废弃危险化学品安全填埋处置的主要环节及控制

结合沈阳市在废弃物危险化学品安全填埋处置工作中的有关实际 ,介绍了通过安全填埋技术处置废弃危险化学品的各主要技术环节及各环节的控制要点 ,希望此方面技术得到不断发展和应用     

中国癌症与土壤环境中化学元素的相关性研究

利用土壤元素数据2069448个，癌死亡调查资料787080例，研究了胃癌、食管癌、肝癌、宫颈癌、肺癌、大肠癌、白血病、鼻咽癌、乳腺癌死亡与人群生存的土壤环境中64个元素的相关性。得出了这些癌症死亡率与哪些元素呈正、负相关的统计结果。     

钢铁低温磷化清洁生产工艺研究

根据我国能源短缺现状，研究出钢铁低温磷化清洁生产工艺，给出了最新工艺配方。此磷化工艺具有低温性（节能）、低渣量、快速性、低成本的特点。     

制革废水的土地处理法机理探讨

阐述了在土地处理制革废水过程中污染物的去除机理。其主要方式是物理、化学和生物的去除,并给出在一定土壤状况下去除机理的综合模型。     

我国农业自身污染及其控制对策

化肥、农药和地膜对我国农业的发展起到积极的促进作用，但也带来严重的农业自身污染问题。分析和探讨了化肥、农药及地膜对我国农田环境的污染状况，提出了控制农业自身污染的对策。     

SBR法处理化工废水

以序批式生化反应器（SBR）作为高浓度化工废水的中心处理单元，采用中和预处理-SBR生化处理-沉淀过滤后处理的工艺流程，对废水进行了实验研究，用正交试验法获得了一组SBR反应器的运行参数，通过近2a的现场运行表明，该工艺结构紧凑、操作简单、运行稳定，具有良好的除COD和脱氮效果。     

磺化酞菁铁的合成与光催化降解染料废水的研究

采用邻苯二氰方法合成了酞菁铁（FePc)配合物，后又经碘化得磺化酞菁铁（FePcSx），以其作为催化剂利用过氧化氢（H2O2）对模拟染料废水活性艳红X－3B进行光催化降解脱色试验（λ＞320nm)，结果染料废水的降解脱色率较高。并且通过与单独用过氧化氢降解进行对照，表明磺化酞菁铁具有很好的催化活性与优良的化学结构。     

法国垃圾渗透液的性质及其处理方法

在法国、填埋和焚烧法垃圾的采用率约占到８０％，在填埋和焚烧前的垃圾储存中，会产生一定量的渗透液，根据垃圾性质、垃圾储存时间、气候等因素、渗透液的成分变化成大，该文介绍了法国一些垃圾填埋场渗透液的性质及其主要参数情况，列举并分析了法国对渗透液的一些处理方法，通过比较指出各种处理方法的优缺点。     

Chemical composition of fine particles from incense burning in a large environmental chamber

 This study is aimed to characterize the major chemical compositions of PM_2.5 from incense burning in a large environmental chamber. Chemical analyses, including X-ray fluorescence for elemental species, ion chromatography for water soluble inorganic species (chloride, nitrate, sulfate, sodium, potassium, ammonium) and thermal/optical reflectance analysis for carbon species were carried out for combustion of three incense categories (traditional, aromatic and church incense). The average concentrations from incense burning ranged from 139.8 to 4414.7 μg m⁻³ for organic carbon (OC), and from 22.8 to 74.0 μg m⁻³ for elemental carbon (EC), respectively. The average OC and EC concentrations in PM_2.5 of three incense categories were in the order of church incense>traditional incense>aromatic incense. OC/EC ratios ranged from 7.0 to 39.1 for the traditional incense, with an average of 21.7; from 3.2 to 11.9 for the aromatic incense, with an average of 7.7. The concentrations of Cl⁻, SO₄²⁻, Na⁺ and K⁺ were highly variable. On average, the inorganic ion concentration sequence was traditional incense>church incense>aromatic incense. The profiles for elements were dominated by Na, Cl and K. In general, the major components in PM_2.5 fraction from incense burning are OC (especially OC2, OC3 and OC4), EC and K.     

Contribution of motor vehicle emissions to organic carbon and fine particle mass in Pittsburgh, Pennsylvania: Effects of varying source profiles and seasonal trends in ambient marker concentrations

We present estimates of the vehicular contribution to ambient organic carbon (OC) and fine particle mass (PM) in Pittsburgh, PA using the chemical mass balance (CMB) model and a large dataset of ambient molecular marker concentrations. Source profiles for CMB analysis are selected using a method of comparing the ambient ratios of marker species with published profiles for gasoline and diesel vehicle emissions. The ambient wintertime data cluster on a hopanes/EC ratio–ratio plot, and therefore can be explained by a large number of different source profile combinations. In contrast, the widely varying summer ambient ratios can be explained by a more limited number of source profile combinations. We present results for a number of different CMB scenarios, all of which perform well on the different statistical tests used to establish the quality of a CMB solution. The results illustrate how CMB estimates depend critically on the marker-to-OC and marker-to-PM ratios of the source profiles. The vehicular contribution in the winter is bounded between 13% and 20% of the ambient OC (274±56–416±72 ng-C m⁻³). However, variability in the diesel profiles creates uncertainty in the gasoline–diesel split. On an OC basis, one set of scenarios suggests gasoline dominance, while a second set indicates a more even split. On a PM basis, all solutions indicate a diesel-dominated split. The summer CMB solutions do not present a consistent picture given the seasonal shift and wide variation in the ambient hopanes-to-EC ratios relative to the source profiles. If one set of source profiles is applied to the entire dataset, gasoline vehicles dominate vehicular OC in the winter but diesel dominates in the summer. The seasonal pattern in the ambient hopanes-to-EC ratios may be caused by photochemical decay of hopanes in the summer or by seasonal changes in vehicle emission profiles.