In this paper, ascorbic acid as combustion agent, composite oxides of nickel ferrite were prepared by combustion method. The optimal molar ratio of ferric nitrate to nickel nitrate was determined by XRD. The UV absorbance properties of composite were analyzed by UV spectra. The morphology of composites was characterized by scanning electron microscopy. The photocatalytic properties were studied using methylene blue as the degradation substrate and composite as catalyst. The experiment showed important effect of amount of catalyst, the pH value of the solution, the amount of hydrogen peroxide and irradiation time of the photocatalyst. The optimal photocatalytic condition is: dose of catalyst 20 mg, pH at 6, and hydrogen peroxide 6 mL. The results indicate that the nickel ferrite with molar ratio of nickel nitrate, ferric nitrateand ascorbic acid of 1:2:1 is photocatalytic effective under UV and visible light. Moreover, the nickel ferrite with molar ratio of nickel nitrate, ferric nitrateand ascorbic acid of 2:1:1 and 1:3:1 are photocatalytic effective under UV light.

The biosurfactant produced by Pseudomonas aeruginosa strain KO5-2-9 could reduce surface tension to 26.6 mN/m and emulsified diesel up to 72.6% with the critical micelle concentration of 85.82 mg/L. Fourier transform infrared spectrum of extracted biosurfactant indicated the key component was glycolipid. The surface tension (ST) and emulsification index (E₂₄) were taken as evaluation indexes to study on stability of surfactants. The results showed that compared with chemical surfactants, the biosurfactant had high surface activity and emulsifying ability in high temperature, high salinity and high alkalinity. The results of physical simulation experiment indicated that the biosurfactant could enhance oil recovery over 8% and would have a good prospect in microbial enhanced oil recovery.

The synthesis of didodecyl carbonate was studied by transesterification progress using dimethyl carbonate and lauryl alcohol as the starting materials, and the prepared organotin compound as catalyst. Results indicated that the best synthetic condition were: the mole ratio of bay alcohol to dimethyl carbonate 2, heating temperature of 120 ℃, reaction time 3 h, mass fraction of catalyst to materials was 5% under atmospheric pressure using organotin as catalyst. Under the optimal synthetic conditions, the yield of DDC was 55.57%, the selectivity was 74.25%, and the total yield of carbonic acid esters of laurel was 75.16%.

The prepared epoxy acrylate was modified by toluene diisocyanate (TDI), affording the urethane modified acrylate pre-polymer with interpenetrating network structure. The effects of modifier dosage, reaction time, reaction temperature, catalyst type and amount on the conversion rate were studied. Infrared spectroscopy was used to characterize the structure of the modified product. In the mean time, the modified product ensile strength of the cured film and curing film elongation at break were analyzed. The highest conversion rate was obtained under the following condition: the amount of modifying agent (TDI) and epoxy acrylate mole ratio was 0.25∶1, reaction time 5 h, the reaction temperature was 75 ℃, the mass ratio of the composite catalyst（triethylamine and DBTD）was 1:1, added in an amount of 0.1%. IR spectra confirmed the formation of the modified pre-polymer.

TGNET software has been widely used in the world, it can not only simulate the single pipeline transportation simple model, but also simulate the complex technology system contain multi supply, multi loop network, multi compressors, and multi valves, et. It was a long history software for gas transmission pipeline simulation. In order to play a guiding role in the operation of nature gas transmission pipeline by TGNET software, the actual production of Shuang 6 gas storage with the TGNET software was simulated. The simulation process included: The establishment of the pipeline gathering and transportation network model; Determined the gas model, the gas state equation and the friction coefficient formula. Shuang 6 gas storage input the basic parameters of the supply, gas pipeline and delivery; Start the simulation and output results. According to the simulation results, making a comparison table of the simulated pressure values and the measured pressure values of Shuang 6 gas storage, a comparison chart of pressure was drawn. The consequences showed that the relative error was less than 4.3% between the TGNET software simulation results and the actual production pressure, obtained the result of TGNET software that was suitable for the actual production situation of Liaohe oil field Shuang 6 gas storage.

A new improved non-dominated sorting genetic algorithm (NSGA-II) is studied aiming at solving the low purity, high energy consumption problems existed in vinyl chloride rectification process. The method can be used to solve the multi-objective optimization problem of vinyl chloride rectification process. The multi-objective optimization function with the energy consumption and purity of vinyl chlorides based on considering the various constraints of the mechanism model and the actual production conditions were established through the sensitivity analysis for the main operating parameters such as the feeding position and reflux ratio of high and low boiling tower and so on. Finally, the objective function is solved by using the improved NSGA-II. Compared to the NSGA-II, the experimental results show that the improved algorithm can get more uniform distribution of Pareto optimal solution set, which provides a strong support for the selection of parameters in the process of vinyl chloride distillation.

The Inner Mongolia Autonomous Region is facing the dual threat of drought, semi arid and regional water source environmental safety for a long time. Moreover, the technology for environmental safety management is seriously outdated. In this paper, we have established the basic database of the surface morphology, hydrology, water quality, pollution sources, fracture surface and spatial water source environmental information in the Inner Mongolia Autonomous Region. In consideration of the strong spatial characteristics of the water source environmental information, the Inner Mongolia Autonomous Region water environmental safety management information system is developed on the ArcGIS network platform with C++ language and B/S architecturein this paper. The system not only achieves the visual computer management of the spatial information of water source but also provides guidance for the division of water source and water source protection management combining with water source and environmental monitoring, pollution sources and other data for the environmental safety analysis. Using the developed method in some cities of Inner Mongolia, the system shows strong practicability, information display intuitive and good universality, which provides effective decision support for environmental safety, high efficiency management and early warning of the water source in the autonomous region.

According to the characteristics of air quality monitoring data, a clustering algorithm of multiple data streams based on synchronous correlation is presented. On the basis of the national environmental quality standards and the actual monitoring data, the air quality is evaluated and the correlation about the air pollution index is analysed. The result shows that the application of multi data stream clustering based on the synchronous correlation is feasible.