濱二首站污水處理工藝優(yōu)化研究
[Abstract]:The modified treatment of Biner No. 2 sewage treatment station has not been put into production, which is rich in acidic water quality of CO2 and is very corrosive, which results in serious corrosion of metal pipelines, tanks, valves, pumps, filters and so on in the station. The sludge treatment system in the station is not put into operation, after each treatment structure is discharged into the sewage pool, the sewage lifting pump reenters the treatment process, thus forming the sludge internal circulation, resulting in the deterioration of the water quality. Due to the corrosion of the filter, the damage of the internal components and the leakage of the filter material, the sewage oil and suspended matter cannot be removed effectively, which leads to the serious water quality exceeding the standard after treatment. In the process of optimizing the wastewater treatment process of the second littoral first station, this paper adopts the way of combining indoor experiment with field test. Firstly, through the on-the-spot investigation and investigation of the second littoral sewage treatment station, In this paper, the geographical and natural environment of the second littoral sewage treatment station is understood, and the process adjustment since the construction of the littoral second sewage treatment process is analyzed, and the process flow and the production status of the main treatment equipment in the station are emphatically studied. Based on the above investigation, this paper summarizes the problems existing in the second littoral sewage treatment station in detail, which lays a foundation for the further research on the process transformation. Secondly, the water quality of the effluent from the second littoral sewage treatment station and the incoming water from the second littoral station are analyzed by sampling and analysis, the water quality exceeding the standard is defined, the cause of serious corrosion is analyzed, and then the water quality modification technology is studied. It is clear that the adaptability of the modification technology in the sewage treatment system of the second littoral first station is poor; According to the characteristics of water quality at present, the "stable purification" technology is studied, and the adaptability of the "stable purification" technology in the sewage treatment system of the second littoral first station is discussed through the corresponding medicament screening, field test and economic analysis. The experimental results show that the water quality stabilization technology is suitable for the treatment of wastewater from the second littoral sewage station, and the treatment effect is better. The coagulant, flocculant and fungicide suitable for the water quality of the station are selected through the comparison of the water samples added with the medicine. Finally, according to the research results of water treatment technology and the status quo of Biner No. 2 sewage treatment Station, the sewage treatment process in the station is studied. Combined with the advanced and mature technology in the same industry, the sewage treatment process and transformation scheme are determined, and the medicine addition is perfected. Sewage oil recovery, sludge treatment and other systems. Finally, the design scheme is selected from the aspects of economic and technical index, scheme adaptability and economic benefit, and the economical and technologically feasible design scheme is selected. In view of the characteristics of incoming water quality and the status quo of water treatment technology in Binjiaotou station at present, the revamping of sewage treatment process and its supporting facilities in Binshou station of Shengli Oilfield can not only reduce corrosion of metal pipeline, pump body and valve in the station, etc. Moreover, it can also reduce the content of sewage oil and suspended solids to the maximum extent, so that all the indexes of treated sewage can meet the present demand of reservoir development, thus improve the water flooding condition and reservoir development effect of oil field, and reduce the development cost. In addition, the improvement of water injection quality can reduce the start-up pressure, increase the water absorption index, improve the water drive effect and oil recovery rate, and ensure the safe, stable and efficient production of the oil field.
【學(xué)位授予單位】:西南石油大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:X741
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