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Modeling on adsorption–desorption of trace metals to suspended particle matter in the Changjiang Estuary
Springer Science and Business Media LLC - Tập 53 - Trang 1751-1766 - 2007
Y. Y. Zhang, E. R. Zhang, J. Zhang
The uptake and release of trace metals (Cu, Ni, Zn, Cd, and Co) in estuaries are studied using river and sea end-member waters and suspended particulate matter (SPM) collected from the Changjiang Estuary, China. The kinetics of adsorption and desorption were studied in terms of environmental factors (pH, SPM loading, and salinity) and metal concentrations. The uptake of the metals studied onto SPM...... hiện toàn bộ
Nitrogen and phosphate adsorption on biofilms in reclaimed water
Springer Science and Business Media LLC - Tập 74 - Trang 451-461 - 2015
Zigong Ning, Mingchao Liang, Zhenhua Wang, Yunkai Li, Yaoze Liu, Tianzhi Wang
Biofilms, abundantly attached on the surfaces of multiple media (such as pebbles and aquatic plants) in rivers or lakes reusing reclaimed water (RW), are of great significance to contaminants’ self-purification of water bodies. In this paper, the nitrogen and phosphate adsorption characteristics of such biofilms were studied by the batch method, using biofilms cultivated under an outdoor simulativ...... hiện toàn bộ
Vulnerability assessment of urban groundwater resources to nitrate: the case study of Mashhad, Iran
Springer Science and Business Media LLC - Tập 76 - Trang 1-15 - 2016
Parisa Asadi, Behzad Ataie-Ashtiani, Aliasghar Beheshti
Groundwater vulnerability assessment of urban areas is a challenging task in the fast trend of urbanization around the globe. This study introduces a new approach for modifying well-known parameters of common vulnerability indexes to adjust them for urban areas. The approach is independent of a specific weighting system. The aquifer of Mashhad city, contaminated by domestic wastewater, is selected...... hiện toàn bộ
Biến động hàm lượng Hg trong than có hàm lượng lưu huỳnh thấp liên quan đến môi trường hình thành than: một nghiên cứu trường hợp từ mỏ than Zhuji, vùng than Huainan, Bắc Trung Quốc Dịch bởi AI
Springer Science and Business Media LLC - Tập 77 - Trang 1-9 - 2018
Xudong Wang, Dun Wu, Guijian Liu, Ruoyu Sun
Hai mươi chín mẫu than có hàm lượng lưu huỳnh thấp đã được chọn để xác định độ lớn và tính biến động của hàm lượng thủy ngân (Hg) trong một hệ thống phân lớp đã được tài liệu hóa tốt, bao gồm mười lớp than liên tục tại mỏ than Zhuji, vùng than Huainan, tỉnh An Huy, Bắc Trung Quốc. Hàm lượng thủy ngân của các mẫu đã được đo bằng máy phân tích thủy ngân trực tiếp và kết quả tự tin đã được thu thập t...... hiện toàn bộ
#thủy ngân #hàm lượng lưu huỳnh thấp #mỏ than Zhuji #môi trường hình thành than #trữ lượng than
Relationship between magnetic properties and heavy metals of urban soils with different soil types and environmental settings: implications for magnetic mapping
Springer Science and Business Media LLC - Tập 66 - Trang 409-420 - 2011
Tao Yang, Qingsheng Liu, Qingli Zeng, Lungsang Chan
Two types of soil (fluvisols and anthrosols) were collected from different environmental settings (suburb and industrial area) in Wuhan, central China, aiming to examine the applicability of magnetic mapping for heavy metal pollution of urban soil in a large region. Magnetic measurements and chemical analysis indicated elevated magnetization and heavy metal concentrations of topsoils in the indust...... hiện toàn bộ
An introduction to Chinese safety regulations for blasting vibration
Springer Science and Business Media LLC - Tập 67 - Trang 1951-1959 - 2012
Wen-bo Lu, Yi Luo, Ming Chen, Da-qiang Shu
By reviewing the development history and the state-of-art, this paper introduces Chinese safety regulations for blasting vibration for adjacent structures and equipments, as well as for structures themselves under blasting operation, such as high rock slopes, underground caverns, foundation rock masses, and fresh concrete. The mechanism of failures or damages induced by blasting vibration, the ana...... hiện toàn bộ
Hydrochemical characteristics and the effects of irrigation on groundwater quality in Harran Plain, GAP Project, Turkey
Springer Science and Business Media LLC - - 2008
Mehmet İ̇rfan Yeşilnacar, M. Said Gulluoglu
Evaluation of a capture zone overlay method for designing groundwater remediation systems
Springer Science and Business Media LLC - Tập 31 - Trang 21-26 - 1997
P. F. Hudak
Simplified approaches are often used to model the removal of groundwater contamination. These approaches can yield poor remediation schemes because they incorrectly portray the effects of multiple pumping wells. In this study, a pumping configuration designed by graphically overlaying capture zones having an identical, quasi-elliptical shape was evaluated with a numerical mass transport model. Af...... hiện toàn bộ
Slope creep behavior: observations and simulations
Springer Science and Business Media LLC - Tập 73 - Trang 275-287 - 2014
Kuang-Tsung Chang, Louis Ge, Hsi-Hung Lin
Rock slopes undergoing long–term effects of weathering and gravity may gradually deform or creep downslope leading to geological structures such as bending, bucking, fracturing, or even progressive failure. This study uses geomechanics-based numerical modeling to qualitatively explain the cause and evolution of slope creep behavior. Constitutive models used include the creep, Mohr–Coulomb, and ani...... hiện toàn bộ
Effect of spatial scale on suspended sediment concentration in flood season in hilly loess region on the Loess Plateau in China
Springer Science and Business Media LLC - Tập 54 Số 6 - Trang 1261-1269 - 2008
Huan Fang, Hao Chen, Cai Qiangguo, Xin Huang
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