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首页> 美国卫生研究院文献>Scientific Reports >Analytical Study of Fuel Switching from Heavy Fuel Oil to Natural Gas in clay brick factories at Arab Abu Saed Greater Cairo
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Analytical Study of Fuel Switching from Heavy Fuel Oil to Natural Gas in clay brick factories at Arab Abu Saed Greater Cairo

机译：大开罗阿拉伯阿布萨德粘土砖厂燃料从重油转换为天然气的分析研究

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Arab Abu Saed area in Giza governorate, south to Cairo contains more than 228 clay brick kilns represent the largest cluster of brickworks in Egypt. Burning of Heavy Fuel Oil (HFO) in such kilns is the main source of air pollution in the surrounding locations. In this study, investigation of switching the fuel used in brick kilns from (HFO) to Natural Gas (NG) is carried out and the pollution loads are assessed in both cases. In addition, two Gaussian dispersion plume models are employed to estimate the concentration of primary pollutants; PM10, SO2, and NO2 at seven locations in the vicinity of Arab Abu Saed to determine the most adversely affected locations. Statistical analysis is applied to evaluate the correlation and conformity of the results of both models. Results show that using of NG leads to a significant reduction of pollution loads of PM10, SO2 and NO2 reaches 96%, 72%, and 24% respectively. In addition, the reduction of naturally occurring radionuclides in air is analyzed. Activity concentrations of Ra-226, Th-232 and K-40 in Bq/l for HFO were measured using HPGe detector for six HFO samples. Exposure due to air submersion of naturally occurring radionuclides in the study area leads to annual equivalent dose ranged between 2.16 mSv/y (received by Uterus) and 14 mSv/y (received by skin), and average effective dose 2.65 mSv/y which represent valuable exposure.
机译：开罗以南的吉萨省的阿拉伯阿布萨德地区，有228多个粘土砖窑，是埃及最大的砖窑建筑群。在此类窑炉中燃烧重燃料油（HFO）是周围地区空气污染的主要来源。在这项研究中，进行了将砖窑中使用的燃料从（HFO）转换为天然气（NG）的研究，并评估了两种情况下的污染负荷。另外，采用了两个高斯弥散羽流模型来估算主要污染物的浓度。在阿拉伯阿布萨德附近的七个地点的PM10，SO2和NO2，以确定受影响最严重的地点。应用统计分析来评估两个模型结果的相关性和一致性。结果表明，使用NG可以显着减少PM10的污染负荷，SO2和NO2分别达到96％，72％和24％。另外，分析了空气中天然存在的放射性核素的减少。使用HPGe检测器对六个HFO样品测量了HFO的Bq / l中Ra-226，Th-232和K-40的活性浓度。空气中自然产生的放射性核素被空气淹没导致的暴露当量年等效剂量范围为2.16 mSv / y（子宫接受）至14 mSv / y（皮肤接受），平均有效剂量为2.65 mSv / y，代表有价值的曝光。

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