Cornelius Tsamo

Cornelius Tsamo
University of Maroua · Department of Chemistry, Higher Teachers' Training College

Doctor of Philosophy

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38
Publications
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159
Citations

Publications

Publications (38)
Article
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p> ABSTRACT. Tanning activity consumes high volumes of water resulting in large volumes of highly colored polluted wastewater being discharged to the environment. In this study, the discoloration of the wastewater of the local artisanal tannery using SiO<sub>2</sub> synthesized from rice husks and silica/sand mixture at different process conditions...
Article
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Metal toxicity and soil salinity at excessive levels in soils are toxic to plants. The main objective of this study was to demonstrate the effects of water salin-ity (NaCl) and heavy metal concentration on germination and seedling characteristics of maize and beans seeds. Different concentrations of NaCl (0 to 35000 mg/L) and Zn 2+ , Cu 2+ and Pb 2...
Article
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In this work, Clay-Biochar composite was synthesized from local Clay and local cotton wood, and applied for removal of glyphosate from aqueous solutions by adsorption. The Clay, Biochar and Clay-Biochar composite were characterized using X-ray diffraction, scanning electron microscope, fourier transform infrared spectroscopy, and thermal analysis....
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This study investigated the transport and mobility of Co(II) in swampy agricultural soil (SS1), soil from waste dump site (SS2) and soil from automobile repair shop site (SS3) all from Bambili-Cameroon. Column filtration experiments with Co(II) concentrations of 10, 100 and 500 mg/L were used. Breakthrough curves were used to evaluate Co(II) mobili...
Article
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Climate change and food security are among the pressing challenges facing humanity in the 21 st century. Soil organic carbon (SOC) stocks, total nitrogen (TN), texture, and bulk density (BD) are important soil properties, which control climate change. Three land-use systems (smallholder farmlands, grazing lands, and forest lands) that coexist in th...
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Background: Climate change inflicts negative consequences on food production especially on smallholder farms needed to achieve food security. Sustainable farming techniques seem to be the bridge between climate change and food security. Aims: To evaluate knowledge and practices of sustainable agriculture within smallholder farmers in the Bamenda Hi...
Article
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In this study, the efficiencies of the use of rice husk, cypress, and Eucalyptus leaves biocoagulants as alternative to alum as chemical coagulant in reducing turbidity and stabilizing the pH of slaughterhouse wastewater and three other local drinking water sources were investigated. Two systems were used: one involving individual coagulants and th...
Article
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Sustainable agricultural innovations are crucial to boost food quality and quantity needed to feed Africa's doubling population (PopulationPyramid.net) faced with complex challenges such as climate change, biodiversity conservation, emerging diseases, urbanization pressures, etc. These challenges hinder the successful implementation of Africa's age...
Conference Paper
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Waste electrical and electronic equipment (WEEE) or e-waste refers to all devices that have reached the end of their life and are no longer of value to their owners. They contain bothtoxic substances and valuable components. The practice of recycling e-waste in repair workshopscan help limit their impact on the environment and can also serve as a s...
Article
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A natural soil rich in allophane was tested as adsorbent for the removal of phosphate ions from aqueous solution. The soil was characterized using particle size distribution, EDS, FTIR, XRD, TGA, and Nitrogen adsorption-desorption analyses. The effects of contact time, pH, initial concentration, adsorbent dose, and temperature and co-ions on adsorp...
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Global annual production of rice husk is approximately 120 million tons. It doesn’t easily biodegrade, resulting in disposal problems. This paper therefore, investigated the use of silica obtained from the burning of the raw rice husk in open air (RHSA) and in a Muffle Furnace at 540 °C (RHSO). The efficiency of the two silica samples in removing R...
Article
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This paper reports the production of ceramics using CRT (cathode ray tube) glass and red mud by varying the amount of waste glass and firing from 700-950 °C. The raw materials were characterized using chemical composition, IR (infra-red spectroscopy), XRD (X-ray diffraction), DSC-TGA (differential scanning calorimetry-thermo gravimetric analyses) a...
Article
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This study is aimed at evaluating the efficiency of hydrochloric acid, modified red mud in removing diclofenac (DCF) from aqueous solution. Red mud produced was treated with 2.25 M HCl, noted RMH. Batch experiments were used to determine the effects of time of stirring/initial concentration, pH, adsorbent dose and temperature on the efficiency of D...
Article
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Water pollution by heavy metals like Co(II) is particularly of concern because of their persistence in the environment, toxicity, and ability to bioaccumulate in organisms. In this study, the influence of contact time at three initial concentration, pH, adsorbent dose, temperature, and kinetics, thermodynamics, and one-, two-, and three-parameter i...
Article
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The quality of borehole water of Maroua was evaluated using physico-chemical properties and treated using Fe/sand mixture of different composition and 100% sand in the reactive zone column filtration. While the pH, iron and chloride amounts were generally within WHO standards other measured parameters were generally above these standards. The Fe/sa...
Article
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This paper presents the variation in physico-chemical properties of a local Maroua tannery effluent before and after a flocculation treatment. Tanning is a process that consists of the transformation of the animal skin into leather by using different baths which contain many chemical reagents and produces high quantity of liquid and solid waste. Th...
Article
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A comparative study on the discoloration of methylene blue (MB)and slaughter house waste water (SHW)using maize cob biochar produced by a laboratory constructed burning chamber was undertaken in this study. Contact time, pH, initial MB and SHW concentrations, mass of biochar and temperature were used to evaluate the efficiency of the biochar in dis...
Article
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The study is aimed at evaluating the pollution of Lake Maga (Cameroon), the main water source for agricultural, livestock and domestic activities of the population of the subdivision. The physico-chemical properties of water and sediments from four different locations covering approximately the entire length of the Lake were assessed. Two of these...
Article
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Diclofenac (DCF) has been detected in different water sources around the world with potential toxic effects. There exist many waste and low-cost available materials that can be used as permeable reactive barrier (PRB) materials. This work was aimed at investigating the impact of diclofenac removal using metallic iron, a waste material as PRB reacti...
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Excess amount of phosphate can lead to eutrophication of the receiving wastewaters with potential risk to aquatic organisms and human health. The removal of phosphate ions from aqueous solution using waste from the production of millet derived drink was investigated. The material has good adsorbent properties as evident from determination of elemen...
Article
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Due to their chemical and mineralogical properties bauxites are composites with multiple applications. In this work, the properties of bauxite collected from Minim-Martap and its extracted alumina were evaluated. Alumina was extracted by adapting the Bayer process at laboratory scale while the characteristics of bauxite and alumina were variably ch...
Article
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This study involved the investigation of using untreated red mud, acid activated red mud and combined acid and heat treated red mud as Permeable Reactive Barrier (PRB) material by firstly equilibrating the different red mud samples alone and in the presence of some local soils, sand and metallic iron with methylene blue (MB) for up to 60 days. The...
Article
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The present research work aimed to study some of the important physicochemical parameters of wastewater effluents obtained from Maroua cotton processing plant namely "SODECOTON". The effluents were studied from June 2016 to August 2017. A preliminary investigation was carried out on the source of water used by the plant and management of its wastew...
Article
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The effects of Fe0 pre-corrosion by water, bicarbonate, chloride, phosphate and sulfate on the efficiency of Fe0 systems for water treatment were investigated. Batch experiments were conducted for a total duration of 72 days with MB (Methylene Blue) and MO (Methyl Orange). The efficiency of used Fe0 was assessed by characterizing the extent of MB a...
Article
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The present work utilized raw red mud and hydrochloric acid-modified red mud (RMA) as adsorbents for Cr(VI), Cu(II) and Pb(II) removal from aqueous solution. pH, X-ray fluorescence, infrared spectrometry and porosity characteristics using gas adsorption were performed for characterization of adsorbents. Batch experiments were conducted to determine...
Article
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Medical waste unlike other ordinary waste does not only poses serious health risk to the handlers, health staff and patients but also to the environment. Waste management in general and particularly medical waste from health care facilities is highly neglected in developing countries due to lack of trained personnel and lack of funds to adopt appro...
Article
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Bauxite produces 60-120 million tons of toxic red mud annually during its processing to alumina. Thus, in this work, the modeling of the bauxite processing process to reduce quantity of red mud produced and with low alumina content was envisaged. Bauxite from Minim-Martap was processed by adapting the Bayer process under laboratory conditions. This...
Article
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The pollution of lake Mofole, the main water source for the entire village was evaluated by conducting a field study on surrounding population, evaluating the physico-chemical properties of water and sediments from the lake and nearby well water and identifying the presence of heavy metals on the lake and nearby well waters, lake sediments and on f...
Article
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Red mud prepared in the laboratory was activated using hydrochloric acid with concentrations from 2-4 mol/L, heat at 900°C and combined acid and heat at 900°C, and the respective yields evaluated. The physico-chemical properties of these samples were determined using pH, EC, XRF, XRD, SEM, TGA-DTA analyses and textural properties (isotherm type, BE...
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This work involves the quantification, estimation of water content and re-uses options of millet residue in Ngaoundere, Garoua and Maroua with the aim of finding better management options for this waste. Thus, a survey of 22 quarters that constitute the selling points of millet beer locally called «bil-bil» in these towns was done. Here questionnai...
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Researchers have been developing low-cost bio-adsorbents as alternative materials to conventional activated carbons for water treatment over the years. New materials are used either ‘as is’ or slightly chemically or physically modified. Their efficiency is mostly characterized in batch experiments with parameters like (i) adsorption capacity (mg/g)...
Article
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In Cameroon like many African countries, awareness on e-waste is very low despite increasing dependence on modern technologies that generate e-waste. This paper presents a case study of Maroua town Cameroon. A survey of 33 EEE repair workshops was conducted, the regional government service in charge of environment, local councils and HYSACAM, a pri...

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