scholarly journals Experimental study on the analysis of nanocellulose treated water in Yola metropolis, Nigeria

2022 ◽  
Vol 17 (2) ◽  
pp. 105-114
Author(s):  
Linus N. Okoro ◽  
Bolade O. Agboola ◽  
Precious O. Yakubu
Keyword(s):  
Heavy Metal ◽  
Water Treatment ◽  
Contaminated Water ◽  
Water Parameters ◽  
Heavy Metal Concentrations ◽  
Illegal Mining ◽  
Canne À Sucre ◽  
Metal Poisoning ◽  
Before And After ◽  
Different Sources

In this study, cellulose from sugarcane bagasse and wood pulp were converted to nanocellulose and utilized to treat water from different sources within Yola Metropolis to study the efficacy of both methods. From the analysed water parameters, both nanocellulose materials were effective in treating contaminated water. They showed the capability of reducing the concentrations of the various tested parameters such as Total Dissolved Solids (TDS), Nitrate, Chloride, and Nephelometric Turbidity Units (NTU). Interestingly, analysis of the heavy metal concentrations before and after water treatment with the nanocellulose, showed very significant reduction of the heavy metals. This is encouraging as we explore more efficient methods of water treatment, in order to tackle rising cases of lead and other heavy metal poisoning in Nigeria due to illegal mining activities and deregulated industrial activities. Dans cette recherche, la cellulose de la bagasse de canne à sucre et de la pulpe de bois a été converties en nanocellulose et utilisées pour l’épuration d’eau de différentes sources au sein de Yola Metropolis afin d’étudier l’efficacité des deux méthodes. D’après les paramètres d’eau analysés avec les deux types de nanocelluloses étaient efficaces dans le traitement de l’eau contaminée. Ils ont considérablement réduit les concentrations des différents contaminants testés tels que le TDS, le nitrate, le chlorure et le NTU. En effet, l’analyse de la concentration en métaux lourds avant et après le traitement de l’eau avec la nanocellulose a montré une réduction très significative des métaux lourds. C’est une bonne chose car nous explorons des méthodes plus efficaces de traitement de l’eau, pour lutter contre l’augmentation des cas d’empoisonnement au plomb et à d’autres métaux lourds au Nigeria en raison d’activités minières illégales et d’activités industrielles non réglementées.

scholarly journals Inhibition of Activated Sludge Respiration by Heavy Metals

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Water Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Domestic Waste ◽  
Heavy Metal Concentrations ◽  
Water Treatment Plants ◽  
Different Types

Inhibition of the respiration microbial activity in the activated sludge caused by heavy metal concentrations (Cr, Cd, Cu and Ni) was studied by means of respirometric method using Strathtox respirometer (Strathkelvin Glasgow).The studied sludge samples were obtained from the two waste water treatment plants with different types of pollution (municipal waste water and domestic waste water)

scholarly journals Analysis and simulation of bioaccumulation of selected metals from contaminated soil

2018 ◽  
Vol 72 (2) ◽  
pp. 91-97
Author(s):  
Ljiljana Babincev ◽  
Miljana Markovic ◽  
Dragana Radosavljevic
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Plant Species ◽  
Relative Error ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Mean Relative Error ◽  
Adopted Model ◽  
Before And After ◽  
The Mean

The aim of this study was: I) to determine Pb, Cd and Zn concentrations in alluvial soil before and after planting selected plant species, and II) modeling of the bioaccumulation process in the examined soil, using several plant species. Soil samples were collected from the northern part of Kosovo and Metohija, and the selected plants were: a) vegetables: Lactuca sativa L. and Allium cepa L.; b) legumes: Lotus corniculatus L. and Trifolium pratense L.; and c) grasses (weed plants): Cynodon dactylon (L.) Pers. and Festuca arundinaceae Schreb. The experimental part of the work was carried out by vegetation experiments, and heavy metal concentrations were determined by potentiometric stripping analysis (PSA). The obtained results show that: I) the heavy metal concentrations in the analyzed soil were above allowed values at all measuring points; II) the selected species accumulated heavy metals to some extent. Expressed in percentages, vegetables and legumes accumulated 9?11 % Pb, 12?33 % Cd and 11?19 % Zn. Cyndon dactylon Pers. accumulated about 69 % Pb, 24?40 % Cd and 43 % Zn. Festuca arundinaceae accumulated 39?40 % Zn, 58?81 % Cd, and Pb up to 70 %. The obtained results indicate high tolerance to heavy metals, especially in the case of Festuca arundinacea. By simulation of the bioaccumulation process it has been established that the dependence of the concentration of metal ions before and after planting represents a linear regression. Coefficients of the model, for the discussed cases of heavy metals and plant species, were determined by minimization of the mean square error, and quality of model fits was evaluated by the values of the statistical indicators the RSE (Residual Standard Error) and MRE (Mean Relative Error). The closer the values of these indicators are to zero, the more accurate the model is. It can be concluded that the adopted model describes sufficiently well the dependence of concentrations of Pb and Zn in the soil before and after planting. The mean relative error (MRE) in the case of Cd is slightly higher than 7 %, which suggests that the use of a non-linear model is needed for which it is necessary to have additional samples available, which can be the subject of further research.

Heavy metal concentrations in roadside soils of Lithuania's highways

Geologija ◽  
2008 ◽  
Vol 50 (4) ◽  
pp. 237-245 ◽  
Author(s):  
Audronė Jankaitė ◽  
Pranas Baltrėnas ◽  
Agnė Kazlauskienė
Keyword(s):  
Heavy Metal ◽  
Roadside Soils ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations

Use of agro-waste (Musa paradisiaca peels) as a sustainable biosorbent for toxic metal ions removal from contaminated water

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Contact Time ◽  
Metal Ion ◽  
Equilibrium Concentration ◽  
Ion Concentration ◽  
Contaminated Water ◽  
Musa Paradisiaca ◽  
Percentage Removal ◽  
Adsorbent Dose

A study of removal of heavy metal ions from heavy metal contaminated water using agro-waste was carried out with Musa paradisiaca peels as test adsorbent. The study was carried by adding known quantities of lead (II) ions and cadmium (II) ions each and respectively into specific volume of water and adding specific dose of the test adsorbent into the heavy metal ion solution, and the mixture was agitated for a specific period of time and then the concentration of the metal ion remaining in the solution was determined with Perkin Elmer Atomic absorption spectrophotometer model 2380. The effect of contact time, initial adsorbate concentration, adsorbent dose, pH and temperature were considered. From the effect of contact time results equilibrium concentration was established at 60minutes. The percentage removal of these metal ions studied, were all above 90%. Adsorption and percentage removal of Pb2+ and Cd2+ from their aqueous solutions were affected by change in initial metal ion concentration, adsorbent dose pH and temperature. Adsorption isotherm studies confirmed the adsorption of the metal ions on the test adsorbent with good mathematical fits into Langmuir and Freundlich adsorption isotherms. Regression correlation (R2) values of the isotherm plots are all positive (>0.9), which suggests too, that the adsorption fitted into the isotherms considered.

Heavy metals accumulation in freshwater mussels (Lamellidens marginalis) as a biological monitor inhabiting in Dhanmondi Lake, Dhaka, Bangladesh.

2016 ◽  
Vol 5 (10) ◽  
pp. 4933
Author(s):  
Sabia Sultana ◽  
A. K. M. Nur Alam Siddiki ◽  
Md. Rokonujjaman ◽  
M. Niamul Naser ◽  
Abdus Salam ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soft Tissues ◽  
Freshwater Mussels ◽  
Heavy Metal Concentration ◽  
Heavy Metal Concentrations ◽  
Heavy Metals Accumulation ◽  
Manganese Zinc ◽  
Metals Accumulation ◽  
Test Level

The heavy metal concentration (e.g., Mn, Zn, Pb and Ni) were determined in soft tissues and shells of freshwater mussels (Lamellidens marginalis) at the various sites of Dhanmondi lake, Dhaka, Bangladesh between the period April, 2010 and March 2011. The heavy metal concentrations in shells and soft tissues of freshwater mussels were tended to vary significantly among sampling points and seasons in Dhanmondi Lake. Distribution of heavy metals in shell and soft tissue of Lamellidens marginalis followed the order Mn>Zn>Pb>Ni, respectively. According to the t-test, level of manganese, zinc and lead under investigation between shell and tissue showed statistically significant differences [Mn: t=-11.387; df=16; P=0.000; Zn: t=-2.590; df=16; P=0.020 and Pb: t=-2.8679; df=16; P=0.011].

Sign in / Sign up

Export Citation Format

Share Document