Rygaard Martin, Arvin Erik, Binning Philip J
Department of Environmental Engineering, Technical University of Denmark, Miljøvej, Bygning 113, DK-2800 Kgs. Lyngby, Denmark.
Water Res. 2009 Mar;43(5):1207-18. doi: 10.1016/j.watres.2008.12.014. Epub 2008 Dec 24.
As water supplies increasingly turn to use desalination technologies it becomes relevant to consider the options for remineralization and blending with mineral rich water resources. We present a method for analyzing economic consequences due to changes in drinking water mineral content. Included impacts are cardiovascular diseases, dental caries, atopic eczema, lifetime of dish and clothes washing machines, heat exchangers, distribution systems, bottled water consumption and soap usage. The method includes an uncertainty assessment that ranks the impacts having the highest influence on the result and associated uncertainty. Effects are calculated for a scenario where 50% of Copenhagen's water supply is substituted by desalinated water. Without remineralization the total impact is expected to be negative (euro -0.44+/-0.2/m(3)) and individual impacts expected in the range of euro 0.01-0.51/m(3) delivered water. Health impacts have the highest contribution to impact size and uncertainty. With remineralization it is possible to reduce several negative impacts and the total impact is expected to be positive (euro 0.14+/-0.08/m(3)).
随着供水越来越多地采用海水淡化技术，考虑再矿化以及与富含矿物质的水资源混合的方案变得至关重要。我们提出了一种分析饮用水矿物质含量变化所带来经济后果的方法。所涵盖的影响包括心血管疾病、龋齿、特应性皮炎、洗碗机和洗衣机的使用寿命、热交换器、供水系统、瓶装水消费量以及肥皂使用量。该方法包括一项不确定性评估，对那些对结果影响最大以及相关不确定性的影响进行排序。针对哥本哈根50%的供水被淡化水替代的情景计算了影响。在没有再矿化的情况下，总影响预计为负（-0.44±0.2欧元/立方米），每立方米供水的个体影响预计在0.01 - 0.51欧元范围内。健康影响对影响大小和不确定性的贡献最大。通过再矿化，可以减少一些负面影响，总影响预计为正（0.14±0.08欧元/立方米）。
