By using methyl methacrylate (MMA) as the harder monomer, butyl acrylate (BA) as the softer monomer, acrylic acid (AA) as the functional monomer, acetoacetoxyethyl methacrylate (AAEM) as the crosslinking monomer, tert⁃butyl peroxybenzoate as the initiator, propylene glycol butyl ether as the solvent for prepared self⁃crosslinking acrylate emulsion by free radical solution polymerization and phase inversion, and the emulsion could be self⁃crosslinked after baking at high temperature without additional crosslinking agent. This article mainly studied the influence of acrylic acid, acetoacetoxyethyl methacrylate and curing time on the performance of the polyacrylic resin dispersion and the film property. The results show that the optimized formula is as follows: The dosage of AA and AAEM are 3.5% and 5.0% of the total monomer mass, respectively, and the baking time is 1.0 h at a curing temperature of 180 ℃. FT⁃IR and GPC analysis showed that AAEM was successfully attached to the molecular chain of acrylic resin; SEM and particle size analyzer analysis showed that the TG of the film is latex particles were spherical and uniformly distributed; DSC analysis showed that after the synthesized resin dispersion is significantly increased after the synthesized resin dispersion is baked at high temperature for a period of time.

Methoxypolyethylene glycols (mPEG) was first modified with succinic anhydride to obtain carboxylic acid terminated mPEG(mPEG⁃COOH). Epoxy resin emulsifier was fabricated by mixing the mPEG⁃COOH with epoxy resin, and the stable aqueous epoxy resin emulsion was obtained by phase inversion technique. The emulsifier structure, particle size distribution and the emulsion stability were characterized by infrared spectroscopy, high performance liquid chromatography and particle size analyzer. The effects of the molecular weight of mPEG, the type of epoxy resin and the emulsifier concentration on emulsion stability were carefully studied. The results showed that aqueous epoxy emulsifier and waterborne epoxy emulsion were successfully prepared. The aqueous epoxy emulsion has a particle size distribution of 0.8~1.5 μm and good emulsion stability. The obtained cured films by reacting the emulsion and amine curing agent at room temperature showed good water resistance and pollution resistance. Its water absorption rate and water loss weight loss rate were 0.35% and 0.25%, respectively.

Composite oxides are of great interest to researchers due to their excellent physicochemical properties, while zirconium⁃containing composite oxides are used in catalytic hydrodesulfurization, dearomatization, gas phase Beckmann rearrangement reactions of cyclohexanone oximes, and removal of organic contaminants that have wide range of applications. This article reviews the three main preparation methods for zirconium⁃containing composite oxide catalysts (sol⁃gel method, hydrothermal synthesis method, co⁃precipitation method) as well as the defects and advantages of these three methods. Some other preparation methods are also briefly introduced.

N,N'⁃methylenebisacrylamide (MBA) is used as a crosslinking agent, octadecyl acrylate (SA) is a hydrophobic monomer, and dimethylaminoethyl methacrylate (DMAEMA) is a hydrophilic monomer. Vinyl porphyrin (MTPP) is a photothermal monomer, and PSDM⁃MTPP shape memory hydrogel with red light responsiveness was successfully prepared by free radical copolymerization. The experimental results show that a low light intensity (<528 mW/cm2) and a short irradiation time can motivate the PSDM⁃MTPP hydrogel recover to original shape. Moreover, maintaining multiple intermediate states and regioselective responses. This shape memory gel with fast response, high recovery rate, remote control and spatial selectivity has potential application value in biomedical field. The obtained shape memory hydrogel with fast response, high recovery rate, remote control and spatial selectivity provided potential application in biomedical field.

The reservoir in Shuangtaizi area in the western depression of Liaohe Oilfield belongs to low to ultra low porosity, low permeability and extra low permeability reservoir and high content of clay mineral, when waterflood development was applied to the extra low permeability reservoirs, reservoir protection measures were crucial. But the traditional test method of sensitivity flow was not the appropriate evaluation method to the tight sandstone oil and gas reservoirs, thus the surface area method and the positive inflation method were applied to evaluate the water sensitive of reservoir. And on the basis of the new method to determine the water sensitivity the reservoir of the area in Shuangtaizi was medium to strong, therefore site development needed to take antiinflation measures.

Polyaluminium chloride (PAC) and PANDCD compound with coagulant was used to coagulate solute colloid or suspended particles in dye wastewater from a coloured socks factory. The influence of pH, coagulant dosing quantity, coagulation settling time on the coagulant performance are investigated and the coagulant performance was evaluated by the removal rate of COD and chroma. The results indicate that: compound coagulant in the treatment effect is better than single coagulant|the best operating conditions for compound coagulant to treat the dye wastewater was: compound coagulant dosage 10 mg/L, coagulation settling time 25 minutes, pH=7. In this case, the removal rate of chroma was 97.7%, removal rate of COD was 67.2%.

The article adopted a kind of biological treatment technology of the circulating cooling water treatment. To four of the same water sample with different content of an enzyme preparation, determine water COD and ammonianitrogen through the effect of enzyme and microorganism. The results show that: The water samples have enzyme preparation played a significant effect to the degradation of COD and ammonianitrogen compared to the water sample with no enzyme preparation, and with the improvement of enzyme preparation content, the effect of the degradation of COD and ammonianitrogen reveals more and more good, and treated water is neutral. When enzyme preparation of dosing quantity for water sample of thirtytwo over one thousand, the removal rate of COD as high as 89% and ammonianitrogen as high as 95%.

This research is mainly about the electrochemical oxidation technology for the treatment of waste water from biochemical pool of the acrlic fiber company, using the national standard test method for COD, NH3-N, chroma and chlorion as four indicators for analysis. The results show that chroma, ammonia nitrogen and COD can be effectively removed in the process of electrolysis. Among them, ammonia nitrogen removal rate is up to 100%, while the chroma removal rate is up to 99%,and COD removal rate is up to 89%. After the completion of the reaction, chlorion content also can be reduced to a national level of discharging standard, which indicates that electrochemical catalytic oxidation technology has a rather good application prospect. Through the analysis, we can make a conclusion that chroma and ammonia nitrogen can be completely removed within 10 min and 30 min respectively. The ammonia nitrogen removal rate is a function of electrolytic voltage, and chlorion has response characteristics of the first order reaction, COD removal rate constant and chlorions removal rate constant has a good correlation. This will be instructive for the design of electrochemical oxidation reactor and industrial operation.

In the production of hazardous chemicals present through the use or process of enterprises and institutions to investigate, determined the focus of prevention in Fushun City, and established a spatial database of dangerous goods and hazardous source spatial database. The environmental mathematical model was integrated into the geographic information systems, the use of geographic information system software MapObject and programming software Visual Basic 6.0, established Fushun unexpected environmental pollution emergency information. The system can simulate the migration of pollution diffusion process group to predict pollutant concentration and time of arrival, location in the event of accident quickly and easily in the event of accident, warning information timely in order to start the plan, prevent and mitigate the losses caused by pollution.

 

Fuel oil leakage of heat exchanger is a general question in the circulating water system of Chinas petrochemical industry. The hidden leakage in the heat exchanger of circulating water system makes it difficult to be discovered in time when it leaks. Thus it leads to a large amount of oil spill, the corrosion of water cooling equipment, and potential hazards of systems normal operation and safe production. Therefore, it is very important to develop one technology for safe production of the units and the long period operation of system that can promptly distinguish the leakage material and leakage spot. According to the vector angle method, programmings with VB6.0 that can auto analyze two liquid spectrograms and calculate the similarity. The results show that this method can evaluate the similarity of liquid chromatography very well and it can be used for the leakage detection of the refinery circulating water system.

Different effects to the shear bond strength of epoxy adhesive coating in several surface treatment methods were studied in the experiments where mechanical processing, acid pickling, cold parkerizing process and coupling treatment methods were used. According to the experimental data, the relationship curve between the surface roughness and shear bond strength of epoxy adhesive coating was mapped, and a detailed theoretical analysis after comparing the test results was made. The results show that the two methods of cold parkerizing process and coupling treatment can improve the shear bond strength of epoxy adhesive coating significantly.

Ozone-active carbon-nanofiltration technology was applied to the removal of the pollutant in drinking water. The result shows that nanofiltration can control the inorganic pollutant within certain regulated ranges while preventing some ions that benefit people from being completely blocked off. For the technology can effectively remove TOC, AOC, COD, chromaticity, turbidity and bacteria, the safety and biological stablization in drinking water is guaranteed.

A 110 days'experiment was carried out to study a pilot-scale integrative A/O(anaerobic/ aerobic) MBR treating domestic wastewater from an university. Influent wastewater was stopped from day 51 to day 56 and the activated sludge was feeded by faecula and urea, and inlet was restarted on day 57. Chemical Oxygen Demand(COD)，Biochemical Oxygen Demand(BOD5)，Ammonia Nitrogen(NH+4N) and Total Phosphorus (TP) concentration was investigated in different part of the system. The average removal efficiency of COD,BOD5, ρ(NH+4-N),TP was 95.10%，90.96%，93.02% and 93.37%, respectively, mainly digested in anoxic tank. MLSS and SV in the aeroic tank increased gradually and stayed steadily on 8 600 mg/L and 85%, respectively. SVI was lower than 112.1 mg/L during the whole experiment. The value of MLVSS/MLSS, which reflects the sludge activity, descended slightly in 110 days'study, especially on the anaphase. The results shows a promising future for the application of this system for municipal wastewater reclamation.

The software Pro/E was adopted to create a three-dimensional physical model of the virtual prototype of a single bucket backhoe hydraulic excavator work device. The model was transferred into ADAMS to build a virtual prototype of the work device. A work cycle of excavator work device, as well as the tangential force, the normal force and the gravitational force of the materials was successfully simulated by using the function step. With the simulation, load-time curves of three hinge points whose articulated stresses are more complex were obtained. The research has provided the basis for the design of the excavator devices.