信息安全产业与信息安全经济分析

随着信息化的推进和信息产业的发展 ,信息交换已经成为信息社会人们享用信息的主要途径 ;信息系统的不断扩大、电子政务的不断深化、信息共享范围的不断增加 ,都对信息安全提出了越来越高的要求。信息安全产品的不断涌现 ,部分信息安全产品趋于成熟 ,信息安全产业作为一种新型的产业正在逐渐形成并呈现出高增长的势头 ;信息产品市场应用需求相对集中 ,市场主体相对分散的特性要求信息安全服务要逐步完善 ,信息安全产品监管应不断加强 ,由此而产生的信息安全经济问题应受到重视。笔者从信息安全产品入手 ,深入分析了信息安全产业和信息安全经济的发展状况、存在的问题等 ,提出了信息安全产业和信息安全经济的发展趋势。     

A review on the use of waste glasses in the production of cement and concrete

The use of recycled waste glasses in Portland cement and concrete has attracted a lot of interest worldwide due to the increased disposal costs and environmental concerns. Being amorphous and containing relatively large quantities of silicon and calcium, glass is, in theory, pozzolanic or even cementitious in nature when it is finely ground. Thus, it can be used as a cement replacement in Portland cement concrete. The use of crushed glasses as aggregates for Portland cement concrete does have some negative effect on properties of the concrete; however, practicle applicability can still be produced even using 100% crushed glass as aggregates. The main concerns for the use of crushed glasses as aggregates for Portland cement concrete is the expansion and cracking caused by the glass aggregates. This paper summarizes the progresses and points out the directions for the proper uses of waste glasses in Portland cement and concrete.     

论印染产业循环经济发展模式

在对我国的印染业现状、环境危害、格局以及发展趋势进行说明的基础上,对印染产业发展循环经济的模式进行了探讨;通过建立循环经济模式的印染工业园,运用循环经济理念进行园区规划,采取单一产品的规模化处置以及水的循环利用,最终建立循环经济产业共生体系。     

“十一五”期间我国水泥工业的污染减排形势

水泥工业是我国国民经济发展的重要基础性产业,同时也是我国“十一五”期间节能减排的重点行业。对我国水泥工业发展和主要污染物排放现状进行分析后发现,我国水泥工业存在产业梯度转移带来污染转移的风险。同时在现状分析基础上对“十一五”水泥工业污染减排的形势进行了评估。根据保守预测,到2010年,我国水泥工业的粉尘排放量和二氧化硫排放量同比2005年将分别削减29％和13％,根据乐观预测,2010年分别比2005年削减58％和26％。     

浅论水泥厂建设生产对生态环境的影响

根据辽宁省“十一五”规划明确提出要把辽阳建设成为辽宁重要的水泥产业基地的要求,辽阳市经济发展委员会已制定辽阳市水泥产业发展规划,本文就水泥生产线建设和运营对当地的生态环境产生的影响进行探讨。并提出了生态恢复的根本措施。     

半导体行业含氟废水处理的研究

在过去几年,中国的半导体工业得到了迅速的发展,同时也带来了新的环境问题,其中尤以含氟废水的危害最为严重。文章详细介绍了某半导体企业含氟废水处理站,包括含氟废水的来源,危害,常用的处理方法,实验情况,本工程采用的工艺流程和运行情况等。实验数据和工程运行情况都证明,pH值为7．5—8．5时,以化学沉淀法和混凝沉淀法处理含氟废水效果最好。实践证明利用强酸强碱调节废水pH值后,采用CaCl2处理含氟废水,具有操作简便和处理费用低等优点,同时针对CaF2沉淀对处理设备的影响提出了有效措施。     

内蒙古煤化工废水零排放中浓盐废水处理技术及存在的问题讨论

内蒙古自治区煤炭储量位居全国首位,同时又属于严重缺水地区,煤化工、盐化工等化工废水零排放为成了热点话题。浓盐水的处理成为制约化工废水零排放的关键技术。介绍了浓盐水的处理技术及存在的问题同时对主要处理技术的投资行进了比较分析。     

水泥行业SO2和NOX排放总量核算方法选取

就水泥企业SO₂和NO_X排放总量核算方法的选取问题,以3家不同类型水泥企业为例,以监测数据法核算结果为依据,对排污系数法和物料衡算法的核算结果进行统计学描述和差异性检验。结果表明:排污系数法能基本反映各类企业SO₂、NO_X实际排放状况;物料衡算法不适合各类企业NO_χ的总量核算;对含熟料生产线的水泥企业,物料衡算法核算得出的SO₂排放量偏小,实际工作中不建议采用;对粉磨站水泥企业,物料衡算法与排污系数法均能反映实际SO₂排放情况,建议以"取大值"原则选取。     

水泥窑协同处理危险弃废物的应用

危险废物对生态环境和人类健康构成严重的危害。水泥窑协同处理危险废物能同时实现减量化、无害化以及资源化,是最有效的处理危险废物的方法。大连东泰产业废弃物处理有限公司利用水泥窑协同处理危险废物。实现废物处置与水泥生产的优化组合。     

Supply chain collaboration to achieve toxics use reduction

The use of lead poses significant hazardous occupational exposure to workers in the electronics industry, and also causes environmental challenges at the end of product life. For the past decade, there has been a global effort in the electronics industry to initiate a move towards using lead-free materials for the production of printed circuit boards. However, there are technical and economic challenges, such as long term reliability and rework capability, that remain to hinder the universal implementation of lead-free materials. As a result, many electronics products are still currently manufactured and assembled using materials containing lead.The costs for investigating and evaluating the various lead-free electronics materials and manufacturing processes can be cost prohibitive for an individual company to undertake alone. Consequently, the New England Lead-free Electronics Consortium was formed as a collaborative effort of New England companies spanning the electronics supply chain to help move the industry towards lead-free electronics. The Consortium is a working collaboration of industry, government, and academia. For the past several years, the Consortium has conducted research and testing for using various lead-free materials for the manufacture of printed circuit boards. The Consortium has been successful in identifying lead-free materials and processes to address the challenges of assembly and rework. The Consortium is currently conducting research to address the long-term reliability challenge of lead-free electronics.