对废旧沥青混合料再生利用的研究

大量的实验比较分析表明，可以通过一定比例的复合再生剂的调和作用，成功地使废旧沥青再生，且再生后沥青性质完全满足重交通道路石油沥青质量标准（GB50092—96）的要求。     

废旧轮胎橡胶材料在道路人行道上的应用初探

利用废旧橡胶材料铺设人行道,可解决大量废旧轮胎橡胶的利用问题,社会效益和经济效益显著。该文从环保、防滑、防噪、经济性等方面与传统的人行道材料进行比较分析,提出了利用废旧橡胶材料铺设人行道的优点,并对其材料结构、施工工艺、养护技术等进行了初步研究,可供广大市政工程管理者参考。     

Effects of waste disposal on benthic faunal succession on the abyssal seafloor

Strategies to predict, and thus limit, potentially detrimental environmental impacts of abyssal disposal of wastes are severely limited by our lack of knowledge of deep-sea processes and lack of opportunity to directly study waste disposal in abyssal environments. Probable successional sequences following burial of benthic faunas by sewage sludge and dredged material on the abyssal seafloor are drawn by analogy with well-known processes in shallow-marine water. Scales of change and recovery of abyssal benthic faunas from episodic deposition of waste material are examined by extrapolation from what is currently known about turbidite sedimentary provinces, in particular, the Venezuela Abyssal Plain and the Great Meteor East area of the Madeira Abyssal Plain. Results suggest that initial benthic faunal recolonization would take place within years following episodic depositions of waste on the abyssal seafloor. Anoxic conditions or chemical inhibitory effects may delay initial benthic recolonization for hundreds of years. Establishment of equilibrium benthic faunal assemblages probably takes hundreds to potentially thousands of years. Potentially detrimental effects dictate that the surface areas of individual waste deposits should be minimized and the deposits should be isolated by capping with nontoxic materials or chemical barriers.     

干法去除垃圾焚烧炉烟气中氯化氢的研究

采用干态固定床实验装置系统，研究去除垃圾焚烧炉烟气中氯化氢（HCl）气体的主要影响因素及其规律。结果表明：选择适当的摩尔比α和颗粒度较细小的吸收剂，吸收效率和吸收剂利用率会提高；温度对净化效率影响不大；HCl气体浓度（ρHCl）对吸收剂的吸收效率（ηHCl）有显著影响，ρHCl升高，则ηHCl增大；含有少量杂质的工业碱性废渣的利用率要大于纯化学试剂吸收剂；HCl气体排放标准为75mg/m^3时，可采用干法去除垃圾焚烧炉烟气中的HCl气体。     

Out of sight is not out of mind: Public opposition to ocean incineration

Abstract

During the early 1980s, ocean incineration emerged as one of the hottest issues in the field of hazardous waste management. Ocean incineration involves the thermal destruction of liquid hazardous wastes on specially designed ships and was promoted by the Environmental Protection Agency and powerful industry groups as part of the solution to liquid hazardous waste disposal. Attempts to adopt ocean incineration led to heated debate and apparent defeat of efforts to introduce this technology. The arguments advanced by proponents and opponents are examined. Success of environmental groups opposed to ocean incineration is explained with reference to technical, environmental, socio‐political, and legal factors. Ocean incineration, promoted as a solution to “not‐in‐my‐backyard”; opponents, instead ran afoul of region wide opposition by coastal residents for whom the sea is a common backyard.     

加工过程中假废品成因与判识方法研究

结合机械零件的加工过程,从测量基准与设计基准不重合和定位基准与设计基准不重合2方面界定了假废品的科学含义.探讨了产生假废品的主要原因,分析了加工中工艺基准与设计基准不重合时,用极值法换算工序尺寸的方法及各组成环误差之间的补偿规律.基于工艺尺寸链理论,确定了合格品、假废品、废品在零件公差带上的分布区域,提出了假废品的判识...     

废弃水泥混凝土道面在路面半刚性基层中再生利用的试验研究

水泥混凝土道路改建时形成的废弃混凝土块的有效利用是一个亟待解决的问题。通过对破碎、筛分后的废弃混凝土性能研究发现：再生料中含有部分结晶水,会影响最佳用水量和最大干密度的确定;再生粗集料和天然碎石具有相当的力学性能。对水泥稳定再生集料进行了配合比设计,并通过性能测试发现：水泥稳定再生集料具有较好的强度,抗冻性能,水稳定性能;和水稳天然集料的抗压回弹模量相当;抗收缩变形性能较差。控制再生细集料掺加量可以非常好的满足半刚性基层材料的要求。     

保温板废料在沥青混合料中的应用

绍兴中基建筑节能科技有限公司在生产发泡工艺保温板过程中,不断产生大量残次品。考虑将废料磨细,取代部分矿粉添加到路面沥青混合料中。通过全部使用普通矿粉和回收材料取代部分矿粉对比试验研究,发现该废料取代部分矿粉后,混合料的高温稳定性能和劈裂强度未有明显变化,结果表明该废料可以用来取代部分矿粉应用于沥青路面,实现废料的资源化利用。     

公路施工废弃物回收物流的建构及损益分析

该文通过公路施工废弃物物流的现状及公路施工过程中废弃物产生的原因和特点,提出了公路施工废弃物物流的含义并构建了公路施工废弃物物流流程图,简单分析了废弃物再利用的损益。     

大型居住社区市政设计若干问题探讨

该文对大型居住社区市政设计的若干问题,如路网规划及周边配套道路研究、合理布置横断面及公交车站的形式、彩色路面设计、环保节能型市政附属设施设计、建筑废弃物利用等进行了探讨,并建议上海三林基地采用交通信息动态采集系统。