Abstract
Objective: To determine turbidity removal efficiency of raw water samples, by using Multi-Stage Filtration technology and complemented with natural coagulants. Methods/Analysis: Water samples were taken from the Sinu River. A pilot plant was set up in laboratory, and treatability tests were carried out on samples with different scenarios. Findings: The best treatment for raw water was obtained when 240 m3 m-2d-1 rates were applied for 200 NTU initial turbidity. There were no alterations in pH and water alkalinity after treatability tests. Application: This raw water treatment technology is very useful and appropriate to be applied in rural areas with difficult access and scarce economic resources, since its simplicity does not require costly inputs or maintenance. Keywords: Activated Carbon, Moringa oleifera, Multi-Stage Filtration, Natural Coagulants, Water Treatment
Highlights
Quality Risk Index of Water -IRCA1 is used in Colombia as an indicator to determine water quality, based on degree of risk of diseases occurrence related to non-compliance with physical, chemical and microbiological characteristics of water for human c onsumption
Water samples for this study were taken from the Sinu River, from the irrigation channel located in the Mocari neighborhood, city of Monteria
Water alkalinity does not interfere with efficiency of natural coagulants such as extracts of Moringa oleifera seed[16]
Summary
Quality Risk Index of Water -IRCA1 is used in Colombia as an indicator to determine water quality, based on degree of risk of diseases occurrence related to non-compliance with physical, chemical and microbiological characteristics of water for human c onsumption. In the c ountry, large and medium urban centers receive a supply of decent quality water, without risk or minimal risk to human health and; as urban size decreases and rurality increases; water quality worsens, increasing risk level[2]. In this way, in smaller municipalities and rural areas, IRCA is predominantly high and in some cases s anitarily unviable. In contrast, 31.25% of the departments had a high-risk level in the rural area[3] This situation is mainly due because in rural population centers infrastructure for provision of potable water and basic sanitation, is built without a technical and financial analysis to allow choosing the most appropriate alternative to fit demand features. Infrastructure is neither operated nor used[4]
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