Evaluating disinfection techniques of water treatment

Gelete, Gebre; Gökçekuş, Hüseyin; Ozsahin, Dilber Uzun; Uzun, Berna; Gichamo, Tagesse

doi:10.5004/dwt.2020.25070

Cited by 19 publications

(3 citation statements)

References 26 publications

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“…Unfortunately, despite the progress made in the past decades around the world, access to safe drinking water remains one of the major challenges of the 21st century [6]. According to the World Health Organization and United Nations Children Fund (WHO/UNICEF) joint program report (2021), 25% of the world's population still lacks access to safe water as a source of food [7,8].…”

Section: Introductionmentioning

confidence: 99%

Reduction of Malnutrition Related to Unsafe Water Consumption in Developing Countries: Potabilization of Surface Water and Traditional Well Water, with Plant Extracts

Konkobo,

Diao,

Savadogo

et al. 2024

IJERPH

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The consumption of unsafe water in rural areas is a real public health problem in developing countries. This situation mainly affects children under five years of age and causes several deaths and many cases of malnutrition every year. The objective of this study was to evaluate and optimize the capacity of four local plant extracts in the potabilization of unsafe water. Thus, Moringa oleifera and Boscia senegalensis seeds, or Aloe vera and Opuntia ficus-indica mucilages were prepared in a solution and applied during a jar test as biocoagulants and bioflocculants on three raw water samples of 82.3 NTU, 549.8 NTU and 796.9 NTU. After treatment results showed that 0.9 g/L of Moringa biocoagulant or 1 g/L of Boscia biocoagulant applied with 0.4 mL of Aloe vera bioflocculant or 0.6 mL of Opuntia ficus-indica bioflocculant reduced the turbidity of each water sample to values less than 5 NTU after only 15 min of decanting. Moreover, the sanitary quality of the water treated by these different extracts showed a perfect conformity of the physicochemical and microbiological parameters with the standards of acceptability in drinking water decreed by the World Health Organization. Thus, the application of these local plant extracts has made it possible to considerably improve the quality of unsafe water in record time. Their popularization could be an alternative in the fight against malnutrition related to the consumption of unsafe water, especially in rural areas.

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Section: Introductionmentioning

confidence: 99%

Reduction of Malnutrition Related to Unsafe Water Consumption in Developing Countries: Potabilization of Surface Water and Traditional Well Water, with Plant Extracts

Konkobo,

Diao,

Savadogo

et al. 2024

IJERPH

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“…The most popular way to disinfect water is chlorination using chlorine gas. This method is relatively cheap and effective, but it affects the deterioration of the organoleptic properties of water (which is particularly important when replacing water for drinking or hygiene purposes) and may cause the formation of organic by-products, such as trihalomethanes, haloacetic acids or chloramines, which are harmful for health [8][9][10]. Advanced oxidation methods require the active use of chemical precursors for the synthesis of active hydroxyl radicals, and AOP methods also involve relatively 2 long water treatment cycles.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and Synergy Effect of the Hybrid Water Disinfection Process Using Electric Discharges Combined with Chlorination

Malyushevskaya,

Koszelnik,

Mitryasova

et al. 2024

Preprint

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An analysis of the physical and chemical phenomena accompanying the electrical discharges was carried out, principal factors inactivating microorganisms is studied. Characteristic factors of an electric discharge in cavitation mode providing a synergistic effect when disinfecting water with a discharge and chemical reagents are identified in order of importance. As a result of the integral action of cavitation, the inactivation of bacteria is intensified both due to the emergence of chem-ically active particles and due to local shock waves, acoustic currents and ultraviolet radiation in the area of cavitating bubbles. The similarity of cavitation processes in water systems implemented by underwater electric discharges and with the ultrasound has been experimentally proved. The main advantage of electric discharge cavitation in comparison with ultrasonic one is the wide band of ultrasonic frequencies of radiation inherent in electric discharge, high intensity and power of cav-itation processes, and, accordingly, the possibility of a significant increase in the volume of the disinfected liquid. The study enable better understanding and prediction of the effects that occur during a high-voltage underwater electrical discharge and have a bactericidal effect.

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“…Actualmente, existe un riguroso control sobre la calidad del agua de consumo en los núcleos poblacionales, la cual está en función del uso al que se vaya a destina, aunque siempre con estrictos requerimientos. Debido a esto, las exigencias de calidad se han visto incrementadas hasta suponer una fuente fiable libre de agentes patógenos y elementos nocivos que puedan ser dañinos para el ser humano (Salas-Salvadó et al, 2020), existiendo y desarrollándose nuevas técnicas de desinfección en la actualidad (A.E et al, 2023;Gelete et al, 2020).…”

Section: Introductionunclassified

Estudio de la calidad del agua en los puntos de suministro al usuario del campus de la Universidad de Alicante

2023

Proceedings From the International Congress on Project Management and Engineering

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The protection of health and the prevention of water-related diseases is a major challenge for water supply systems. Disinfection ensures the effective elimination of any pathogenic organism that may be a source of waterborne diseases. Based on Royal Decree 902/2018, of 20 July, based on the WHO risk assessment methodology and from which the Water Health Plans are derived, and Royal Decree 140/2003, of 7 February, which establishes the health criteria for the quality of water for human consumption, the correct compliance with the Water Health Plan, recently implemented at the University of Alicante, is analysed through an extensive campaign of quality analysis at different points throughout the university. In addition, different agronomic indices are studied to determine its suitability as irrigation water. It is concluded that, despite the long period of disuse of the facilities caused by the pandemic and inactivity during the summer months, the water on campus has the minimum quality required, being suitable for human consumption and increasing the confidence of users in the quality of drinking water on campus.

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Evaluating disinfection techniques of water treatment

Cited by 19 publications

References 26 publications

Reduction of Malnutrition Related to Unsafe Water Consumption in Developing Countries: Potabilization of Surface Water and Traditional Well Water, with Plant Extracts

Reduction of Malnutrition Related to Unsafe Water Consumption in Developing Countries: Potabilization of Surface Water and Traditional Well Water, with Plant Extracts

Mechanism and Synergy Effect of the Hybrid Water Disinfection Process Using Electric Discharges Combined with Chlorination

Estudio de la calidad del agua en los puntos de suministro al usuario del campus de la Universidad de Alicante

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