共查询到20条相似文献,搜索用时 93 毫秒
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针对槟榔废水色度大、温度高、SS浓度高、有机物浓度高的特点,采用预处理-气浮-IC-接触氧化-活性炭过滤工艺处理槟榔废水,介绍了处理工艺流程及工艺特点,给出了主要处理单元设计参数、项目投资及运行成本。工程运行结果表明,在原水ρ(COD_(Cr))≤10 000 mg/L、ρ(BOD5)≤4 000 mg/L、ρ(SS)≤1 000 mg/L、水温为40~60℃时,处理后出水ρ(COD_(Cr))≤75 mg/L、ρ(BOD5)≤25 mg/L、ρ(SS)≤20 mg/L,出水水质达到GB8978—1996《污水综合排放标准》一级标准的要求。 相似文献
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生化法处理油脂化工废水 总被引:5,自引:0,他引:5
采用厌氧折流板反应器(ABR)-序批式活性污泥(SBR)工艺处理油脂化工废水,运行结果表面,在进水ρ(CODCr)为4000~6000mg/L,ρ(BOD5)为2000—4000mg/L时,处理后出水ρ(CODCr)≤100mg/L,ρ(BOD5)≤20mg/L,该处理工艺具有剩余污泥少、不产生污泥膨胀等优点。 相似文献
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河北省某炼焦制气有限公司焦化废水治理工程先采用化学法降低焦化废水中氰、氨氮,然后与生活污水混合进入生化系统,生化系统采用水解酸化-缺氧-好氧工艺降解有机物,最后采用混凝沉淀工艺进行深度处理。运行结果表明,系统运行稳定,处理出水COD≤135 mg/L,ρ(NH3-N)≤15 mg/L,ρ(酚)≤0.5 mg/L,ρ(硫化物)≤1 mg/L,ρ(氰化物)≤0.5 mg/L,ρ(SS)≤51 mg/L,ρ(石油类)≤0.5 mg/L,pH=6~9。处理出水达到钢铁工业水污染物排放标准(GB13456-92)二级标准。环境效益和社会效益明显。 相似文献
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采用BBR-Fenton-BAF组合工艺处理某生活垃圾填埋场渗滤液,介绍了工艺流程、设计参数和运行效果。运行结果表明:在进水ρ(COD)≤14 000 mg/L、ρ(NH3-N)≤2 450 mg/L、ρ(TN)≤3 000 mg/L时,该工艺可全量处理垃圾渗滤液,处理出水ρ(COD)≤96 mg/L、ρ(NH3-N)≤7.6 mg/L、ρ(TN)≤40 mg/L,出水水质能够稳定达到GB 16889—2008《生活垃圾填埋场污染控制标准》表2排放限值的要求。 相似文献
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《云南化工》2019,(12)
为探讨A/O/A和BAF+A工艺结合优势微生物对印染废水脱氮处理的效果,试验以广东某纺织有限公司废水站为例,采用优势微生物结合升级的系统对该废水进行脱氮处理的小试研究。实验结果表明,在接种优势微生物后,ρ(NH3-N)从19.5mg/L降至3.17mg/L,ρ(TN)从35.66mg/L降至8.93mg/L,去除率分别达到83.7%和75.0%。硝化作用良好的BAF池出水进入反硝化池,并用水解酸化池出水提供碳源,有效去除总氮,ρ(TN)从10.9mg/L降至6.2mg/L,ρ(TN)去除效率达到43.1%。系统出水ρ(COD)≤60.0mg/L,ρ(氨氮)≤5.0mg/L,ρ(总氮)≤15.0mg/L。 相似文献
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针对钢铁企业综合废水特点及回用水水质要求,采用高效混凝沉淀(带石灰、碳酸钠软化系统)-MBBR生化-过滤预处理和超滤-反渗透双膜法深度处理的组合工艺,处理某钢铁厂全厂综合废水。工程运行结果表明,该工艺处理效果理想,各项运行指标良好,其中预处理出水ρ(CODCr)≤30 mg/L,ρ(SS)5 mg/L,满足工业新水要求;深度处理出水硬度≤0.03 mmol/L,满足软化水要求。 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