The adsorption characteristics of Remazol Black B on anoxic sludge were investigated.The parameters,such as initial pH,sulphate concentration,and temperature,affecting the dye adsorption were studied.The adsorption da...The adsorption characteristics of Remazol Black B on anoxic sludge were investigated.The parameters,such as initial pH,sulphate concentration,and temperature,affecting the dye adsorption were studied.The adsorption data were analyzed with three adsorption isotherm models,namely Langmuir,Freudlich,and linear partition.The results showed that adsorption of Remazol Black B on the sterilized sludge reached equilibrium in 4 h.It also indicated that pH had significant effect on anoxic sludge adsorption behavior.The adsorption capacity of anoxic sludge decreased with the increase of pH value and the maximum adsorption capacity of dyes occurred at pH=3.The adsorptive capacities increased with the decrease of temperature and increase of sulphate concentration.Results also indicated that the adsorption equilibrium of Remazol Black B on anoxic sludge could be well fitted by Freundlich model.展开更多
基金Shanghai Leading Academic Discipline Project of China(No.B604)DERC Project of China(No.R00506)+1 种基金Projectof Key Laboratory of Science & Technology of Eco-Textile,China(No.EcoKF200708)Young Teacher Foundation of Donghua University,China(No.113100044018)
文摘The adsorption characteristics of Remazol Black B on anoxic sludge were investigated.The parameters,such as initial pH,sulphate concentration,and temperature,affecting the dye adsorption were studied.The adsorption data were analyzed with three adsorption isotherm models,namely Langmuir,Freudlich,and linear partition.The results showed that adsorption of Remazol Black B on the sterilized sludge reached equilibrium in 4 h.It also indicated that pH had significant effect on anoxic sludge adsorption behavior.The adsorption capacity of anoxic sludge decreased with the increase of pH value and the maximum adsorption capacity of dyes occurred at pH=3.The adsorptive capacities increased with the decrease of temperature and increase of sulphate concentration.Results also indicated that the adsorption equilibrium of Remazol Black B on anoxic sludge could be well fitted by Freundlich model.
