共查询到20条相似文献,搜索用时 93 毫秒
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张家港金港地下污水厂以AAO+MBR工艺为主体工艺,执行一级A排放标准,自运行以来,主体工艺运行持续稳定,节能降耗效果较好。通过该厂运行现状的评估发现,该厂在通风除臭、防灾减灾等方面尚存在优化改进之处。研究以金港污水厂为对象提出了对未来地下式污水厂设计和运行优化的若干建议,包括针对性的通风除臭设计、结合气候特点的防汛排涝措施等。 相似文献
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北方寒冷地区的市政污水厂进水水温较低,给污水处理系统的正常运行带来较大影响。基于此,本文分别从工程技术和运行管理两个角度,对水厂设计和运行优化、低温菌剂和生物载体投加、污水提温、池体加盖保温、管网改造及水源替换等技术措施进行分析探讨,提出了不同条件下的应对措施建议,以期为相关地区污水厂的建设和运行管理提供借鉴。 相似文献
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合肥市塘西河再生水厂是一座半地下式污水处理厂,以倒置AAO+MBR工艺为主体工艺。运行以来,该厂水质稳定达标,污水厂和谐融入周边景观,运行情况良好。通过该厂运行现状的评估发现,该厂在管理上存在一定问题,主要体现在除臭、防腐和对设备的维护方面。以塘西河再生水厂为例,研究对未来地下式污水厂设计和运行优化的若干建议,包括针对通风次数的优化、半地下式污水厂的安全管理等。 相似文献
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污水厂运行4年来,由于来水经常变化,监测分析方法有限,生化系统的平稳运行得不到保证,使出水质量受到一定影响。通过数据分析,结合实际操作,总结出优化操作方案,为生化系统的平稳运行和保证出水质量打下了基础。 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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D. G. Gordeev L. F. Gudarenko M. V. Zhernokletov V. G. Kudel’kin M. A. Mochalov 《Combustion, Explosion, and Shock Waves》2008,44(2):177-189
A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation
of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from
the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO2) of density 0.08 g/cm3.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008. 相似文献
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Jorge Marcelo Romero Soledad Bustillo Hugo Enrique Ramirez Maisuls Nelly Lidia Jorge Manuel Eduardo Gómez Vara Eduardo Alberto Castro Alicia H. Jubert 《International journal of molecular sciences》2007,8(7):688-694
A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out. 相似文献
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A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%. 相似文献
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塔设备改造选型的分析 总被引:2,自引:0,他引:2
就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后,着重介绍一种新型塔板(导向梯形浮阀塔板)和一种新型填料(波环填料——乾隆帕克)。 相似文献