【作者】 李建勤；

【导师】 袁存光； 李建忠；

【作者基本信息】 中国石油大学 ， 化学工程， 2008， 硕士

【摘要】 为解决目前炼油企业水资源短缺问题同时降低炼油企业外排污水对环境的污染,本次研究以大港石化公司经过三级处理达标排放的污水为处理对象,对其进行水质分析及现场中试的深度处理研究,提出了一条以超滤-反渗透工艺为核心的炼油污水深度处理新工艺,该工艺可将炼油企业二级外排污水处理达到工业循环冷却水补充水的指标要求。文章共分四个部分:第一部分介绍了国内外污水回用的发展状况,并对石化污水的回用进行了可行性分析,阐述了本课题研究的主要目的、内容及意义。并针对中国石油股份公司大港石化分公司污水回用的现状,根据我公司回用水水质情况,通过对目前比较成熟的水处理除盐工艺技术的分析、比较、论证,确定了采用超滤反渗透技术对回用水进行除盐的可行性;第二部分介绍了大港石化公司原污水回用的情况;第三部分为超滤反渗透技术的试验及应用部分,从理论上对超滤反渗透的原理和机理进行详细的介绍,在公司现场,通过微型流程,对反渗透的预处理工艺超滤装置进行中试试验,对超滤前后的水质指标各个参数的变化进行分析讨论,证明此技术的可行性;工业应用结果是超滤反渗透工艺的组合应用,使出水各项指标都符合循环冷却水补充水的标准,除盐出水进入公司循环水和新鲜水系统,取得了良好的预期效果,为公司节约了大量水耗;第四部分为结论部分,超滤反渗透用于大港石化公司污水深度处理是可行的,但在运行中也存在一些问题,针对这些问题提出建议。更多还原

【Abstract】 To solve the problem of water resources shortage and reduce the environmental pollution caused by the discharged waste in the refinery, a research of advanced wastewater treatment process was carried out in the trial-scale test. The aim of the research was to develop an advanced treatment process based on the core technique of ultrafiltration and reverse osmosis treatment for the refinery waste. This technique took the secondary effluent of oil refinery attained the national discharge standards as the test wastewater and made it to meet the quality demand of supplementary water for the industrial circular cooling water .The article included four parts. First, development of reuse of waste was introduced at home and abroad and the meaning of reuse of waste is set forth. Also, a few of technologies about dispose of waste in recent years were interpreted from the means and mechanism of dispose of waste. In view of current situation of dispose of waste in Dagang petrochemical company of petrochina company limited, according to the quality of reuse water in our company, by means of analysis, comparation, expound and prove of more ripe technologies of salt-removing, the feasibility of adopting super-filter anti-osmosis to removing salts in reusewater. Secondly, the current situation of waste in Dagang Petroleum Company is introduced. Thirdly, ultrafiltration and anti-seepage technology experiment and it’s application were discussed. combination of ultrafiltration and anti-seepage technology is described. In this part, the principle and mechanism of ultrafiltration-reverse osmosis is introduced in detail. With the practica micro flow, A pilot test with anti-seepage technology was carried out. The result showed that it was feasible with the comparation of water-quality index change. So ultrafiltration and anti-seepage technology were compositedly applied to meet the quality standard index of recirculated cooling water and desalinated-water was discharged into the pipe network of circulating water and fresh water which meeted predetermined effect. Forthly, the results are summarized. The results showed that it was feasible to used the ultrafiltration and anti-seepage technology for sewage treatment. But there were still some problem which need to be solved. So some advices were gived.更多还原