Fog-water collection for community use

Fessehaye, Mussie; Abdul‐Wahab, Sabah A.; Savage, Michael J.; Köhler, Thomas; Gherezghiher, Tseggai; Hurni, Hans

doi:10.1016/j.rser.2013.08.063

Cited by 186 publications

(172 citation statements)

References 25 publications

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“…The local partner(s) must be committed for a period after the system is handed over to the community to provide occasional technical support when the community may need assistance that is beyond their means. Studies have demonstrated that fog collection technology works effectively at a local level when a high sense of ownership has been created by community involvement and sensitization [17].…”

Section: Community Development and Gender Equity And Equalitymentioning

confidence: 99%

“…There is a waiting list of families who wish to have their own fog collector systems [33]. Contrary to this, lack of, or limited, community involvement resulted in the partial or complete failure of the fog collection systems at other places, such as Serra Malgagueta, Cape Verde; El Tofo and Padre Hurtado, Chile; and Pachamama Grande, Ecuador; among others [17]. Socio-political instability also interferes with the implementation of fog water collection systems, which can prevent external investments and discourages volunteer work [35,36].…”

Section: Community Development and Gender Equity And Equalitymentioning

confidence: 99%

“…The planning and initial stages of projects are usually supported by external organizations that rely on local institutions with required expertise and involvement in the activities to ensure sustainability over time. Therefore, project teams should be composed of community members alongside of experts with technical and financial knowledge to support the biophysical aspects of the project, as well as professionals with social science backgrounds to address the social and cultural aspects with beneficiary communities [17].…”

Section: Policies and Institutionsmentioning

confidence: 99%

“…Later studies focused on the material composition of fog collection nets and their sizes, direction, and angle of installation of fog collectors, wind intensity, and climate and topography of the area. A timeline on the history of several fog and dew water collection methods that were practiced in arid and semi-arid areas is available elsewhere [17].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fog Water Collection: Challenges beyond Technology

Qadir

Jiménez

Farnum

et al. 2018

Water

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Abstract:The Sustainable Development Goal (SDG) 6, calling for access to safe water and sanitation for all by the year 2030 supports the efforts in water-scarce countries and regions to go beyond conventional resources and tap unconventional water supplies to narrow the water demand-supply gap. Among the unconventional water resources, the potential to collect water from the air, such as fog harvesting, is by far the most under-explored. Fog water collection is a passive, low maintenance, and sustainable option that can supply fresh drinking water to communities where fog events are common. Because of the relatively simple design of fog collection systems, their operation and maintenance are minimal and the associated cost likewise; although, in certain cases, some financially constrained communities would need initial subsidies. Despite technology development and demonstrated benefits, there are certain challenges to fog harvesting, including lack of supportive policies, limited functional local institutions, inexpert communities, gender inequality, and perceived high costs without undertaking comprehensive economic analyses. By addressing such challenges, there is an opportunity to provide potable water in areas where fog intensity and duration are sufficient, and where the competition for clean water is intensifying because water resources are at a far distance or provided by expensive sources.

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Section: Community Development and Gender Equity And Equalitymentioning

confidence: 99%

Section: Community Development and Gender Equity And Equalitymentioning

confidence: 99%

Section: Policies and Institutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fog Water Collection: Challenges beyond Technology

Qadir

Jiménez

Farnum

et al. 2018

Water

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“…The droplets may then be harvested by artificial structures resembling tennis nets equipped with rain gutters as has been investigated in many previous studies (e.g. Schemenauer and Cereceda, 1991;Klemm et al, 2012;Fessehaye et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Estimates of global dew collection potential on artificial surfaces

Vuollekoski

Vogt

Sinclair

et al. 2015

Hydrol. Earth Syst. Sci.

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Abstract. The global potential for collecting usable water from dew on an artificial collector sheet was investigated by utilizing 34 years of meteorological reanalysis data as input to a dew formation model. Continental dew formation was found to be frequent and common, but daily yields were mostly below 0.1 mm. Nevertheless, some water-stressed areas such as parts of the coastal regions of northern Africa and the Arabian Peninsula show potential for large-scale dew harvesting, as the yearly yield may reach up to 100 L m −2 for a commonly used polyethylene foil. Statistically significant trends were found in the data, indicating overall changes in dew yields of between ±10 % over the investigated time period.

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Magnetically Induced Fog Harvesting via Flexible Conical Arrays

Peng

Yang

et al. 2015

Adv Funct Materials

159

132

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Water is the driving force of all nature. Securing freshwater has been one of the most important issues throughout human history, and will be important in the future, especially in the next decade. Fog is ubiquitous in nature and is therefore considered as an alternative and sustainable freshwater resource. Nature has long served as a source of inspiration to develop new fog‐harvesting technologies. However, the collection of freshwater from static fog is still a challenge for the existing bio‐inspired fog‐harvesting systems. Herein, magnetically induced fog harvesting under windless conditions through the integration of cactus‐inspired spine structures and magnetically responsive flexible conical arrays is reported. Under an external magnetic field, static fog can be spontaneously and continuously captured and transported from the tip to the base of the spine due to the Laplace pressure difference. This work demonstrates the advantage of collecting fog water, especially in windless regions, which provides a new avenue for fog harvesting and can serve as a source of inspiration to further optimizations of existing fog‐water‐harvesting strategies.

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Fog-water collection for community use

Cited by 186 publications

References 25 publications

Fog Water Collection: Challenges beyond Technology

Fog Water Collection: Challenges beyond Technology

Estimates of global dew collection potential on artificial surfaces

Magnetically Induced Fog Harvesting via Flexible Conical Arrays

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