Textile Research Institute, Brzezinska 5/15, 92-103, Lodz, Poland,
Environ Sci Pollut Res Int. 2014 Nov;21(21):12223-32. doi: 10.1007/s11356-014-3028-z. Epub 2014 May 21.
The aim of our studies was to determine the efficiency of decomposition of non-ionic surfactant by the Fenton method in the presence of iron nanocompounds and to compare it with the classical Fenton method. The subject of studies was water solutions of non-ionic detergent Tergitol TMN-10 used in textile industry. Water solutions of the surfactant were subjected to treatment by the classical Fenton method and to treatment in the presence of iron nanocompounds. In the samples of liquid solutions containing the surfactant, chemical oxygen demand (COD) and total organic carbon (TOC) were determined. The Fenton process was optimized based on studies of the effect of compounds used in the treatment, doses of iron and nanoiron, hydrogen peroxide and pH of the solution on surfactant decomposition. Iron oxide nanopowder catalyzed the process of detergent decomposition, increasing its efficiency and the degree of mineralization. It was found that the efficiency of the surfactant decomposition in the process with the use of iron nanocompounds was by 10 to 30 % higher than that in the classical method. The amounts of formed deposits were also several times smaller.
我们研究的目的是确定在铁纳米复合物存在下，通过芬顿法分解非离子表面活性剂的效率，并将其与经典芬顿法进行比较。研究的对象是非离子洗涤剂 Tergitol TMN-10 的水溶液，该洗涤剂用于纺织工业。将表面活性剂的水溶液进行经典芬顿法处理和在铁纳米复合物存在下进行处理。在含有表面活性剂的液体溶液样品中，测定了化学需氧量（COD）和总有机碳（TOC）。根据处理中使用的化合物、铁和纳米铁的剂量、过氧化氢和溶液 pH 值对表面活性剂分解的影响，对芬顿工艺进行了优化。氧化铁纳米粉末催化了洗涤剂分解的过程，提高了其效率和矿化程度。结果表明，在使用铁纳米复合物的过程中，表面活性剂的分解效率比经典方法高 10%至 30%。形成的沉积物量也小了几倍。
