Open AccessImpact of Water Treatment Processes on Selected Heavy Metals Concentrations in Drinking Water Within Katsina Metropolis
Author(s) -
A. A. Yusuf,
Nuraddeen Abdurrahman,
Kamaladdeen Abdullahi,
A. Shehu
Publication year - 2020
Publication title -
international research journal of science and technology
Language(s) - English
Resource type - Journals
ISSN - 2707-3955
DOI - 10.46378/irjst.2020.020106
Subject(s) - raw water , tap water , detection limit , atomic absorption spectroscopy , chemistry , heavy metals , environmental chemistry , environmental engineering , environmental science , chromatography , physics , quantum mechanics
The research focused on the impact of water treatment processes on selectedheavy metals concentrations in drinking water within Katsina metropolis.Water samples were collected from taps, sachets and Ajiwa dam raw watersand analyzed for Pb, Cu, Fe, Ni, Mn, Zn and Mg using atomic absorptionspectrophotometer (AAS). The solid residues filtered from the treated sampleswere also analyzed using x-ray fluorescence (XRF) method. The resultobtained from the water analysis shows that Cu concentration determinedbetween (0.862-17.232) µg/L with the highest concentration below WHO limitin Ajiwa dam raw water, Pb concentration determined between (0.000-109.63)µg/L with the highest concentration above WHO limit in Ajiwa dam raw water,Ni concentration was detected in almost all the water samples, with theconcentration between (0.000-0.72) µg/L, all the concentrations were belowWHO limit, Mn concentration determined between (16.554-66.234) µg/L withthe highest concentration within WHO limit in Ajiwa dam raw water, Znconcentration determined between (47.286-58.122) µg/L with the highestconcentration within WHO limit in tap water, Mg concentration determinedbetween (102.5-213.77) µg/L with the highest concentration within WHO limitin Ajiwa dam raw water. While the amount(%) of isolated element shows thatSi(42.51), O(25.39), K(0.24), Ca(1.16), Ti(0.16), Mn(0.04), Fe(1.19), Cu(0.02),Zn(0.009), Ag(0.40), Ba(0.31), Ce(0.03), Nd(0.002), Eu(0.03), Re(0.04),Cl(1.14) and S(0.22) with Silicon with the highest percentage and Neodymiumwith the least percentage value. Analysis of variance (ANOVA) shows that Pb(p-value 0.000), Cu (p-value 0.000), Fe (p-value 0.000), Ni (p-value 0.490),Mn (p-value 0.007), Zn (p-value 0.000) and Mg (p-value 0.046). This resultsshow that the concentrations of heavy metals analyzed were either removed ordrastically reduced to tolerable level or standard limit set by WHO for safedrinking water through series of water treatment processes and this render thewater in the areas safe for drinking for now.