一体化氧化沟固液分离和回流机理探讨

论述了一体化氧化沟中固液分离和污泥回流的基本原理，提出了固液分离器的表面负荷ＳＯＲ与污泥层厚度、回流污泥浓度等有关，计算模型为ＳＯＲ＝１１＋Ｒ·ＨｗＴ·ＣｕＣ０．固液分离器与二沉池的功效显著不同，所需面积远低于二沉池，在固液分离器内不发生污泥压缩、回流及时，不易受污泥沉降性能影响，是值得推荐的一体化氧化沟固液分离方式．     

Progress in carbon dioxide separation and capture： A review

This article reviews the progress made in CO2 separation and capture research and engineering. Various technologies, such as absorption, adsorption, and membrane separation, are thoroughly discussed. New concepts such as chemical-looping combustion and hydrate-based separation are also introduced briefly. Future directions are suggested. Sequestration methods, such as forestation, ocean fertilization and mineral carbonation techniques are also covered. Underground injection and direct ocean dump are not covered.     

膜法回收有机蒸汽进展

简要介绍了有机蒸汽（voc）的来源、分类及其对人体和环境的危害。介绍了膜分离技术在有机蒸汽回收中应用的工作原理、工艺设计特点和要求等。简要介绍了几种从VOC中回收溶剂的方法,并分析如何进行选择。较详细地论述了蒸汽渗透、气体膜分离、膜基吸收三种膜技术用于废气中挥发性有机化合物去除和回收的研究进展。论述了国外采用膜技术回收废气中VOC的工业应用情况,而中国的膜分离法回收VOC处于起步阶段,并就今后的发展方向进行了评述。     

安全、高效的基于钯膜的氢气分离技术

系统介绍了钯膜分离这种流程简洁、静音紧凑的氢气纯化技术和钯膜对氢气具有单一选择性分离原理所达到的安全、高效氢气分离提纯的有益效果。综述了钯基复合膜的制备方法并对比了不同制备方法之间的优缺点。重点分析了钯膜分离技术相比于低温蒸馏、变压吸附、深冷分离等常规氢气分离技术的优势。总结了钯膜反应器应用于原位重整制氢反应、催化加氢、脱氢反应等过程中,在推动反应热力学平衡、提高反应转化率等方面优于传统反应器的技术特征。     

厌氧微网分离反应器（AMSB）系统运行优化研究

对厌氧微网分离反应器进行运行优化研究,AMSB对污染物的去除主要依靠微网对颗粒性污染物的截留实现的,对溶解性污染物的去除并不理想.随着HRT延长,COD去除率略有增加;污泥颗粒化有助于降低膜污染速率;加温并不能显著提高污染物去除效果,但却加重了膜污染;增加搅拌增强了AMSB内部的传质作用,污染物去除率得到提升的同时,膜污染速率显著加快;综合污染物去除、微网抗污染能力和运行维护等方面,最终选择升流式作为推荐的AMSB构型.     

Development of a framework to implement a recycling program in an elementary school

This study developed a system to plan, evaluate, implement, and monitor a waste reduction and source-separation program, which was then tested through a field study in a New York City elementary school. Despite efforts to implement integrated waste management in elementary schools, appropriate planning tools that document performance and support program development are lacking. To fill this gap, a system for analyzing existing programs was developed. After identifying the phases required for a successful program, a scoring system was developed to quantify the performance of existing programs. To assess existing protocol, recommendations from leading municipalities were reviewed, and the performance of existing programs was quantified within the scoring system. The existing protocol was found to contain similarities, but an overarching approach was needed to connect the provisions with programs that have been successfully deployed. From this analysis, a scoring system was developed to take into consideration the major elements needed for a waste reduction and source-separation plan, colloquially referred to as a recycling plan, as well as the specifics of implementation. This system allows for the review of programs already developed, and can pinpoint limitations prior to implementation. The framework was evaluated through the test case school, with both waste audit data and diagrams. From the lessons learned, successful techniques and recommendations for utilizing this framework were created.     

油气膜分离回收技术在汽油装车系统的应用

炼化企业油气回收作为一种清洁生产工艺,具有较好的应用前景。2006年5月,哈尔滨石化公司建成应用膜分离技术的油气回收装置,并将该技术应用于汽油装车系统。经过现场评价,装置处理能力为650m~3/h时,油气排放浓度为14 g/m~3,油气处理效率达97%,均满足《储油库大气污染物排放标准》(GB 20950 -2007)的要求。     

喷射诱导气浮用于废水脱油的动力学研究

喷射诱导气浮应用于污水脱油前景广阔。建立了数学模型，进行了单级间歇模拟实验，测定了脱油动力学常数及极限脱油浓度。验证了脱油动力学方程，利用实验结果，得到了用以计算多模型中参数的关联式。所提出的数学模型为建立设计计算和药剂评价方法提供了依据。     

古商业街木结构建筑防火间距的数值模拟研究

古商业街木结构建筑较多,防火间距先天不足,发生火灾后蔓延迅速,有必要开展木结构建筑引燃特性研究以获得合理的防火间距设置参数.以古商业街为研究对象,以临界温度和热辐射强度作为着火建筑对面木结构建筑被引燃的判定指标,综合考虑环境风速、建筑间距、火源功率、喷淋系统等因素,运用火灾动力学模拟软件FDS分析系列火灾场景下的温度和...