共查询到20条相似文献,搜索用时 125 毫秒
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文章介绍了气浮-UASB-SBR处理高浓度的香料废水的工程设计、调试及运行情况,经处理后出水各项指标低于广东省《水污染物排放限值》(DB44/26-2001)的一级排放标准值(第二时段),该法运行稳定、处理效果好、运行费用低,具有推广价值。 相似文献
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文章主要分析某医院污水的工程设计、施工和运行情况。主要采用"接触氧化法+二氧化氯消毒"的处理工艺。监测数据表明:该处理系统运行稳定,操作管理简单方便,处理效果好,出水水质满足《医疗机构水污染物排放标准》(GB 18466-2005)预处理标准和广东省地方标准《水污染物排放限值》(DB 44/26-2001)第二时段二级标准的最严值。 相似文献
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张传玲 《硫磷设计与粉体工程》2019,(5)
随着节能减排和环保要求的日渐严格,SO_2高标准排放的硫回收尾气处理装置已成为不可缺少的配套环保装置。介绍了碱法脱硫工艺原理、工艺流程和技术特点,以及在硫磺回收装置中应用时的工艺设计模拟计算,并与装置的实际运行情况进行比较。采用碱法脱硫处理之后,排放尾气中ρ(SO_2)≤30 mg/m~3,几乎不含无机物质,完全满足了国家排放标准的高要求。 相似文献
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水解酸化+接触氧化法+紫外线消毒处理医院污水 总被引:2,自引:1,他引:1
介绍水解酸化 接触氧化法 紫外线消毒工艺处理医院污水的工程设计、施工和运行情况。结果表明:处理系统运行稳定,操作管理简单方便,耐冲击负荷,运转费用低,处理效果好,出水水质优于广东省地方标准《水污染物排放限值》(DB44/26-2001)第二时段一级标准。 相似文献
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SBR法处理阿胶制药废水 总被引:1,自引:1,他引:0
介绍间歇式活性污泥(SBR)法处理阿胶制药废水的工程应用,设计的SBR工艺简单,占地面积小。1年多的运行表明,处理后各项主要水质指标均低于国家二级排放标准。 相似文献
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目前测定环境空气中氟化物常采用滤膜采样氟离子选择电极法。该方法对操作要求比较严格,结合实际工作经验,针对试剂、滤膜、氟离子选择电极、空白值、操作及采样过程对测定结果产生的影响进行了探讨。 相似文献
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研究了间歇过滤机最大生产能力的计算方法,并根据最大生产能力确定在一个操作周期中各个阶段应采用的最佳时间,对这于工业生产中提高过滤机的生产具有重要意义。另外,计算结果过滤机型号及操作压力的选择具有参考价值。 相似文献
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A dream of many pharmaceutical companies is to be able to register a large design space with the regulatory agencies. The problem is that this will require both time and money, so an intelligent method of validating a design space is needed. The design space should only cover operating points at which the process runs optimally. This means that the process should be optimized for different process scenarios and objective functions and the found operating points should be registered as design space. This paper presents a method of determining a good design space by creating Pareto fronts for the ideal case and for various process disturbance scenarios. Optimal operating points are found for varying ratios between feed costs and operating costs, making it possible to make a quantitative choice of an operating point based on this ratio and a qualitative choice based on the whole front. The analysis will show how the chromatographic process can be made more robust when optimizing for higher yields, and how the effect of the critical process parameters can change. To be certain that a robust process is found and that it has a high performance, process disturbances must be taken into account when optimizing a process. 相似文献
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针对多模型预测控制的模型切换问题,提出了一种基于工况判断的多模型切换方法,利用工业过程中的可测变量综合反映系统的动态特性,根据动态特性的变化进行多模型切换。首先利用高斯混合模型(GMM)将历史数据划分为若干个工况,然后利用不同工况下的历史数据建立负荷向量矩阵和预测模型,最后根据主元模型的平方预报误差(SPE)选择预测模型。以乙烯裂解炉的反应管出口温度(COT)的控制为例进行仿真,仿真结果表明:提出的方法实现了多个反应管出口温度的稳定均衡控制,当系统的工况发生改变时,通过不同主元模型的SPE统计量的比较,可以很容易地找到匹配的工况,并切换为相应的预测模型,解决了当系统动态特性发生改变时,预测模型切换滞后的问题。 相似文献
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A method for tracking the economically optimal operating conditions of a chemical process in the presence of constraints is developed. The technique is based on an on-line search rather than a fundamental model. The most profitable operating point is found by fitting a dynamic model of the process based on data obtained from experimental moves on the plant. This model is used to compute gradients of the economic objective and of the constraints so that a direction of economic improvement inside the allowed operating region of the plant is always obtained. Constraint violations during the transients are prevented by a multivariable regulator. A new regulation method (Internal Model Control) is used which permits explicit handling of constraints and which can be made robust against modelling errors. This combined optimization/regulation approach is tested in a demonstrative simulation example and shown to be reliable for following a moving optimum and safely handling complex constraint moves. 相似文献
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Polarization curve analysis of all-vanadium redox flow batteries 总被引:1,自引:0,他引:1
Doug Aaron Zhijiang Tang Alexander B. Papandrew Thomas A. Zawodzinski 《Journal of Applied Electrochemistry》2011,41(10):1175-1182
We outline the analysis of performance of redox flow batteries (RFBs) using polarization curves. This method allows the researcher
immediate access to sources of performance losses in flow batteries operating at steady state. We provide guidance on ‘best
practices’ for use of this tool, illustrated using examples from single cells operating as vanadium redox batteries. 相似文献
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