选钼中间矿浓缩溢流水回收及钼精矿干燥粉尘治理

介绍了德兴铜矿对选钼中间矿浓缩溢流水循环利用所采取的措施和所取得的成果。对原钼精矿干燥除尘系统存在问题进行了整治,达到了预期效果。     

沈阳地区一次颗粒物重污染天气过程的气象成因分析

为探究沈阳地区重污染天气成因,文章利用地面、高空气象观测资料、风廓线雷达资料、NECP再分析资料以及大气污染物监测资料,对2019年3月1～6日沈阳地区出现的一次持续性重污染天气过程,探讨了大气污染物质量浓度、地面气象要素变化特征、大气环流配置与外来输送等特征.结果表明,均压场、地面风场弱及辐合、高温高湿是本次重污染天...     

酸性含氟除尘污水浊循环的水质处理

在试验研究的基础上,对酸性含氟除尘污水实施浊循环。规模300～350m~3/h的工程运行表明,浊循环工艺是圆满成功的,取得了明显的社会、经济、环境效益。本文报告了循环试验、水质判断和对策,以及工程实践的主要结果。     

气候变化对我国水文水资源系统的影响研究

旨在介绍气候变化对我国水文水资源系统影响研究的进展、方法、技术及其优缺点,并分析气候变暖对我国水文水资源系统的影响结果,同时提出自己的一些建议。     

呼和浩特地区沙尘污染的环流特征分析与预报

呼和浩特地区每年发生多次大范围的沙尘天气污染,给交通运输、生态环境和人类生产生活带来诸多不利影响,尤其近年来, PM 2．5,PM 10已成为全社会关注的焦点,沙尘污染已引起社会与政府的高度关注。因此,对沙尘天气的分析与预报就显得尤为重要。本文对2002年至2011年近10年呼和浩特地区的沙尘污染下的天气环流特征进行了统计分析,并且进行了诊断分析,研究结果表明呼和浩特地区沙尘天气的气候特征是：年平均沙尘日数在27天以上,且大部分的沙尘污染源为系统性的外来沙尘,其余的为局地沙尘污染来自城市开发区域的地表裸土与建筑沙石;环流特征是：当北太平洋地区副高位势高度偏低,青藏高原至新疆500hPa高压脊异常偏强,亚洲大陆中高纬高度场较常年偏高时,呼和浩特市沙尘日数偏少。当春季太平洋海温表现为反厄尔尼诺（厄尔尼诺）典型态时,同期沙尘日数偏多（少）,反之亦然。通过对典型环流背景下沙尘暴的数值模拟和诊断分析,找出沙尘天气的预报着眼点：沙尘暴发生在不稳定的大气层结中,伴随有能量的积聚和释放,随着地面蒙古气旋及冷锋的强烈发展,中尺度切变线触发了沙尘活动。 MODIS卫星也对沙尘有一定的预报监视作用。     

Particulate matter and downward flux in the Northern and Central Adriatic Sea

During four oceanographic cruises carried out in June 1996, February and June 1997, and February 1998, particulate matter characteristics and short-term downward fluxes measured with drifting sediment traps were studied in two areas of the Adriatic Sea. The investigated areas were located one south of the Po River delta, and the other in the central Adriatic between Pesaro and Ancona. In each area, a frontal system was detected and two stations inside and outside the front, i.e . in coastal and offshore areas, were selected. The particulate and dissolved matter revealed a higher concentration in the coastal areas with the highest values in the central Adriatic coastal zone in both February surveys. Total mass fluxes ranged within two orders of magnitude from 11 to 3139 r mg m d in the northern area and similarly from 20 to 3864 r mg r m r d in the southern one, with higher values in the coastal stations. The organic carbon accounted for 3-30% of total flux in the northern coastal station with higher values in June, whereas at the offshore station it ranged from 6 to 39% in summer, decreasing to values lower than 10% in February. In the southern zone the organic carbon content was less than 2% in winter and from 3 to 33% in summer. The organic carbon fluxes (1-82 and 6-71 r mg C m d in the northern and southern area) were comparable with others measured with drifting sediment traps in the same area, though much lower with respect to those measured with long-term moored sediment traps. The export of organic carbon from the photic layer (expressed as the percentage of primary production) in the northern area was less than 10% at the coastal station, reaching a maximum of 12% in the offshore area. In the central Adriatic area it was greater, with values reaching up to 66% at the coastal station in June 1996. The organic carbon loss via sedimentation from the POC pool was low ( i.e. <1.5% per day) at both stations in the northern zone, while in the southern area the export was generally greater, exceeding 10% in the offshore area.     

商品粮流通系统中的人为灾害影响分析

我国每年在收获、储运、加工和消费等环节的粮食损失和浪费高达1300亿kg,大大超过建国以来任何一次灾害带来的损失,直接影响国民经济的发展。目前,人为灾害对我国成品粮的影响未引起人们的足够重视。本文对此进行了系统分析,并提出相应之对策。     

皂化废水和锅炉烟道气的联合处理技术研究

介绍了将皂化废水经预处理后用泵输入锅炉湿式除尘系统进行燃煤烟气脱硫除尘，流出废水经处理后循环回用的治理技术．该工艺采用以废治废，综合利用的方法治理皂化废水和锅炉烟气，取得了较好的环境效益和经济效益．     

我国电解锰行业循环经济对策研究

分析了目前我国电解锰行业发展中存在的问题,阐述了电解锰循环经济的内涵,提出了构建循环型产业链的整体思路,并从企业、行业、政策层面提出了具体对策,为中国电解锰行业可持续发展提供理论依据。     

再生水回用于景观水体的初步探讨

从国内外再生水回用于景观水体的现状以及城市生活污水再生利用发展规模上的变化,阐述了生活污水回用于景观水体的必要性,介绍了再生水处理工艺,通过实验结果论述了生活污水回用于景观水体的可行性,并分析了它的环境效益和经济效益。