共查询到18条相似文献,搜索用时 62 毫秒
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乳化油废水危害巨大,文章研究二氧化铅电极处理乳化油废水的最佳pH和处理时间等,以及在此基础上进行处理实际废水的初步研究。 相似文献
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有机凹凸棒土处理乳化油废水实验的研究 总被引:1,自引:0,他引:1
对凹凸棒土进行了改性,针对有机改性后的凹凸棒土对模拟废水中油的吸附行为,研究了有机凹凸棒土用量、搅拌时间、反应温度等工艺条件对除油性能的影响。结果表明,有机凹凸棒土是一种优良的除油剂,对油浓度为400mg/L的乳化油废水,除油率可达97%以上。 相似文献
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膜法处理乳化油废水的初探 总被引:3,自引:1,他引:3
针对乳化油废水的处理,着重研究了聚偏氟乙烯内压管式膜的配方和膜的制备方法,对聚合物含量,压力,温度等影响过量的工艺参数进行了探讨,并通过对比试验,证明与进口膜性能相似,能直接装上整机使用。 相似文献
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PHM—Y絮凝剂处理含乳化油废水的研究 总被引:7,自引:0,他引:7
通过对新型复合高分子絮凝剂PHM-Y的试验研究,浅析了其絮凝反应机理。试验证明:在PH=6.0-9.5范围内,PHM-Y对废水中的乳化油,COD和悬浮物有很高的去除率,且产生的污泥体积小,脱水性能好,比目前广泛使用的PAC和PFS有显著的优点。 相似文献
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为了实现农业固体废弃物的资源化利用,以板栗壳作为吸附剂对含乳化油的废水进行了吸附实验研究,探明板栗壳深度处理含油废水的应用潜力。研究了吸附时间、振荡速度、吸附剂颗粒粒径、吸附剂浓度、乳化油初始COD这些因素对板栗壳吸附去除废水中乳化油的去除率及其吸附量的影响。结果表明,板栗壳对乳化油的吸附在20 min时达到吸附平衡,当乳化油初始COD为227.3 mg/L,吸附剂浓度10 g/L,振荡速度200 r/min,吸附剂粒径0.154~0.25 mm时,乳化油去除率和吸附量最大,分别为66.3%和吸附量15.07 mg/g。通过拟一、二阶动力学模型拟合发现板栗壳对乳化油的吸附更符合拟二阶动力学模型,拟合得到的理论平衡吸附量为5.113 5 mg/g,初始吸附速率为3.263 3 mg/(g·min),化学吸附起主导作用。因此,板栗壳对乳化油的吸附效果较好,有望代替活性炭来深度处理含油废水。 相似文献
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Hydrophilic polyvinylidenefluoride (PVDF) membranes were employed for emulsified oil wastewater treatment. The best operating conditions for optimum flux of water, which penetrates through the membrane and rejection (prevention of oil droplets from passing though the membrane) were obtained. Concentration and pH effects on flux and rejection were determined. Increase of weight concentration caused flux decline due to the formation of a thick layer on the membrane surface. However increasing the concentration increased rejection. The pH effects were complex. By increasing the acidity of the feed, rejection was reduced. 相似文献
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随着水质排放标准要求日益严格,乳化石油污水处理愈来愈受到重视。分别从化学法、物理法和生物法等方面介绍了乳化石油污水处理技术,重点介绍了膜生物反应器处理技术。 相似文献
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《分离科学与技术》2012,47(13):2173-2187
Abstract Wastewater from metal industry hot milling operations contains oil primarily from coolant sprayed on metal strips to dissipate heat during the rolling of metals. The emulsified oil wastewater for this study was withdrawn from two holding ponds where free oil would rise to the surface and was removed periodically, and used as influent for the chemical addition (CA)-gravity separation (GS) process. The principal objective of this research was to evaluate the effectiveness of different polymer addition systems through a CA-GS process for oil/grease (O/G) and total suspended solids (TSS) removal. Polymers from two corporations were investigated. A dual polymer system was recommended and supplied by Calgon Corporation—a cationic polymer (W-2923) to break the emulsion and an anionic polymer (POL-Z-E 2706) to enhance coagulation. A single polymer system was recommended and supplied by Grace Dearborn (GD) Corporation—a cationic polymer (KLAR-AID 2400) as a coagulant. Two types of experiments were performed: jar tests and larger scale batch-mixing tank (BMT) experiments. O/G and TSS removal efficiencies were 99% for both the Calgon and GD polymer systems. The range of optimum dosage was broader for the Calgon polymers, but both systems were susceptible to overdosing. A longer settling time was required for the GD polymer, but the Calgon polymers were more sensitive to pH. Average residual production rates were 89 and 148 gallons per 1000 gallons of wastewater treated for Calgon and GD polymers, respectively. 相似文献
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介绍用多次试验筛选的ST-5复配乳化剂,进行柴油掺水25%~30%的乳化,进一步完善了乳化柴油的技术,经测试各项指标符合国家标准,点火性能良好,节油率达15%~25%,排烟量减少60%~70%,对发动机无副作用,减少了环境污染。 相似文献
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乳化柴油的研制及在油田中的应用 总被引:1,自引:0,他引:1
我们采用CZ-1型乳化剂及自行研制的ZY-3型乳化装置合成的乳化柴油、通过在中原油田的应用,各项指标达到了国家标准,烟度值降低了42.9%,排放的CO值降低了41.2%,节油率28%,经济效益显著。 相似文献
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