铁床+立式氧化槽治理农药废水

介绍了某农药生产企业采用铁床＋立式氧化槽工艺处理农药废水,给出了工艺流程、工艺参数和处理效果。废水处理运行结果：CODcr、色度、SS平均去除率分别大于95％、90％、97％。     

Suwannee河黄腐酸光化学生成溶解无机碳的研究

用模拟太阳光照射Suwannee河黄腐酸以模拟光氧化过程,研究了溶解氧浓度、模拟太阳光波长范围和铁浓度对溶解无机碳产量的影响.结果表明,氧气饱和样品的溶解无机碳生成速率比空气饱和条件下(3.32 μmol/(L·h))增加了40.1%(以照射过程中线性回归的生成速率计算); 实验以Mylar-D、有机玻璃UF-3和有机玻璃UF-4为滤光片研究了波长范围对溶解无机碳产量的影响,近似计算的结果表明UV-B、UV-A 和可见光部分分别占全波段模拟太阳光光化学生成无机碳产量的43%、42% 和 15%; 当样品铁浓度达到10 μmol/L时,其溶解无机碳的生成速率约为初始样品(Suwannee河黄腐酸铁浓度为1.90 μmol/L)的2.8倍,证实了铁在光化学氧化过程中的催化作用.     

Channel flow and trichloroethylene treatment in a partly iron-filled fracture: experimental and model results

Technical developments have now made it possible to emplace granular zero-valent iron (Fe(0)) in fractured media to create a Fe(0) fracture reactive barrier (Fe(0) FRB) for the treatment of contaminated groundwater. To evaluate this concept, we conducted a laboratory experiment in which trichloroethylene (TCE) contaminated water was flushed through a single uniform fracture created between two sandstone blocks. This fracture was partly filled with what was intended to be a uniform thickness of iron. Partial treatment of TCE by iron demonstrated that the concept of a Fe(0) FRB is practical, but was less than anticipated for an iron layer of uniform thickness. When the experiment was disassembled, evidence of discrete channelised flow was noted and attributed to imperfect placement of the iron. To evaluate the effect of the channel flow, an explicit Channel Model was developed that simplifies this complex flow regime into a conceptualised set of uniform and parallel channels. The mathematical representation of this conceptualisation directly accounts for (i) flow channels and immobile fluid arising from the non-uniform iron placement, (ii) mass transfer from the open fracture to iron and immobile fluid regions, and (iii) degradation in the iron regions. A favourable comparison between laboratory data and the results from the developed mathematical model suggests that the model is capable of representing TCE degradation in fractures with non-uniform iron placement. In order to apply this Channel Model concept to a Fe(0) FRB system, a simplified, or implicit, Lumped Channel Model was developed where the physical and chemical processes in the iron layer and immobile fluid regions are captured by a first-order lumped rate parameter. The performance of this Lumped Channel Model was compared to laboratory data, and benchmarked against the Channel Model. The advantages of the Lumped Channel Model are that the degradation of TCE in the system is represented by a first-order parameter that can be used directly in readily available numerical simulators.     

用铁泥制氧化铁红

研究了以染化厂废料铁泥和工业废硫酸为原料,采用高温干法制取氧化铁红的工艺,简要介绍了该法生产氧化铁红的反应机理,探讨了氧化剂,氧化时间,氧化温度等对产品质量的影响,确定了适宜工艺条件,提出了工业生产流程和尾气治理方案。     

我国钢铁企业安全管理发展状况的分析与研究

企业安全管理是企业正常运营不可或缺的部分,认清企业安全管理发展脉络,找准企业安全管理发展方向,对促进企业的持续发展有着重要作用.追溯了我国安全管理的发展过程,总结出我国企业安全管理发展的3个阶段,并以石家庄钢铁有限责任公司为例,结合该企业事故规律对其安全管理发展状况进行了分析研究,进一步印证了我国钢铁企业安全管理发展状况.     

煤和聚丙烯腈炭化过程中负载铁原子在表面与体相间的质量迁移

采用ＸＰＳ和Ａｒ＾＋离子刻蚀技术，研究了炭化过程中铁原子在煤和聚丙烯腈表面和体相间的质量分布规律。结果发现，随炭化进行铁原子由表面向体相迁移和富集，炭化温度升高，迁移和富集增加，表面浓度逐渐降低，以致铁原子沿粒子径向呈浓度梯度分布。     

复杂人机系统班组人误模型与量化分析

讨论一个班组人员行为模型,即包括:任务模型、事件模型、班组模型和人-机交互模型4个模块,并用其模拟和分析事故状态下的运行班组对异常事故的响应过程;利用班组认知过程流程图模型表征事件发展过程中班组成员对事故的征兆识别、决策、计划和行动执行的响应过程;采用CREAM的量化分析技术,对核电站的蒸汽发生器管道破管事故的班组认知失误事件进行量化分析。     

膜法脱盐技术在钢铁企业污水回用中的应用分析

钢铁企业综合污水处理厂的出水脱盐处理回用具有重要意义,本文对国内一些钢铁企业采用的膜法脱盐技术的优缺点进行了分析,并提出了改进方案。     

钢铁烧结行业脱硫石膏综合利用前景

分析我国钢铁行业烧结烟气脱硫现状,论述了脱硫石膏的特性,指出了脱硫石膏的综合利用价值,其社会效益和经济效益是巨大的.