内页广告

GFT系列高性能防腐蚀涂料该产品是中国航天３１所“北京三发高科技实业总公司”应用航天工高技术生产的、具有当今国际水平的超长效防腐蚀涂料。特点：１．具有在强酸、强碱、盐、油、污水、高温、高湿、高磨损等恶的环境中长期耐腐蚀的能力；２．有效成分含量高，避免了溶剂挥发成的资源浪费和环境污染；３．对基材表面处理要求不高，与金属、混土有很强的粘结力，施工简便，造价低。该产品已在全国三百余家环保企业的除尘脱硫设备、污水处理工上采用。公司负责施工技术指导并免费提供咨询、资料、样品、样件。地址：北京丰台云岗通讯：…     

海上风电涂料防腐蚀性能的研究

为了综合考察海上风电涂料的防腐蚀性能,根据海上环境设计了耐中性盐雾实验、耐湿性实验和耐霉菌实验,通过对比不同涂层体系的优劣,从而获得相关环境可靠性分析案例以及影响海上风电涂料的防腐蚀性能的因素。     

标准动态

正筹建成立ISO/TC防腐蚀工程国际标委会会议在京召开近日,筹建成立ISO/TC防腐蚀工程国际标准化组织技术委员会的国际视频会议在京召开。中国工业防腐蚀技术协会、全国防腐蚀标准化技术委员会与美国防腐工程师协会美国总部、亚太区代表和中国总代表等就开展防腐蚀标准合作达成协议,并一致同意共同推进成立新ISO/TC防腐蚀工程国际标准化组织技术委员会。据中国工业防腐蚀技术协会会长任振铎介绍,从国内情况看,防腐蚀涉及的领域较多,相关的标准较为分散,或以涂料为核心,或以非金属为核心,而不是以防     

南京天祥,环保飞翔——访南京天祥涂料有限公司

随着城市化进一步推进,城市建设进一步繁荣发展,涂料产品已成为城市发展的高消费产品,因此,涂料行业也得到了迅速发展壮大,但是在生产涂料油漆产品的同时也产生众多有害化学污染物,如果不进行环保处理,将危害到人类健康。为了确保涂料产品绿色环保,1994年,国家环保局实施了中国环境标志产品认证计划,至今已有59类产品被纳入认证范畴,约25000种产品得到了认证,成为目前最权威的环保产品认证之一。涂料类产品自从1997年被纳入环境标志产品认证体系以来,我国涂料产品逐渐实践了规范化、环保化生产。南京天祥涂料有限公司生产的天祥漆是最早进行环境标志产品认证的涂料企业之一,在产品研发、选料、生产、运输销售、使用等环节都达到了国家相关规定要求,为其它同类产品研发、生产等起到了典型的示范作用。为此,本刊记者采访了南京天祥涂料有限公司的总工程师徐凯斌先生。     

新型的环保涂料-低温固化阴极电泳涂料

详细阐述了阴极电泳涂料的发展方向,分析了国内外的现状以及国内的需求,从环保节能的角度出发,重点论述了发展低温固化阴极电泳涂料的必要性、紧迫性、研究方向以及由此带来的巨大经济和社会效益以及其广阔的应用前景.     

环保新政迫使国产涂料“油改水”

<正>当一栋楼里有一家在装修,整个楼道里都会弥漫着浓烈的油涂料味。这种气味就是从涂料中挥发出来足以致癌的甲醛、苯、甲苯、二甲苯等剧毒物质。在日趋严厉的环保新政之下,以往很少被关注的涂料产业,如今可以说离"上头条"不远了。今年以来,随着环保新政的实施,由全国涂料和颜料标准化技术委员会负责组织制定的《水性聚氨涂料》《水性环氧树脂防腐涂料》《水性丙烯酸树脂涂料》等3项水性工业涂料产品标准也于6月1日起正式实     

钢制电缆桥架的双重防腐蚀保护层

介绍钢制电缆桥架目前国内采用的几种表面防腐蚀保护层，从本公司电缆桥加厂经过多年生产及调查用户的应用情况，分析了各种防腐蚀环境下对钢制电缆桥架防腐蚀保护层的腐蚀，并对八种保护层作了比较，可供用户选用时参考。     

新型玻纤／P84复合针刺毡的开发及应用

阐述了玻纤／P84复合毡过滤材料的研制过程、技术方法、使用效果及其应用。玻纤／P84复合针刺毡既要满足高性能、低成本的生产要求，还要适应不断提高的环保要求及复杂工况的要求。     

脱硫装置中鳞片衬里防腐蚀失效原因探讨

防腐蚀是火电厂湿法烟气脱硫（FGD）装置中的一个重要环节,该装置腐蚀环境苛刻,作为一种普遍采用的鳞片衬里材料,在国内的一些应用案例中出现了一些防腐蚀失效的情况。本文就一些FGD装置的防腐蚀失效情况进行了分析,找出原因并提出了对策。     

纳米TiO2的特性及其在环保方面的应用

纳米TiO2颗粒是一种重要的高性能和高功能材料,具有独特的光催化性和表面超双亲性等功能,在水处理和空气净化等环保领域具有广阔的应用前景。本文着重阐述了纳米TiO2的特性及其在环境保护中的应用,并对目前存在的问题及今后的发展方向进行了讨论。     

我国噪声与振动控制行业2012年发展综述

综述了2012年我国噪声与振动控制行业的发展环境以及行业的生产经营情况;阐述了行业总体技术进展、新技术的开发应用概况,以及行业市场特点及重要动态;分析了行业主要骨干企业的发展情况及企业的国内国际竞争力状况;针对行业发展中存在的主要问题,提出了解决对策和建议,并对行业的发展进行了展望。     

Variability of soil-water quality due to Tsunami-2004 in the coastal belt of Nagapattinam district, Tamilnadu

In this study, the Tsunami-caused deterioration of soil and groundwater quality in the agricultural fields of coastal Nagapattinam district of Tamilnadu state in India is presented by analyzing their salinity and sodicity parameters. To accomplish this, three sets of soil samples up to a depth of 30cm from the land surface were collected for the first six months of the year 2005 from 28 locations and the ground water samples were monitored from seven existing dug wells and hand pumps covering the study region at intervals of 3 months. The EC and pH values of both the soil and ground water samples were estimated and the spatial and temporal variability mappings of these parameters were performed using the geostatistical analysis module of ArcGIS((R)). It was observed that the spherical semivariogram fitted well with the data set of both EC and pH and the generated kriged maps explained the spatial and temporal variability under different ranges of EC and pH values. Further, the recorded EC and pH data of soil and ground water during pre-Tsunami periods were compared with the collected data and generated variability soil maps of EC and pH of the post-Tsunami period. It was revealed from this analysis that the soil quality six months after the Tsunami was nearing the pre-Tsunami scenario (EC< 1.5dSm(-1); pH<8), whereas the quality of ground water remained highly saline and unfit for irrigation and drinking. These observations were compared with the ground scenarios of the study region and possible causes for such changes and the remedial measures for taking up regular agricultural practices are also discussed.     

底泥的氮、磷释放及其微生物影响的研究

氮和磷在自然界的循环已经引起了人们的关注,一方面因为氮和磷是生态系统中必不可少的营养元素,另一方面过剩的氮和磷会导致水域的富营养化 ,从而使生态平衡遭受破坏.本文综述了水体沉积物中氮和磷受微生物作用进行释放的影响,以及国内外的研究历史和现状.总结了氮磷微生物代谢的特点,并阐述了与传统认识相区别的最新发现和思想.本文试图从理论上说明微生物的氮磷释放机理,通过生物化学和分子动力的角度解释了细菌对氮磷的吸收和释放,即质子动势理论和Pho调控理论.目前,这一领域研究的热点是为了特殊的使用用途对于高效微生物的分离鉴别和组合培养,和对氮磷代谢的影响因素.     

Of Bodies, Place, and Culture: Re-Situating Local Food

In the US, an increasingly popular local food movement is propelled along by structural arguments that highlight the inequity and unsustainablity of the current agri-food system and by individually based arguments that highlight personal health and well-being. Despite clear differences in their foci, the deeper values contained in each argument tend to be neglected or lost, while local innovations assume instrumental and largely market-based forms. By narrowing their focus to the rational and the economic, movement activists tend to overlook (or marginalize) the role of the sensual, the emotional, the expressive for maintaining layered sets of embodied relationships to food and to place. This paper seeks to show that cultural and nonrational elements are fundamental to local food discussions. It proceeds from the assumption that, without them as full partners, the movement cannot be sustained in any felt, practiced, or committed way. To this end, it discusses the concept of place and bodies in place, as well as the connections between the ecological and the cultural, the sensual and the scientific. It offers a new set of questions and conceptual tools with which advocates and activists may “ground,” and thereby revalue and restore, the promise and practice of local food.     

THE EFFECTS OF WATER RESOURCES DEVELOPMENT ON ESTUARINE ENVIRONMENTS1

ABSTRACT. The Texas Water Development Board, the principal water resource planning agency of the State, has been conducting extensive estuarine data collection activities and associated research to determine the required quantity and quality of fresh water inflows necessary to maintain various environmental conditions in Texas estuaries to preserve the estuarine ecosystems. These activities are a consequence of a statutory directive to the Board to make provisions in its State Water Plan for the effects of upstream water resource development on the associated estuaries. This paper reports on the results of the first phase of an extensive estuarine research project. The objectives of the research project are to (1) define the interrelationships between estuarine ecosystems and fresh water and nutrient inflows, and (2) develop and test quantitative simulation techniques which describe these relationships. In order to accomplish the first objective, physical and chemical water quality data and biological data on the estuarine ecosystems are being collected, compiled and analyzed. The second objective is being satisfied by the development of hydrodynamic and ecologic simulation models of the estuarine environment.     

Sustainability of the dimension stone industry in Zimbabwe—challenges and opportunities

The rapid expansion of the dimension stone and black granite industry in Zimbabwe in the 1990s, a result of increasing domestic and international demand for black granite, has ushered in new challenges and opportunities for producers and beneficiaries alike. This article investigates the social, environmental and economic challenges emanating from the export boom, the economic opportunities presented by the expanding market and the potential role the robust industry could play in regional economic development and poverty alleviation. The article evaluates the long-term sustainability of the dimension stone industry and recommends the reinvestment of revenues into diversification of the regional economic base, upgrading of local infrastructure, further processing of rough stone before export and encouragement of micro-businesses to enhance sustainability. The author argues for modification of economic incentives to incorporate environmental and social objectives in order to enhance sustainability. The need for a holistic approach to policies affecting the exploitation, processing and marketing of granite resources and their products is recognized. More research on the operations of the industry is called for.     

全面系统完善我国生态文明党内法规体系

生态文明党内法规是中国特色社会主义法治体系的重要组成部分。党的十八大以来,随着生态文明写入党章,生态文明专门党内法规及相关党内法规对生态文明的规定得到丰富和发展。但由于建设时间短,加上我国正处于经济社会发展的转型期,生态文明党内法规体系建设存在相关党内法规制定的规范性和权限的明确性不够、法规的系统性和体系的层次性不够、条文的清晰性和规范的可操作性不够、适用的涵盖性和内外的衔接性不够等问题。为此本文建议：①统筹规划,开展生态文明党内法规的系统性和规范性建设;②重点建设,分级分领域制修订生态文明建设和改革的专门党内法规;③全面融入,将生态文明的建设和改革要求分解到各级各类党内法规中;④厘清关系,加强与国家生态环保法律法规的衔接和协调。     

AFTER THE 1993 FLOOD: A WATER AND SURFICIAL BED SEDIMENT QUALITY SCENARIO ON THE ILLINOIS AND UPPER MISSISSIPPI RWERS1

ABSTRACT: Effects of the 1993 flood on river water and sediment quality were investigated using historical data and data collected from the Illinois River and Upper Mississippi River in a post‐flood period. Overall the post‐flood results showed systematic reductions and individual changes in the water and sediment constituents. The reductions in sediment metals and nutrients were most obvious at the Keokuk and Lock and Dam 26 stations. By analyzing and comparing the physical changes to the changes in water and sediment constituents at each station, it was found that physical processes such as sediment entrainment and, more importantly, the removal of fine sediment to be the main causes for the reduced concentrations in sediment constituents. On the other hand, sediment redistribution and associated secondary contamination could have caused the emergence of several water and sediment constituents that were undetected before the flood.     

Review of studies on environmental impacts of recreation and tourism in Australia

The paper provides a review of available information on the impact of recreation and tourism on environments, particularly on vegetation and soil, in Australia, with an emphasis on forests. Efforts have been made to compare the current research and development situation in Australia with some overseas countries such as the United States and the United Kingdom. While many documents reveal that Australia has been experiencing an increasingly high level of recreation and tourism use in its environments, only limited studies of environmental impacts of recreation and tourism have been published. Compared with other developed countries, particularly the United Kingdom and the United States, Australia lags behind in undertaking research in this area. The results of these limited studies and some observations indicate that the most common recreational and tourist activities (such as bush walking, camping, horse-riding) can, if not well managed, adversely affect the values of Australian natural and semi-natural resources. Overall, they can affect the vegetation and other recreational sites physically and biologically. Physical effects include track formation, soil loss and/or compaction and an increase in fire frequency. Littering and water pollution are also seen as impacts associated with bush walking and camping. Biological effects include causing damage to vegetation, increasing risk of myrtle wilt disease and the spread of the soil pathogen,Phytophthora cinnamomi, as well as assisting weed dispersal. Based on the information reviewed, the authors suggest the following areas as priorities for future research into the environmental impact of recreation and tourism in Australia: determine the type of natural features that attract recreation use; determine the quantitative relationship between the impact and the level of recreation and tourism use for different activities within major vegetation habitats; ascertain site carrying capacity or environment thresholds for major vegetation habitats and recreation activities; and determine the impacts of recreation and tourism for major regions and major vegetation habitats where there have been considerable nature-based recreation and tourism activities.1998 Academic Press     

海洋石油开发中含油污水处理与溢油防治技术

海洋石油工业清洁生产的关键是防止油污染,而油污染的主要来源是日常排放的含油污水中的油及事故性溢油。首先概述了海上含油污水的处理方法及其原理,并结合实际论述了主要采用的处理工艺,并分析了各工艺技术的处理效果和存在的问题。文章还叙述了海上溢油事故及防止溢油事故发生所应采取的多方位预防措施;建立管理体系,加强管理,通过培训来提高全员操作管理水平,建立溢油处置应急计划和组织系统。在溢油控制方面建立海上溢油漂移模拟程序,对溢油进行实时监控,并对采用的溢油处理装置及方法进行了评述