Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment

This study aimed at designing, prototyping and testing the effectiveness of a solar disinfection system for improved rural household water treatment. The system was constructed using local materials. The effectiveness and efficiency of the system to kill microorganisms were determined by using conta...

Full description

Bibliographic Details
Main Authors: Russel C.G. Chidya, Alick K. Munthali, Isaac Chitedze, Maxon L. Chitawo
Format: Article
Language:English
Published: SDEWES Centre 2021-12-01
Series:Journal of Sustainable Development of Energy, Water and Environment Systems
Subjects:
Online Access: http://www.sdewes.org/jsdewes/pid8.0369
_version_ 1819006343129858048
author Russel C.G. Chidya
Alick K. Munthali
Isaac Chitedze
Maxon L. Chitawo
author_facet Russel C.G. Chidya
Alick K. Munthali
Isaac Chitedze
Maxon L. Chitawo
author_sort Russel C.G. Chidya
collection DOAJ
description This study aimed at designing, prototyping and testing the effectiveness of a solar disinfection system for improved rural household water treatment. The system was constructed using local materials. The effectiveness and efficiency of the system to kill microorganisms were determined by using contaminated raw water samples collected from rural areas. The prototype raised the bottle water temperature from 24.3 to 66 °C. After 3 hours of exposure to intense sunlight, the water samples registered no total and faecal coliform counts in line with allowable drinking water limits by Malawi Standards and the World Health Organization. When loaded with 12 L of the contaminated water, the system scored a 10.2 % efficiency. The prototype reached disinfecting temperature faster (80 minutes) under intense sunlight conditions and worked effectively well with water of low turbidity levels. The prototype was cost-effective and easy to use, hence to be promoted for improved rural household water treatment.
first_indexed 2024-12-21T00:07:10Z
format Article
id doaj.art-0057e7f790fc4f4e8bb0cb96e9379f7c
institution Directory Open Access Journal
issn 1848-9257
language English
last_indexed 2024-12-21T00:07:10Z
publishDate 2021-12-01
publisher SDEWES Centre
record_format Article
series Journal of Sustainable Development of Energy, Water and Environment Systems
spelling doaj.art-0057e7f790fc4f4e8bb0cb96e9379f7c2022-12-21T19:22:25ZengSDEWES CentreJournal of Sustainable Development of Energy, Water and Environment Systems1848-92572021-12-019411610.13044/j.sdewes.d8.03691080369Design and Efficacy of Solar Disinfection System for Improved Rural Household Water TreatmentRussel C.G. Chidya0Alick K. Munthali1Isaac Chitedze2Maxon L. Chitawo3 Department of Water and Sanitation, Mzuzu University, P/Bag 201, Luwinga, Mzuzu, Malawi Department of Water and Sanitation, Mzuzu University, P/Bag 201, Luwinga, Mzuzu, Malawi Department of Energy Systems, Mzuzu University, P/Bag 201, Luwinga, Mzuzu, Malawi Department of Energy Systems, Mzuzu University, P/Bag 201, Luwinga, Mzuzu, Malawi This study aimed at designing, prototyping and testing the effectiveness of a solar disinfection system for improved rural household water treatment. The system was constructed using local materials. The effectiveness and efficiency of the system to kill microorganisms were determined by using contaminated raw water samples collected from rural areas. The prototype raised the bottle water temperature from 24.3 to 66 °C. After 3 hours of exposure to intense sunlight, the water samples registered no total and faecal coliform counts in line with allowable drinking water limits by Malawi Standards and the World Health Organization. When loaded with 12 L of the contaminated water, the system scored a 10.2 % efficiency. The prototype reached disinfecting temperature faster (80 minutes) under intense sunlight conditions and worked effectively well with water of low turbidity levels. The prototype was cost-effective and easy to use, hence to be promoted for improved rural household water treatment. http://www.sdewes.org/jsdewes/pid8.0369 drinking water; household water treatment; solar disinfection system; thermal inactivation; photo oxidative disinfection
spellingShingle Russel C.G. Chidya
Alick K. Munthali
Isaac Chitedze
Maxon L. Chitawo
Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
Journal of Sustainable Development of Energy, Water and Environment Systems
drinking water; household water treatment; solar disinfection system; thermal inactivation; photo oxidative disinfection
title Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
title_full Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
title_fullStr Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
title_full_unstemmed Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
title_short Design and Efficacy of Solar Disinfection System for Improved Rural Household Water Treatment
title_sort design and efficacy of solar disinfection system for improved rural household water treatment
topic drinking water; household water treatment; solar disinfection system; thermal inactivation; photo oxidative disinfection
url http://www.sdewes.org/jsdewes/pid8.0369
work_keys_str_mv AT russelcgchidya designandefficacyofsolardisinfectionsystemforimprovedruralhouseholdwatertreatment
AT alickkmunthali designandefficacyofsolardisinfectionsystemforimprovedruralhouseholdwatertreatment
AT isaacchitedze designandefficacyofsolardisinfectionsystemforimprovedruralhouseholdwatertreatment
AT maxonlchitawo designandefficacyofsolardisinfectionsystemforimprovedruralhouseholdwatertreatment