Experimental Investigations of a Solar Water Treatment System for Remote Desert Areas of Pakistan

Ahmad, Muhammad, Yaqoob, Haseeb, Farooq, Muhammad Umar, Teoh, Yew Heng, Xu, Bin, Mahkamov, Khamid, Sultan, Muhammad, Ng, Kim Choon and Shahzad, Muhammad Wakil (2021) Experimental Investigations of a Solar Water Treatment System for Remote Desert Areas of Pakistan. Water, 13 (8). p. 1070. ISSN 2073-4441

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Abstract

Pakistan is among the countries that have already crossed the water scarcity line, and the situation is worsened due to the recent pandemic. This is because the major budget of the country is shifted to primary healthcare activities from other development projects that included water treatment and transportation infrastructure. Consequently, water-borne diseases have increased drastically in the past few months. Therefore, there is a dire need to address this issue on a priority basis to ameliorate the worsening situation. One possible solution is to shift the focus/load from mega-projects that require a plethora of resources, money, and time to small domestic-scale systems for water treatment. For this purpose, domestic-scale solar stills are designed, fabricated, and tested in one of the harshest climatic condition areas of Pakistan, Rahim Yar Khan. A comprehensive overview of the regional climatology, including wind speed, solar potential, and ambient temperature is presented for the whole year. The analysis shows that the proposed system can adequately resolve the drinking water problems of deprived areas of Pakistan. The average water productivity of 1.5 L/d/m2 is achieved with a total investment of PKR 3000 (<20). This real site testing data will serve as a guideline for similar system design in other arid areas globally.

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