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研究A2/O工艺结合化学沉淀法对具有我国南部城市河道水典型特征的布吉河道水的处理效果。单独采用A2/O工艺处理河道水,出水CODCr达到GB 8978—1996《污水综合排放标准》一级标准,TN质量浓度达到二级标准;TP和SS质量浓度不达标。A2/O出水经聚合氯化铝(Polyaluminium Chloride,PAC)混凝沉淀后,TP和SS质量浓度均达到一级标准,CODCr和TN质量浓度也分别较化学沉淀前降低10.7%和16.5%。A2/O工艺结合化学沉淀法处理河道水是一种有效、易维护的河道水异地处理方法。 相似文献
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石灰法在处理金属表面磷化废水中的应用 总被引:2,自引:0,他引:2
介绍了化学沉淀法处理金属表面磷化废水的原理,提出了石灰法处理磷化废水的工艺流程和技术参数,指出pH=10.2~11.5时,可以使PO4 3- 和Zn2 同时达到良好的沉淀效果,满足排放标准的要求. 相似文献
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制革废水由于含硫、铬等有毒物质,难以处理.某羊皮制革企业废水采用含铬、含硫废水分别单独用化学沉淀法处理,综合废水采用预沉淀/厌氧滤池(AF)/循环活性污泥法(CASS)处理工艺,出水COD 30.43-96.89 mg/L、NH3-N1.03-1.21 mg/L,效果良好. 相似文献
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制革废水由于含硫、铬等有毒物质,难以处理。某羊皮制革企业废水采用含铬、含硫废水分别单独用化学沉淀法处理,综合废水采用预沉淀/厌氧滤池(AF)/循环活性污泥法(CASS)处理工艺,出水COD30.43—96.89mg/L、NH3-N1.03-1.21mg/L,效果良好。 相似文献
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介绍了当前应用于中小型燃煤锅炉湿法除尘废水的各种中和处理技术,提出将除尘废水与中和处理与烟气脱硫结合进行的新工艺,为中小型锅炉烟气湿法脱硫除尘和废水循环回用处理提供了依据。 相似文献
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Vivien K. G. Lim 《组织行为杂志》2002,23(5):675-694
Much attention has been devoted to how technological advancements have created a brave new workplace, revolutionzing the ways in which work is being carried out, and how employees can improve their productivity and efficiency. However, the advent of technology has also opened up new avenues and opportunities for individuals to misbehave. This study focused on cyberloafing—the act of employees using their companies' internet access for personal purposes during work hours. Cyberloafing, thus, represents a form of production deviance. Using the theoretical frameworks offered by social exchange, organizational justice and neutralization, we examined the often‐neglected dark side of the internet and the role that neutralization techniques play in facilitating this misbehavior at the workplace. Specifically, we developed a model which suggested that when individuals perceived their organizations to be distributively, procedurally and interactionally unjust, they were likely to invoke the metaphor of the ledger as a neutralization technique to legitimize their subsequent engagement in the act of cyberloafing. Data were collected with the use of an electronic questionnaire and focus group interviews from 188 working adults with access to the internet at the workplace. Results of structural equation modelling provided empirical support for all of our hypotheses. Implications of our findings for organizational internet policies are discussed. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
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本文分析研究了油田注汽系统盐析现象及其成因和危害,并根据盐析成因探索了预防注汽盐析方法以减少甚至消除其危害。通过研究确定,采用高压旋流饱和蒸发与低压闪蒸和多效蒸集成技术是预防注汽系统盐析并减少甚至消除盐析及其造成的危害较为有效的方法。 相似文献
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铜冶炼厂污水治理技术及建议 总被引:11,自引:1,他引:11
阐述了用石灰中和法工艺治理铜冶炼厂所产生的含有重金属离子的酸性废水技术,并针对该工艺流程中清水池沉积2-3m深细泥、污泥压滤能力不够、污泥作为垃圾处理易造成二次污染问题,提出清除污泥,稳定化/固化污泥中的重金属离子,综合利用污泥,重新改造设备等措施。 相似文献
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《Journal of Loss Prevention in the Process Industries》2005,18(1):43-48
In order to optimize the use of the DRC® data (Differential Reaction Calorimeter commercialized by Setaram SA), Aventis Pharma Safety Laboratories and the Thermokinetic team of Nice Sophia-Antipolis University have developed a software which deconvolutes collected DRC data to assess the real heat flow and determine reagents accumulation. The accuracy of the results given by the DRC is shown for three batch reactions (neutralization, hydrolysis and acylation). The results are very close to those obtained by RC1 online heat flow measurements. 相似文献
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Lying in negotiations can cause negative emotions, so participants may use neutralization strategies to reduce these feelings. We conducted a 2 (ethical versus non‐ethical climate) × 2 (low versus high negative consequences) experiment to examine how individual and situational factors affect the use of three such strategies: minimizing the lie, denigration of the target, and denial. Lying, psychological distress, and self‐perceived moral attributes were measured as non‐manipulated independent variables. One hundred and ninety‐two MBA students participated in a business negotiation in which they were provided with incentives to lie. As predicted, higher distress was associated with greater denial of lies. In addition, climate and consequences interacted to affect minimization and liars engaged in less minimization than did participants who merely concealed information. Climate and moral attributes interacted to affect denigration. We believe these findings support further study of neutralization strategies in the workplace. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
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针对炭素焙烧炉含尘低浓度高温沥青烟,优化设计方案,采用干式、湿式预处理和静电净化两级处理,先除去大粒径烟尘,降低烟尘温度,降低电阻率,后静电净化沥青烟。系统具有自动控制,节电节能,除尘效率高等特点。 相似文献
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