The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform

Agostinho Benta - One of the best experts on this subject based on the ideXlab platform.

  • economic and Environmental Impact Study of warm mix asphalt compared to hot mix asphalt
    Journal of Cleaner Production, 2016
    Co-Authors: Ana Almeidacosta, Agostinho Benta
    Abstract:

    For more than two decades warm mix asphalt has been the major research challenge for the production of Environmentally sustainable asphalt pavements. The primary objective of their implementation is to reduce fuel consumption and pollutant emissions in order to improve Environmental quality and decrease production costs. However, because the economic and Environmental benefits have not always been properly evaluated, these technologies are very far from being explored at their full potential, mainly due to the idea that the additives are expensive. Thus, in this Study, in order to assess the potential economic and Environmental advantages of the application of these mixtures, a warm high modulus asphalt concrete was produced with a chemical additive and a warm rough asphalt concrete was produced with an organic additive. For both cases, the maximum theoretical cost of additive was evaluated. The results of this Study show that the maximum cost obtained ensures that the production of the respective warm mixture is economically advantageous. The corresponding reduction in carbon dioxide emissions was also assessed. Both studied mixtures have shown significant reduction of energy consumption and, consequently, reduction of CO2 emissions. It is possible to conclude that all these Environmental benefits could be achieved with economical saves and guaranteeing a good performance of the pavements.

Ana Almeidacosta - One of the best experts on this subject based on the ideXlab platform.

  • economic and Environmental Impact Study of warm mix asphalt compared to hot mix asphalt
    Journal of Cleaner Production, 2016
    Co-Authors: Ana Almeidacosta, Agostinho Benta
    Abstract:

    For more than two decades warm mix asphalt has been the major research challenge for the production of Environmentally sustainable asphalt pavements. The primary objective of their implementation is to reduce fuel consumption and pollutant emissions in order to improve Environmental quality and decrease production costs. However, because the economic and Environmental benefits have not always been properly evaluated, these technologies are very far from being explored at their full potential, mainly due to the idea that the additives are expensive. Thus, in this Study, in order to assess the potential economic and Environmental advantages of the application of these mixtures, a warm high modulus asphalt concrete was produced with a chemical additive and a warm rough asphalt concrete was produced with an organic additive. For both cases, the maximum theoretical cost of additive was evaluated. The results of this Study show that the maximum cost obtained ensures that the production of the respective warm mixture is economically advantageous. The corresponding reduction in carbon dioxide emissions was also assessed. Both studied mixtures have shown significant reduction of energy consumption and, consequently, reduction of CO2 emissions. It is possible to conclude that all these Environmental benefits could be achieved with economical saves and guaranteeing a good performance of the pavements.

Ramesh Rayudu - One of the best experts on this subject based on the ideXlab platform.

  • comprehensive techno economic and Environmental Impact Study of a localised photovoltaic power system pps for off grid communities
    Energy Conversion and Management, 2016
    Co-Authors: Daniel Akinyele, Ramesh Rayudu
    Abstract:

    Abstract This Study presents detailed techno-economic and Environmental Impact assessment of a photovoltaic power system (PPS) for a small off-grid community. The PPS is designed to meet a community’s load demand of ∼63,900 kWh, with an annual load growth of 1% over a 25-year project lifespan. Its performance is assessed in terms of the power output, energy production, yield and losses, and the efficiency. Furthermore, detailed battery state of charge (SoC) and reliability analysis is presented. The paper uses the life cycle evaluation technique to analyse the system’s economic and Environmental performances, using Bununu community in Bauchi State, Nigeria as a case Study. Results show that the loss of energy probability and the availability of 0.44–1.09% and 98.91–99.56%, respectively, can be achieved with PPS sizes of 50–62.7 kW. In addition, the proposed PPS’s life cycle costs range from ∼48 to 49.5% of the values obtained for the diesel plant. The PPS’s life cycle emission rate is 50 gCO 2 -eq/kWh, which is ∼7.9–8.7% of the diesel plant’s emission rates. The proposed PPS’s GWP ranges from 4307 to 5400 kgCO 2 -eq. These outputs are evaluated by comparing them with some existing results in the literature, and can be useful for planning stand-alone PPS for remote locations around the world.

S. M. A. Islam - One of the best experts on this subject based on the ideXlab platform.

  • An Environmental Impact Study of Jamuna Urea Fertilizer Factory at Tarakandi in Jamalpur with Radiological Indices
    2020
    Co-Authors: M. A. Samad, D. Paul, S. M. A. Islam
    Abstract:

    The activity concentrations of 226 Ra, 232 Th and 40 K have been determined in solid and liquid samples collected from the Jamuna Urea Fertilizer Factory, Tarakandi, Jamalpur, Bangladesh. Six different types of samples, namely, i) the liquid waste water stored inside the factory ii) water sample near the liquid waste disposal point of Jamuna river iii) liquid-waste-mixed soil iv) normal soil adjacent to the factory v) the final product (Urea) and vi) urea dust of the factory have been analyzed by gamma spectrometric technique using a high purity germanium (HPGe) detector of 40% relative efficiency. The activity concentration of 226 Ra was determined from the average concentrations of the 214 Pb and 214 Bi decay products, the activity concentration of 232 Th was determined from the average concentrations of 208 Tl and 228 Ac, whereas the concentration of 40 K was measured directly. The analysis of the liquid waste samples showed that the average activity concentrations of 226 Ra and 232 Th were 3.64 ± 0.72 and 12.94 ± 2.02 Bq/L, respectively and no 40 K was detected in any of the samples. In the liquid-waste-mixed soil samples the average value of activity concentrations of 226 Ra, 232 Th and 40 K were 21.45 ± 3.19, 63.00 ± 8.10 and 311.97 ± 90.93 Bq/kg, respectively whereas in the normal soil the values were 20.97 ± 3.56, 61.77 ± 8.93 and 645.48 ± 103.62 Bq/kg, respectively. Considering the stored wastes as a part of the ambient environment of the factory, radium equivalent activity, radiation hazard index and external annual effective dose to the worker and the public due to these wastes were calculated and compared with the world average values.

  • An Environmental Impact Study of Jamuna Urea Fertilizer Factory at
    Journal of Environmental Science and Natural Resources, 2012
    Co-Authors: M. A. Samad, D. Paul, S. M. A. Islam
    Abstract:

    The activity concentrations of 226 Ra, 232 Th and 40 K have been determined in solid and liquid samples collected from the Jamuna Urea Fertilizer Factory, Tarakandi, Jamalpur, Bangladesh. Six different types of samples, namely, i) the liquid waste water stored inside the factory ii) water sample near the liquid waste disposal point of Jamuna river iii) liquid-waste-mixed soil iv) normal soil adjacent to the factory v) the final product (Urea) and vi) urea dust of the factory have been analyzed by gamma spectrometric technique using a high purity germanium (HPGe) detector of 40% relative efficiency. The activity concentration of 226 Ra was determined from the average concentrations of the 214 Pb and 214 Bi decay products, the activity concentration of 232 Th was determined from the average concentrations of 208 Tl and 228 Ac, whereas the concentration of 40 K was measured directly. The analysis of the liquid waste samples showed that the average activity concentrations of 226 Ra and 232 Th were 3.64 ± 0.72 and 12.94 ± 2.02 Bq/L , respectively and no 40 K was detected in any of the samples. In the liquid-waste-mixed soil samples the average value of activity concentrations of 226 Ra, 232 Th and 40 K were 21.45 ± 3.19, 63.00 ± 8.10 and 311.97 ± 90.93 Bq/kg, respectively whereas in the normal soil the values were 20.97 ± 3.56, 61.77 ± 8.93 and 645.48 ± 103.62 Bq/kg, respectively. Considering the stored wastes as a part of the ambient environment of the factory, radium equivalent activity, radiation hazard index and external annual effective dose to the worker and the public due to these wastes were calculated and compared with the world average values. DOI: http://dx.doi.org/10.3329/jesnr.v4i2.10131 J. Environ. Sci. & Natural Resources, 4(2): 27-33, 2011

Mozambique - One of the best experts on this subject based on the ideXlab platform.

  • Environmental Impact Study : Annexes
    2019
    Co-Authors: Mozambique
    Abstract:

    The development objectives of the Temane Regional Electricity Project for Mozambique are to increase electricity generation capacity with private sector participation and to enhance transmission capacity for domestic and regional market. Some of the negative Impacts and mitigation measures include: (1) speed limits for construction heavy vehicles should not exceed 30 kilometer per hour near residential areas; (2) the sitting of transmission facilities must seek to avoid to the maximum extent possible areas of high irrigation suitability; (3) restrict vegetation clearing and topsoil removal to the areas strictly required for construction; (4) avoid the movement of machinery on river beds and floodplain areas, as much as possible; (5) promote the selection of areas with less of a need for tree cutting for temporary work and storage areas; (6) strictly limit the clearing of vegetation to the required areas, particularly in areas of natural habitats; (7) avoid movement of heavy machinery in wetlands, river banks, river beds, and waterbodies; (8) vegetation removal activities should be accompanied by an ecology and biology specialist, to minimize as much as possible the death of tree roosting animals; and (9) develop and implement a compensation plan, to adequately compensate for any losses of crops due to powerline construction.

  • Environmental Impact Study for Public Participation Process Report
    2019
    Co-Authors: Mozambique
    Abstract:

    The development objectives of the Temane Regional Electricity Project for Mozambique are to increase electricity generation capacity with private sector participation and to enhance transmission capacity for domestic and regional market. Some of the negative Impacts and mitigation measures include: (1) speed limits for construction heavy vehicles should not exceed 30 kilometer per hour near residential areas; (2) the sitting of transmission facilities must seek to avoid to the maximum extent possible areas of high irrigation suitability; (3) restrict vegetation clearing and topsoil removal to the areas strictly required for construction; (4) avoid the movement of machinery on river beds and floodplain areas, as much as possible; (5) promote the selection of areas with less of a need for tree cutting for temporary work and storage areas; (6) strictly limit the clearing of vegetation to the required areas, particularly in areas of natural habitats; (7) avoid movement of heavy machinery in wetlands, river banks, river beds, and waterbodies; (8) vegetation removal activities should be accompanied by an ecology and biology specialist, to minimize as much as possible the death of tree roosting animals; and (9) develop and implement a compensation plan, to adequately compensate for any losses of crops due to powerline construction.

  • Environmental Impact Study for Environmental and Social Management Plan
    2019
    Co-Authors: Mozambique
    Abstract:

    The development objectives of the Temane Regional Electricity Project for Mozambique are to increase electricity generation capacity with private sector participation and to enhance transmission capacity for domestic and regional market. Some of the negative Impacts and mitigation measures include: (1) speed limits for construction heavy vehicles should not exceed 30 kilometer per hour near residential areas; (2) the sitting of transmission facilities must seek to avoid to the maximum extent possible areas of high irrigation suitability; (3) restrict vegetation clearing and topsoil removal to the areas strictly required for construction; (4) avoid the movement of machinery on river beds and floodplain areas, as much as possible; (5) promote the selection of areas with less of a need for tree cutting for temporary work and storage areas; (6) strictly limit the clearing of vegetation to the required areas, particularly in areas of natural habitats; (7) avoid movement of heavy machinery in wetlands, river banks, river beds, and waterbodies; (8) vegetation removal activities should be accompanied by an ecology and biology specialist, to minimize as much as possible the death of tree roosting animals; and (9) develop and implement a compensation plan, to adequately compensate for any losses of crops due to powerline construction.

  • Environmental Impact Study for Impact Assessment and Mitigation Measures
    2019
    Co-Authors: Mozambique
    Abstract:

    The development objectives of the Temane Regional Electricity Project for Mozambique are to increase electricity generation capacity with private sector participation and to enhance transmission capacity for domestic and regional market. Some of the negative Impacts and mitigation measures include: (1) speed limits for construction heavy vehicles should not exceed 30 kilometer per hour near residential areas; (2) the sitting of transmission facilities must seek to avoid to the maximum extent possible areas of high irrigation suitability; (3) restrict vegetation clearing and topsoil removal to the areas strictly required for construction; (4) avoid the movement of machinery on river beds and floodplain areas, as much as possible; (5) promote the selection of areas with less of a need for tree cutting for temporary work and storage areas; (6) strictly limit the clearing of vegetation to the required areas, particularly in areas of natural habitats; (7) avoid movement of heavy machinery in wetlands, river banks, river beds, and waterbodies; (8) vegetation removal activities should be accompanied by an ecology and biology specialist, to minimize as much as possible the death of tree roosting animals; and (9) develop and implement a compensation plan, to adequately compensate for any losses of crops due to powerline construction.

  • Environmental Impact Study for Introduction, Project Description, and Baseline Assessment
    2019
    Co-Authors: Mozambique
    Abstract:

    The development objectives of the Temane Regional Electricity Project for Mozambique are to increase electricity generation capacity with private sector participation and to enhance transmission capacity for domestic and regional market. Some of the negative Impacts and mitigation measures include: (1) speed limits for construction heavy vehicles should not exceed 30 kilometer per hour near residential areas; (2) the sitting of transmission facilities must seek to avoid to the maximum extent possible areas of high irrigation suitability; (3) restrict vegetation clearing and topsoil removal to the areas strictly required for construction; (4) avoid the movement of machinery on river beds and floodplain areas, as much as possible; (5) promote the selection of areas with less of a need for tree cutting for temporary work and storage areas; (6) strictly limit the clearing of vegetation to the required areas, particularly in areas of natural habitats; (7) avoid movement of heavy machinery in wetlands, river banks, river beds, and waterbodies; (8) vegetation removal activities should be accompanied by an ecology and biology specialist, to minimize as much as possible the death of tree roosting animals; and (9) develop and implement a compensation plan, to adequately compensate for any losses of crops due to powerline construction.