共查询到18条相似文献，搜索用时 109 毫秒
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目前,工业废弃物用作调剖越来越受到关注,特别是利用含油污泥进行深部液流转向。本文介绍了含油污泥的概念、分类、组成、性质及应用,特别是作为调剖剂在油田开发中的应用,通过向含油污泥中加入适量的各种悬浮剂、分散剂和增黏剂,使悬浮其中的固体颗粒延长悬浮时间。增加注入深度,提高封堵强度,达到改善注水开发效果和提高采收率的目的。含油污泥调割在我国大多数油田已经成功应用,并取得较好的增油降水效果。因此,对含油污泥进行资源化利用,对环境保护、资源再利用均具有深远意义。 相似文献
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含油污泥在我国油田中的应用 总被引：4，自引：0，他引：4
目前,工业废弃物用作调剖越来越受到关注,特别是利用含油污泥进行深部液流转向.本文介绍了含油污泥的概念、分类、组成、性质及应用,特别是作为调制剂在油田开发中的应用,通过向含舍油污泥中加入适量的各种悬浮剂、分散剂和增黏剂,使悬浮其中的固体颗粒延长悬浮时间,增加注入深度,提高封堵强度,达到改善注水开发效果和提高采收率的目的.合油污泥调剖在我国大多数油田已经成功应用,并取得较好的增油降水效果.因此,对含油污泥进行资源化利用,对环境保护、资源再利用均具有深远意义. 相似文献
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目前随着环境科学的发展,对过去污泥处理方法:填埋法、排海、堆肥、焚烧等方法有了进一步的认识.污泥处理要做到减量化、资源化、无害化,污泥焚烧技术已成为污泥处理的主流技术.本文对污泥焚烧技术进行分析,有利于焚烧技术改善和提高. 相似文献
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《常熟理工学院学报》2016,(4)
随着我国经济和城市化的迅速发展,城市污水处理厂污泥不断增多,污泥的处理及资源化利用已经成为当前急需解决的问题.本文综述了国内城市污泥的处理现状;探讨和介绍了城市污水处理中污泥处理处置的技术及其装备;介绍了一些污泥资源化处理的新技术;给出了今后污泥资源化处理处置的发展趋向. 相似文献
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城市污水污泥产量巨大且污泥成分复杂．若污泥处理处置不当,不仅会对环境造成二次污染,同时也是对资源的一种浪费．目前,污泥处理处置问题已成为全球环境保护面临的主要难题．本文介绍了城市污水厂污泥来源与组成、污泥危害、污泥处理与资源化的基本方法、处理技术和污水处理厂污泥处理处置现状,进而针对存在问题提出了污泥处理和处置的建议,使污泥的产生、处理、处置和环境保护之间达到一个良好的平衡． 相似文献
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张婷 《宁德师专学报(自然科学版)》2007,19(4):410-413,423
结合当前污泥处置的现状,分析了污泥的传统处理方法和综合利用方法的种种特点,阐述了对于污水处理厂污泥的有效再生利用应坚持综合利用的观点,实现固体废弃物的资源化利用. 相似文献
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污泥是城市污水处理的副产品,城市污水污泥产量巨大且成分复杂,如何避免二次污染和合理利用污泥中的有效成分,已成为世界热点难题之一.本文综述了国内的污泥处理现状,分析了存在的问题,并以惠州为例.对惠州市城市污水处理厂的污泥处置状况进行了调查,以梅湖污水处理厂的出厂污泥作为研究对象,根据污泥的特征,讨论了污水处理厂出厂污泥采用农用、卫生填埋、焚烧等方式进行处置的可行性.结合惠州的城市特点、发展水平和总体规划,提出以农用为主,其他方面为辅的资源化利用方式是适合惠州市城市污水污泥的最佳处置方法,并建议应从技术层面和管理层面两方面进行解决. 相似文献
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对目标污泥进行试验分析,获得最佳工艺条件后将含油污泥在经搅拌后静置分离,原油回收,泥水经机械脱水过滤。过滤后油泥利用氧化钙将除油后污泥在干燥反应器内发生的热化学反应,将细胞水在反应器内大部分蒸发,达到脱水、杀菌等目的。利用微波加热器将部分低温蒸汽加热至250℃以供再次强化干燥。经试验测定,经增钙干化后处理污泥含水率控制在35%以内。 相似文献
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Hong-zi Zhang Xu-wei Long Ru-yi Sha Guo-liang Zhang Qin Meng 《Journal of Zhejiang University. Science. B》2009,10(11):852-859
Oily wastewater generated by various industries creates a major ecological problem throughout the world. The tra-ditional methods for the oily wastewater treatment are inefficient and costly. Surfactants can promote the biodegradation of pe-troleum hydrocarbons by dispersing oil into aqueous environment. In the present study, we applied rhamnolipid-containing cell-free culture broth to enhance the biodegradation of crude oil and lubricating oil in a conventional aerobically-activated sludge system. At 20 ℃, rhamnolipids (11.2 mg/L) increased the removal efficiency of crude oil from 17.7% (in the absence of rham-nolipids) to 63%. At 25 ℃, the removal efficiency of crude oil was over 80% with the presence of rhamnolipids compared with 22.3% in the absence of rhamnolipids. Similarly, rhamnolipid treatment (22.5 mg/L) for 24 h at 20 ℃ significantly increased the removal rate of lubricating oil to 92% compared with 24% in the absence of rhamnolipids. The enhanced removal of hydrocarbons was mainly attributed to the improved solubility and the reduced interracial tension by rhamnolipids. We conclude that a direct application of the crude rhamnolipid solution from cell culture is effective and economic in removing oily contaminants from wastewater. 相似文献
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通过对菌落特征的观察,从油泥中筛选出一株区别于校园土壤中的放线菌;并通过对两菌株摇瓶发酵代谢产物的核磁共振氢谱比较,为后续研究的深入提供理论依据.结果表明,从油泥和校园土壤中分离纯化的两菌株其菌落都与培养基牢固结合、不透明、较干燥、正反颜色不同,有泥腥味.但菌落正面＂干粉＂前者呈浅灰色,而后者呈白色;菌落反面呈棕褐色,前者明显深于后者;核磁共振氢谱表明两种菌的代谢产物有明显差异.因此,不同环境中的放线菌菌落特征有差异,其色泽表现出对环境的适应;其代谢产物也有差异. 相似文献
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Bioflocculants have received increasing attention in research because they are low cost, non-toxic, biodegradable, operationally simple and useful in many water and wastewater treatment applications. In this study, we focused mainly on the screening of the flocculant-producing strain and its application in oily wastewater treatment. Bacteria strain B-6-1 was isolated by the pyridine screening method. UPC-1 reagent produced by B-6-1 had efficient flocculating activity. It was deduced that the main component of UPC-1 reagent was polysaccharide through purification and analysis. The influence of dosage of reagent, pH value, temperature and oil concentration on the flocculation effect of UPC-1 reagent was investigated. 相似文献
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通过工程实例的对比分析,介绍了机械行业含油废水处理中,气浮和絮凝沉淀技术的应用特点,气浮技术具有占地面积小、污泥产量少的优点,絮凝沉淀技术则具有运行稳定、操作简单的优势。进一步总结出了两种处理工艺的选择原则。 相似文献
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To deeply clean oily wastewater,molecular sieve residues (MSRs) were sufficiently recycled and utilized due to their high specific surface area,porous structure,and outstanding adsorption property.Molding MSRs (MMSRs) were prepared by adding additives (starch,citric acid,and soluble glass) to MSRs and were then filled into a fixed bed for adsorbing and separating the oil in wastewater.Sodium dodecylbenzenesulfonate was used to modify the MMSRs,and their adsorption property was also investigated.In addition,the MSRs were characterized by scanning electron microscopy,energy-dispersive X-ray spectroscopy,Brunauer-Emmett-Teller analysis,and Fourier transform infrared spectroscopy.The results indicated that MMSRs satisfied the filling requirement of fixed bed,and their dynamic adsorption capacity could reach 0.1854 mg g~(-1).Furthermore,the static adsorption capacity of MMSRs achieved 1.7346 mg g~(-1) in the optimum conditions,and the oil adsorption performance of modified MMSRs was further enhanced.Therefore,this work suggests that MSRs are promising alternatives in cleaning oily wastewater. 相似文献