Point-of-use Unit Based on Gravity Ultrafiltration Removes Waterborne Gastrointestinal Pathogens from Untreated Water Sources in Rural Communities

Cháidez, Cristóbal; Ibarra-Rodríguez, J. R.; Valdez-Torres, José Benigno; Soto, Marcela; Gerba, Charles P.; Campo, Nohelia Castro‐del

doi:10.1016/j.wem.2016.05.006

Cited by 20 publications

(9 citation statements)

References 15 publications

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“…Previously, some inexpensive point-of-use devices were developed to treat virus-contaminated water. These include ironoxide bio-sand filters (Bradley et al, 2011), zero-valent iron filter (Shi et al, 2012), gravity-based ultrafilter (Chaidez et al, 2016), nanocellulose-based filter (Mautner, 2020), etc. Such devices will go in no small measure to further mitigate the potential infection of COVID-19 diseases, especially in a setting where there are no effective wastewater treatment systems.…”

Section: Development and Use Of The Point-of-use Device For Virus Decmentioning

confidence: 99%

“…Such devices will go in no small measure to further mitigate the potential infection of COVID-19 diseases, especially in a setting where there are no effective wastewater treatment systems. Chaidez et al (2016) developed a lowcost gravity ultrafiltration point-of-use for the treatment of wastewater for the waterborne gastrointestinal pathogen in rural communities of Mexico. Some point-of-use technologies have also been previously developed, especially for developing communities to remove selected waterborne pathogens (Pooi and Ng, 2018) and enteric viruses in the water systems (Gerba et al, 2018).…”

Section: Development and Use Of The Point-of-use Device For Virus Decmentioning

confidence: 99%

See 1 more Smart Citation

Snowballing transmission of COVID-19 (SARS-CoV-2) through wastewater: Any sustainable preventive measures to curtail the scourge in low-income countries?

Adelodun

Ajibade

Ibrahim³

et al. 2020

Science of The Total Environment

102

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Section: Development and Use Of The Point-of-use Device For Virus Decmentioning

confidence: 99%

Section: Development and Use Of The Point-of-use Device For Virus Decmentioning

confidence: 99%

Snowballing transmission of COVID-19 (SARS-CoV-2) through wastewater: Any sustainable preventive measures to curtail the scourge in low-income countries?

Adelodun

Ajibade

Ibrahim³

et al. 2020

Science of The Total Environment

102

View full text Add to dashboard Cite

show abstract

“…This would support the findings to be a better representation of the effectiveness of the alternative household water treatment method and whether or not the students would be able to adopt the new method into their daily lives. Other POU water treatment methods such as ultravoilet disinfection and gravity-fed ultrafilter have been proved to be effective and of low-cost water treatment technology (Chaidez et al 2016), and they could be implemented to see if the willingness of the subjects to treat drinking water would increase even more than already observed.…”

Section: Discussionmentioning

confidence: 99%

Willingness of boarding school students in Tanzania to employ point-of-use water treatment: a case study

Felix

Ngasala

Mbatta

2021

Journal of Water, Sanitation and Hygiene for Development

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Access to safe drinking water is a challenge for students in primary and secondary schools in Tanzania. Only 32.7% of primary and secondary schools in Tanzania have access to safe drinking water and the point-of-use water treatment is rarely used. The traditional water disinfection method by boiling is often limited in boarding schools due to cost and time constraints. The objectives were to assess the willingness and attitude of boarding school students toward the use of the alternative water treatment method and determine the quality of drinking water before and after the introduction of the new method. Chlorine tablets were used due to their availability, ease of use, cost, and effectiveness. Weekly evaluations on usage, performance, and acceptability of chlorine tablets were assessed on 42 randomly selected students over a 3-week period in parallel with water sampling and testing before and after using chlorine tablets. Before the introduction of chlorine, only 17% of the students were aware of chlorine tablets, and water sources tested positive for fecal coliform. After introducing the new method, there was a significant increase (p<0.05) in the attitude of students toward water treatment (100%), water quality (78%), and water consumption (67%). The work demonstrates the need to provide access to cost-effective household water treatment methods, especially in public schools that lack access to safe water.

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“…It is worth mentioning that the development of low-cost point-of-use treatment devices that could completely kill and remove SARS-CoV-2 should be the focus of all countries. Similar viruses have been removed from water systems using cheaper low-cost point-of-use treatment devices such as zero-valent iron filter, iron-oxide bio-sand filter, nanocellulose-based filter, gravity-based ultrafilter, and many more ( Bradley et al, 2011 ; Shi et al, 2012 ; Chaidez et al, 2016 ; Mautner, 2020 ). These devices can be effectively used for inactivating and destroying the SARS-CoV-2 genetic material, especially in Africa where there are no effective wastewater treatment systems.…”

Section: Sustainable Remedial Measures Of Sars-cov-2 Transmission In mentioning

confidence: 99%

Sources and routes of SARS-CoV-2 transmission in water systems in Africa: Are there any sustainable remedies?

Sunkari

Korboe

Abu³

et al. 2021

Science of The Total Environment

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Governments across the globe are currently besieged with the novel coronavirus (COVID-19) pandemic caused by SARS-CoV-2. Although some countries have been largely affected by this pandemic, others are only slightly affected. In this regard, every government is taking precautionary measures to mitigate the adverse effects of COVID-19. SARS-CoV-2 has been detected in wastewater raising an alarm for Africa due to the poor water, sanitation, and hygiene (WASH) facilities. Also, most countries in Africa do not have resilient policies governing sanitation and water management systems, which expose them to higher risk levels for the transmission of SARS-CoV-2. Therefore, this study unearthed the likely sources and routes of SARS-CoV-2 transmission in water systems (mainly wastewater) in Africa through a holistic review of published works. This provided the opportunity to propose sustainable remedial measures, which can be extrapolated to most developing countries in the world. The principal sources and routes of potential transmission of SARS-CoV-2 in water systems are hospital sewage, waste from isolation and quarantine centres, faecal-oral transmission, contaminated surface and groundwater sources, and contaminated sewage. The envisioned overwhelming impact of these sources on the transmission of SARS-CoV-2 through water systems in Africa suggests that governments need to put stringent and sustainable measures to curtail the scourge. Hence, it is proposed that governments in Africa must put measures like improved WASH facilities and public awareness campaigns, suburbanization of wastewater treatment facilities, utilizing low-cost point-of-use water treatment systems, legally backed policy interventions, and Community-Led Total Sanitation (CLTS). SARS-CoV-2 in water systems can be inactivated and destroyed by integrating ozonation, chlorination, UV irradiation, and sodium hypochlorite in low-cost point-of-use treatment systems. These proposed sustainable remedial measures can help policymakers in Africa to effectively monitor and manage the untoward impact of SARS-CoV-2 on water systems and consequently, on the health of the general public.

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Point-of-use Unit Based on Gravity Ultrafiltration Removes Waterborne Gastrointestinal Pathogens from Untreated Water Sources in Rural Communities

Cited by 20 publications

References 15 publications

Snowballing transmission of COVID-19 (SARS-CoV-2) through wastewater: Any sustainable preventive measures to curtail the scourge in low-income countries?

Snowballing transmission of COVID-19 (SARS-CoV-2) through wastewater: Any sustainable preventive measures to curtail the scourge in low-income countries?

Willingness of boarding school students in Tanzania to employ point-of-use water treatment: a case study

Sources and routes of SARS-CoV-2 transmission in water systems in Africa: Are there any sustainable remedies?

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