木质素处理工业含铬废水的实验研究
|
摘要
探讨了木质素对工业含Cr~(6+)废水的处理情况,主要讨论了反应时间、木质素投加量、废水pH、废水中Cr~(6+)的质量浓度对Cr~(6+)吸附效果的影响。实验结果表明,当木质素的投加量为0.5 g、废水pH在4～8之间、搅拌时间为5 min时,对100 mL Cr~(6+)质量浓度为6 mg/L的废水中Cr~(6+)的吸附效果较好.
The treatment of industrial wastewater containing Cr~(6+) by lignin was discussed, and the effects of reaction time, lignin dosage, pH, and mass concentration of Cr~(6+) in wastewater on the adsorption effect of Cr~(6+) were discussed. The experiment results showed that when the lignin dosage was 0.5 g, the pH of wastewater was between 4 and 8, and the stirring time was 5 minutes, the adsorption effect of Cr~(6+) in 100 mL wastewater with a mass concentration of 6 mg/L was better.
The treatment of industrial wastewater containing Cr~(6+) by lignin was discussed, and the effects of reaction time, lignin dosage, pH, and mass concentration of Cr~(6+) in wastewater on the adsorption effect of Cr~(6+) were discussed. The experiment results showed that when the lignin dosage was 0.5 g, the pH of wastewater was between 4 and 8, and the stirring time was 5 minutes, the adsorption effect of Cr~(6+) in 100 mL wastewater with a mass concentration of 6 mg/L was better.
引文
[1]CHANG I S,KIM B H.Effect of sulfate reduction activity onbiological-reatment of hexavalent chromium[Cr(Ⅵ)]contaminated electroplating wastewater under sulfate-rich condition[J].Chemosphere,2007,68(2):218-226.
[2]LI L L,FAN L L,SUN M,et al.Adsorbent for chromium removal based on graphene oxide functionalized with magnetic cyclodextrin-chitosan[J].Colloids and Surfaces B:Biointerfaces,2013(107):76-83.
[3]赵会义,朱慎林,骆广生,等.用离子交换膨胀床去除铬离子[J].清华大学学报(自然科学版),2003,43(10):1309-1312.
[4]李道荣,王霞,张坤峰,等.氮掺杂TiO2对水中Cr(Ⅵ)的吸附[J].环境工程学报,2013,7(1):185-190.
[5]蒋挺大.木质素[M].北京:化学工业出版社,2001:110.
[6]EMBREE H D,CHEN T H,PAYNE G F.Oxygenated aromatic compounds from renewable resources:motivation,opportunities,and adsorptive separations[J].Chemical Engineering Journal,2001(84):133-138.
[2]LI L L,FAN L L,SUN M,et al.Adsorbent for chromium removal based on graphene oxide functionalized with magnetic cyclodextrin-chitosan[J].Colloids and Surfaces B:Biointerfaces,2013(107):76-83.
[3]赵会义,朱慎林,骆广生,等.用离子交换膨胀床去除铬离子[J].清华大学学报(自然科学版),2003,43(10):1309-1312.
[4]李道荣,王霞,张坤峰,等.氮掺杂TiO2对水中Cr(Ⅵ)的吸附[J].环境工程学报,2013,7(1):185-190.
[5]蒋挺大.木质素[M].北京:化学工业出版社,2001:110.
[6]EMBREE H D,CHEN T H,PAYNE G F.Oxygenated aromatic compounds from renewable resources:motivation,opportunities,and adsorptive separations[J].Chemical Engineering Journal,2001(84):133-138.