新洲占家河闸口涵洞水压爆破拆除

介绍新洲占家河闸口涵洞水压爆破拆除的过程及其经验。     

Decreased emission of nitrous oxide from delivery wards—case study in Sweden

The very potent greenhouse gas nitrous oxide (N₂O) is widely used as a mild anaesthetic for mothers in delivery work in Sweden. As a part of the Stockholm County Council environmental program it was decided in 2002 that the emissions should be drastically reduced. Different ways were theoretically evaluated, and catalytic splitting to nitrogen and oxygen gas (N₂ and O₂) was chosen for a demonstration installation. A Japanese commercial unit for treatment of mixed anaesthetic gases (Anesclean® from Showa Denko K.K.) was thoroughly modified and installed at the Karolinska University Hospital at Huddinge in Stockholm in 2004. The destruction of N₂O was optimised and studied for 2 years. Data from both collection and destruction are given in the article. Of the collected N₂O more than 95% was split to N₂ and O₂ in the very stable system. The overall emission decrease was mainly dependent on the share that could be collected in the specific exhaustion system as compared to the normal room ventilation. Life cycle assessment (LCA) and life cycle costing (LCC) were used to evaluate the actual environmental value and economical cost for the process. Important factors are pointed out.     

喷丸亚光机的危害性分析与无害化设计

从安全设备工程学的观点出发 ,分析了喷丸亚光机这一特种机械的危险因素和有害因素 ,阐述了在防尘、降噪、安全、耐用等方面所采取的相应防护措施和关键技术。提出了使该设备达到安全化、无害化的设计方法 ,使机械设计制造与工业安全卫生科学紧密结合 ,不仅具有生产功能的实用性 ,而其加工性能和相关指标达到或优于国外同类设备。     

含磷和硫化钠污染土壤修复及无害化处理可行性探讨

通过土壤性质分析针对含磷和硫化钠污染土壤,进行修复处理技术及实践应用可行性探讨,提出灌注氧化剂的化学修复方案及应用措施与对策,可使含磷和硫化钠污染土壤无害化,该法可操作,效果好,节约修复成本,防止二次污染物迁移．有效修复土地功能。     

生态破坏等级的自然度研究及应用——以海南岛为例

本文讨论了生态环境评价中的自然度方法,并考虑土壤的重要性,提出了土壤自然度的概念和综合自然度评价方法,为生态破坏研究提供了一种比较客观简捷的分析手段。      

Destruction of PCDD/Fs by gliding arc discharges

PCDD/Fs have been become a serious issue because of their toxicological effects and associated adverse health implications.In this study,the gliding arc plasma was tested for treatment of polychlorinated dibenzo-p-dioxins(PCDDs)and polychlorinated dibenzofurans (PCDFs),which was synthesized from pentachiorophenol in atmospheric condition at 35℃with or without the catalysis of CuCl_2. From the experiment,we found that the destruction efficiency of PCDD/F homologues after gliding was discharge ranged from 25% to 79%.This result demonstrates that gliding arc plasma is an effective technology to decompose PCDDs/Fs in flue gas.A plausible degradation mechanism for PCDD/Fs by gliding arc was discussed.Finally,a multistage reactor structure of gliding arc was proposed to upgrade removal efficiency for PCDD/Fs.     

硫酸锰废渣的浸出毒性及无害化处理的研究

研究了硫酸锰废渣的主要金属元素组成及浸出毒性,并采用锰渣加石灰混合的方法进行无害化处理。结果表明,硫酸锰废渣浸出液中Mn和Cd含量超标,锰渣加石灰混合的方法能有效降低废渣的浸出毒性,锰渣与石灰的质量比为25∶2效果最佳。     

油田钻井废泥浆无害化处理技术研究

介绍了以整体法处理钻井废泥浆所用无害化固定剂的配方及处理效果；全井处理工艺及处理效果，覆土还田后作物体内重金属残留．用本技术处理分散型钻井废泥浆（毒性最大的）可达到国家对工业固体废弃物排放的要求．处理费用为２０元／ｔ，是已知各类方法中最低的．     

超声强化O3氧化技术在水处理中应用的研究

综述超声空化效应降解水中有机物的机理及超声强化Ｏ３的氧化能力，介绍超声强化Ｏ３氧化技术在水处理领域中的应用研究进展。     

危险废物无害化管理大数据分析应用研究初探

环境质量改善是我国"十三五"期间环保工作的核心,危险废物管理是影响环境质量的重要因素。近年来,我国危险废物污染防治工作在制度建设和能力建设等方面取得积极进展,但仍存在底数不清、减量不足、利用不畅等问题,频发的危险废物非法倾倒和掩埋已成为突发环境事件的重要诱因,严重威胁环境安全和人体健康。严峻的环境形势迫使我国改进传统的危险废物管理方式。文章从危险废物无害化管理现状分析入手,提出构建危险废物无害化管理大数据应用研究平台的建议,实现依靠数据管理、数据决策和预测性分析的构想。