Study of aerosol composition in some clean areas of China

On Peak Namjagbarwa (Tibet Plateau), Lushan Mountain (Province Jiangxi), Flower Mountain and Shangdianzi (Beijing, near Great Wall) aerosol samples have been collected by cascade samplers. For comparison aerosol samples from Beijing City, Pacific Ocean and South Pole also have been collected. Samples were analyzed with PIXE or XFA instruments. Factor analysis and enrichment factor calculation were performed to process the data.     

MBR技术在石化污水处理中的应用

根据锦西石化污水的性质，讨论了利用膜生物反应器与反渗透技术相结合，处理石油化工行业污水的技术路线。结果表明采用此工艺，对于可生化性差、污染物成分相对复杂的石化行业污水，经过处理后，水质稳定，品质高。     

石化废水资源化中采用膜分离技术探讨

根据锦西石化污水深度处理回用于循环水补充水、锅炉水补充水的中试试验。讨论了石油化工行业污水深度处理回用的技术路线。结果表明，纳滤、超滤、反渗透技术应用于污染物成份相对复杂的石化行业污水深度处理，是一种能够保证回用水质量的有效途径。     

草地建设是农牧交错带生态农业建设的关键环节——内蒙古阴山北麓生态农业建设的实践与启示

针对农牧交错带生态系统特点和存在的环境问题，以阴山北麓化德县七号乡小公勿素村为试点开展了以草地建设为中心的农牧结合型生态农业建设。试点以草地建设为突破口，通过建立人工灌丛草地、改良退化草场、建立饲草料基地等措施，取得了显著的生态、经济和社会效益。试点建设证明，草地建设是农牧交错带生态农业建设的关键环节。     

扬子地块南缘锑矿床中矿石铅的组成及其地质意义

锑是我国的特色矿产 ,扬子地块南缘锑矿带是世界上最大的锑成矿带。铅同位素研究表明 ,该带锑矿床中矿石铅的组成变化较大 ;在铅同位素组成图解中 ,线性分布明显 ,但它不具有等时线意义 ,而是由低放射性成因铅和高放射性成因铅两个端元混合所致。矿石铅属壳、幔混合铅。成矿作用应发生于开放体系之中 ,深部幔源物质可能参与了锑的成矿作用。     

微波消解技术及其在环境监测中的应用

本文概述了微波技术的独特优势及微波技术在环境监测领域的应用现状和发展趋势。     

湖南省城镇生活垃圾总量预测研究

结合在社会系统中有一定应用的耗散结构理论的有关思想、方法和研究成果，对湖南省城镇生活垃圾总量进行建模预测，实际应用结果表明该模型具有结构简单、适用性强的特点，且预测值与实际值吻合较好。     

南黄海海水中各种形态磷的分布变化特征

利用 1998年 5月南黄海大面调查所得到的数据和相关的历史资料 ,对南黄海海水中P的现状及其分布变化规律进行了分析 :南黄海海水中P的含量底层略高于表层 ,且主要存在形式是DOP ;底层水中颗粒态磷和溶解态磷的形态间转化与表层不同 ,可能是通过DOP为煤介进行的 ;在南黄海海水中 ,溶解态磷酸盐的分布主要是受生物活动的影响 ,可以作为赤潮发生的一个预测因子 ;南黄海的大部分区域N、P供应充分 ,属于中等营养海区。     

辽河流域面源污染负荷定量试验研究

本文通过对辽河流域面源污染物来源途径分析及系统采样进行试验测定，获得了不同面源污染类型的流失物中可进入水体的COD、总氮和总磷负荷，通过试验核算首次对辽河流域面源污染负荷进行了定量化研究。     

Efficient capture of aqueous humic acid using a functionalized stereoscopic porous activated carbon based on poly(acrylic acid)/food-waste hydrogel

Stereoscopic porous carbons have shown good potential in humic acid (HA) removal. In this work, a novel stereoscopic porous activated carbon (SPAC) was designed and synthesized via the self-assembly of a hydrogel based on food waste during in-situ polymerization, vacuum drying, carbonization, and activation. Then, the SPAC was functionalized with 3-aminopropyltriethoxysilane (APTES) and the adsorption behavior of the modified SPAC (SPAC-NH₂) was studied systematically. The effects of pH, contact time, initial concentration of HA, and adsorbent dose were investigated, showing that optimal HA removal efficiency (> 98.0%) could be achieved at an initial HA concentration of 100?mg/L. The experimental adsorption isotherm data was fitted to the Langmuir model with a maximum adsorption capacity of 156.0?mg?HA/g SPAC-NH₂. Analysis of the mechanism indicated that the removal of HA was mainly realized through the amidization reaction between the COOH groups of HA and the NH₂ groups of APTES. All of the above results showed that SPAC-NH₂ powder is an efficient, eco-friendly, and reusable adsorbent which is suitable for the removal of HA from wastewater.