环境保护科学2025，Vol.51Issue(2)：50-57,8.DOI:10.16803/j.cnki.issn.1004-6216.2023110015
基于生物成因黄钾铁矾的类Fenton催化法处理印染废水研究
Treatment of printing and dyeing wastewater by Fenton-like catalysis based on biogenic jarosite
摘要
Abstract
The textile printing and dyeing industry is characterized by high energy consumption and high water consumption.Efficient treatment of printing and dyeing wastewater to make it meet the discharge or reuse standards is of great significance for the sustainable development of this industry.The resting cells of A.ferrooxidans were used to biosynthesize jarosite,and jarosite was characterized and analyzed by an X-ray diffractometer(XRD)and a scanning electron microscope(SEM).At the same time,taking the actual printing and dyeing wastewater as the treatment object and the biogenic jarosite as the Fenton-like catalyst,the influences of factors such as the dosage of jarosite,the concentration of H2O2,the initial pH,and the reaction time on the treatment effect of printing and dyeing wastewater were investigated.The results showed that when T=25°C,the dosage of jarosite was 7.5 g/L,the concentration of H2O2 was 1,200 mg/L,pH=2.00,and the reaction time was 3 h,the highest removal rates of chemical oxygen demand(COD),total organic carbon(TOC),and chromaticity could reach 54.88%,89.95%,and 94.02%respectively.Jarosite had good reusability performance.After being reused for 6 times,the removal rates of COD,TOC,and chromaticity of the printing and dyeing wastewater only decreased by 4.88%,15.86%,and 4.02%respectively.The control experiment showed that when jarosite was used as a heterogeneous Fenton-like catalyst,its catalytic efficiency was significantly higher than that of the traditional Fenton reaction,and the removal rates of COD,TOC,and chromaticity were increased by 16.77%,31.27%,and 43.78%respectively.The research results provided a new idea for expanding the application of jarosite as a heterogeneous Fenton-like catalyst in the treatment of printing and dyeing wastewater.关键词
黄钾铁矾/催化剂/类Fenton反应/印染废水/嗜酸性氧化亚铁硫杆菌Key words
jarosite/catalyst/Fenton-like reaction/dyeing wastewater/A.ferrooxidans分类
环境科学引用本文复制引用
申祖武,杨娇羽,揭翠,罗浩伟,郭泽浩,宋永伟..基于生物成因黄钾铁矾的类Fenton催化法处理印染废水研究[J].环境保护科学,2025,51(2):50-57,8.基金项目
国家自然科学基金资助项目(21906183) （21906183）
中南财经政法大学中央高校基本科研业务费专项资金(2722023DK054 （）
2722023DK061) （）
