顾桥矿矿井水净水剂投加方案探讨

选择常用的混凝剂和助凝剂,对顾桥矿矿井水的净化进行实验,确定最佳混凝剂和絮凝剂投加量以及PH、反应时间等对混凝效果的影响,从而得出合理、经济的投加方案,达到提高矿井水出水水质,降低处理成本的目的.     

废旧手机电池的回收利用

文章主要阐述了废旧手机电池的现状、危害及回收利用的意义,介绍了国外废旧手机电池回收利用的技术,并对我国废旧手机电池回收利用提出了合理化的建议.     

福建与台湾地震台网测定震级偏差浅析

选用福建地震台网"十五"观测系统正式运行以来记录的台湾地区M L≥3.0地震资料,计算了福建与台湾地震台网测定震级平均偏差、相关系数及拟合方程,并分析了震级差异形成原因。结果表明,福建地震台网测定台湾及其邻近海域的震级偏低,3.0≤M L<4.5,偏差量为0.80,M L≥4.5,偏差量为0.46;量规函数偏小是造成震级偏低的主要原因。     

The air pollution effect of government economic growth expectations: evidence from China’s cities based on green technology

Environmental Science and Pollution Research - Based on the Government Work Report of 265 prefecture-level cities in China from 2004 to 2015, this article combines economic growth expectations data...     

Development of global soil erosion research at the watershed scale: a bibliometric analysis of the past decade

Environmental Science and Pollution Research - At the watershed scale, soil erosion is a cascading system that includes detachment–transport–deposition processes while sediment yield is...     

Response of sulfhydryl compounds in subcells of Cladophora rupestris under Pb stress

Environmental Science and Pollution Research - This study aimed to determine the role of sulfhydryl compounds in the subcells of C. rupestris under Pb stress. Different concentrations (0, 0.5, 1.0,...     

Identifying unknown antibiotics with persistent and bioaccumulative properties and ecological risk in river water in Beijing,China

Environmental Science and Pollution Research - The goal of this study was to identify antibiotics with potential risk in river water of the megacity Beijing, China. This was accomplished by using a...     

Study of uncertainty of satellite and reanalysis precipitation products and their impact on hydrological simulation

Environmental Science and Pollution Research - Satellite and reanalysis precipitation products are potential alternatives in hydrological studies, and it is very important to evaluate their...     

Adsorption behaviours and transfer simulation of levofloxacin in silty clay

Fluoroquinolone antibiotics in soil can cause serious antibiotic pollution. Adsorption is the main factor that influences their destination and transport of antibiotics. Therefore, research on the behaviour of antibiotics once they reach the soil environment is meaningful to design appropriate measures to reduce their potential risks. This research took levofloxacin (LVFX) as the research object and used a static adsorption experiment to study the adsorption behaviour of the vadose zone of silty clay on the North China Plain. The results showed that LVFX had high retention in silty clay, with an average adsorption ratio of more than 90%. Adsorption of LVFX on silty clay reached equilibrium in 24 h with an adsorption amount of 93.5 mg/kg at an initial LVFX concentration of 10 mg/L. Acidity, cations and soil organic matter could affect the adsorption of LVFX, with adsorption variation ratio of 3.3%, 3.4% and 0.6%, respectively. In addition, numerical simulation with Hydrus-1D was utilized, and the results show that LVFX may infiltrate into underground water through silty clay after 28 days and completely penetrate in 100 days.

     

Determining the origin and fate of nitrate in the Nanyang Basin,Central China,using environmental isotopes and the Bayesian mixing model

Environmental Science and Pollution Research - Identifying sources of nitrate contamination has been a long-term challenge in areas with different land uses. We investigated the biogeochemical...