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441.
Yu Bon Man Ka Lai Chow Zhang Cheng Wing Yin Mo Yung Hau Chan James Chung Wah Lam Frankie Tat Kwong Lau Wing Cheong Fung Ming Hung Wong 《环境科学学报(英文版)》2017,29(3):196-206
Sewage discharge could be a major source of polycyclic aromatic hydrocarbons(PAHs) in the coastal waters. Stonecutters Island and Shatin Sewage Treatment Works(SCISTW and STSTW)in Hong Kong, adopted chemically enhanced primary treatment and biological treatment,respectively. This study aimed at(1) determining the removal efficiencies of PAHs,(2) comparing the capabilities in removing PAHs, and(3) characterizing the profile of each individual PAHs, in the two sewage treatment plants(STPs). Quantification of 16 PAHs was conducted by a Gas Chromatography. The concentrations of total PAHs decreased gradually along the treatment processes(from 301 ± 255 and 307 ± 217 ng/L to 14.9 ± 12.1 and 63.3 ± 54.1 ng/L in STSTW and SCISTW, respectively). It was noted that STSTW was more capable in removing total PAHs than SCISTW with average total removal efficiency 94.4% ± 4.12% vs. 79.2% ± 7.48%(p 0.05). The removal of PAHs was probably due to sorption in particular matter, confirmed by the higher distribution coefficient of individual and total PAHs in solid samples(dewatered sludge contained92.5% and 74.7% of total PAHs in SCISTW and STSTW, respectively) than liquid samples(final effluent-total contained 7.53% and 25.3% of total PAHs in STSTW and SCISTW, respectively).Despite the impressive capability of STSTW and SCISTW in removing PAHs, there was still a considerable amount of total PAHs(1.85 and 39.3 kg/year, respectively for the two STPs) being discharged into Hong Kong coastal waters, which would be an environmental concern. 相似文献
442.
443.
直角拐弯通道中空气冲击波的传播及数值模拟 总被引:8,自引:0,他引:8
针对地下通道中空气冲击波的传播,通过试验研究,得到了空气冲击波在直角拐弯通道中传播的衰减系数.同时,应用流体网格法进行了数值模拟,获得了通道直角拐弯前后空气冲击波传播的波形图和流场图.并将两方面的研究成果进行了对比,证明了试验和数值研究方法及研究成果的一致性. 相似文献
444.
Gao Yuan Fan Keyu Lai Zini Wang Chao Li Haiyan Liu Qianfu 《Environmental science and pollution research international》2022,29(21):30935-30953
Environmental Science and Pollution Research - Nowadays, the extensive application of microplastics (MPs) has led to the gradual accumulation of toxicity in aquatic environment and caused potential... 相似文献
445.
Yao Yuanyuan Pan Yuqi Yu Yanxi Yu Zixun Lai Leo Liu Fangzhou Wei Li Chen Yuan 《Environmental Chemistry Letters》2022,20(6):3837-3859
Environmental Chemistry Letters - Fenton processes allow to degrade and mineralize toxic organic contaminants, yet classical Fenton processes require continuously adding hydrogen peroxide and... 相似文献
446.
Qiao Pengwei Lai Donglin Yang Sucai Zhao Qianyun Wang Hengqin 《Environmental science and pollution research international》2022,29(23):33945-33956
Environmental Science and Pollution Research - The prediction accuracy of the spatial distribution of soil pollutants at a site is relatively low. Related pollutants can be used as auxiliary... 相似文献
447.
Radwan Mohammed K. H. Onn Chiu Chuen Mo Kim Hung Yap Soon Poh Chin Ren Jie Lai Sai Hin 《Environment, Development and Sustainability》2022,24(4):4751-4785
Environment, Development and Sustainability - Coal fly ash and granulated ground blast furnace slag (GGBS) are more widely used as supplementary cementitious materials in cement production. This... 相似文献
448.
Lai Aolin Yang Zhihui Cui Lianbiao 《Environmental science and pollution research international》2022,29(7):10157-10172
Environmental Science and Pollution Research - While local protectionism and market segmentation owing to fiscal decentralization are not conducive to broad economic development, they may be... 相似文献