Heavy Metals in Organs and Tissues of the European Black Vulture (Aegypius monachus): Dependence on Living Conditions

The distribution of Fe, Zn, Cu, Cd, Mn, Pb, and Ni in the organs and tissues (kidneys, liver, lungs, brain, heart, muscles, and feathers) of the European black vulture (Aegypius monachus) was studied. It was shown that heavy metals were not responsible for the mass mortality of these birds in southern Primorye in the winter of 2001–2002. The level of pollution with heavy metals of the range of European black vultures wintering in this region (northern China and western Mongolia) may be regarded as insignificant.     

黄海和东海海域溶解氧的分布特征

根据黄河和东海海区四个季度的调查资料，描述了溶解氧的时空分布和变化规律。黄、东海溶解氧分布的基本特征是北高南低，西高东低，随着水温的变化，不同季节这一差别有所不同。黄、东海溶解氧平均值分别为495．4和420．3μmol/L，测定范围分别为90．2－681．9和133－9－692．8μmol/L。以长江口以东H断面为例，描述了夏季溶解氧的断面分布特征，在20－30m水层出现一氧跃层，30m以下垂直分布比较均匀。文中还深入研究了东海陆架区黑潮水溶解氧的分布特征和变化规律。     

微波解吸载乙醇活性炭的试验研究

针对酒精工业中产生的淡酒液用活性炭吸附 -微波解吸方法回收其中可利用的酒精。设计了固定床吸附器提纯淡酒液的流程 ,制定了活性炭吸附微波解吸的试验方案。结果表明 ,微波加热温度均匀 ,活性炭不会被过分加热分解 ,解吸速度快 ,能实现对被蒸发物质的选择加热 ,对要回收的物质可以浓缩回收     

常州运河支流水体黑臭监测调查及防治对策

通过对常州运河支流现场观测、调查和水质监测分析，指出了该地区运行支流水体有机污染严重，黑臭发生率高；分析黑臭成因机制，提出了控制对策。     

圆管弯曲加工过程的数值模拟

采用显式有限元分析软件LS -DYNA ,对于圆形钢管的弯曲加工过程进行数值模拟。圆管弯曲加工模型是常见的回转引伸弯曲加工方式 ,并在分析模型中考虑了阻止钢管在弯曲加工过程中起皱和截面扁平化的芯轴 ,以及为了防止钢管弯曲的外侧的壁厚过分减薄在钢管的末端加上压力。通过数值模拟得到管壁的最大减薄和增厚部位 ,并讨论了芯轴的摩擦系数和钢管末端的压力对管壁厚度变化的影响。     

H酸废母液的资源化处理技术研究

以萃取 反萃取体系处理萘系染料中间体H酸废母液,通过静态单因素试验和正交试验确定最佳萃取 反萃取工艺条件。试验萃取效率达93%以上,反萃取效率接近100%,经反萃取处理的萃取剂可以循环使用,有机物浓缩倍数为10倍,该浓缩液经分析,可直接回用于生产中。     

中小学生环境意识对比分析——以昆明市为例

对昆明市中小学生从环境行为倾向、环境参与意识、环境关注程度等六方面的抽样调查及表明，昆明市中不上学生环境意识总体水平尚可，小学生环境意识较中学生的强，今后应进一步加强中学阶段的环境教育工作。     

北京大气气溶胶中有机碳及可萃取有机卤素污染物

研究了2002年5月～2003年4月北京城区大气中PM2.5和PM10中有机碳(OC)及可萃取有机卤素污染物(EOX)的浓度.结果表明,PM10和PM2.5的年均值分别为172.8μg/m3和110.9μg/m3,分别是美国年均值标准(PM10, 50μg/m3; PM2.5, 15μg/m3)的3.5倍和7.4倍,说明污染相当严重;PM2.5与PM10中OC的月均浓度分别为9.1～33.9μg/m3和13.1～46.2μg/m3,冬季大气中OC的浓度最高,夏季最低; PM2.5中OC和EOX的百分含量高于PM10,细粒子更易于富集有机污染物; PM2.5和PM10中EOX的含量顺序为EOCl>> EOBr(EOI),约有73%～88%和69%～91%的EOX为EOCl,大气中的有机卤素污染物主要为有机氯污染物;PM2.5中OC与EOX的含量变化趋势一致,细颗粒物中OC对EOX的含量起到了控制作用,PM10中OC对EOX的含量影响有限.     

Feasibility study of photoelectrochemical degradation of methylene blue with three-dimensional electrode-photocatalytic reactor

The photoelectrochemical degradation of methylene blue in aqueous solution was investigated with three-dimensional electrode-photocatalytic reactor. It was found that the methylene blue could be degraded more efficiently by photoelectrochemical process than by photocatalytic oxidation or electrochemical oxidation alone. The decolorization efficiency and COD reduction were 95% and 87% for a photoelectrochemical process, respectively, while they were only 78% and 68% for a single electrochemical process and 89% and 71% for a single photochemical process. The TOC reduction of the former also reached as high as about 81% within a reaction time of 30.0 min. And these degradation reactions conformed to pseudo-first-order kinetics.     

Performance of three-phase three-dimensional electrode reactor for the reduction of COD in simulated wastewater-containing phenol

The removal of chemical oxygen demand (COD) from wastewater-containing phenol was investigated using three-phase three-dimensional electrode reactor. Special attention was paid to experimentally probe the performance of the reactor in COD removal in the process of repeated batch runs. The experimental results showed that the reactor could remove COD from phenol-containing wastewater much more efficiently than both granulated activated carbon (GAC) adsorption bed and conventional three-dimensional electrode. For 200th batch run, the three-phase three-dimensional electrode reactor with an airflow of 5 l min(-1) and a cell voltage of 30 V could remove 1350 ppm COD from the wastewater in 30 min while conventional three-dimensional electrode reactor with a same cell voltage and GAC adsorption bed with a same airflow only could remove 610 and 1000 ppm, respectively, at the same reaction duration. Although it was found that COD removal decreased with increasing repeated batch runs in our experimental range, due to adsorption saturation of GAC and electrode passivation, the extent of decrease for the three-phase three-dimensional electrode is much less than those for conventional three-dimensional electrodes and GAC adsorption beds. The passivated reactor could be partly re-activated by electrolysis in the presence of MnO2.