厌氧处理原理及其在低浓度有机废水处理中的应用现状

介绍了厌氧处理原理，并对厌氧处理低浓度废水的最新进展进行了较全面的综速，高效厌氧反应器及组合工艺为这一发展提供了可能。高效厌氧反应器中以膨胀颗粒污泥床（ECSB）反应器为首选。其结构及远行特性决定了它在处理低浓度虚水方面具有潜在的优势，但中国EC,SB的应用仅处于研究阶段，尚未有生产规模的EGSB；组合工艺对低浓度废水中污染物去除率极高，出水中COD、NH3-N、TP和SS浓度均可达到较高的排放标准，对生活污水、稀释后的工业有机废水等低浓度有机废水处理具有广阔的前景。     

唐钢2×150t转炉煤气回收系统设计及运行实践

在此较详细地介绍了唐钢一炼钢厂 2× 15 0t转炉煤气回收湿法除尘工艺和系统的技术特点。该系统设计吸收了国内外大型转炉煤气回收的经验。经近 18个月的生产实践 ;认为效果良好 ,煤气回收率近 80 % ,热值近 80 0 0kJ Nm3,放散排放浓度小于 80mg m     

克山病病区低硒粮喂养的豚鼠红细胞内Na~+浓度变化的研究

豚鼠分别喂以克山病病区粮(低硒)和非病区粮(硒含量正常),借助合成的D_Y(PPP)_2~(-7)位移试剂用XL-400NMR谱仪直接测试完整红细胞内Na~+的NMR谱,并定量计算细胞内Na~+浓度,发现低硒的病区粮饲养的豚鼠红细胞内Na~+浓度显著高于正常组;病区粮喂养的豚鼠红细胞在老化条件下细胞溶血比非病区严重。     

河流枯水流量特征研究

本文以泾、洛、渭三河流干流在陕西境内的主要控制断面为例,分析了１４个时段枯水流量的概率分布特征,选定了理论分布线型,揭示了各枯水序列的时段平均流量均值、变差系数和偏态系数的变化规律,建立了推求不同频率不同时段的枯水流量的经验公式。绘制了相应的关系曲线,应用十分方便。     

反硝化在土壤及地下水中的净化作用

综述了土壤及地下水系统中反硝化作用的研究进展，详细地介绍了反硝化作用的原理和机制，用以防治地表水和地下水的污染。     

Dynamic fate modeling of γ-hexachlorocyclohexane in the lower reaches of the Liao River

A QWASI model dependent on temperature is parameterized to describe the long-term fate of persistent organic pollutants (POPs) in the Liao River. The model parameters, namely fugacity capacity, degradation rate, and transfer coefficient, are profoundly affected by temperature. This model is used to simulate the fate of γ-hexachlorocyclohexane (γ-HCH) in the lower reaches of the Liao River from 1998 to 2008. Modeling results show that γ-HCH fugacity capacities in air, water, and sediment increase as temperature decreases, and the transfer and transformation rate coefficients increase as temperature increases. The variations of transfer and transformation parameter D values depend on fugacity capacities, and transfer and transformation coefficients simultaneously. The performance of the model is evaluated by comparing the predicted and observed concentrations in the water and sediment of the Liao River. The predicted values agree well with the observed value in the order of magnitude, in most cases within the factor of 3. It is believed that the model is appropriate for simulating the long term fate of POPs in the Liao River. Translated from Environmental Science, 2006, 27(1): 121–125 [译自: 环境科学]     

测空气中SO2时的主要影响因素

目前测定空气中SO2主要采用甲醛吸收-副玫瑰苯胺分光光度法。该法操作比较严格，测试结果的准确度受诸多因素的影响。因此文中对这些影响因素进行了探讨，主要为试剂质量、显色温度和显色时间、溶液加入顺序、比色皿、空气采样器流量、采样温度、导气管的吸附等因素对测定结果的影响进行了探讨。     

利用多次回归拟合水的饱和蒸气压与温度的关系表达式

在使用于湿球测定锅炉烟气含湿量的过程中,需要查找水的饱和蒸气压,非常不方便.利用D-196和<化工原理>上册中取得部分数据,用多次线性回归的方法,拟合出水在0～200℃范围内的饱和蒸气压与温度的关系表达式;并对该表达式的误差进行了分析,误差均值为0.2‰,最大值也只有0.8‰,完全可以满足环境监测中数据处理的精度要求.     

袋式除尘器在立窑烟气除尘中的应用

对立窑烟尘排放特点与立窑除尘工艺中的问题及对策进行了讨论。分析了立窑烟尘排放特征,对几种常见的立窑除尘的设备和工艺进行了比较,指出袋式除尘器可成功地用于立窑烟气除尘。并且从滤料选择、清灰方式、烟温控制、灰斗的气密性等方面详细地完善了袋式除尘器在立窑烟气除尘中的应用。     

The effect of heating temperature of thin film transistor-liquid crystal display (TFT-LCD) optical waste glass as a partial substitute partial for clay in eco-brick

In order to fulfill the current WEEE directives, the traditional approach to manage thin film transistor-liquid crystal display (TFT-LCD) waste glass is inadequate. It is a serious opportunity to achieve resource conservation, reduction, stabilization and safety of management of TFT-LCD in the near future. To assist in achieving these goals, this study investigated the sintering characteristics and material properties of TFT-LCD waste glass, which can be pulverized and ground and subsequently blended with clay, at various substitution levels (0–40%) and finally fired from 800 °C to 1000 °C to make eco-brick. The brick thus produced was analyzed to determine variations in weight losses on ignition, 24-h absorption, bulk density, shrinkage, compressive strength and microstructure changes. The results for specific gravity, water adsorption, and compressive strength revealed that bricks made from mixtures containing TFT-LCD waste glass met the general requirements for bricks. The advantages of less water absorption, less weight loss on ignition, and a gain in compressive strength in the clay-TFT-LCD waste glass bricks should encourage the use of TFT-LCD waste glass as a brick additive.