From waste hot-pot oil as carbon precursor to development of recyclable attapulgite/carbon composites for wastewater treatment

The utilization of waste products as valuable materials was a technical imperative for waste management. In this study, the cost-effective attapulgite/carbon(APT/C) composite was developed for wastewater treatment using waste hot-pot oil as a carbon precursor through a facile one-step calcination process. The APT/C composite prepared at 300°C exhibited the excellent adsorption capacity and rapid equilibrium rate over a broad p H range for the removal of various pollutants. More importantly, the removal ratios of the composites toward Methyl Violet and tetracycline still remained 77.6% and 60.2% of the initial adsorption capacity after ten adsorption–regeneration cycles via a facile thermal regeneration strategy, respectively.Beyond all doubt, this research provided a feasible and economical way for the sustainable utilization of waste hot-pot oil in wastewater treatment, achieving the concept of disposal waste with waste and recycling.     

论地质灾害防治对策及其系统决策

本文在讨论地质灾害基本属性的基础上,提出了地质灾害防治的基本对策,并基于多目标决策特点,构造了三类地质灾害防治决策最优化模型。     

基于组件式GIS的重大危险源管理系统的设计与开发

基于组件式GIS技术建立城市重大危险源管理系统。概述了组件式GIS的技术特点 ,结合当前城市重大危险源管理的要求 ,利用该技术从系统结构、系统功能、数据库结构等方面完成城市重大危险源管理信息系统的设计。实现了反映城市重大危险源数据的图层的建立以及重大危险源的评价分级功能 ,并提出了危险源的专题图分析和危险事故分析方法 ,完成了城市重大危险源管理系统的开发。     

基于SPA模型的煤矿瓦斯危险源风险评价

根据危险源理论和三类危险源的观点,采用集对分析(SPA)方法,进行了安全一事故集对的同异反分析,指出应采取措施控制不确定项,尤其要控制其中的第二类、第三类危险源才能使系统趋于安全状态;同时建立了煤矿瓦斯危险源风险评价模型,通过联系度的计算得出煤矿瓦斯的安全等级.研究表明,将集对分析方法应用于某煤矿瓦斯危险源风险评价,计算简单,结果较为精确、可靠,为不确定系统的评价提供了一条新思路.     

Modeling thermal analysis for predicting thermal hazards relevant to transportation safety and runaway reaction for 2,2′-azobis(isobutyronitrile)

The pure decomposition behavior of 2,2′-azobis (isobutyronitrile) (AIBN) and its physical phase transformation were examined and discussed. The thermal decomposition of this self-reactive azo compound was explored using differential scanning calorimetry (DSC) to elucidate the stages in the progress of this chemical reaction. DSC was used to predict the kinetic and process safety parameters, such as self-accelerating decomposition temperature (SADT), time to maximum reaction rate under adiabatic conditions (TMR_ad), and apparent activation energy (E_a), under isothermal and adiabatic conditions with thermal analysis models. Moreover, vent sizing package 2 (VSP2) was applied to examine the runaway reaction combined with simulation and experiments for thermal hazard assessment of AIBN. A thorough understanding of this reaction process can identify AIBN as a hazardous and vulnerable chemical during upset situations. The sublimation and melting of AIBN near its apparent onset decomposition temperature contributed to the initial steps of the reaction and explained the exothermic attributes of the peaks observed in the calorimetric investigation.     

火力发电厂汽轮机的安全评价

介绍了火力发电厂设备中的汽轮机的本体结构, 以及汽轮机的安全评价内容.针对汽轮机的本身特点和安全评价内容,提出了两种安全评价方法对汽轮机进行安全评价.     

企业实用安全评价方法初探--一种简单易行的企业自我评价方法

分析了当前我国安全评价中存在的问题,探讨一种企业实用的安全综合评价方法.介绍该方法的评价原理、程序和步骤,总结该评价方法的功能、特点和适用范围,提出改进方向.     

液态烃球罐检验风险评价及防范措施

运用危害识别、风险评价理论,对液态烃球罐的检验过程中容易发生的危害进行了分析,找出了存在的重大风险,制订了防范措施,保证了安全检验.     

武钢职业安全健康管理

根据武钢自身安全管理工作的需要,提出了一套以科学的方法、务实的态度、严谨的作风,开展以危险辨识、风险评价、危险控制为核心的职业安全健康管理工作思路,从而使生产环境、职工素质、管理水平等方面均取得较大改善和提高,效果显著。     

放射性污染的危害及防护措施

环境巾的各种放射性污染都能影响人类健康。介绍了放射性污染性质、来源和特点,重点介绍了各种影响人类生活的放射性污染。和环境中的其他污染小同,它不易察觉,但容易在人体中积累,人们要关注放射性污染,对它有一个科学的认识,才能保护自身的健康。