我国废弃塑料回收再利用的现状及对策

废旧塑料难于自然降解,所造成的环境污染日趋严重,回收利用为处理废旧塑料垃圾开辟了减量化、无害化、资源化的道路。通过分析我国废弃塑料产生和回收再利用处理技术的现状,进一步探讨了符合我国国情的废旧塑料回收利用对策。     

回收电镀废液制取鞣革剂方法的研究

在高浓度的含铬、铜电镀废液中加入亚硫酸钠还原Cr6+为Cr3 +;再加入硫化钠去除铜 ;然后加入氢氧化钠调节pH值使Cr3 +生成氢氧化铬沉淀 ;最后加入一定量硫酸溶解氢氧化铬制成鞣革剂———碱式硫酸铬 ,且出水水质达到国家工业废水排放标准     

碱矿渣水泥基铬渣固化体的性能研究

使用碱矿渣水泥基材料对含铬废渣进行了固化研究，并力图使固化体能够用作建材制品。结果表明，用碱矿渣水泥基材固化铬渣是可行的，固化体抗压强度达到了５０ＭＰａ以上，且具有良好的抗渗性能和较低的六价铬离子浸出率，能够用作建筑材料。     

处理化肥厂造气废水新型催化剂的研究

利用合成的氧化还原树脂进行了实际废水的处理 ,取得了良好的效果 ,开辟了废水处理的一条新途径。     

城市垃圾焚烧发电系统热平衡分析与优化方案

以城市垃圾焚烧过程的热工计算为基础，深入研究了热平衡分析与能量回收之间的关系。针对国内在垃圾焚烧发电领域存在的主要问题，提出了传统工艺的优化方案，并对我国城市垃圾焚烧发电的能量回收利用前景进行了预测分析。     

甘蔗糖蜜酒精废液色素特性及脱除的研究

定性地分析了甘蔗糖蜜酒精废液色素的主要成分，并对其颜色特征及稳定性进行了深入的研究，通过对离子交换树脂，吸附树脂和活性炭等的脱色试验比较，筛选出较理想的脱色剂－－粉状活性炭，并得出了相应的脱色工艺参数，脱色率达１００％。     

上海南京深圳城市垃圾及处置的比较研究

介绍了上海、南京与深圳人口城市化的特点、城市垃圾的来源及产生量.揭示了垃圾成分的动态变化及有机发酵类废弃物增长较快及"白色污染"加剧的趋势,并提出对策.     

Dioxin removal in “energy from waste plants” - comparison of air pollution control methods

The graph below shows the emitted dioxin - equivalents (Eadon) in grams per year in flue gas from municipal solid waste incinerators with various air pollution control methods for plants of capacity of 200 000 ton municipal solid waste (MSW) per year.

Full-size image (15K)

With optimized combustion and an effective air pollution control system the emissions of dioxins can be kept very low (concentrations below 0.1 ng/m³n).

With a very effective air pollution control system the total emission from all Swedish MSW-incinerators burning approximately 1.5 Mton/year will by 1990 be below 2 g/year - a drastic reduction from approximately 15 g today. As the total dioxin - equivalent emission to the environment in Sweden in the year 1987 was almost 500 g we see that municipal waste incineration really is on the way to solve their dioxin problem.     

从废旧锌锰电池中回收汞和铵的工艺研究

针对废旧锌锰电池中汞分散存在给回收处理废旧锌锰电池工作完全回收汞所带来的困难 ,利用汞和铵的性质特点 ,找到了从废旧锌锰电池中集中回收汞和铵的工艺条件 ,为废旧锌锰电池的资源化和防止二次污染创造了有利条件。     

Advanced process systems design technology for pollution prevention and waste treatment

The paper presents a generic process synthesis and optimisation tool suitable to take up applications in the design of waste treatment systems and in pollution prevention. The main component of the technology is a generalized process synthesis representation for simultaneous consideration of reaction and separation in multiphase systems that is amenable for stochastic optimisation. The flexibility of the representation allows applications to overall process synthesis problems as well as to decomposed reactor, reactive separation and mass exchange network design problems. Applications of the synthesis framework to waste water treatments processes using activated sludge and to natural gas sweetening in hybrid membrane-adsorption processes are presented. The paper highlights the use of the systematic technology in environmental systems design and shows how novel designs of improved performance as well as optimal design knowledge can be revealed using the systematic design framework. Context abstract: Environmental process systems for waste treatment and pollution prevention become increasingly complicated to design. There is a strong need for technology that provides systematic decision support to the process synthesis team in order to enable the timely selection of processes that operate close to the performance limits of the system under consideration. Conventional, optimisation-based process design technology is severely limited by the number of design decisions they can support simultaneously as well as by the increasingly complex process models required for the meaningful mathematical representation of environmental process systems. We have devised an optimisation-based process design methodology for integrated reaction and separation systems that overcomes major limitations of existing tools. This paper illustrates the use of this technology to provide systematic decision-support to the environmental process systems designer.