树立环境价值观,引导可持续发展

树立环境价值观是解决环境生态问题、实现可持续发展的根本性对策。本文简述了目前关于环境价值观理论分析的一些主要研究结果,以及环境价值与马克思主义劳动价值论的关系,在此分析基础上指出,开展环境价值研究,尤其是对环境价值的量化方法和将环境核算纳入国民经济核算体系的途径的研究,对推动我国可持续发展具有重要的现实意义

Study of Properties of Multi-Walled Carbon Nanotubes (MWCNTs) as Gas Chroma tographic Column Packing Material

将甲烷催化裂解法生产的经过纯化的多壁碳纳米管 (PMWCNTs)、活性炭、石墨化碳黑 (CarbopackB)分别填装成气相色谱填充柱 ,比较它们分离烷烃、芳香烃、卤代烃、醇、酮、醚、酯类的性能 .分别在PMWCNTs和CarbopackB上涂渍 5 % (w/w)的Carbowax 2 0M ,填装成气相色谱填充柱后 ,比较它们分离醇、酮、醚、酯、有机酸类的性能 .结果表明 ,PMWCNTs是一种性能优异的气相色谱固定相 .与相同比表面积的CarbopackB石墨化碳黑相比较 ,它有更强的保留能力 ,适合于分析沸点相对较低的化合物 ;具有更均匀的表面 ,表现为极性化合物亦可得到对称的峰形 ;理论塔板数较小 .此外 ,和CarbopackB一样 ,PMWCNTs涂渍 5 % (w/w)Carbowax 2 0M后可用来分离极性化合物 ,甚至是强极性的小分子有机酸The purified MWCNTs (PMWCNTs), prepared by catalytic decomposition of methane, activated carbon and graphitized carbon black (Carbop ack B) were used as gas chromatographic column packing materials. Their characte ristics of separation of aromatic hydrocarbons, alkanes, halogenated hydrocarbon s, ketones, ethers, esters and alcohols were compared. PMWCNTs and Carbopack B m odified with 5%(w/w) Carbowax 20M were also used as gas chromatographic col umn packing materials to separate ketones, ethers, esters, alcohols and organic acids for comparison of their separation properties. The results show that PMWCN Ts are excellent packing materials. Comparing to Carbopack B with the same surfa ce area, PMWCNTs has the following characteristics: having stronger retention ab ility, suitable for the separation of compounds with relatively low boiling poin ts, showing symmetric peaks for polar compounds due to its more homogeneous surf ace, having lower theoretical plate number. Similar to Carbopack B, PMWCNTs modi fied with 5%(w/w) Carbowax 20M can be used to separate polar compounds, even lower organic acids

ANTI-CORROSION TECHNOLOGY FOR FLUE GAS SEA-WATER DE-SULFURIZATION SYSTEM

以厦门嵩屿电厂4×300MW燃煤机组烟气海水脱硫系统的防腐蚀工程为例,探讨脱硫系统中防止海水与酸性烟气腐蚀的设备选材与防腐蚀工艺技术。Taking the flue gas sea water de-sulfurization(FGD) project of Songyu Power Plant with 4×300MW coal fired units as an example, the anti-corrosion technology for flue gas sea-water de-sulfurization system and the characters of the technology were introduced

Toxic effect of typical polycyclic aromatics hydrocarbons on diatoms in mangrove area

研究了2种典型多环芳烃对福建九龙江口红树林区优势藻的毒性效应。所选藻种为浮游藻中肋骨条藻和附着藻菱形藻,经分离、纯化和培养;所用的典型多环芳烃为菲和荧蒽。结果表明:丙酮对两种藻的不可见效应浓度值均为0.3%(v/v),菲对中肋骨条藻和菱形藻急性毒性试验的72 h半数生长抑制浓度(72-EC50)分别为0.95 mg/L和0.32 mg/L,而荧蒽对中肋骨条藻和菱形藻的72-EC50分别为0.17 mg/L和0.09 mg/L。中肋骨条藻对菲和荧蒽的耐受性比菱形藻强,菲对中肋骨条藻和菱形藻的毒性比荧蒽弱。This study focused on the toxic effect of two typical polycyclic aromatics hydrocarbons on diatoms in the mangrove area in Jiulongjiang river estuary,Fujian.After the separation,purification and culture,Skeletonema costatum and Nitzschia sp.were were exposed in different concentrations of phenanthrene and fluoranthene,respectively.The results showed that concentration of acetone,in which the toxic effect was not observed for two kinds of diatoms,was 0.3%(V/V.The values of EC50 of 72 h for phenanthrene to Skeletonema costatum and Nitzschia sp.were 0.95 mg/L and 0.32 mg/L,respectively.While those of 72 h-EC50 of fluoranthene on inhibition of the growths of Skeletonema costatum and Nitzschia sp.were calculated as 0.17 mg/L and 0.09 mg/L,respectively.The tolerance of Skeletonema costatum to phenanthrene and fluoranthene is better than Nitzschia sp.The toxic effect of fluoranthene on Skeletonema costatum and Nitzschia sp.is higher than phenanthrene.福建省自然科学基金重点项目(D002-0002

Analysis of Feed Additive D-Biotin by HPLC

本文采用高效液相色谱法测定饲料中添加剂d-生物素的含量,方法简便、准确,重现性好,适用于饲料中d-生物素的分析。A method for the determination of feed additive D-biotin by HPLC is described.The results have shown that the method is simple, accurate, and can be used to determine Dbiotin in feed

Preparation of inorganic coagulants from waste stone powder and its effects of turbidity removal

利用废石粉渣制备无机混凝剂，并研究所得初产品对硅藻土悬浮液和受污湖水样品进行处理的适宜操 作条件以及除浊净水效果。结果表明，利用某些废石粉值制备的混凝剂有较好效果，但制备工艺有待改善。In order to recover coagulation-effective substances from waste stone powder, some inorganic coagulants were prepared from waste stone powder.Then the effects of the prepared coagulants on turbidity removal from polluted lake water and diatomile suspended solution were tested, some parameters, such as dosage and pH, were also studied.The results showed that the coagulants had good effects on turbidity removal.厦门市夕阳红科学基

Progress on development and application of coagulants and flocculent in water and wastewater treatment

分三部分论述了 90年代以来国内外混凝剂和絮凝剂研究的主要进展 :1 )混凝、絮凝的微观机理及其行为的研究成果和实验研究手段 ;2 )混凝剂和絮凝剂的开发 ;3)混凝和絮凝方法在废水处理中的净化效率的提高、条件优化和在线监控等。s:The recent development of coagulants and flocculent was reviewed.Three topics were discussed:(1)Mechanisms of coagulants and flocculent,and the experimental methods of process study;(2)Development of coagulants and flocculent;(3)Researches on improvement of coagulants and flocculent efficiency,process optimization and on line monitoring and controlling as well.厦门市科委夕阳红基金会资

Variations of the concentration of dimethyl sulfur compounds during three algal blooms in a mesocosm experiment

于2005年6月至7月,研究了海洋围隔不同藻类水华演替过程中二甲基硫化物的含量动态,并考察了相关环境参数对二甲基硫化物含量的影响。2个围隔实验组均出现未知藻水华-硅藻水华-甲藻水华的演替过程,这3次不同藻类水华分别对应了二甲基硫化物含量的3次高峰,表明藻类水华对二甲基硫化物含量有重要贡献。不同藻类水华的贡献有较大差异,甲藻水华的贡献最大,硅藻次之,未知藻类水华的贡献最小。实验结果还表明PO34-、NO2-和NH4+主要通过影响藻类生长状态,进而影响DMSP和DMSO的含量;NO2-和NH4+亦可能通过调节DMSP和DMSO在藻细胞内的生理功能,影响DMSP和DMSO的含量;PO43-、NO2-和NH4+与DMS含量无显著相关。Variations of the concentration of dimethyl sulfur compounds(DMSCs)and the effects of environmental factors on the concentrations of DMSCs were investigated in a seawater mesocosm experiment from June to July 2005.Three large algal blooms,an unknown algal bloom,a diatom bloom,and a dinoflagellate bloom,respectively,were developed in the experimental enclosures.Three peak concentrations of DMSCs,corresponding to three algal blooms,indicated that algal blooms played an important role in the production of DMSCs.This study also showed that dinoflagellate bloom contributed the most to DMSCs,unknown algal bloom the least,and diatom bloom was intermediate.PO3-4,NO-2 and NH+4affected the productions of dimethylsulphoniopropionate(DMSP)and dimethylsulfoxide(DMSO)through the influence on the growth of algae,and NO-2 and NH+4might even affect the productions of DMSP and DMSO through the control of their physiological roles in the algal cell.However,no significant effects of PO3-4,NO-2 and NH+4on the production of dimethylsulfide(DMS)were evident.国家自然科学基金资助项目(200077022)~

Function and application of surrogate and internal standard in environmental sample analysis

环境样品分析结果的准确与否关系到环境质量分析的准确度 ,没有可靠的数据质量控制方法 ,数据的可靠性就无从得到保证。国际上近年来广泛应用一种适用于环境样品中有机污染物分析的数据质量控制方法 ,其关键部分是替代物和内标物的使用。分析者能够准确地进行定量 ,并清楚地知道自己的分析数据是否符合要求。本文作者从实际工作出发 ,经过大量的验证 ,确定了计算公式 ,探讨了替代物和内标物的关系、它们的作用和应用。The accuracy of environmental quality analysis depends on the accuracy of analytical data. Lack of quality control method leads to unreliable data. The core part of data quality control in advanced laboratories is the application of surrogate and internal standard. Quality control is especially suitable for trace organic analysis of environmental samples. With quality control samples the analysts can determine the target analytes accurately and make sure the data reliability. The relative equations have been derived and explained in this paper. The relationship between surrogate and internal standard has been discussed. Research examples are given to show the function and application of these quality control samples