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    Statistical testing of input factors in the carbonation of brine impacted fly ash 

    Muriithi, Grace; Gitari, Wilson; Petrik, Leslie (Taylor & Francis, 2012)
    A D-optimal design was applied in the study of input factors: temperature, pressure, solid/liquid (S/L) ratio and particle size and their influence on the carbonation of brine impacted fly ash (FA) determined. Both ...
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    Use of coal fly ash as a catalyst in the production of biodiesel 

    Babajide, Omotola; Petrik, Leslie; Musyoka, Nicholas; Amigun, Bamikole; Ameer, Farouk (Slovnaft VÚRUP, 2010)
    South Africa is largely dependent on the combustion of coal for electricity production; Eskom’s coalfired power stations consume approximately 109 million tons of coal per annum, producing around 25 million tons of ash, ...
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    Fate of sulphate removed during the treatment of circumneutral mine water and acid mine drainage with coal fly ash: Modelling and experimental approach 

    Madzivire, Godfrey; Gitari, Wilson; Vadapalli, V.R. Kumar.; Ojumu, Tunde V.; Petrik, Leslie (Elsevier, 2011)
    The treatment of acid mine drainage (AMD) and circumneutral mine water (CMW) with South African coal fly ash (FA) provides a low cost and alternative technique for treating mine wastes waters. The sulphate concentration ...
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    Carbonation of brine impacted fractionated coal fly ash: Implications for CO2 sequestration 

    Muriithi, Grace; Gitari, Wilson; Petrik, Leslie; Ndungu, Patrick (Elsevier, 2011)
    Coal combustion by-products such as fly ash (FA), brine and CO2 from coal fired power plants have the potential to impact negatively on the environment. FA and brine can contaminate the soil, surface and ground water through ...
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    Novel zeolite Na-X synthesized from fly ash as a heterogeneous catalyst in biodiesel production 

    Babajide, Omotola; Petrik, Leslie; Musyoka, Nicholas; Ameer, Farouk (Elsevier, 2012)
    Several studies have been carried out on the production of biodiesel using different heterogeneous catalysts but this study has been able to demonstrate the prospect of utilizing South African class F fly ash as a raw ...
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    Synthesis of zeolites Na-P1 from South African coal fly ash: effect of impeller design and agitation 

    Mainganye, Dakalo; Ojumu, Tunde V.; Petrik, Leslie (MDPI, 2013)
    South African fly ash has been shown to be a useful feedstock for the synthesis of some zeolites. The present study focuses on the effect of impeller design and agitation rates on the synthesis of zeolite Na-P1 which are ...
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    Waste minimization protocols for the process of synthesizing zeolites from South African coal fly ash 

    Du Plessis, Pieter W.; Ojumu, Tunde V.; Petrik, Leslie (MDPI, 2013)
    Production of a high value zeolite from fly ash has been shown to be an avenue for the utilization of South African fly ash which presently constitutes a huge disposal problem. The synthesis of zeolites Na-P1 and analcime ...

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    AuthorPetrik, Leslie (7)Gitari, Wilson (3)Ojumu, Tunde V. (3)Ameer, Farouk (2)Babajide, Omotola (2)Muriithi, Grace (2)Musyoka, Nicholas (2)Amigun, Bamikole (1)Du Plessis, Pieter W. (1)Madzivire, Godfrey (1)... View MoreSubject
    Fly ash (7)
    Brine (2)Heterogeneous catalyst (2)Acid mine drainage (1)Agitation (1)ANOVA (1)Atomic emission spectrometry (1)Biodiesel (1)Carbonation efficiency (1)Chittick test (1)... View MoreDate Issued2013 (2)2012 (2)2011 (2)2010 (1)

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