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951.
硫化矿自燃是一个以氧化放热为主、自发产生热量及热量积蓄引起硫化矿堆升温的非常复杂的物理化学过程.因此,研究硫化矿自热过程是研究硫化矿自燃早期预测预报方法的前提.文章以红外非接触方式,利用RaytekminiTemp红外测温仪和CENTER可记录温度计测定硫化矿石堆氧化自热温度,重点分析了测定过程中的实际温度时影响精度的有关因素,主要有矿样种类、矿样温度、矿样块度、检测距离、环境温度、光束与矿样的夹角.通过实验室研究,为研制出专门用于舍硫矿自燃预测预报的装置提供理论依据,从而达到预测预报硫化矿自燃的目的. 相似文献
952.
Formation mechanisms of nitrous acid (HONO) during the haze and non-haze periods in Beijing, China
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Deng Lin Shengrui Tong Wenqian Zhang Weiran Li Fangjie Li Chenhui Ji Gen Zhang Meifang Chen Xinran Zhang Zhen Wang Maofa Ge Xiang He 《环境科学学报(英文版)》2022,34(4):343-353
As an important precursor of hydroxyl radical (OH), nitrous acid (HONO) plays a significant role in atmospheric chemistry. Here, an observation of HONO and relevant air pollutants in an urban site of Beijing from 14 to 28 April, 2017 was performed. Two distinct peaks of HONO concentrations occurred during the observation. In contrast, the concentration of particulate matter in the first period (period Ⅰ) was significantly higher than that in the second period (period Ⅱ). Comparing to HONO sources in the two periods, we found that the direct vehicle emission was an essential source of the ambient HONO during both periods at night, especially in period Ⅱ. The heterogeneous reaction of NO2 was the dominant source in period Ⅰ, while the homogeneous reaction of NO with OH was more critical source at night in period Ⅱ. In the daytime, the heterogeneous reaction of NO2 was a significant source and was confirmed by the good correlation coefficients (R2) between the unknown sources (Punknown) with NO2, PM2.5, NO2 × PM2.5 in period Ⅰ. Moreover, when solar radiation and OH radicals were considered to explore unknown sources in the daytime, the enhanced correlation of Punknown with photolysis rate of NO2 and OH ( × OH) were 0.93 in period Ⅰ, 0.95 in period Ⅱ. These excellent correlation coefficients suggested that the unknown sources released HONO highly related to the solar radiation and the variation of OH radicals. 相似文献
953.
Qi Yongfeng Wang Ziqian Ge Panle Wang Meiting Zhang Chuanling Wang Huawei Zhao Lingzhi Wu Jiang Li Yan 《Environmental science and pollution research international》2022,29(38):57566-57578
Environmental Science and Pollution Research - In this study, a method of preparing fertilizers with the fly ash from biomass power plants and the waste acid solution from flue gas desulfurization... 相似文献
954.
Wenjuan Zhang Bo Han Ramato Ashu Tufa Chuyang Tang Xunuo Liu Ge Zhang Jing Chang Rui Zhang Rong Mu Caihong Liu Dan Song Junjing Li Jun Ma Yufeng Zhang 《Frontiers of Environmental Science & Engineering》2022,16(4):46
955.
Ding Shijie Zhao Jing Zhang Meng Yang Sheng Zhang Hongwei 《Environment, Development and Sustainability》2022,24(1):454-472
Environment, Development and Sustainability - China is the largest source of carbon emissions in the world, and the Chinese iron and steel sector is the main contributor to the growth in greenhouse... 相似文献
956.
Environmental Science and Pollution Research - To establish the carbon emission trading scheme and achieve the carbon emission reduction goals in China, it is critical to allocate the carbon... 相似文献
957.
Zhu Dayu Ge Chengjun Sun Hongfei Wang Jun He Liujing 《Environmental science and pollution research international》2022,29(42):63182-63192
Environmental Science and Pollution Research - Tetramethyl thiuram disulfide (TMTD), an emerging pollutant with ecotoxicity and accumulation in rubber wastewater, is directly discharged by... 相似文献
958.
Li Chunmei Chandio Abbas Ali Farooq Usman Sahito Jam Ghulam Murtaza He Ge 《Environment, Development and Sustainability》2022,24(1):271-292
Environment, Development and Sustainability - This study investigates the impact of the mechanism of green public consumption policy on environmental equity and provides a feasible reference for... 相似文献
959.
Ge Mina Kannaiah Desti Li Junrong Khan Nasir Shabbir Malik Shahzad Bilal Kanwal Tabash Mosab I. 《Environmental science and pollution research international》2022,29(18):26182-26189
Environmental Science and Pollution Research - This study examines to what extent foreign private investment (FPI) affects the clean industrial environment and sustainable economic growth through... 相似文献
960.
椅式桩板结构在高陡边坡路基工程中应用广泛,研究其高烈度地震下的响应特征对抗震分析具有重要意义.以拟建川藏铁路某斜坡椅式桩板结构路基支挡工程为背景,建立有限差分三维数值计算模型,研究了结构的静、动力学响应特性,分析了结构最不利状态响应物理量的取值方法,探讨了结构传力分担机制及重要受力部位,提出了结构地震响应简化计算方法.... 相似文献