Characteristics and sources of typical pollution components in mine water in the border area of Inner Mongolia and Shaanxi [PDF]
, 2023 The border area between Mongolia and Shaanxi is the core area for China’s energy security. However, a large number of mine water produced in the process of coal mining contains a variety of pollution components.
Hao WANG +4 more
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Effect of Adsorption of Metal Elements Ni and V on the Structure of Humin [PDF]
, 2023 BACKGROUNDBlack shales are mostly developed in special periods in geological history. They not only record the evolution characteristics of paleoenvironment, paleoclimate and paleontology, but also are carriers of organic matter, oil and gas and various ...
Jianping CHENG +5 more
core +1 more source
Distribution and Seasonal Variations of Chromophoric Dissolved Organic Matter （CDOM） in the Bohai Sea and the North Yellow Sea [PDF]
, 2018 UV-Vis spectral data and a fluorescence excitation-emission matrix (EEM) was analyzed for the surface, middle, and bottom layer water samples from the Bohai Sea and North Yellow Sea in April, August, and December of 2016 and February of 2017 ...
刘兆冰 +3 more
core +2 more sources
Research Progress on the Effect of Dissolved Organic Matter on the Environmental Behavior of Cadmium in Environmental Remediation [PDF]
With the rapid development of the economy and society and the continuous emission of cadmium (Cd), Cd pollution has become a major environmental problem faced by China and the rest of the world.
Bo WANG +8 more
core +1 more source
, 2018 海洋有机质的光谱分析已成为海洋碳循环的研究热点之一。本文从天然有机质吸收光谱和荧光光谱分析的基本原理入手,系统梳理了有机质光谱分析中容易被忽视的基本概念,讨论了过滤与保存方式、p H值、荧光内滤效应等对有机质光谱分析的影响。结合色氨酸、酪氨酸、腐殖酸及大量现场样品的实验结果,对吸收光谱和三维荧光光谱的不同解析方法进行了系统的分析与对比。基于在南海、西菲律宾海获取的现场调查数据,对于文献中常用的荧光指数(FI)、腐殖化指数(HIX)、自生源指数(BIX ...
徐静 +4 more
core
Influence of cage culture on methylmercury in water column of reservoir [PDF]
, 2012 To understand the influence of cage culture on the methylmercury production and distribution in water column of reservoir, water samples were collected from four cage culture sites in Wujiangdu Reservoir in September (warm season), 2010 and in March ...
Feng, Caiyan +3 more
core
The Study on Optical Characteristics of CDOM in Sediment Pore Waters and Photochemistry of CDOM in Estuarine Waters [PDF]
, 2007 海洋有色溶解有机物（CDOM）作为溶解有机物（DOM）的主要成分及海洋碳循环的关键环节，近年来受到海洋学家的广泛重视。本论文围绕海洋CDOM的两个潜在来源——沉积物的再悬浮作用与雨水输入，以及一个关键的去除途径——光化学降解展开研究，利用最新的三维荧光光谱（EEMs）分析手段，结合吸收光谱以及溶解有机碳（DOC）的测定，分析了中国华南地区河口近海沉积物间隙水中CDOM的光学特性及底质再悬浮作用作为海水中CDOM来源的可能性；在国内首次观测了雨水中CDOM的荧光光谱特征 ...
程远月
core
Shuitu Baochi Xuebao, 2006 腐殖酸作为湖泊沉积物中有机质的主要成分．对重金属具有强烈的富集能力，从而影响湖泊沉积物中重金属向水中的释放。本文深入探讨了腐殖酸的不同组分对沉积物中Cu、Zn、Pb、Cd向水中释放的影响。结果表明：腐殖酸的添加使沉积物中重金属的释放置明显受到影响。Cu、Zn、Pb、CA4种重金属随着胡敏酸和富里酸的添加．释放量逐渐增加，并且两种腐殖酸的用量越大．重金属的释放量越大。向沉积物中加入同等量的胡敏酸、富里酸，两种腐殖酸对重金属释放的促进作用胡敏酸〉富里酸。向沉积物中加入不同用量的富里酸FA，沉积物中Cu、Zn、
蔡金娟, 史衍玺
doaj
The Study on Seasonal/Spatial Variation of Dissolved Organic Matter and its Optical Properties and their Application as Tracers of Watermass Movement in Beibu Gulf [PDF]
, 2009 本文是在2006年7月（夏季）和12月（冬季）、2007年4月（春季）和10月（秋季）四个航次中在北部湾进行环境综合调查的基础上，对该海域进行了水体表、中、底层溶解有机物的现场调查及室内分析，利用CDOM的光学特征研究了CDOM在南海北部湾来源、分布、迁移、季节变化，从定性与定量的角度研究该海域CDOM的光谱特性，主要对该海域水体中CDOM的EEMs性质进行研究，并采用聚类分析\方法对数据进行处理，分析该海域CDOM的来源，探讨控制CDOM分布与变化的主要因素与生物地球化学过程，主要结果如下： 1 ...
刘宇
core
Shuitu Baochi Xuebao, 2004 用连续浸提的方法研究了若尔盖高原4种湿地土壤(风沙土、草甸土、沼泽土和泥炭土)中硒的含量、形态、剖面分布及其影响因素,以期为该区人、畜缺硒症的防治积累科学资料。结果表明,该区土壤属于低硒环境,表层土壤全硒含量范围为65～260μg/kg。在各种形态硒中,水溶性硒仅占土壤全硒含量的1.12%～3.08%,交换态硒占2.91%～6.03%,有机态硒占10.28%～45.63%,酸溶态硒、硫化态硒和残余态硒3种无效态硒共占60%以上。在土壤有机态硒组成中,胡敏酸结合态硒(HA-Se)占有机态硒的57.84 ...
田应兵 陈芬 熊明彪 宋光煜
doaj +2 more sources