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2010 3rd International co.ference on Future BioMedical Information engineering (FBIE 2010)

作者： Luojun Gong1 2 3 4 Xinya Shu2 and co.gyi Zhang2 1co.lege of Fisheries Huazhong Agricultural University Shizishan Road 1# Wuchang District wuhan china 2Hubei Provincial Fisheries Research Institute wuhan china Bangxi Xiong1 Lansong Yang3 Qianhong Gu1and JieChen1 3Hubei Provincial Fishery Technical Extension Center Pengliuyang Road 237# Wuchang District wuhan china 4 wuhan water & sky biology-environmental engineering co. ltd Luoshi South Road 519# Hongshan District wuhan china

The paper gives an introduction to transformation of Procambarus Clarkii from being killed before to being applied and developed now, and the historical background of development of crop rotation technology of Procambarus Clarkii and mid-season rice in china. It focuses on crop rotation technology of Procambarus Clarkii and mid-season rice in china, involving environmental co.ditions of paddy field, engineering co.struction, placing mode of parent shrimps, placing mode of young shrimps, aquaculture management of adult shrimps, fishing and disease co.trol. Besides, the paper discusses the present status and prospect of crop rotation of Procambarus Clarkii and mid-season rice in china, and the main co.tents include: first, the market demand is large, thus crop rotation of Procambarus Clarkii and mid-season rice will co.tinue growing fast;seco.d, the total yield increases each year, and sales price maintains steady and decreases gradually;third, the production co.t is co.tinuously raised each year, and the co.parative benefit is reduced gradually;fourth, to improve the quality of shrimp species and guarantee supply of fingerlings;fifth, to develop high-quality baits and research bait casting technique;sixth, to pay great attention to diseases and improve aquaculture environment;seventh, to strengthen scientific research and develop aquaculture mode.

关键词： Procambarus Clarkii Crop Rotation Status and Prospect Mid-season Rice

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Effects of Heat Treatment Temperature and Time on Structure and Static Magnetic Property of W-type Ferrite Hollow Microspheres

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Journal of wuhan University of Technology(Materials Science) 2007年第1期22卷 168-170页

作者：任平 Energy Source and environmental engineering Department Shanghai University of Electric Power

Hollow spheres of hexagonal ferrite Baco.FelrO27 were fabricated through a spray pyrolysis technique using co.precipitation ferrite powder precursor as materials, followed by calcinations in an air atmosphere. The phase co.position, micro-morphology, and static magnetic property of the particles were measured by XRD, SEM, and VSM. The results indicate that the method for preparation of ferrite hollow microspheres （FHM） results in a broad particles size distribution. The density of FHM decreased from 5.31 g/ cm^3 to 2.31 g/cm^3. When the heating rate was 5℃/min, and temperature was 1 200℃ for 4 hours, pure W-type ferrites were formed. With the heat treatment temperature and time increasing, the crystal structure beco.es perfect, the saturation magnetization is increased and the co.rcive force is decreased.

关键词： microwave absorber ferrite hollow microspheres spray pyrolysis

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Magnesia-amended activated carbon for fluoride removal from drinking water

Magnesia-amended activated carbon for fluoride removal from ...

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2011中国材料研讨会

作者： Gaoke Zhang,Zhili He School of Resources and environmental engineering,wuhan University of Technology,wuhan 430070,china

Removal of fluoride from drinking water using magnesia-amended activated carbon （MgO-AC） was investigated in this *** MgO-AC was characterized by X-ray powder diffraction （XRD）,scanning electron microsco.e （SEM）,energy dispersive X-ray （EDAX） and N 2 adsorption-desorption *** adsorption experiments were co.ducted to study and optimize various operational parameters such as pH,co.tact time,adsorbent dose and initial fluoride *** results show that the adsorption equilibrium can be attained after 3 *** of fluoride onto MgO-AC was found to be pH dependant and a decrease in sorption was observed at higher *** were also performed to understand the influence of various other co.existing *** was the greatest co.petitor for fluoride followed by *** presence of other ions （chloride,nitrate and sulfate） has shown negligible effect on fluoride *** studies showed that the kinetic data were well described by the pseudo-seco.d-order kinetic model,suggesting the chemisorption *** adsorption isotherm was well fitted by the Langmuir ***-AC synthesized in this study exhibited higher affinity for fluoride as co.pared with references in literature and shows great potential for fluoride adsorption from drinking water.

关键词： Fluoride Adsorption Magnesia-amended activated carbon Drinking water Batch tests

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Geochemical Evidence of Gas Sources of co.2-Rich co.d Springs from Wudalianchi,Northeast china

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Journal of Earth Science 2009年第6期20卷 959-970页

作者：毛绪美王焰新 Oleg V Chudaev 王逊 Key Laboratory of Biogeology and environmental Geology of Ministry of Education China University of GeosciencesWuhan Far East Geological Institute Russian Academy of Science Institute of Hydrogeology and engineering Geology of Heilongjiang Province

co.-rich co.d springs occur near the active volcanoes at Wudalianchi （五大连池）, Northeast china. The springs are rich in co., with Hco.-as the predominant anion and have elevated co.tents of total dissolved solid （TDS）（〉1 000 mg/L）, Fe^2＋（〉20 mg/L）, Sr （〉1 mg/L）, and dissolved Si （〉20 mg/L）. The co.positions of escaped and dissolved gases of the springs are similar. The δ^13C values of escaped gases and dissolved gases in mineral springs at Wudalianchi vary from -8.77‰ to -4.53‰ and -8.24‰ to -5.26‰, while δ^18O values vary from -10.68‰ to -7.65‰ and -10.30‰ to -8.84‰, respectively, indicating the same upper mantle origin of co. of escaped gases and dissolved gases in the springs. Carbon and oxygen isotope fractionations and water-co. exchange were weak in the process of groundwater flow. The 4He co.tent exceeds 5 000×10-6 cm^3·STP/mL in escaped gases of the mineral springs, and the 3He/4He ratios of the escaped and dissolved gases vary from 2.64Ra to 3.87Ra and 1.18Ra to 3.30Ra, respectively. It can be postulated that the co. of mineral springs deriving from the magma chamber of the upper mantle moves upward to the surface, to increase the co.tent of 4He in the mineral springs and decrease the ratio of 3He/4He. The helium origin of escaped gases in springs can be calculated with the MORB-crust mixing model, but that in the north spring can be better explained with the MORB-crust-air mixing model due to the effect of mixing with surface water. However, dissolved helium in springs, except the north spring, is better explained with the MORB-crust-ASW mixing model.

关键词： δ^13C δ^18O, ^3He/^4He mineral spring co. Wudalianchi Northeast china.

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Preparation and Magnetic Properties of Mn-Zn Ferrites by the co.precipitation Method

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Journal of wuhan University of Technology(Materials Science) 2009年第6期24卷 875-878页

作者：李雪张俊喜 School of environmental and Chemical engineering Shanghai University Electrochemical Research Group Shanghai University of Electric PowerKey Laboratory of State Power Corporation of China

Mn-Zn ferrites （Mn1-xZnxFe2O4） with different co.positions were prepared by the co.recipitation method, and the influences of such synthesis co.ditions as pH value, co.position and volume ratio （R） of the mixed solution and NH4Hco. solution on their microstructures and magnetic properties were discussed. The samples were characterized by X-ray diffraction （XRD） and magnetization measurement instrument. Lattice parameters and average crystalline size of the synthesized materials were calculated from the co.responding XRD patterns with the related software Jade.5. For samples of different pH values, only one phase was found when pH values were 7.0, 8.0 and 9.0. The sample with pH value of 7.0 exhibited the highest saturation magnetic induction, the lowest co.rcive force, and crystallized best. For samples of different R values with pH value of 7.0, only one phase was observed in all samples, and the sample with R value of 2.3 exhibited the highest saturation magnetic induction and the lowest co.rcive force. The co.position has mainly afected the magnetic properties, and the saturation magnetic induction increases with the increase of the co.tent of Zn （x）, but decreases when x is beyond 0.6. The trend of co.rcive force is on the co.trary. However, no magnetism is exhibited when the x value is up to 0.8.

关键词： co.precipitation method microstructure magnetic property Mn-Zn ferrite

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DEco.POSITION OF BLACK LIQUOR BY ULTRASOUND PROCESS

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Chinese Journal of Reactive Polymers 2004年第Z1期 22-28页

作者： WU Xiaohui ZHOU Shan LU Xiaohua** Department of environmental Science and engineering, Huazhong University of Science and Technology, wuhan 430074, china

Ultrasound (US)-induced cavitation is an effective way in oxidizing organic co.taminants in wastewater either as the independent operation unit or in co.bination with other oxidation methods. In this paper, black liquor and filtrate after acidifying and settling were sonicated. The effect of working parameters on ultrasonic degradation of black liquor, such as different co.bination methods, frequency, power supply, initial co.centration, pH, duration time, ionic strength and catalyst were studied. The results were as follows: (1) At the co.ditions of 40kHz, 100W, 4h, pH at 6 and temperature 30?℃, utilizing US/US-H2O2/US-Fenton, weak-orange filtrate turned to co.loid with the increase of time and little sediment produced after settling. Especially filtrate came to be milk white co.lides and upper water approached to nearly achromatic by US-Fenton. co.pared with the US, US-H2O2/US-Fenton co. (Chemical oxidation demand) removal ratio can increase 15%, 30% respectively. Because of more hydroxyl radicals produced in the reaction process; (2) At the co.dition of 100W and 4h, the degradation efficiency of black liquor was better at 40kHz over at 20kHz. Moreover black liquor can be biodegraded easily. Those based on that the big molecule of co.taminants in aqueous solution can be changed into the little molecule with ultrasound (3) At the co.dition of 40kHz and 4h, the co. removal ratio of black liquor was more higher at 60W than at 80W, while the removal ratio of co. at 60W was nearly close to the ratio at 100W; (4) The initial co.centration of black liquor influenced the effect of sonochemical degradation; (5) The variation of pH had no effect on degradation; (6) The longer the duration time, the greater the removal ratio of co.. But this ratio increased slowly after 4h; (7) Adding 0.2g/L NaCl to change the ionic strength of the black liquor, the co. removal ratio can increase 10%; (8) The degradation rates increased by the co.xistent catalysts of TiO2, co.+ and Ag+.

关键词： Ultrasound (US) Black liquor Degradation Different co.bination methods.

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An Evaluation Method for co.bustion Characteristics of co.l in Cement Industry

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Journal of wuhan University of Technology(Materials Science) 2010年第1期25卷 174-178页

作者：陶从喜 School of environmental Science and engineering Tianjin University Tianjin Cement Industry Design and Research Institute co Ltd.

As the co.l co.bustion behaviors are rather co.plex in the cement industry, the traditional assessment method cannot be directly applied to evaluate the quality of co.l. Based on the thermal analysis tests of more than 80 kinds of anthracite and bituminous co.l, three evaluation parameters, namely, burning intensity （I）, average capacity of heat release （Q）, and general burning index （S） are presented, co.bining with the co.sideration of application and calciner types in the cement industry. Taking these three parameters into co.sideration together is necessary. Experimental results show that the co.l with higher S, lower I and higher Q can be rated as the best for the calciner in the cement industry. The quantitative indexes are given to evaluate the bituminous co.l and anthracite in this paper. This new assessment method has implications for the design of calciner in the cement industry.

关键词： co.l burning intensity average capacity of heat release general burning index calciner

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Synthesis and Characterization of Mg_3(PO_4)_2-co.ted Li_(1.05)Ni_(1/3)Mn_(1/3)co.(1/3)O_2 Cathode Material for Li-ion Battery

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Journal of wuhan University of Technology(Materials Science) 2009年第3期24卷 347-353页

作者：陈玉红 Department of Chemical and environmental engineering Hebei Chemical & Pharmaceutical Vocational Technology Colege

Mg3（PO4）2-co.ted Li1.05Ni1/3Mn1/33co./3O2 cathode materials were synthesized via co.precipitation method. The morphology, structure, electrochemical performance and thermal stability were characterized by scanning electron microsco.y （SEM）, X-ray diffraction （XRD）, cyclic voltammetry（CV）, electrochemical impedance spectrosco.y（EIS）, charge/discharge cycling and differential scanning calorimeter （DSC）. SEM analysis shows that Mg3（PO4）2-co.ting changes the morphologies of their particles and increases the grains size. XRD and CV results show that Mg3（PO4）2-co.ting powder is homogeneous and has better layered structure than the bare one. Mg3（PO4）2-co.ting improved high rate discharge capacity and cycle-life performance. The reason why the cycling performance of Mg3（PO4）2-co.ted sample at 55 ℃ was better than that of room temperature was the increasing of lithium-ion diffusion rate and charge transfer rate with temperature rising. Mg3（PO4）2-co.ting improved the cathode thermal stability, and the result was co.sistent with thermal abuse tests using Li-ion cells： the Mg3（PO4）2 co.ted Li1.05Ni1/3Mn1/3co./3O2 cathode did not exhibit thermal runaway with smoke and explosion, in co.trast to the cells co.taining the bare Li1.05Ni1/3Mn1/3co./3O2.

关键词： lithium-ion batteries cathode materials Li1.05Ni1/3Mn1/3co./3O2 co.precipitation

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Photocatalytic Activity of Lanthanum and Sulfur co.doped TiO_2 Photocatalyst under Visible Light

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Journal of wuhan University of Technology(Materials Science) 2008年第4期23卷 467-471页

作者： XIA Huili ZHUANG Huisheng XIAO Dongchang ZHANG Tao co.lege of environmental Science ＆ engineering Donghua University Sfianghai 201620 China

A novel lanthanum and sulfur co.doped TiO2 photocatalyst was synthesized by precipitation- dipping method, and characterized by X-ray diffraction（XRD）, transmission electron microsco.y（TEM） and UV-Vis diffuse reflectance spectrosco.y. co.pared with the S-doped TiO, La-doped TiO2 and the standard Degussa P25 photocatalysts, the lanthanum and sulfur co.doped TiO2 photocatalyst （the molar percentage of La is 3.0%） calcined at 450 ℃ for 2 h showed the strongest absorption for visible light and highest activities for degradation of reactive blue 19 dye in aqueous solution under visible light（λ〉400 nm） irradiation. It was also disco.ered that the co.doping of lanthanum and sulfur hindered the aggregation and growth of TiO2 particles, and the doping of lanthanum reduced slightly the phase transition temperature ofTiO2 from anatase to rutile.

关键词： photocatalysis TiO2 co.doping reactive blue 19 visible light

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Study on the Extraction and Purification of Microcystins （MC-LR）

Study on the Extraction and Purification of Microcystins （M...

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2010 3rd International co.ference on Future BioMedical Information engineering (FBIE 2010)

作者： Zhang Wenyi a Han Ningb Yao Lirong a Qiu Xiaolan a and Chen Xiaoliangb a School of environmental and Safety engineering ChangZhou University Changzhou City Jiangsu Province 213164 china b Department of Equipment ManufactureJiangsu Hengliang Centrifuge Manufacturing co. LTD Jintan City Jiangsu Province 213200 china

The MC-LR from the the blue-green algae of Taihu Lake was extracted, at the same time, a set of microcystins extraction method with methanol as extraction solvent and purification method with C18-SPE as purification workstations were established. The extraction solvent co.centration, extraction time, extraction solvent amount, leacheate co.centration and eluent co.centration were used to research the extraction efficiency of MC-LR. Finally, 80% methanol was used to wash microcytins to make MC-LR high purity and the purity was over 85%. This research presented a method of low co.t and high efficiency. It provided the foundation for the further research of microcytins.

关键词： Microcystins (MC-LR) Extraction Purification HPLC

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