上海市区中小变电站的环境影响分析

通过对上海市区典型变电站电磁场强度，辐射电磁波及噪声的监测、测试，作出了中小型变电站建设对周围居民环境影响的定性评价，并提出了一些需要注意的问题。     

Fe_3O_4、Fe_2O_3对燃煤飞灰比电阻和击穿场强的影响

利用从国内不同燃煤电厂采集的飞灰作为本底灰样，采用试剂添加、磁选分离和高温煅烧等多种方法分别制备Ｆｅ_２Ｏ_３、Ｆｅ_３Ｏ_４含量不等的试样，进而对这些试样的比电阻和击穿场强进行实验研究。研究结果表明，Ｆｅ_２Ｏ_３和Ｆｅ_３Ｏ_４对飞灰的电导性质的影响规律明显不同：Ｆｅ_３Ｏ_４含量提高４％，可使飞灰的比电阻降低约１个数量级，并使霜些飞灰在０．５ｋＶ／ｃｍ场强下产生电击穿；Ｆｅ_２Ｏ_３的比电阻和击穿场强大大高于Ｆｅ_３Ｏ_４，对飞灰的影响不大。实验结果为研究电除尘器收尘极板上飞灰对收尘机理的影响，和飞灰比电阻数学模型的建立提供了依据。     

综合环境可靠性试验中加速度传感器灵敏度的修正

在综合环境可靠性试验中,加速度传感器的灵敏度会随不同的试验温度产生确定的、可逆的变化,而灵敏度的变化会导致振动控制系统产生系统误差.通过在不同温度下对传感器灵敏度的校准,获得了几种传感器灵敏度的温度变化特性,并提出了通过对变换器设置的传感器灵敏度进行修正,消除试验环境温度引起的系统误差的方法.     

低温条件下生物除磷系统的强化启动和运行

本文通过对比试验对冬季低温条件下生物除磷系统的启动和运行进行了研究，结果表明，低温条件下：(1)温度对生物除磷系统的影响是通过影响有机物的酸化水解而间接产生作用的；(2)通过人工投加HAc使污水中VFA≥80mg／L时，可以顺利启动生物除磷系统；(3)设置独立水解酸化池，可以提高生物除磷效果，在进水COD=150～300mg/L、磷酸盐=5mg／L时，出水磷酸盐≤1mg／L；(4)低温条件下按照水解-外循环ERP-SBR方式运行时，在磷酸盐浓度高达10mg／L的情况下仍能保证出水磷酸盐浓度≤0．5mg／L。     

反应堆控制棒驱动机构电机温升试验研究

目的 研究电机在不同工况下的温升情况,完成电机散热能力评估,为电机散热优化和工程通风设计提供参考.方法 模拟驱动机构实际运行环境,在断风条件下进行自然散热温升试验,获取电机温升最大工作模式,并在该模式下进行2种风速条件下的通风试验,获取定子绕组的平衡温度.当定子绕组达到热平衡后,切断通风,进行断风试验,获取最大断风时间.结果 电机温升最大时,工作模式为三相通电,增大风速可降低定子外壁温度,提高定子绕组与定子外壁的温差.三相通电工况下,5 m/s和8 m/s风速下最大断风时间分别为15 min和22 min.结论 开展了电机温升试验研究,获得了典型工况下电机的温升状况,为电机散热优化和工程通风设计提供了参考.     

干法加氨脱除SO2中的温度效应

研究了在ＮＨ３参与下，干法脱除ＳＯ２中的温度效应，实验结果表明，在ＳＯ２与ＮＨ３的热化学反应中，反应程度随温度上升呈线性下降，然而，在脉冲电晕条件下，ＳＯ２脱率却随温度上升呈现非线性变化，通过测定不同温度下的产物组成，揭示了在脉８冲电晕放电条件，干法脱除ＳＯ２存在两条平反应途径；（１）先成盐后氧化；（２）先氧化后成盐，在较高温度下反应主要按第（２）条途径进行。     

湿法烟气脱硫应用中的几个问题探讨

对火电厂应用石灰石 石膏法烟气脱硫中遇到的几个实际问题进行分析和讨论 ,重点讨论分析了湿法烟气脱硫和烟气温度、烟气抬升高度、烟气扩散的关系 ,并分析了湿法烟气脱硫对烟囱产生的腐蚀影响     

Integrated environmental assessment and pollution prevention in Vietnam: the case of anthracite production

Using the concept of life cycle analysis, the whole life cycle of anthracite production in Vietnam was assessed and the environmental “hot-spots” were identified. These include (i) dust pollution at coal transfer points or piles in storage; (ii) noise pollution resulting from the usage of heavy equipment, and (iii) high volume of acid and turbid mine water discharged into the environment.Pollution prevention and treatment options were identified and discussed in this study which consists of wet treatment of dust, planning, collection and treatment of mine water, planting of trees for dust and noise reduction as well as minimization of erosion. Some recommendations are made for pollution abatement from coal production and improvement of anthracite production in the region.     

Toxicity assessing for chlorpyrifos-contaminated soil with three different earthworm test methods

Earthworm toxicity tests are useful tools for terrestrial risk assessment but require a hierarchy of test designs that differ in effect levels (behavior, sublethal, lethal). In this study, the toxicity of chlorpyrifos contaminated soil on earthworms was assessed. In addition to the acute and chronic tests, an avoidance response test was applied. Earthworms were exposed to sublethal and lethal concentration of chlorpyrifos, and evaluated for acute toxicity, growth, fecundity and avoidance response after a certain exposure period. The test methods covered all important ecological relevant endpoints (acute, chronic, behavioral). Concentration of 78.91 mg/kg, chlorpyrifos caused significant toxic effects in all test methods, but at lower test concentrations, only significant chronic toxic effects could be observed. In the present study, chlorpyrifos had adverse effect on growth and fecundity in earthworm exposed to 5 mg/kg chlorpyrifos after eight weeks. The avoidance response test, however, showed significant repellent effects concentration of 40 mg/kg chlorpyrifos. For chlorpyrifos, concentration affecting avoidance response was far greater than growth and fecundity, it seemed likely that earthworms were not able to escape from pesticide-contaminated soil into the clean soil in field and hence were exposed continuously to elevated concentrations of pesticides.     

试用平炉尘制备中温变换催化剂

利用钢铁厂平炉尘制备中温变换催化剂,制备成本低,工艺简单,活性达到部颁标准,具有明显的经济效益.