Journal of Liaoning Petrochemical University
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Comprehensive Evaluation of Oil Depot Construction Scheme Based on Entropy Weight Analysis
Fan Ying, Shi Tingyi, Wang Yingying, Tong Zhen, Wu Yuguo
Abstract226)   HTML    PDF (871KB)(130)      
Construction standardization and civilization are not only the minimum requirements of the construction site, but also the innovation of the construction field in the new era, which are related to the social and economic development and the process of national modernization.Based on the recruitment and bidding information of an oil depot and taking four different construction schemes as the basic data, a standardized construction management evaluation index system was firstly constructed. On this basis, the standardized construction scheme evaluation system was constructed by entropy weight method and comprehensive evaluation method. The results show that the degree of standardization and civilization of the four schemes is ranked as M3>M4>M1>M2. The first⁃level index weight ranking is environment>safety>energy saving>cost>quality>progress. Among them, the weight proportion of environment factor is the largest, about 0.193, and the weight proportion of project progress factor is the smallest, about 0.128. Therefore, during the construction of oil depot, the emphasis should be placed on construction environment and safety construction, and the road of green, standardized and sustainable development should be taken.
2021, 41 (2): 51-58. DOI: 10.3969/j.issn.1672-6952.2021.02.010
Metal⁃Loaded ZSM⁃5 Molecular Sieve Catalyzed Ozonation of Phenol Wastewater
Cui Fuxu,Zhang Jing,Zhang Bo,Yang Liangdong,Wang Yingying,Pan Liwei
Abstract415)   HTML    PDF (1668KB)(221)      
ZSM⁃5 molecular sieve was used as carrier, cerium (Ce), manganese (Mn), nickel (Ni) and copper (Cu) were used as active components to prepare metal⁃supported catalyst to catalyze ozonation treatment of phenol wastewater. The catalyst was prepared by impregnation method and characterized. The effects of active components, ozone dosage, catalyst concentration and pH on the treatment of phenol wastewater were investigated. The results showed that Ce⁃ZSM⁃5 had the best catalytic effect and COD removal rate under the conditions of pH=7, catalyst concentration of 1.00 g/L, ozone dosage of 44.0 mg/min and reaction time of 60 min. It is 85.74%. When Ce⁃ZSM⁃5 is added, about 80% of the ozone can be saved. It shows good stability which the COD removal ratio reached about 70% after the catalyst repeatedly used for 7 times.
2019, 39 (2): 10-14. DOI: 10.3969/j.issn.1672-6952.2019.02.002