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国际实验植物学杂志(英文) 2023年第10期92卷 2875-2890页

作者： Asmaa Salah Hoda Sany Abo El-Khair B.El-Sayed Reham M.El-Bahbohy Heba I.Mohamed Ayman Amin Plant Physiology Division Department of Agricultural BotanyFaculty of AgricultureCairo UniversityGizaP.O.Box 12613Egypt Algal Biotechnology Unit National Research CentreDokkiGiza12622Egypt Biological and Geological Science Department Faculty of EducationAin Shams UniversityCairo11341Egypt

Water is the most essential natural resource for the future *** production is extensively water-dependent and a significant polluter of water ***,this work investigated the effect of two different preparation media[Bold’s Basal Medium(BBM)and Domiati cheese whey(DCW)]for agricultural drainage water(ADW)*** treatments were incubated for 6 *** to the results of biomass productivity,sp.cific growth rate,photosynthetic pigments,and biochemical composition,desmodesmus *** grow in drainage water without *** two treatments significantly reduced the concentration of nitrate,phosp.ate,chemical oxygen demand,and sodium in ***,using cheese whey with BBM as inoculum preparation media enhanced the lipid accumulation in the algal biomass(25.4%w/w)and gave the best biodiesel properties among ***,combining remediation of drainage water with microalgae mass production can achieve the sustainability of agriculture.

关键词： desmodesmus sp. drainage water nutrients recycle photosynthetic pigments phycoremediation water scarcity

Thermal cracking products and bio-oil production from microalgae desmodesmus sp.

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International Journal of Agricultural and Biological Engineering 2017年第4期10卷 198-206页

作者： Li Gang Xiang Shunan Ji Fang Zhou Yuguang Huang Zhigang School of Material Science and Mechanical Engineering Beijing Technology and Business UniversityBeijing 100048China China Agricultural Machinery Testing Centre Beijing 100122China Chinese Academy of Agricultural Engineering Beijing 100125China College of Engineering China Agricultural UniversityBeijing 100083China Key Laboratory of Clean Production and Utilization of Renewable Energy Ministry of AgricultureBeijing 100083China

Qualitative and quantitative analyses of thermal cracking products from desmodesmus *** performed based on pyrolysis-gas chromatography-mass sp.ctrometry(Py-GC/MS)at different temperature regimes(350℃-750℃).After further analysis of a series of total ions chromatogram(TIC)and summarized,thermal cracking products of desmodesmus *** different temperature regimes can be obtained,which mainly comprised of aliphatic hydrocarbons,nitrogen compounds,aromatic hydrocarbons,fatty acids,ketones,alcohols,aldehydes and furan *** to bio-oil production at 650℃(32.07%),desmodesmus *** at 750℃could produce the highest bio-oil content of 42.25%.However,higher temperature could lead to the formation of contaminants(nitrogen compounds and PAHs)more ***,considering the higher content of bio-oil conversion and less pollutants generation,the optimum temperature for desmodesmus *** cracking conversion was about 650℃.

关键词： microalgae desmodesmus sp. thermal cracking bio-oil production pyrolysis

Analytical study on pyrolyzed products of desmodesmus *** in BG11

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International Journal of Agricultural and Biological Engineering 2017年第3期10卷 218-226页

作者： Li Gang Ji Fang Xiang Shunan Zhou Yuguang Jiang Mengmeng Huang Zhigang School of Material Science and Mechanical Engineering Beijing Technology and Business UniversityBeijing 100048China Chinese Academy of Agricultural Engineering Beijing 100125China China Agricultural Machinery Testing Centre Beijing 100122China College of Engineering/National Center for International Research of BioEnergy Science and Technology China Agricultural UniversityBeijing 100083China Key Laboratory of Clean Production and Utilization of Renewable Energy Beijing 100083China

Pyrolysis-Gas Chromatography-Mass sp.ctrometry(Py-GC/MS)was adopted to determine the changes in component of BG11-cultivated desmodesmus sp.(BG11/8-10)pyrolyzed products at different temperatures(300℃-800℃).The results of analysis on a series of total ions chromatogram(TIC)showed that pyrolyzed products of BG11/8-10 at different temperature mainly included aliphatic hydrocarbons,nitrogen compounds,aromatic hydrocarbons,fatty acids,ketones,alcohols,aldehydes and furan *** to the bio-oil(42.36%)generated by pyrolysis at 700℃,the relative content of bio-oil generated at 800℃was the highest up to 56.96%.However,higher temperature could easily cause the generation of large quantities of such pollutants as nitrogen compounds and polycyclic aromatic hydrocarbons(PAHs).Therefore,based on lower pollutant discharge and higher bio-oil yield,the optimal pyrolysis temperature of BG11/8-10 was around 700℃.

关键词： desmodesmus sp. microalgae pyrolyzed products pyrolysis temperature bio-oil

Comparative study on cultivation of microalgae for nutrient removal and lipid production in different artificial wastewaters

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International Journal of Agricultural and Biological Engineering 2017年第1期10卷 107-114页

作者： Hao Rui Yu Zhen Li Jinchen Gao Min Ma Weiling Zhu Yi College of Food Science and Nutritional Engineering China Agricultural UniversityBeijing 10083China

Wastewater contains high concentration of nutrients,like nitrogen and phosp.orus,which have been identified as the main reasons for water eutrophication and serious ecological ***,cultivating a tolerant and adaptive microalgae strain in wastewater is considered as a promising approach for sustainable biomass/lipid *** potential usages of desmodesmus *** biomass and lipid production within different artificial wastewater(AW)were investigated and the removal efficiencies of nutrient were *** maximum removal rate of chemical oxygen demand,ammonia nitrogen,nitrate nitrogen and phosp.ate were 272 mg/(L·d),14.021 mg/(L·d),7.774 mg/(L·d)and 3.347 mg/(L·d),resp.ctively in AW2,AW3,AW5 and *** biomass(1.159 g/L)and lipid(280 mg/L)productions were observed in AW5,while the highest lipid content achieved was 37.42%in *** acid analysis showed that lipids extracted from AW-cultivated desmodesmus *** 59.57%-77.79%polyunsaturated fatty acids(30.6%-44.47%was linoleic acid).

关键词： microalgae desmodesmus sp. artificial wastewater nutrient removal biomass production lipid production