生物炭
吸附
吸附剂
流出物
废水
化学
分配系数
制浆造纸工业
环境化学
氢氧化钠
污染物
吸附
环境科学
环境工程
色谱法
有机化学
热解
工程类
作者
Sujatha Sivarethinamohan,Gokulan Ravindiran,Joga Rao Hanumanthu,Kalyani Gaddam,P. Saravanan,Senthil Kumar Muniasamy
标识
DOI:10.1080/15567036.2021.1943070
摘要
Marine seaweed is considered as one of the efficient tools for the mitigation of carbon dioxide and it is naturally overgrown in India. Biochar produced from seaweeds will remediate the toxic pollutants present in the soil and wastewater. The current investigation examined the potential of biochar synthesized from Ulva reticulata for the decolorization of Remazol Brilliant Orange 3 R (RBO3R). An up-flow-packed bed column is designed to check the feasibility of the effluent treatment in a real wastewater system. The partition coefficient was calculated to elucidate the optimal initial RBO3R concentration that has the highest affinity toward the biochar and the column operating parameters namely sorbent bed depth, flowrate and the initial RBO3R concentration were also studied. To validate the experimental data mathematical models namely the modified dose-response model (MDR) and Yoon Nelson model (YN) were developed. The results concluded that the removal efficiency of 69.08% and sorption capacity of 0.1046 mmol/g was obtained. The biochar potential has been assessed by conducting three sorptions and an elution cycle continuously using 0.01 M sodium hydroxide as the elutant.
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