Household water treatment systems: A solution to the production of safe drinking water by the low-income communities of Southern Africa

Mwabi, Jocelyne K.; Adeyemo, Folasade Esther; Mahlangu, Oranso T.; Mamba, Bhekie B.; Brouckaert, B.M.; Swartz, Christopher H.; Offringa, G.; Mpenyana-Monyatsi, Lizzy; Momba, Maggy Ndombo Benteke

doi:10.1016/j.pce.2011.07.078

Cited by 75 publications

(60 citation statements)

References 32 publications

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“…Aunque estadísticamente se confirmó la existencia de diferencias significativas entre ambos sistemas, en términos de la variable turbiedad, se requiere de un análisis integral de los resultados considerando variables de tipo económi-co, operativo y de mantenimiento, que pueden influir en el grado de sostenibilidad y aceptación de una tecnología por parte de las comunidades (14).…”

Section: Discussionunclassified

“…Con relación al uso de sistemas de filtración caseros, existen estudios a nivel internacional que han evaluado la viabilidad de diferentes tecnologías para comunidades rurales como filtros lentos en arena (10,11), filtros de velas cerá-micas (12)(13)(14), filtros de membrana (15,16) y Ollas cerámicas (17)(18)(19). En Colombia se reportan algunos estudios relacionados con filtros de velas cerámicas (20) y ollas cerámicas (21,22), operados durante cortos periodos de tiempo.…”

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Evaluación del tratamiento de agua para consumo humano mediante filtros Lifestraw® y Olla Cerámica

et al. 2016

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RESUMENObjetivo Evaluar la eficiencia de dos sistemas de filtración casera: LifeStraw ® family (FM) y Filtro de Olla Cerámica (FOC) en el tratamiento del agua para consumo humano bajo condiciones controladas de laboratorio y en términos de remoción de Turbiedad y E.coli. Métodos Ambos sistemas se operaron durante 6 meses tratando diariamente 7,5 litros de sustrato sintético. La turbiedad del sustrato se ajustó con Caolín y la concentración de E.coli con la réplica de la cepa ATCC 95922. Los resultados obtenidos en términos de remoción de turbiedad y E. coli fueron evaluados con un análisis de varianza (ANOVA) y considerando aspectos operativos y de mantenimiento. Resultados La turbiedad del sustrato sintético presentó un promedio 32,3 ± 2,8 UNT y la concentración de E. coli 3,9 x105 UFC/100mL. Ambos sistemas de filtración disminuyeron la turbiedad a niveles menores de 2 UNT y lograron la inactivación del 100 % de E.coli. Se encontraron diferencias significativas en la remoción de turbiedad siendo más eficiente el FM (99,2 % ± 0,4) que el FOC (97,6 % ± 1.14). Conclusiones Los dos sistemas de filtración son adecuados para el tratamiento del agua a nivel casero, cumpliendo con la reglamentación Colombiana. El FM resultó más eficiente en remoción de turbiedad y tasa de filtración; Sin embargo, cuando se tienen en cuenta aspectos como aceptabilidad social operación, mantenimiento y vida útil, el filtro de olla cerámica parece más apropiado especialmente en áreas rurales.Palabras Clave: Agua potable, Escherichia coli, filtración, tratamiento del agua, turbiedad del agua (fuente: DeCS, BIREME)

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Evaluación del tratamiento de agua para consumo humano mediante filtros Lifestraw® y Olla Cerámica

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“…Some chemicals, such as pesticides and heavy metals, because of the danger of even small amounts, endanger human health. Therefore, increased awareness in society of the consequences of contaminants in drinking water has created a demand for household water treatment systems which provide higher quality water, and therefore has caused the supply of various kinds and large number of household water treatment systems (Mwabi et al 2011;Tobin et al 1981).…”

Section: Introductionmentioning

confidence: 99%

“…Hortiguela et al (2013) in Spain in their study showed that natural zeolites are able to reduce fluoride concentration below the limit recommended by World Health Organization. Mwabi et al (2011) in South Africa studied household water treatment systems used for the production of clean water in South Africa's low-income communities. Morrisa et al (2008) in Britain evaluated the effect of water hardness on cardiovascular diseases.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of household water treatment systems used in Kerman for removal of cations and anions from drinking water

et al. 2017

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Increased awareness in society of the consequences of contaminants in drinking water has created a demand for household water treatment systems, which provide higher quality water, to spread. The aim of this study was to evaluate the performance of household water treatment systems used in Kerman for the removal of cations and anions. Various brands of home water treatment devices commonly used in Kerman were selected, with one device chosen from each brand for study. In cases in which the devices were used extensively, samples were selected with filters that had been changed in proper time, based on the device's operational instructions. The samples were selected from homes in the center and four geographical directions of Kerman. Then, sampling was conducted in three stages of input and output water of each device. For each of the samples, parameters were measured, such as chloride, sulfate, bicarbonate, calcium, magnesium, hardness, sodium, nitrate and nitrite (mg/L), temperature (°C), and pH. The average removal efficiency of different parameters by 14 brands in Kerman, which include chloride ions, sulfate, bicarbonate, calcium, magnesium, sodium, nitrites, nitrates, and total hardness, was obtained at 68.48, 85, 67, 61.21, 78.97, 80.24, 32.59, 66.83, and 69.38%, respectively. The amount of sulfate, bicarbonate, chloride, calcium, magnesium, hardness, sodium, and nitrate in the output water of household water treatment systems was less than the input water of these devices, but nitrite concentration in the output of some devices was more than the input water and showed a significant difference (p [ 0.05).

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“…Although the disinfecting abilities of sun have been known for many years, it is only during the last few decades that this idea came to practice in the regions around the equator line [1] lack of proper sanitation conditions in these areas results in contamination of the natural water bodies that are used as drinking water supplies; rare and important water entities, such as rivers or wells are rendered inutile [2]. However, the coincidence of ample solar supplies in these areas favored studies on solar purification of drinking water sources [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Solar disinfection modeling and post-irradiation response of Escherichia coli in wastewater

Giannakis

Darakas

Escalas-Cañellas

et al. 2015

Chemical Engineering Journal

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Household water treatment systems: A solution to the production of safe drinking water by the low-income communities of Southern Africa

Cited by 75 publications

References 32 publications

Evaluación del tratamiento de agua para consumo humano mediante filtros Lifestraw® y Olla Cerámica

Evaluación del tratamiento de agua para consumo humano mediante filtros Lifestraw® y Olla Cerámica

Performance evaluation of household water treatment systems used in Kerman for removal of cations and anions from drinking water

Solar disinfection modeling and post-irradiation response of Escherichia coli in wastewater

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