蚕茧对亚甲基蓝的吸附性能实验研究..docx

蚕茧对亚甲基蓝的吸附性能实验研究摘要：为研究蚕茧处理染料废水的实际吸附效果，以亚甲基蓝溶液模拟废水作为研究对象，我们考察了pH，初始溶液浓度，振荡时间，以及酸改性后的蚕茧，对亚甲基蓝溶液吸附效果的相关规律。在温度为30℃，pH为7—8时，振荡30min的条件下，0.05g亚甲基蓝可以使25mg，20mg/L的亚甲基蓝溶液吸附率达到94%以上。30℃，pH=8的条件下，理论上的饱和吸附量为9.68mg/g。酸改性之后的蚕茧较未改性的蚕茧吸附性能急剧下降。在30℃，pH=8的条件下，振荡30min的条件下，0.05g改性之后的蚕茧可以使25mg，20mg/L的亚甲基蓝溶液吸附率达到40%。本实验为蚕茧处理染料废水的最适条件提供了相关数据参考。关键词：蚕茧;吸附;亚甲基蓝;吸附性能Study on the absorption of Methylene Blue by CocoonAbstract: In order to explore the effects of cocoon on the absorption of dye waste water, methylene blue simulated wastewater was taken as the research object. It investigated the absorption effects and ?related?regulations? of the bagasse on the methylene blue in aqueous solution，such as different cocoon dosage，pH，shaking time，initial concentration of methylene blue and cocoon of acid modified. The results indicate that the absorption rate of methylene blue is up to 94% in solution with initial methylene blue concentration of 25 mg / L，cocoon dosage of 0.25g /100 mL，pH of 8，shaking time of 30 minutes andtemperature of 30 ℃．The theoretical saturated absorption amount of cocoon is 9.68mg/g at 30 ℃ .Compared to cocoon of not modified,the effects of acid modified cocoon on the absorption of dye waste water is sharply falling. Absorption rate of methylene blue is up to 40% in solution with initial methylene blue concentration of 25 mg / L，cocoon of acid modified dosage of 0.25g /100 mL，pH of 8，shaking time of 30 minutes andtemperature of 30 ℃．The optimum conditions for this experiment of cocoon dye wastewater treatment to provide the relevant reference data.Key words: cocoon; absorption; methylene blue; absorption effects前言4实验部分52.1实验材料52.2实验方法52.3分析方法6实验与讨论63.1亚甲基蓝溶液吸附标准曲线63.2亚甲基蓝溶液pH对吸附性能的影响73.3吸附时间和吸附亚甲基蓝效果的关系83.4改性之后的蚕茧对吸附效果的影响9结论和展望10参考文献11前言近年来，随着我国因让工业的飞速发展，每年都会有大量的印染废水排入到环境当中，造成了重大的污染。尤其是染料废水，其具有成分复杂，色度深，碱性大，水质变化大，排放量高等特点[1]。一些特殊的染料废水非一般的处理方法不能达到很好的处理效果，并且这种特定的处理工艺往往价格十分昂贵。例如，硫化碱还原时排出的含硫废水除使用昂贵的湿式氧化法处理外，其他方法难以达到排放标准。近年来采用加氢还原法，为了能够彻底消除了硫化物的污染。近年来往往采用加氢还原法，而为了能达到彻底消除汞污染，则将以前的汞催