燃煤电厂“烟塔合一”技术在环评技术评估中存在的问题与建议

介绍了国内外燃煤电厂“烟塔合一”技术的应用现状，阐述了我国已评估“烟塔合一”燃煤电厂的特点，重点对我国采用此技术的项目环评技术评估情况进行了分析，并针对评估中存在的预测结果不确定及复核困难、环境影响认识不统一等问题提出了相关建议。     

CuO/γ-Al2O3联合脱硫脱硝技术研究进展

综述了CuO／γ-Al2O3吸收／催化剂的制备发展过程，吸附的流程化学及原理和该项技术由固定床、流化床到移动床的发展过程。分析了该项技术在实际应用中存在的问题，并指出了以后的发展方向。     

我国环境保护技术述评

介绍了我国对水污染、大气污染、固体废物污染及物理污染的控制技术及环境监测技术的发展水平，分析了我国环境保护技术存在的关键问题；并根据环境技术管理和环保产业发展的需求，提出了我国环境保护技术发展的近期目标和“十一五”期间的重点发展领域。     

电化学水处理技术的研究和应用

介绍了电化学技术的分类，总结了电化学技术在处理有机废水、重金属离子废水和氨氮废水方面的研究及应用现状，并指出了该技术在目前的应用中所存在的一些问题，探讨了今后的发展方向。     

低温等离子体技术降解含氮硫废气的研究进展

论述了采用低温等离子体技术处理含氮硫废气以及恶臭气体的反应机理和研究现状，重点介绍了低温等离子体技术与催化、吸附、光催化等技术的联合技术，分析了低温等离子体联合技术存在的问题及发展方向。     

废旧锂离子电池资源化技术研究

通过介绍废旧锂离子电池的组成成分及近年来废旧锂离子电池资源化处理技术的研究进展，提出目前主要回收方法有溶解分离法和直接回收正极材料的新型方法等，并对现有研究中存在的二次污染、安全性问题进行了初步探讨。     

电化学技术在废水处理中的应用

电化学技术包括电化学氧化、电芬顿和电絮凝等多种形式。本文介绍了电化学技术的原理，综述了电化学技术在各类废水处理中的应用情况，分析了其在废水处理方面的独特优势和广阔前景，总结了该技术在实际应用中存在的问题，并指出了今后的发展方向。     

离子交换树脂法处理含铜废水的研究进展

介绍了离子交换树脂在处理不同类型的含铜废水中的应用，列举了络合铜废水、游离铜废水及多金属杂质含铜废水中适用的树脂种类及应用实例，对工业应用中存在的一些问题和对策做出总结归纳，并针对该技术的发展方向提出展望。离子交换树脂法是一种较为有效的废水处理方法，对常规浓度和低浓度的含铜废水的处理效果均较好，可将废水有效资源化利用。     

微生物-光-电化学耦合技术降解污染物和回收能源的研究进展

微生物电化学技术能同时实现污染物去除和能量回收，但存在污染物去除种类有限及产能效率低的局限，近几年将可再生的太阳能引入微生物电化学技术的微生物-光-电化学耦合技术应运而生。本文简要介绍了微生物-光-电化学耦合技术的发展背景和研究现状，对该技术现有的耦合形式进行分类，并对各种形式的耦合机理进行详细的阐释，最后对其未来的发展进行了展望。     

铬渣解毒处理处置技术综述

简要介绍了国内外铬盐生产现状和铬渣堆存现状，对铬渣解毒处理处置技术的五大类方法进行了评述，着重对铬渣干法解毒处理处置技术进行了研究。分析了各方法的优缺点和存在的主要问题，提出了铬渣治理要求及今后的发展方向。     

废塑料催化裂解制燃料油

用自制的L不列催化剂对聚乙烯，聚丙烯，聚苯乙烯及其按不同比例混合的3种废塑料催化裂解制燃料油进行了研究。试验结果表明：混合废塑料料经过催化解制得的90^#汽油和0^#柴油的质量均达到国家标准。油品品质的好坏主要由废塑料的种类，催化剂和催化改质温度3个因素决定。     

废旧塑料催化裂解制备汽油

介绍了由废旧塑料通过热裂解和催化裂解制备汽油的方法,着重介绍了由废旧塑料制得的重油经催化裂解获取汽油的反应装置,催化剂、反应条件,产物分析和可能的反应途径。     

In Situ flushing of contaminated soils from a refinery: Organic compounds and metal removals

This article demonstrates the applicability of in situ flushing for the remediation of soil contaminated with petroleum hydrocarbons at a Mexican refinery. The initial average total petroleum hydrocarbon (TPH) concentration for the demonstration field test was 55,156 g/kg. After six weeks of in situ flushing with alternate periods of water and water/surfactant, an average concentration of 1,407 mg/kg was reached, achieving a total removal efficiency of 98 percent. At the end of the process, no hydrocarbons such as diesel; gasoline; benzene, toluene, ethyl benzene, and xylene (BTEX); or petroleum aromatic hydrocarbons (PAHs) were found. Iron washing achieved a removal efficiency of 70 percent, and for vanadium, the removal efficiency was 94.4 percent. The volume of soil treated was 41.6 m³ (38 m²), equivalent to 69.5 tons of soil. A rough calculation of the process costs estimated a total cost of $104.20/m³ ($114.00/m²). Our research indicates that there are a few studies demonstrating in situ flushing experiences under field conditions where both organic (TPH, diesel, gasoline, PAHs, BTEX) and metal (iron and vanadium) removals are reported. © 2004 Wiley Periodicals, Inc.     

Alternative method of groundwater sparging for petroleum hydrocarbon remediation

An alternative method of in-situ groundwater sparging, termed density-driven convection (patent pending), is presented. This method has been successfully used to remediate eight underground storage tank releases involving a wide distillation range of petroleum hydrocarbons (gasoline to waste oil) and in a variety of site soils (clay to sandy gravel). Application of the density-driven convection method is detailed in a case study. The system, installed to remediate a gasoline and diesel release from an underground storage tank, was operated and monitored for a period of one year. Monitoring data indicate reductions in total petroleum hydrocarbon concentrations in groundwater and in soil. Concentrations of aromatic hydrocarbons (benzene, toluene, ethylbenzene, xylenes, and naphthalene) also decreased in both media. Stimulation of natural biodegradation, the primary mechanism of removal, occurred rapidly. Natural biological activity gradually declined over the subsequent 150 days. After one year of operation, the sparging system has achieved or is rapidly approaching the regulatory cleanup goals for both soil and groundwater, including reduction of dissolved concentrations below maximum contaminant levels established under the Safe Drinking Water Act.     

Conversion of Mixed Low-Density Polyethylene Wastes into Liquid Fuel by Novel CaO/SiO<Subscript>2</Subscript> Catalyst

Plastic wastes disposal can be done by various methods such as landfill, incineration, mechanical and chemical recycling but these are restricted due to some environmental, economic and political problems. Conversion of these plastic wastes into valuable products by degradation is the best option. In the present work waste low density polyethylene was degraded by catalytic process using CaO/SiO₂ as mixed catalyst. The conditions for catalytic degradation were optimized for the production of maximum liquid fuel. It was found that the yield of liquid product was up to 69.10 wt% at optimum condition of temperature (350 °C), time (90 min) and catalyst feed ratio (1:0.4). Liquid fuels obtained from the catalytic degradation were further separated into various fractions by fractional distillation. Composition of liquid fuels was analyzed by FTIR spectroscopy, which showed that the liquid fuels mostly consist of paraffinic and naphthenic hydrocarbons. Different fuel properties such as density, specific gravity, American petroleum institute gravity (API gravity), viscosity, kinematic viscosity, refractive index, refractive intercept and flash point of both the parents and various fractional fuels were determined. All the properties of the obtained fuels are in close agreement with the fuel properties of gasoline, kerosene and diesel. It was found that our catalyst is very much efficient in terms of time, degradation temperature and amount of catalyst.     

An investigation on the fuel savings potential of hybrid hydraulic refuse collection vehicles

Refuse trucks play an important role in the waste collection process. Due to their typical driving cycle, these vehicles are characterized by large fuel consumption, which strongly affects the overall waste disposal costs. Hybrid hydraulic refuse vehicles offer an interesting alternative to conventional diesel trucks, because they are able to recuperate, store and reuse braking energy. However, the expected fuel savings can vary strongly depending on the driving cycle and the operational mode. Therefore, in order to assess the possible fuel savings, a typical driving cycle was measured in a conventional vehicle run by the waste authority of the City of Stuttgart, and a dynamical model of the considered vehicle was built up. Based on the measured driving cycle and the vehicle model including the hybrid powertrain components, simulations for both the conventional and the hybrid vehicle were performed. Fuel consumption results that indicate savings of about 20% are presented and analyzed in order to evaluate the benefit of hybrid hydraulic vehicles used for refuse collection.     

浅谈大功率柴油机余热发电

介绍了中山柴油机发电厂余热发电技改项目,并分析论述了利用大功率柴油机排烟余热发电的优点.在油价高企的背景下,实施余热发电是节能环保的有效措施之一.     

Emissions from US waste collection vehicles

This research is an in-depth environmental analysis of potential alternative fuel technologies for waste collection vehicles. Life-cycle emissions, cost, fuel and energy consumption were evaluated for a wide range of fossil and bio-fuel technologies. Emission factors were calculated for a typical waste collection driving cycle as well as constant speed. In brief, natural gas waste collection vehicles (compressed and liquid) fueled with North-American natural gas had 6–10% higher well-to-wheel (WTW) greenhouse gas (GHG) emissions relative to diesel-fueled vehicles; however the pump-to-wheel (PTW) GHG emissions of natural gas waste collection vehicles averaged 6% less than diesel-fueled vehicles. Landfill gas had about 80% lower WTW GHG emissions relative to diesel. Biodiesel waste collection vehicles had between 12% and 75% lower WTW GHG emissions relative to diesel depending on the fuel source and the blend. In 2011, natural gas waste collection vehicles had the lowest fuel cost per collection vehicle kilometer travel. Finally, the actual driving cycle of waste collection vehicles consists of repetitive stops and starts during waste collection; this generates more emissions than constant speed driving.     

生物刺激与生物强化联合修复柴油污染土壤

从柴油污染土壤中筛选分离出一株高效降解柴油的菌株CY-1,考察了自然衰减修复、生物刺激修复、生物强化修复以及生物刺激-生物强化联合修复等4种修复方法对土壤中柴油的降解能力及降解过程中几种土壤微生物酶活性的变化。实验结果表明:该菌为假单胞菌属;采用生物刺激-生物强化联合修复初始柴油质量分数为2.70%的柴油污染土壤,经过31 d的降解,柴油质量分数降至1.09%,柴油去除率达59.6%;经生物刺激-生物强化联合修复,土壤脱氢酶活性和荧光素二乙酸酯水解酶活性最高;通过生物刺激处理可使土壤脲酶活性和磷酸酶活性达到最高。     

柴油低温临界吸收法回收装车挥发油气

研究了采用柴油低温临界吸收法回收装车挥发油气的效果。实验结果表明：按装车挥发油气中的总烃体积分数为20.88%、装车挥发油气流量为280 m³/h、年运行时间为2 668 h计，装置年回收油气量为291 t，装置年最大运行功率为206.770 MW，装置投资回收期为3 a;处理后净化气中的总烃体积分数为1.24%，排放质量浓度低于25 g/m³，油气回收率达95%。处理后净化气满足GB 20950—2007《储油库大气污染物排放标准》，取得了较好的环保效益和经济效益。