Browsing by Author "Madu, P.C."

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    CHARACTERIZATION OF ACTIVATED CARBON DERIVED FROM MILLET CHAFF AND ITS COMPARISON WITH COMMERCIAL ACTIVATED CARBON
    (Department of Chemistry, Nasarawa State University, Keffi, 2021-03-09) Audu, Saratu Stephen; Shuaibu, B.S.; Madu, P.C.
    his work has examined the characteristics of activated carbon produced from millet chaff and a commercial activated carbon. The chaff is the waste generated from processing millet to produce pap (akamu) which is used as a weaning food in most families. Activated carbon' was produced from millet chaff using chemical and physical methods. The chemical activation was done ' with 1M phosphoric acid and was carbonised in a furnace at 6oo°C for an hour. The formed activated carbon was removed, rinsed with 0.1MHCI, washed with distilled water arid dried to obtain chemical activated carbon (ChAC). Direct heating of the chaff in the furnace at 400°Cfor 2 hours produced physical activated carbon (PAC). The produced activated carbons and a commercial activated carbon (CAC) were characterised for: pH, moisture content, ash content, pore volume, porosity and bulk density using standard methods. The results
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    The Impact of Discharged Automotive Oil on Heavy Metal Concentrations on Well Water around Mechanic Workshops in Nasarawa West Senatorial District, Nasarawa State.
    (Department of Chemistry, Faculty Of Natural And Applied Sciences, Nasarawa State University, Keffi, 2021-08-16) Tukura, Bitrus Wokhe; Yahaya, U.; Madu, P.C.; Saleh, Borori; Gav, L.B.
    The concentration of heavy metals in ground water in Nasarawa West Senatorial District was analyzed using a standard method. A total of one hundred and forty two samples from different auto-mechanic workshops and control sites were collected at random between July-September representing wet (rainy) season and February-March representing dry season were analyzed for both heavy metals (Cobalt, Zinc, Cadmium, Copper, Nickel, Manganese, Chromium, and Lead) and physicochemical parameters using standard methods. Under ground water and used/unused engine oil were collected and analyzed using Atomic Absorption Spectrophotometers (AAS).The results of the heavy metal concentrations in water from all the sample locations and physiochemical parameters of water samples were presented in tables. Results generally showed elevation in metal ion concentrations around automobile workshops investigated vis-a-vis the impact of the automobile workshops in metal concentrations. The values obtained from the analysis showed that most of the values of metal concentrations and the physicochemical parameters were higher in the dry season than that of the rainy season. This may be as a result of percolation, dissolution or diffusion which may likely occur.