Rainwater as a source of drinking water: A resource recovery case study from Vietnam

Bui, Thi Thuy; Nguyen, Duc Canh; Han, Myung Joo; Kim, Mi-Kyeong; Park, Hyun-Ju

doi:10.1016/j.jwpe.2020.101740

Cited by 15 publications

(7 citation statements)

References 17 publications

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“…The promotion of public standpipes, community boreholes, and household water treatments can be some measures towards access to clean and safe water (Abubakar, 2019 ). Rainwater harvesting can be a suitable and economical alternative for improving access to clean water (Dao et al, 2017 ; Alim et al, 2020 ; Bui et al, 2021 ).…”

Section: Thematic Discussionmentioning

confidence: 99%

Attainment of water and sanitation goals: a review and agenda for research

Singh

2022

Sustain. Water Resour. Manag.

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One-fourth of the global population is without basic drinking water and half of the global population lacks sanitation facilities. The attainment of water and sanitation targets is difficult due to administrative, operational, political, transborder, technical, and policy challenges. Conducted after 5 years from the adoption of sustainable development goals by the United Nations reviews the initiatives for improving access, quality, and affordability of water and sanitation. The bibliometric and thematic analyses are conducted to consolidate the outcomes of scientific papers on sustainable development goal 6 (SDG 6). Africa is struggling in relation with water and sanitation goals, having 17 countries with less than 40% basic drinking water facilities and 16 countries with less than 40% basic sanitation facilities. Globally, the attainment of water and sanitation goals will be depended on economic development, the development of revolutionary measures for wastewater treatment, and creating awareness related to water usage, water recycling, water harvesting, hygiene, and sanitation. Behavioral changes are also required for a new water culture and the attainment of water and sanitation goals by 2030.

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Section: Thematic Discussionmentioning

confidence: 99%

Attainment of water and sanitation goals: a review and agenda for research

Singh

2022

Sustain. Water Resour. Manag.

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“…Each sample was then immersed in 50 mL of ultrapure water and kept at room temperature for 24 h. After hydration, the wet film was gently wiped using the filter paper and dried in an oven at 105 • C for approximately 24 h to a constant weight with good accuracy and reliability of data. Therefore, the water solubility (%) of the film was determined using Equation (6).…”

Section: Water Solubilitymentioning

confidence: 99%

“…Polymers 2022, 14, 2353 2 of 16 are prominently considered to be an important supply of drinking water in rural areas, which have a probability of causing iron toxicity [5,6]. Iron toxicity is a prevalent type of poisoning caused by intentional or unintentional ingestion, which might cause vomiting, diarrhea, nausea, abdominal pain, dehydration, and fatigue [7].…”

Section: Introductionmentioning

confidence: 99%

Development of Aloe Vera-Green Banana Saba-Curcumin Composite Film for Colorimetric Detection of Ferrum (II)

et al. 2022

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This study was performed to develop and characterize a bio-film composed of Aloe vera (Aloe barbadensis), green banana Saba (Musa acuminata x balbisiana), and curcumin for the detection of Fe2+ ions. Cross-linking interaction between banana starch-aloe vera gel and banana starch-curcumin enhanced l the sensing performance of the composite film towards divalent metal ions of Fe2+. The morphological structure of the Aloe vera-banana starch-curcumin composite revealed a smooth and compact surface without cracks and some heterogeneity when observed under Scanning Electron Microscopy (SEM). The thickness, density, color property, opacity, biodegradation, moisture content, water-solubility, water absorption, swelling degree, and water vapor permeability of bio-films were measured. The incorporation of aloe vera gel and curcumin particles onto the banana starch film has successfully improved the film properties. The formation of the curcumin-ferrum (II) complex has triggered the film to transform color from yellow to greenish-brown after interaction with Fe2+ ions that exhibit an accuracy of 101.11% within a swift reaction time. Good linearity (R2 = 0.9845) of response on colorimetric analysis was also obtained in Fe2+ ions concentration that ranges from 0 to 100 ppm, with a limit of detection and quantification found at 27.84 ppm and 92.81 ppm, respectively. In this context, the film was highly selective towards Fe2+ ions because no changes of color occur through naked eye observation when films interact with other metal ions, including Fe3+, Pb2+, Ni2+, Cd2+, and Cu2+. Thus, these findings encourage curcumin-based starch films as sensing materials to detect Fe2+ ions in the field of food and agriculture.

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“…With the recent concerns for sustainability as well as development of safe drinking water, rainwater has gained increasing interest as a safe water supply option [5]. Urban rainwater tank systems have undergone a surge to promote water conservation in both developed and developing countries [6].…”

Section: Introductionmentioning

confidence: 99%

“…However, the practice of transforming rainwater to drinking water is still rare, and only a few projects have been reported to date [9]. In Indonesia and Vietnam, rainwater has been traditionally utilized for drinking water through the boiling method [5,10]. Nevertheless, there are no standard regulations on the use of rainwater as a source of drinking water.…”

Section: Introductionmentioning

confidence: 99%

Effect of Radio-Frequency Treatment on the Changes of Dissolved Organic Matter in Rainwater

Hazmi

Rosadi

Desmiarti

et al. 2022

Water

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Rainwater is a potential source of drinking water, but has various components of dissolved organic matter (DOM). DOM is a reservoir of potential hazards in drinking water. Therefore, a new method is required to purify rainwater as a drinking water source in terms of DOM aspects. A radio-frequency (RF) treatment system is introduced here to purify source water with a small possibility of contamination. RF is generated by applying a frequency of 1.5 MHz through a glass reactor with a diameter of 2 mm which is wrapped by a 2 mm copper wire. The results demonstrate that UV260 value and dissolved organic carbon (DOC) are reduced during RF treatment. DOC was reduced by a lower amount compared to UV260, suggesting the partial transformation of bio-refractory DOM. A fluorescence excitation-emission matrix showed that humic-like substances in rainwater were reduced faster than protein-like ones, indicating that humic-like substances are susceptible to reduction by RF treatment. The results offer information on the use of RF treatment in a rainwater purification process for the production of drinking water.

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Rainwater as a source of drinking water: A resource recovery case study from Vietnam

Cited by 15 publications

References 17 publications

Attainment of water and sanitation goals: a review and agenda for research

Attainment of water and sanitation goals: a review and agenda for research

Development of Aloe Vera-Green Banana Saba-Curcumin Composite Film for Colorimetric Detection of Ferrum (II)

Effect of Radio-Frequency Treatment on the Changes of Dissolved Organic Matter in Rainwater

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