Occurrence and removal of six pharmaceuticals and personal care products in a wastewater treatment plant employing anaerobic/anoxic/aerobic and UV processes in Shanghai,China

The occurrence and removal of six pharmaceuticals and personal care products (PPCPs) including caffeine (CF), N, N-diethyl-meta-toluamide (DEET), carbamazepine, metoprolol, trimethoprim (TMP), and sulpiride in a municipal wastewater treatment plant (WWTP) in Shanghai, China were studied in January 2013; besides, grab samples of the influent were also taken every 6 h, to investigate the daily fluctuation of the wastewater influent. The results showed the concentrations of the investigated PPCPs ranged from 17 to 11,400 ng/L in the WWTP. A low variability of the PPCP concentrations in the wastewater influent throughout the day was observed, with the relative standard deviations less than 25 % for most samples. However, for TMP and CF, the slight daily fluctuation still reflected their consumption patterns. All the target compounds except CF and DEET, exhibited poor removal efficiencies (<40 %) by biological treatment process, probably due to the low temperature in the bioreactor, which was unfavorable for activated sludge. While for the two biodegradable PPCPs, CF, and DEET, the anaerobic and oxic tank made contributions to their removal while the anoxic tank had a negative effect to their elimination. The tertiary UV treatment removed the investigated PPCPs by 5–38 %, representing a crucial polishing step to compensate for the poor removal by the biologic treatment process in winter.     

现代森林消防头盔的发展趋势与设计方向

阐述了现代森林消防头盔的研究意义,总结了国内外近年消防头盔的研究成果,得出现代森林消防头盔的发展趋势,并提出了今后现代森林消防头盔设计研究的六大主要方向和内容.     

Impact of global warming on European tidal estuaries: some evidence of northward migration of estuarine fish species

The aim of this study was to determine whether the latitudinal distribution of fish species that use estuaries to complete their entire life cycle has shifted northward as an expected consequence of global warming. The mean latitude of past fish species distributions found in 1970s’ literature was compared with the mean latitude of distributions today based on fish density indices collected in 55 tidal estuaries along the Atlantic European seaboard, from Portugal to Scotland. Among the 15 most common species, 11 displayed a positive difference between current and past mean latitudes suggesting a northward shift of the populations. Using the occurrence of subtropical species in temperate areas as an indicator of water warming, the northernmost range limit of 10 subtropical species was subsequently focused on. Six of them were recorded up to their past northern latitudinal limit. These results reinforced the idea that a number of fish species associated to estuaries have migrated northwards over the last 30 years, possibly due to water warming. These ecological changes can get important managerial implications, i.e. in the assessment of the ecological status in European directives.     

沈阳商业城火灾及灾后修复

介绍了发生在沈阳商业城的火灾及灾后调查、检测和加固情况，从中得到一些有意义的看法。     

遥感旱灾模型综合分析

本文在野外实验的基础上，对遥感旱灾模型进行综合分析和评价。运用四年的实地观测数据，校正了旱灾模型中的待定系数，使其能用于ＮＯＡＡ气象卫星对旱情的监测。对复杂的蒸散模型简化的可行性进行了尝试性研究。     

“四坚持”探析激发村民参与环境整治内生动力

当前,距离2020年实现农业农村污染治理攻坚战目标的时间不到两年,我国农村环境整治工作仍面临着资金投入空缺较大、村民内生动力不足等突出问题。本文在明确激发农民内生动力的意义和必要性后,全面分析了当前农村环境整治形势,深刻阐述了村民参与环境整治的制约因素,并分别从事权划分、推进方式、奖惩机制和思想意识四方面,提出了激发村民内生动力助力农村污染治理攻坚战的对策建议。     

活性污泥法+接触氧化法工艺处理高盐度环氧丙烷生产废水的试验研究

采用活性污泥法和接触氧化两段工艺对高含盐的环氧丙烷生产废水进行处理，同时研究了不同水力停留时间的处理效果和不同的盐度对处理效果的影响。试验结果表明CODcr的去除率可以达84．38％，出水CODcr＜160mg／L，pH＜8。     

干旱区荒漠植被的特点及恢复问题的研究--以塔里木河流域胡杨林生态系统为例

干旱区除存在唯一的真正森林-胡杨(Populuseuphratica)林外,植被普遍极其稀疏,以降水稀少,蒸发显著为特点的干旱区,荒漠植被的存在对于生态环境的保护和良性发展起到极大的作用,干旱区的荒漠植被表现出特有的生理特征,本文研究塔里木河流域胡杨林的特征及对生态环境的适应规律,进一步提出了扩展荒漠植被的可能性及其措施。