Comparison of the drinking water standard for pesticides of the Brazil with other countries

Oliveira, Dinoraide Mota de; Agostinetto, Lenita; Siegloch, Ana Emília

doi:10.1016/j.heliyon.2023.e13783

Cited by 6 publications

(1 citation statement)

References 40 publications

(42 reference statements)

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“…The 31ml water produced in this study contributed to supporting WHO standard fresh water supplies [18] and several countries in the world [19][20][21][22], as the implementation of TEC modules that are beneficial to humans [23][24][25][26].…”

Section: Comparison Of Water Volume Rh and Equipment Effectiveness Wi...mentioning

confidence: 99%

Atmospheric Water Harvesting Using Thermoelectric Cooling Technology

Djafar,

Arman,

Sakka

et al. 2023

IJDNE

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Given Indonesia's average atmospheric humidity of 75% to 85%, this study explores the potential of atmospheric air as an alternative clean water source to mitigate water shortage. The research employs a thermoelectric cooler (TEC 1-12706), supplemented with a heatsink and fan on its hot side to enhance heat dissipation. A copper-made cooling coil serves as both a heat absorber and a condenser for atmospheric air passing through it. The cooling source for the coil (diameter=7.9mm; length=1000mm) is derived from a waterblock attached to the cooler's cold side. Experiments were conducted across three environmental conditions: laboratory, residential area, and coastal area, with the air flow rate of the heatsink cooling fan varied. Data collection spanned a humidity range of 72.27%-83.01%. Findings revealed a direct correlation between the air mass flow rate of the heatsink cooling fan and the amount of water extractable from the air. In initial testing at the Laboratory, at a mass flow rate of 0.046 kg/s it produced 4.25 ml/hour and at 0.069 kg/s it produced 4.625 ml/hour and at 0.092 kg/s it produced 5.5 ml/hour. Furthermore, from the three environmental conditions tested, more water can be extracted on the coast than in laboratories and residential areas. In coastal areas, the air mass flow rate is 0.092 kg/s, water that could be extracted is 7.75 ml/hour, while in the laboratory environment it is 5.5 ml/hour and in residential areas it is 4.75 ml/hour. These promising results encourage further research to augment water extraction by maximizing the contact surface between the air cooler and the coil surface, potentially offering a viable solution for clean water shortage.

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