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Experimental Study on Microwave Washing Process for Oily Sludge Cleaning

Author: ZhangJiangTao
Tutor: YanYouPing
School: Guangdong University of Technology
Course: Environmental Engineering
Keywords: Oily Sludge Microwave Washing Sludge treatment
CLC: X703
Type: Master's thesis
Year: 2011
Downloads: 130
Quote: 0
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Abstract


In China, the oily sludge is included in the national list of hazardous waste due to its long-term environmental hazards and potential is attracting people's attention. Is an important task of the State Environmental Protection of oily sludge management and control techniques of how harmless and resource utilization of oily sludge, is an important environmental problem be solved in the refining industry. In addition, the oil sources of fuel oil in China is more severe situation, heavy oil or residual oil as an important chemical raw materials and fuel, as a waste landfill is undoubtedly a waste of resources. The purpose of this project is to solve the technical problems that exist in the refining industry Oily Sludge Treatment, has opened up a new way for the treatment of oily sludge. Papers oily sludge source, nature and hazards. Process, technical superiority, technical difficulties and the economic viability of the domestic and international oil sludge processing method and classified Overview. Through comparative analysis, discusses the feasibility of using microwave heating of oily sludge washed Process. Subject to select landing sludge and suspended sludge both typical oily sludge as a research object, select the processing time, the power, the amount of water and the pH value of influencing factors, the oil content of the treated sludge as an evaluation index, explore the various factors that impact on the oil content of the sludge, the optimum conditions. First, analysis determination of physical and chemical properties of oily sludge, oily sludge single factor experiments, the experimental results show the obvious impact of various factors on the floor sludge. By floor sludge Microwave processing orthogonal experiment, the different factors that affect the size of the oil removal rate order for the pH value gt; processing time gt; processing power gt; amount of water. Optimum conditions by orthogonal test: the pH value of 11, the processing time of 5min, the processing power of 800w, the amount of water added to 30 mL. Optimum process operating conditions on the floor sludge secondary treatment, measured the floor sludge degreasing was 91.13%. Indicating that under the conditions of the process, the oily sludge treatment effect is ideal. As the the suspended sludge treatment difficult, the direct use of microwave heating the washing process treatment effect is not obvious. This experiment Pharmacy strengthen microwave processing suspended sludge, combined with the experimental results, analysts believe that the sodium silicate on the superiority of [suspended sludge demulsification effect. Dosing suspended sludge secondary treatment in the better conditions the treated sediment oil content reduced by 66.97%. In summary, the use of microwave heating treatment of oily sludge in the washing process technology is feasible.

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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