keep the effluent with fairly good abilities in denitrification and phosphorous removal. It has indicated that fibre ceramsite in BAF used as carrier filler had a certain capacity against shock load to deal with high strength of COD in wastewater.
出处
《上海环境科学》
CAS
2014年第1期40-43,共4页
Shanghai Environmental Sciences
基金
安徽省高等学校自然科学研究重点项目,编号:KJ2010A314
宿州学院一般科研项目,编号:2012yyb03
宿州学院优秀青年人才基金项目,编号:2013XQRL05
关键词
纤维陶粒
曝气生物滤池
载体填料
生活污水
餐饮废水
Fibre ceramsite Biological aerated filter Carrier filler Domestic wastewater Restaurant wastewater
