Goslan Emma H, Gurses Filiz, Banks Jenny, Parsons Simon A
School of Water Sciences, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK.
Chemosphere. 2006 Nov;65(7):1113-9. doi: 10.1016/j.chemosphere.2006.04.041. Epub 2006 Jun 12.
A comparison of four treatment technologies for reduction of natural organic matter (NOM) in a reservoir water was made. The work presented here is a laboratory based evaluation of NOM treatment by UV-C photolysis, UV/H(2)O(2), Fenton's reagent (FR) and photo-Fenton's reagent (PFR). The work investigated ways of reducing the organic load on water treatment works (WTWs) with a view to treating 'in-reservoir' or 'in-pipe' before the water reaches the WTW. The efficiency of each process in terms of NOM removal was determined by measuring UV absorbance at 254 nm (UV(254)) and dissolved organic carbon (DOC). In terms of DOC reduction PFR was the most effective (88% removal after 1 min) however there were interferences when measuring UV(254) which was reduced to a lesser extent (31% after 1 min). In the literature, pH 3 is reported to be the optimal pH for oxidation with FR but here the reduction of UV(254) and DOC was found to be insensitive to pH in the range 3-7. The treatment that was identified as the most effective in terms of NOM reduction and cost effectiveness was PFR.
对水库水中天然有机物（NOM）的四种处理技术进行了比较。本文介绍的工作是基于实验室对UV-C光解、UV/H₂O₂、芬顿试剂（FR）和光芬顿试剂（PFR）处理NOM的评估。该工作研究了降低水处理厂（WTWs）有机负荷的方法，目的是在水到达WTW之前进行“水库内”或“管道内”处理。通过测量254nm处的紫外吸光度（UV₂₅₄）和溶解有机碳（DOC）来确定每个过程在去除NOM方面的效率。就DOC去除而言，PFR最有效（1分钟后去除率达88%），然而在测量UV₂₅₄时存在干扰，其降低程度较小（1分钟后为31%）。文献报道pH 3是FR氧化的最佳pH，但在此发现UV₂₅₄和DOC的降低在3至7的pH范围内对pH不敏感。在NOM去除和成本效益方面被确定为最有效的处理方法是PFR。
