論文翻譯示例

論文翻譯示例-中譯英

【摘要】 酚類物質通過工業廢水的排放、殺蟲劑的使用、飲用水消毒等途徑進入到環境中,廣泛存在於自然水體和沈積物中,對水中生物造成危害,會幹擾它們的內分泌系統和激素水平。藻類在酚類物質生物降解方面有很好的優勢,但環境條件的變化會影響藻的降解行為。本文選擇淡水中常見的綠藻蛋白核小球藻(Chlorella pyrenoidsa)用於去除可解離的酚類化合物,2,4-二氯苯酚(2,4-dichlorophenol,2,4-DCP),通過短期和長期培養實驗,旨在研究密閉環境中初始pH、2,4-DCP初始濃度、光暗比、碳源條件以及馴化處理等對小球藻去除2,4-DCP的影響,結果如下:本文通過超聲細胞破碎儀輔助萃取對生物樣品進行前處理,並建立了GC-MS方法用於測定水相和藻中2,4-DCP濃度,方法檢出限分別為0.390μg/L和0.010μg/mg。考察了短期內藻密度基本不變情況下,初始pH和2,4-DCP初始濃度對蛋白核小球藻去除2,4-DCP的影響。

【Abstract】 Phenolic compounds can enter into the environment during the discharge of industrial wastewater,the use of pesticides and the disinfection of drinking water.Their wide existence in natural waters and sediments leads to disturbances of endocrine system and hormone level of aquatic organisms.Algae have a good potential in the biodegradation of phenolic compounds,however depend on environmental conditions.In this study,we selected Chlorella pyrenoidsa,a common green algae in freshwater,to remove 2,4-dichlorophenol(2,4-DCP),an ionizable phenolic compound.The research aimed to study the influences of different environmental conditions on the removal of 2,4-DCP by Chlorella pyrenoidsa in a closed-system,through short-term and long-term culture experiments,as well as the domestication.The main results are showen as follows:It was established in the study a method for determination of 2,4-DCP concentration in water and algae phases by gas chromatography–mass spectrometry(GC-MS)with the application of ultrasonic solvent extraction in the pretreatment of biological samples.The method detection limits were 0.390 μg/L and 0.010 μg/mg,respectively.In this study,the effects of initial p H and initial 2,4-DCP concentration on the removal of 2,4-DCP by Chlorella were investigated.