搜索结果: 76-90 共查到“国际动态 环境工程学”相关记录309条 . 查询时间(1.485 秒)
Beyond EPA's Clean Power decision:Climate action window could close as early as 2023(图)
Beyond EPA Clean Power decision Climate action window close as early as 2023
2017/10/25
As the Trump administration repeals the U.S. Clean Power Plan, a new study from the University of Michigan underscores the urgency of reducing greenhouse gas emissions—from both environmental and econ...
研究人员提出将垃圾变为燃料的两种新方法(图)
研究人员 垃圾 燃料 两种新方法
2017/9/12
二氧化碳(CO2)是社会的最终废弃物,每年有数十亿吨被排到大气中。但将其转化为有价值的燃料和化学物质通常需要过多能量,这使其在经济上变得不合理。在近日举行的美国化学会(ACS)会议上,研究人员报告称发现了将CO2转变为富含能量的副产品的两种有效方式。
新技术用植物废料低成本制取生物燃料
新技术 植物废料 低成本 生物燃料
2017/9/12
美国特拉华大学科学家开发出一种简易、高效、生产成本较低的新技术,可将植物废料中的木质纤维素分解成糖,进而转化成生物燃料。
俄美科学家共同研发出核污染水的廉价净化技术
俄美科学家 核污染水 廉价 净化技术
2017/6/20
俄罗斯喀山联邦大学与美国莱斯大学联合研发出核污染水的廉价净化技术,相关的研究成果刊登在美国《Carbon》科学杂志上。该工艺采用的原材料有两种:一种是被称之为“C-seal F”的碳材料,现主要作为石油开采业中钻井液添加剂来使用;第二种为自然界中的天然次石墨,两种材料均成本低廉。采用氧化剂对碳材料进行处理,提高其比表面积并在材料结构中添加氧元素,形成氧化改性碳材料。所获得改性碳材料可从核污染水中高...
West Virginia groundwater not affected by fracking, but surface water is
West Virginia groundwater not affected by fracking surface water is
2017/4/27
Fracking has not contaminated groundwater in northwestern West Virginia, but accidental spills of fracking wastewater may pose a threat to surface water in the region, according to a new study led by ...
欧盟联合研究中心(JRC)近日公布了对多瑙河大区域空气污染的一项研究结果。结果显示,该区域主要城市的PM2.5污染来源中,住宅供暖占到35%,其次是农业(32%)、能源生产/工业(30%)和交通(25%)。为增强该区域空气污染治理的有效性,需要整合能源、交通等部门的政策和相关体制机制。
Brake Dust May Cause More Problems Than Blackened Wheel Covers
Brake Dust Blackened Wheel Covers
2017/3/14
Though tailpipe emissions could fall in the years ahead as more zero-emission vehicles hit the streets, one major source of highway air pollution shows no signs of abating: brake and tire dust.Metals ...
Concurrent heat waves,air pollution exacerbate negative health effects of each
Concurrent heat waves air pollution exacerbate negative health
2017/3/14
The combination of prolonged hot spells with poor air quality greatly compounds the negative effects of each and can pose a major risk to human health, according to new research from the University of...
New technique IDs micropollutants in New York waterways
IDs micropollutants New York waterways
2017/2/16
Cornell engineers hope that clean water runs deep. They have developed a new technique to test for a wide range of micropollutants in lakes, rivers and other potable water sources that vastly outperfo...
新一代光敏二氧化钛复合材料应对大气污染
氮氧化物 大气污染 光敏二氧化钛 复合材料
2016/12/14
氮氧化物是现代城市大气污染物的最主要来源,光敏二氧化钛(TiO2)复合材料自上世纪90年代中期问世以来,以其能将大气氮氧化物催化氧化成无毒无害硝酸盐的独特功能,在欧盟范围内得到快速的商业化应用。混合约4%比例光敏复合材料的混凝土涂层技术,不仅具备自清洁功能,还可有效吸附大气中高达80%以上的氮氧化物,被广泛应用于建筑和道路等公共基础设施建设领域,以应对大气污染。但高浓度大气污染往往伴随着严重的雾霾...
New nanotechnology to produce sustainable,clean water for developing nations
produce sustainable clean water developing nations
2016/10/10
The world's population is projected to increase by 2-3 billion over the next 40 years. Already, more than three quarters of a billion people lack access to clean drinking water and 85 percent live in ...
Ecological consequences of amphetamine pollution in urban streams
Ecological consequences amphetamine pollution urban streams
2016/9/12
Pharmaceutical and illicit drugs are present in streams in Baltimore, Maryland. At some sites, amphetamine concentrations are high enough to alter the base of the aquatic food web. So reports anew stu...
首批项目进入水污染防治行动计划中央储备库
水污染防治行动计划中央储备库 环境保护部
2016/8/10
记者2016年8月8日从环境保护部获悉,2016年度水污染防治行动计划中央项目储备库近日建设完成,共涉及具体工程项目4800多个,总投资超过4300亿元。储备库分中央储备库和省级储备库,水污染防治相关项目实施依托储备库开展。
Study maps hidden water pollution in U.S. coastal areas
maps hidden water pollution U.S. coastal areas
2016/8/11
Researchers have uncovered previously hidden sources of ocean pollution along more than 20 percent of America’s coastlines.The study, published online Aug. 4 in the journal Science, offers the fi...
俄罗斯开发出从工业废弃物中提取稀土元素的技术
稀土元素 稀土产品
2016/7/14
俄罗斯国立研究型技术大学莫斯科钢铁合金学院和俄罗斯国家原子能公司“领先化学工艺研究院”股份公司组成的研究团队,开发出从化肥生产的废弃物——磷石膏中提取具有重要战略意义的稀土元素的方法,从而减少稀土的进口。