Scrap iron for treatment of reactive dye wastewater
- 海洋环境－已发表论文 
研究了反应时间、染料浓度、进水pH以及不同的废铸铁屑投加量的条件下,废铸铁屑内电解法处理模拟印染废水的脱色能力。并采用铁屑滤床强化厌氧-好氧膜生物反应器(A/O MBR)处理含活性染料的模拟废水。研究结果表明,铁屑对模拟印染废水的最佳脱色时间为12min,酸性条件下铁屑的脱色率优于碱性条件,随铁屑投加量的增加,系统对印染废水的脱色率提高,铁屑滤床强化A/O MBR处理可以提高组合工艺出水色度和COD的去除率。 【英文摘要】 Scrap iron was effective for decolorizing reactive dye wastewater due to the redox reactions taking place near surface of scrap iron which functioned as electrode of the micro-cell systems. The effects of reaction time, dye concentration, influent pH and scrap iron dosage were investigated. The optimum reaction time was 12 min; the decolorization was better when the influent pH was acidic and/or a higher iron dose was employed. Scrap iron addition enhanced performance of the anaerobic-aerobic membrane biore...