Nieto L M, Hodaifa G, Vives S R, Casares J A G, Driss S B, Grueso R
Chemical Engineering Department, Granada University, 18071 Granada, Spain.
Water Sci Technol. 2009;59(10):2017-27. doi: 10.2166/wst.2009.165.
This study offers a solution for reducing the environmental effect of wastewaters generated by the olive-oil industry. Olive-oil companies produce variable quantities of wastewaters, which require treatment for disposal or reuse. Today, regulations are becoming increasingly strict regarding the parameters measured in these effluents. In Spain, the resolution by the president of the Hydrographical Confederation of the Guadalquivir on water use 2004 set parameter limits as follows: pH = 6.0-9.0, total suspended solid = 500 mg/L; and COD and BOD(5) (20)=1,500 mg O(2)/L. For the year 2006, maximum values for COD and BOD(5) (20) were fixed at 1,000 mg O(2)/L. To solve this problem, a study has been made to derive irrigation water from the above-mentioned effluents through chemical oxidation based on the Fenton's process. This would be first step towards using a closed-circuit system in olive-oil mills to treat and reuse effluents.
本研究提供了一种减少橄榄油行业产生的废水对环境影响的解决方案。橄榄油公司产生的废水量各不相同，这些废水需要进行处理以进行处置或再利用。如今，对于这些废水中所测参数的规定越来越严格。在西班牙，瓜达尔基维尔河水利联合会主席于2004年发布的用水决议设定了如下参数限值：pH = 6.0 - 9.0，总悬浮固体 = 500毫克/升；化学需氧量和五日生化需氧量（20℃）= 1500毫克氧/升。对于2006年，化学需氧量和五日生化需氧量（20℃）的最大值定为1000毫克氧/升。为解决这一问题，已开展一项研究，通过基于芬顿工艺的化学氧化从上述废水中获取灌溉用水。这将是朝着在橄榄油加工厂使用闭路系统处理和再利用废水迈出的第一步。
