Assessment of environmental impact on air quality by cement industry and mitigating measures: A case study
Environmental Monitoring and Assessment
Chemical Engineering Programme, Abubakar Tafawa Balewa University, Bauchi P. M. B. 0248, Nigeria
In this study, environmental impact on air quality was evaluated for a typical Cement Industry in Nigeria. The air pollutants in the atmosphere around the cement plant and neighbouring settlements were determined using appropriate sampling techniques. Atmospheric dust and CO2 were prevalent pollutants during the sampling period; their concentrations were recorded to be in the range of 249-3,745 mg/m3 and 2,440-2,600 mg/m3, respectively. Besides atmospheric dust and CO2, the air pollutants such as NOx, SOx and CO were in trace concentrations, below the safe limits approved by FEPA that are 0.0062-0.093 mg/m 3NOx, 0.026 mg/m3SOx and 114.3 mg/m3 CO, respectively. Some cost-effective mitigating measures were recommended that include the utilisation of readily available and low-cost pozzolans material to produce blended cement, not only could energy efficiency be improved, but carbon dioxide emission could also be minimised during clinker production; and the installation of an advance high-pressure grinding rolls (clinker-roller-press process) to maximise energy efficiency to above what is obtainable from the traditional ball mills and to minimise CO2 emission from the power plant. © 2008 Springer Science+Business Media B.V.
Air pollutants; Atmosphere; Atmospheric dust; Blended cement; Carbon dioxide emissions; Clinker production; High-pressure grinding; Mitigating measures; Nigeria; Press process; Sampling period; Sampling technique; Trace concentrations; Air quality; Ball milling; Ball mills; Carbon dioxide; Cement industry; Cement plants; Cements; Dust; Energy efficiency; Environmental impact; Environmental impact assessments; Global warming; Pollution; Carbon monoxide; carbon dioxide; carbon monoxide; cement; nitric oxide; sulfur oxide; air quality; anthropogenic source; atmospheric pollution; carbon dioxide; carbon emission; cement; concentration (composition); dust; energy efficiency; environmental impact assessment; industrial emission; pollution policy; sampling; air pollutant; air quality; air sampling; article; atmosphere; case study; cement industry; controlled study; dust; environmental impact assessment; Nigeria; Air Pollutants; Carbon Dioxide; Construction Materials; Environmental Monitoring; Nigeria; Nigeria