摘要
以第四周期过渡金属硅酸盐为催化剂,以过氧化氢为氧化剂,以酸性大红GR为降解对象,对染料废水的降解进行了研究.考察了催化剂种类、过氧化氢用量、催化剂用量、降解时间、降解温度、废水的初始浓度对废水降解率的影响.结果表明:硅酸铬、硅酸锰、硅酸亚铁、硅酸钴、硅酸镍、硅酸铜、硅酸锌对过氧化氢氧化降解酸性大红GR废水都有较高的催化活性,且以硅酸钴的催化活性最高.较好的降解条件为:硅酸钴0.0300 g,10 mg/L的酸性大红GR废水100 mL,30%过氧化氢0.3 mL,温度30℃,时间1 h,酸性大红GR废水的降解率可达99.8%.
The degradation of dye wastewater was studied by using the fourth period transition metal silicate as catalyst,hydrogen peroxide as oxidant and acid red GR as the degradation target.The effects of catalyst type,hydrogen peroxide dosage,catalyst dosage,degradation time,degradation temperature and initial concentration of wastewater on the degradation rate of wastewater were investigated.The results show that:chromium silicate,manganese silicate,ferrous silicate,cobalt silicate,nickel silicate,copper silicate and zinc silicate have high catalytic activity for the degradation of acid red GR wastewater by hydrogen peroxide oxidation,and the catalytic activity of cobalt silicate is the highest among these catalysts.when 0.0300 g cobalt silicate,100 mL 10 mg/L acid red GR wastewater and 0.3 mL 30%hydrogen peroxide were added together at the temperature of 30℃,the degradation rate of acid red GR wastewater can reach 99.8%in 1h.
作者
陈志敏
张翠红
李敏
李江
张路
CHEN Zhi-min;ZHANG Cui-hong;LI Min;LI Jiang;ZHANG Lu(Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第S01期163-166,共4页
Applied Chemical Industry
基金
2019年度山西省高等学校科技创新项目(2019L0919)
