长江,嘉陵江重庆段排污负荷研究

就长江，嘉陵江重庆干流段和城区段污染物的来源以及估算污染负荷的方法进行了详细地介绍，给出各类污染源生产的污染负荷，并进行了分析比较，提出了今后重庆控制的污染物和污染源。     

市区性河流水质数学模型研究

本文通过对哈尔滨信义沟的调查和分析，研究了市区性河流的自净规律，将高浓度悬浮物沉降和有机物厌氧分解纳入河流水质模型，从而得出了广义的市区性河流多河段水质数学模型，这种建模的方法对市区性河流具有普遍的意义．     

河流水质1号模型探讨

介绍了河流水质模型70年来的发展历程和目前存在的不足之处,论述了河流水质1号模型(RwQM1)的研究成果.河流水质1号模型从活性污泥模型ASM中发展而来,并推出了建立模型的决策化方法,其对生化反应模型的完善而成为河流水质模型发展的一个标准平台.本文重点介绍了其在生化反应模型方面的进展,并和QUAL2E做了比较.     

长春市污水资源化现状及对策

论述了长春市水资源现状，并提出水资源可持续利用的途径——污水资源化，加快长春市生态省建设的步伐，促进可持续发展战略的顺利实施。     

A new maniraptoran dinosaur from China with long feathers on the metatarsus

The unusual presence of long pennaceous feathers on the feet of basal dromaeosaurid dinosaurs has recently been presented as strong evidence in support of the arboreal–gliding hypothesis for the origin of bird flight, but it could be a unique feature of dromaeosaurids and thus irrelevant to the theropod–bird transition. Here, we report a new eumaniraptoran theropod from China, with avian affinities, which also has long pennaceous feathers on its feet. This suggests that such morphology might represent a primitive adaptation close to the theropod–bird transition. The long metatarsus feathers are likely primitive for Eumaniraptora and might have played an important role in the origin of avian flight.Electronic Supplementary Material  Supplementary material is available for this article at     

松花江水中23种有机污染物的迁移转化研究——应用野外实验池方法

应用野外实验池实测及模式模拟等实验与计算方法对松花江水中２３种有机污染物的迁移转化行为进行了模拟研究，应用３个小型野外池于江边现场，经７３ｈ，３个不同实验条件的同时测定，得到各池条件下，每一化合物表观总一级动力学常数，由之估算了挥发性有机物的挥发速率常数，硝基芳烃的光解速率常数，建立了适于实验池及河流的箱式模型，应用箱式模型及所得上述参数，数学模拟了污染物在实验池及江水中变化规律，得到现实际符合的     

一种研究絮凝过程的新方法——透光脉动检测技术

采取电解法制备聚合絮凝剂可望通过控制过程的电化学与溶液化学条件，克服化学法制备中的缺陷，以获取最优的絮凝剂形态和效果。极化是影响电解制备的最主要问题之一。它将产生过电位，增加电解槽压，降低电流效率。     

天津市水环境保护的战略思考

本文从天津市水环境保护的战略出发，系统地论述了水环境保护的目标管理，水环境保护规划，总量和浓度相结合的控制方式，集中与分散相结合的综合治理途径，促进生态平衡的综合性保护措施等一系列管理思路和方法。     

观山村畜牧业生态经济亚系统的畜种结构和生态效率

本文对位于亚热带丘岗区畜牧业生态经济亚系统的畜种结构和生态效率进行研究。因地制宜地调整和优化畜种结构,充分合理地利用当地饲料资源,改善饲料营养结构,增强亚系统的总体功能。     

Calcium-enhanced ferric hydroxide co-precipitation of arsenic in the presence of silicate.

This study focuses on the effectiveness of calcium (Ca2+) improving ferric (hydro)oxides precipitation and its subsequent effects on arsenic co-precipitation with ferric (hydro)oxides. The effects of Ca2+ on surface charge characteristics and precipitating behavior, which are respectively represented as zeta (zeta) potential and R(PDA), are investigated for ferric (hydro)oxides precipitates. The presence of Ca2+ increases the potential of ferric (hydro)oxides, and a more significant effect is observed at higher pH conditions. Calcium apparently facilitates ferric (hydro)oxide floc aggregation, increasing the maximum R(PDA) from 3.19 to 5.27% (in the presence of 3.5 mg/L silicate as silicon). These positive effects contribute to reduce the adverse effects resulting from the presence of silicate and enhance arsenic removal via ferric (hydro)oxides co-precipitation under different conditions. Furthermore, the effect of Ca2+ facilitating ferric precipitation (and therefore providing more precipitated solids for arsenic) is predominant in favoring arsenic removal compared with that of increasing surface charge. Calcium plays an important role in arsenic co-precipitation with ferric (hydro)oxides in the presence of silicate.