Decay of Free Residual Chlorine in Wells Water of Northern Brazil
The concentration of chlorine in water declines as it reacts with various substances, causing decay of the residual free chlorine until its total consumption. In light of the typical characteristics of the water from protected dug wells and tube wells, this study aimed to evaluate the decay kinetics...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/7/992 |
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| author | Taise Ferreira Vargas Célia Ceolin Baía Tatiana Lemos da Silva Machado Caetano Chang Dórea Wanderley Rodrigues Bastos |
| author_facet | Taise Ferreira Vargas Célia Ceolin Baía Tatiana Lemos da Silva Machado Caetano Chang Dórea Wanderley Rodrigues Bastos |
| author_sort | Taise Ferreira Vargas |
| collection | DOAJ |
| description | The concentration of chlorine in water declines as it reacts with various substances, causing decay of the residual free chlorine until its total consumption. In light of the typical characteristics of the water from protected dug wells and tube wells, this study aimed to evaluate the decay kinetics of free chlorine in the water of alternative individual supply (AIS) solutions used in the city of Porto Velho in the Brazilian Amazon region. The free chlorine decay constant in the water was evaluated by “bottle tests,” applying a first-order model. According to the results, the type of well and initial chlorine concentration significantly influences the free chlorine decay speed. The water samples from the tubular wells had lower chlorine demand levels, attributed to their better water quality. The simulation of the residual chlorine decay in the different supply sources is an important tool to support safe disinfection processes. |
| first_indexed | 2024-03-10T12:36:43Z |
| format | Article |
| id | doaj.art-676bc891371746d1a55017a7a63fc2da |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T12:36:43Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-676bc891371746d1a55017a7a63fc2da2023-11-21T14:11:40ZengMDPI AGWater2073-44412021-04-0113799210.3390/w13070992Decay of Free Residual Chlorine in Wells Water of Northern BrazilTaise Ferreira Vargas0Célia Ceolin Baía1Tatiana Lemos da Silva Machado2Caetano Chang Dórea3Wanderley Rodrigues Bastos4Environmental Biogeochemistry Laboratory (WCP), Federal University of Rondônia (UNIR), Porto Velho-RO 76801-058, BrazilEnvironmental Biogeochemistry Laboratory (WCP), Federal University of Rondônia (UNIR), Porto Velho-RO 76801-058, BrazilEnvironmental Biogeochemistry Laboratory (WCP), Federal University of Rondônia (UNIR), Porto Velho-RO 76801-058, BrazilDepartment of Civil Engineering, University of Victoria, Victoria, BC V8P 5C2, CanadaEnvironmental Biogeochemistry Laboratory (WCP), Federal University of Rondônia (UNIR), Porto Velho-RO 76801-058, BrazilThe concentration of chlorine in water declines as it reacts with various substances, causing decay of the residual free chlorine until its total consumption. In light of the typical characteristics of the water from protected dug wells and tube wells, this study aimed to evaluate the decay kinetics of free chlorine in the water of alternative individual supply (AIS) solutions used in the city of Porto Velho in the Brazilian Amazon region. The free chlorine decay constant in the water was evaluated by “bottle tests,” applying a first-order model. According to the results, the type of well and initial chlorine concentration significantly influences the free chlorine decay speed. The water samples from the tubular wells had lower chlorine demand levels, attributed to their better water quality. The simulation of the residual chlorine decay in the different supply sources is an important tool to support safe disinfection processes.https://www.mdpi.com/2073-4441/13/7/992drinking water qualitydisinfectionchlorine kineticsBrazilian Amazonfree chlorination |
| spellingShingle | Taise Ferreira Vargas Célia Ceolin Baía Tatiana Lemos da Silva Machado Caetano Chang Dórea Wanderley Rodrigues Bastos Decay of Free Residual Chlorine in Wells Water of Northern Brazil Water drinking water quality disinfection chlorine kinetics Brazilian Amazon free chlorination |
| title | Decay of Free Residual Chlorine in Wells Water of Northern Brazil |
| title_full | Decay of Free Residual Chlorine in Wells Water of Northern Brazil |
| title_fullStr | Decay of Free Residual Chlorine in Wells Water of Northern Brazil |
| title_full_unstemmed | Decay of Free Residual Chlorine in Wells Water of Northern Brazil |
| title_short | Decay of Free Residual Chlorine in Wells Water of Northern Brazil |
| title_sort | decay of free residual chlorine in wells water of northern brazil |
| topic | drinking water quality disinfection chlorine kinetics Brazilian Amazon free chlorination |
| url | https://www.mdpi.com/2073-4441/13/7/992 |
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