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Construction of Recombinant E.coli Expressing A Thermophilic Catalase and Its Application in H2O2 Wastewater Treatment Yanhong Chang 1, a, Chunhong Shi 1,b , Yao Zhou2,c and Hui Luo 2,d* 1Department of Environmental Engineering, University of Science and Technology Beijing, Beijing, P.R.China, 100083 2Department of Biological Science and Engineering, University of Science and Technology Beijing, Beijing, P.R.China, 100083 ayhchang0512@yahoo.com.cn, bsch.22@163.com, czhouyao123@163.com, dluohui@ustb.edu.cn Keywords: Catalase; Cultivation conditions; Recombinant strains; H2O2 wastewater.
Materials and Methods A.
Figure 3 The effect of initial pH of the medium on the catalase activity The effect of temperature on catalase activity For a heterogeneous gene expression in recombinant E.coli, the temperature of cultivation is always a key variable to be considered for the sake of the active form of recombinant protein.

Optimization of COD and Color Removal for Matang’s Landfill Leachate Treatment by Using Polyaluminum Chloride Mohd Faiz Muaz Ahmad Zamri1 , Mohd Suffian Yusoff1,a * , Hamidi Abdul Aziz1 and Mohd Anuar Kamaruddin1 1 School of Civil Engineering , Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300, Nibong Tebal, S.P.S, Pulau Pinang, Malaysia asuffian@usm.my Keywords: Leachate reattment, coagulation, polyaluminium chloride and central composite design Abstract.
Materials and Method A sample of leachate was obtained from Matang Landfill.
Its superiority over other Al species especially Al3+ (key Al species from alum and AlCl3 hydrolysis) is supported by the fact that it has the greatest charge neutralisation ability, higher structural stability and nanosized molecular diameter [12].

Pilot Study of a Hybrid Process combining Oxidation- coagulation -microfiltration for Drinking Water Production from Surface Water Yali Song1, 2,a, Bingzhi Dong2,b , Naiyun Gao2, c, Yufang Yang3,d, Chun Chang3,e, 1 School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China; 2 College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China 3 Toray Fibers & Ttextiles Research Laboratories (China) Co.
Table 2 Membrane characteristics Parameters MF membrane Material PVDF Type Hollow fiber Pore size (µm) 0.1 Membrane surface area (m2) 7.0 Type of filtration Dead-end Type of pressure Outside-inside MF membrane process included two-step: filtration and backflushing.
Furthermore, MF membrane can remove little organic matter, so pre-oxidation aimed at increasing removal of organic material in the experiment.
Acknowledgements This research is financially supported by the National Key Technologies R & D Program “Drinking Water Safety Ensuring Technologies and Instruments Development for Small Cities and Towns”（2006BAJ08B02）and the S&T plan projects of Zhejiang Provincial Education Department (Y201119321) .

Effect of Limited Irrigation and Nitrogen on Ecological Index and Water Use of Arabica Coffee Xiaogang Liu1, a, Yuan Zhong1, b, Xinle Wang2,c and Qiliang Yang1 1 Faculty of Modern Agricultural Engineering,Kunming University of Science and Technology,Kunming, 650500, China 2 Faculty of Foreign Language and Culture,Kunming University of Science and Technology,Kunming, 650500, China aliuxiaogang666@qq.com, bchans50@163.com, cnysywxl@126.com Keywords: Limited irrigation; Arabica coffee; Ecological index; Dry mass accumulation; Water use efficiency Abstract.
Materials and methods Test had been finished in the intelligent greenhouse in faculty of modern agriculture engineering, Kunming University of Science and Technology from April to Nov. 2012.
Acknowledgment We are grateful to the research grants from the National Natural Science Foundation of China (50879073, 51109102 and 51009073), the Natural Science Foundation of Yunnan Province (2010ZC043, 2010ZC042), Key Project of Yunnan Education Department (2001Z035) and Public-benefit Project of Ministry of Water Resources(201101042).

Study on the photo-electro-catalytic oxidation of methane Wenyan Wu1,a, Luochun Wang1,b , Zhen Zhou1,c , Kejia Liu1,d , Xiaohua Li1,e and Youcai Zhao2,f 1 College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 2 College of Environmental Science and Engineering, Tongji University, Shanghai awwy_2007@yeah.net, bwangluochun@shiep.edu.cn, czhouzhen@shiep.edu.cn, d liukejia6711271@163.com, elixiaohua0808@126.com, fzhaoyoucai@tongji.edu.cn Keywords: photo-electro-catalytic; methane; kinetics Abstract.
Because the nonpolar methane molecule was only weakly physisorbed on the surface of polar TiO2, K<<1, transformation of Eq. (2) (3) The methane oxidation rate is proportional to the methane concentration, and the oxidation rate of methane fit a first-order reaction (4) Since the methane initial concentrations and photocatalytic materials in the experiments were the same, the degradation rate of methane can also be expressed by apparent rate constant k (k =κK) (5) The methane concentration dependence on reaction time followed an exponential law
Acknowledgements This work was financially supported by Key Innovation Program of Shanghai Municipal Education Commission (12Z171) of China.

Experimental Study on Concrete-Filled Glass Fiber Reinforced Gypsum Wall Panel Compression Members Kaozhong Zhao1,2, a, Feng Wang1 and Xiaofeng Bian1 1College of Civil Engineering, Shandong Jianzhu University, Jinan250101, China 2Shandong Provincial Key Laboratory of Appraisal and Retrofitting in Building Structures, Jinan250101, China aZKZ@sdjzu.edu.cn Keywords: Concrete-filled glass fiber reinforced gypsum wall panel; Compression member; Bearing capacity; Failure mechanism; Experimental study Abstract: The concrete-filled glass fiber reinforced gypsum wall panel is a kind of panel that the inside cavums of the glass fiber hollow gypsum panel are filled with concrete, which can be used as the bearing wall of a building.
The standard wall panel is 3m×12m, which can be cut according to the design in the engineering application as shown in the Figure 1.
The wall panel is typical green building material product with many features, such as deadweight light, good heat preservation, economy energy resources.
For the further popularization and application of the new wall material, the inside cavums can be filled with concrete to form concrete filled glass fiber reinforced gypsum wall panel.

aamirk@uthm.edu.my, bhanis@uthm.edu.my Key Words: Biodiesel, Straight Vegetable Oil, Fuel Properties, Water Content, Flash Point Abstract Biodiesel is an alternative fuel derived from varies sources of vegetable oils, animal fat, or waste frying oil to give the corresponding fatty acid methyl ester.
These properties test are based on the European Standard for Biodiesel (EN 14214) and American Society of Testing Materials (ASTM D6751), as shown in Table 1.
Manshoor, “Performance and Emissions Characteristics of Diesel Engine Fuelled by Biodiesel Derived from Palm Oil”, International Conference on Mechanical & Manufacturing Engineering (ICME2012), pp.1-5, 2012
[7] Amir Khalid, Tomoaki Yatsufusa, Takayuki Miyamoto, Jun Kawakami, Yoshiyuki Kidoguchi, Analysis of Relation between Mixture Formation during Ignition Delay Period and Burning Process in Diesel Combustion, Small Engine Technology Conference 2009 (SETC2009); Society of Automotive Engineering (SAE), SAE Technical Papers No. 2009-32-0018, 2009 [8] Prussi, M., Chiaramonti, D., Riccio, G., Martelli, F., & Pari, L. (2012).

Determination of Trace Copper With Sulfophenylazo Rhodanine by Catalytic Dynamic Spectrofluorimetry Yuanna Zhu1, a, Yaming Chen1,b, Shenguang Ge2,c and Jinghua Yu2,d* 1 School of Material Science and Engineering, University of Jinan, Jinan 250022, China 2 Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China aemail: mse_zhuyn@ujn.edu.cn, bemail: mse_chenym@ujn.edu.cn, cemail: chm_gesg@ujn.edu.cn, demail: chm_yujh@ujn.edu.cn, corresponding author Keywords: Sulfophenylazo Rhodanine; Substituent groups; Catalytic Dynamic Spectrofluorimetry; Copper Abstract.
Fig.2 Excitation spectra and emission spectra of system 1,1’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution 2,2’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution- 0.1 μg·mL-1 Cu2+ (1.0 mL) 3,3’:2.0×10-5 mol·L-1 M3ClRASP- 2.0×10-3 mol·L-1 KIO4- buffer solution 4,4’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.7 mL) 5,5:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.9 mL) 6,6’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (1.0 mL) Tab.1 Optimized conditions of every material Reagents pH V(Rhodanine, 2.0×10-5 mol·L-1, mL) V(Buffer solution, mL) V(Oxidation,2.0×10-3 mol·L-1, mL) M3ClRASP 5.0 1.0 2.2 1.0 3ClRASP 5.0 1.0 1.8 0.8 M3MRASP 5.0 1.0 2.2 1.0 3MRASP 5.0 0.8 2.0 0.9 Influence of temperature on reaction speed.

Co-Precipitation Synthesis and Photoluminescence Properties of K2SiF6:Mn4+ Red Phosphor for White Light Emitting Diodes Di Wu1,3,a, Xin-Yu Ye 1,2, Lin-Sheng Wang 1,3, Qing-Hua Zeng 1 1National Engineering Research Center for Ionic Rare Earth, Ganzhou 341000, China 2School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China 3Ganzhou Nonferrous Metallurgy Research Institute, Ganzhou 341000, China a511965684@qq.com Keywords: Co-precipitation; K2SiF6:Mn4+; white LEDs; fluoride phosphor Abstract: A novel red-emitting K2SiF6:Mn4+ phosphors with different Mn4+ doping mole fraction were synthesized by co-precipitation method.
Therefore, the development of a new type of high efficient red phosphor which is suitable for the blue excitation is the key to obtain high brightness, high luminous efficiency and high color rendering for white LEDs.
This may be due to concentration quenching, namely, a high doping concentration can reduce the Mn4+-Mn4+ distance to form a Mn4+ ion-pair in the host material and generate non-radiative transitions[24-25], resulting in reduced luminous intensity as excited electrons migrate from one Mn4+ to another Mn4+ ion-pair.
The monoexponential behaviour indicates that Mn4+ has effectively entered the host material and replaced only one type of lattice site of Si4+.

Roads are the key infrastructure that is needed to support the smooth transportation to improve the condition of the community economy.
Various methods and schemes are used for priority analysis ranging from simple lists based on engineering assessments to correct optimization based on mathematical formulations.
Getahun, Analysis on Road Safety Inspection using Analytical Hierarchy Process (AHP) Method A case study in Addis Ababa city, Thesis of the School of Civil and Environmental Engineering, Addis Ababa University, Ethiopia, 2017
Rani, Development priority of Road Infrastructure the Aceh post tsunami in Simeulue District, International Journal of Civil Engineering. 6:3 (2017) 9-17
Series: Materials Science and Engineering. 615 (2019) 012106