The sorption of pentachlorophenol by aged sediment supplemented with black carbon produced from rice straw and fly ash.
The sorption of pentachlorophenol by aged sediment supplemented with black carbon produced from rice straw and fly ash.
复制标题
添加稻草和粉煤灰产生的黑碳的老化沉积物对五氯苯酚的吸附。
DOI：
10.1016/j.biortech.2012.02.058
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发表时间：
2012-05
影响因子：
11.4
通讯作者：
中科院分区：
文献类型：
--
作者：
黑碳具有很强的吸附能力，是一种很有潜力的沉积物疏水性有机污染物控制材料。研究了添加稻草生物炭和粉煤灰的沉积物对五氯酚的吸附行为。沉积物对五氯酚的吸附量随BC添加量的增加而增加，随BC添加量的增加而降低，随老化时间的延长和储存温度的升高而降低。添加RC的沉积物对PCP的吸附量高于添加FC的沉积物，无论BC是否在沉积物中老化。对于含有2% BC的老化沉积物，当补充有在25和45°C老化的RC时，吸附容量分别是FC的9.15和2.87倍。因此，生物炭比粉煤灰更好地控制有机污染物，即使RC在沉积物中存在很长一段时间。
Black carbon (BC) is a potential material for controlling hydrophobic organic contaminants in sediment because it has a high sorption capacity. In the present study, the sorption of pentachlorophenol (PCP) onto sediments supplemented with rice straw biochar (RC) and fly ash (FC) aged for different times and at temperatures were investigated. The sorption of PCP increased with increasing amounts of BC and decreased with aging time and storage temperature of the BC-supplemented sediments. The sorption of PCP onto RC-supplemented sediments was higher than those supplemented with FC regardless of whether or not BCs were aged in sediments. For aged sediments containing 2% BCs, the sorption capacity was 9.15- and 2.87-fold higher than that of FC when supplemented with RC aged at 25 and 45°C, respectively. Therefore, biochar is better than fly ash for controlling organic pollutants even when the RC was present in sediment for a long time.
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影响因子：
11.4
作者：
Pignatello, Joseph J.;Kwon, Seokoon;Lu, Yufeung
通讯作者：
Lu, Yufeung
影响因子：
5
作者：
Cheng, Chih-Hsin;Lehmann, Johannes;Engelhard, Mark H.
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Engelhard, Mark H.
影响因子：
11.8
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影响因子：
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通讯作者：
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影响因子：
11.4
作者：
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G. Cornelissen;Marie Elmquist;I. Groth;O. Gustafsson