超聲波-硫酸自由基技術(shù)處理船舶壓載水的研究.pdf

1、大連海事大學(xué)碩士學(xué)位論文超聲波硫酸自由基技術(shù)處理船舶壓載水的研究姓名：王小蓓申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：環(huán)境科學(xué)與工程指導(dǎo)教師：劉瑀20090601英文摘要ABSTRACTBallastwaterisamajorfactorcontributingtointroductionsofaquaticplantsandinvasivemacroinvertebratesAlthoughitistakenaboardinmostvesselsino

2、rdertoprovidetrimandstabilitywithinoperationalandengineeringsafetystandarsBallastwaterhasbroughtahugelosstoeverycoastalcountryatpresentTheGEFhasconfirmedthatballastwatertobeoneoffourgreatthreatstotheoceans2004，IMOpassedt

3、heInternationalConventionfortheControlandManagememofShips’BallastWater&SedimentsThiscontainsdeterminedappropriatestandardsofballastwatertreatmentBebasedontheresultsoftheothermembersinballastgroup，theultrasoundsulfateradi

4、caltechnologyhasbeenproposedandstudiedtotreatballastwaterThepaperusedultrasoundtechnologytotreattheunicellularalgaeinballastwateratfirstsuchasPsubcorodiformis，DicrateriaspandChlorellavulgarisAftersearchforthebestcombinat

5、ionofpowerandfrequencyofultrasound，combined晰tllthesulfateradicaltechnologythelethaleffect，phy’sicalharmandthecontentofchlorophyllofunicellularalgawereinvestigated，andtheconcentrationofanionsinwaterbeforeandaftertreatment

6、WasanalyzedTheconclusionsareasfollows：(1)Whenusingtheultrasoundtechnologytotreatthethreespeciesofalgae誦tllthepowerof500W，thetreatingtimeof5minandthefrequencyof50％，theresultsshowedthatPsubcorodiformisandDicrateriaspwereal

7、ldie，thelargestlethalrateofChlorellavulgarisWas76％(2)ThethreespeciesofalgaewerealldeadbyusingtheultrasoundsulfateradicaltechnologyWiththeconcentrationincreasing，thetreatingtimeofultrasoundWassignificantdecreasingAsthepow

8、erofultrasoundWas500WthetreatingtimeWas1minandthefrequecyWas50％，theconcentrationofsulfateradicalWas5359／L，thelethalratesofthethreealgaewere100％(3)Theincreacingofchlorophyllawasretrainedafterthetreatingofultrasoundsulfate

9、radicaltechnologyUnderthesameenvironment，theregressionrateofthesamealgaeWasrisingwiththeincreasingofconcentrationofsulfateradical(4)ToassaythewaterqualitywhichWastreatedbyusingthemethodofultrasoundsulfateradicaltechnolog