Suitable Water Harvesting Measures for Managing Drinking Water Scarcity in Different Provinces of India

Author(s):  
Rolland Andrade
2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Rohan S. Dassanayake ◽  
Nilmini Renuka

Hydrogels could harvest atmospheric moisture to produce clean drinking water mitigating the global water scarcity woes in future.


2021 ◽  
pp. 096466392110316
Author(s):  
Chloé Nicolas-Artero

This article shows how geo-legal devices created to deal with environmental crisis situations make access to drinking water precarious and contribute to the overexploitation and contamination of water resources. It relies on qualitative methods (interviews, observations, archive work) to identify and analyse two geo-legal devices applied in the case study of the Elqui Valley in Chile. The first device, generated by the Declaration of Water Scarcity, allows private sanitation companies to concentrate water rights and extend their supply network, thus producing an overexploitation of water resources. In the context of mining pollution, the second device is structured around the implementation of the Rural Drinking Water Programme and the distribution of water by tankers, which has made access to drinking water more precarious for the population and does nothing to prevent pollution.


Author(s):  
Anwar Parviz

Since water scarcity is an emerging problem in Pakistan; Water Resources Preservation is a matter of substantial importance. When excess water is used for agricultural purposes, it may damage the crops. Manual control and management of water for agricultural purposes take a lot of effort and time. This research work is an effort to propose and implement a fully automated solar irrigation system that may solve the problem of excessive usage of water for agricultural purposes. This proposed system, after sensing various indicators such as wind, temperature, soil, and rain, turns the water motor on and off accordingly and thus ensures calculated and wise usage of water. Moreover, our proposed system has a covering mechanism that covers the model during the rain and when needed.


Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2940
Author(s):  
Offir Inbar ◽  
Igal Gozlan ◽  
Stanislav Ratner ◽  
Yaron Aviv ◽  
Roman Sirota ◽  
...  

Alternative new technologies are urgently needed to overcome the rapidly increasing global water scarcity. Atmospheric dew water is a potential source of potable water, as the earth’s atmosphere contains billions of tons of fresh water (98% in a vapor state). The atmospheric water generator (AWG) converts water vapor into liquid water and is a promising solution for water scarcity. We provide the first comprehensive analysis of the chemical profiles of water produced for several months by an AWG in the city of Tel Aviv, Israel. Metals, inorganic ions, volatile organic compounds (VOCs), and semi-VOCs were analyzed in the dew water. The main elements found were ammonium, calcium, sulfate, and nitrate. Location of the sampling site in an urban residential area, between major traffic routes, likely affected the chemical composition of the produced dew water. Nevertheless, the produced water nearly always (day and night in different seasons) met the WHO and Israeli drinking water standards. Thus, even in a highly developed urban environment, the AWG offers an excellent alternative source of safe drinking water throughout the year.


Significance The poor, and small farmers, are the worst hit. Conflicts over the precious resource are impacting the mining and agricultural sectors. Agriculture represents 72% of water use, followed by drinking water (12%), industry (7%) and mining (4%). Consumption is expected to grow by 4.5% by 2030. Impacts Hydropower represents about 30% of Chile’s energy matrix, but backup from other energy sources should avoid outages. A further 20 desalination plants are in the pipeline, mainly implemented by the mining sector to resolve water scarcity in the north. A bill creating an institutional framework on climate change, sent to Congress in January, is in its first legislative stage in the Senate.


2020 ◽  
Vol 13 (2) ◽  
pp. 175-178
Author(s):  
Gulja S. Nair ◽  
Neenu Peter

Water scarcity is an alarming problem that we face now-a-days. Even though we have abundant sources of water, good quality water is not available when most needed. There comes the relevance of water conservation structures. Allocation of water in case of multipurpose projects among various competing needs such as drinking water, irrigation, industrial demands, downstream release, pisciculture etc. is a matter of great concern. Hence reservoirs must be subjected to thorough analysis to see that each drop of water impounded is utilized in the best possible manner. So a study was undertaken for the proposed Regulator-Cum-Bridge (RCB) on Bharathapuzha River at Chamravattom in Malappuram district of Kerala, with the specific objective of determining the optimum storage height of the regulator. The storage height was optimized by considering the inflow and demands on the reservoir for 18 years data. The height was decided as six meters as it gave least deficit when compared to four and five meters.


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