Dew, fog, and rain as supplementary sources of water in south-western Morocco

被引:92
作者
Lekouch, I. [2 ,3 ]
Muselli, M. [3 ,4 ]
Kabbachi, B. [2 ]
Ouazzani, J. [3 ,5 ]
Melnytchouk-Milimouk, I. [3 ,5 ]
Beysens, D. [1 ,3 ,6 ]
机构
[1] ESPCI, CEA, ESEME, PMMH, F-75231 Paris 05, France
[2] Univ Ibn Zohr Agadir, Agadir 80000, Morocco
[3] Int Org Dew Utilizat, F-75015 Paris, France
[4] Univ Corse, CNRS, UMR 6134, F-20000 Ajaccio, France
[5] Arcofluid, F-33600 Pessac, France
[6] CEA Grenoble, SBT, Equipe Supercrit Environm Mat & Espace, F-38504 Grenoble, France
关键词
Dew water; Dew chemistry; Rain water; Rain chemistry; AJACCIO CORSICA ISLAND; DRY DEPOSITION; ACID DEPOSITION; URBAN DEW; CHEMISTRY; COLLECTION; PRECIPITATION; CALIFORNIA; RESOURCE; COASTAL;
D O I
10.1016/j.energy.2010.03.017
中图分类号
O414.1 [热力学];
学科分类号
摘要
One full year of dew, fog and rain collection measurements data were collected during 2007-2008 of in the dryland area of Mirleft, Morocco, for use a:; alternative or supplemental sources of water. Four passive dew condensers and a passive fog net collector were used, each with 1 m(2) surfaces. Meteorological data were collected in parallel. During the observation period, 178 dew events (18.85 mm), 31 rain events (48.65 mm) and 7 significant fog episodes (1.41 mm) occurred, corresponding to almost 40% of the yearly rain contribution (48.7 mm, 31 events). Chemical and biological analyses were carried out. Dew and rain pH were neutral (close to 7) and the total mineralization was considerable (dew: 560 mg/L; rain: 230 mg/L). Ca2+, K+, SO42- and NO3- were of continental origin; Cl-, Na+ and Mg2+ were of sea origin. The ions concentration agrees with the World Health Organization recommendations for potable water. The biological analysis shows harmless vegetal spores and little contamination by animal/human bacteria. A cost analysis shows that, with little investment, the population of the arid and semi-arid coastal areas of south-western north Africa could make dew water a useful supplementary alternative water resource. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2257 / 2265
页数:9
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