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1、———————————型絲塑篁墜—————一——飾后水稻秸稈的解吸率即可達到90％以上。通過吸附～解吸循環(huán)10次的試驗表明，水稻秸稈的吸附容量沒有發(fā)生明顯的變化，表明修飾水稻秸稈在富營養(yǎng)化水體處理方面，具有較高的實用價值。關(guān)鍵詞：水稻秸稈；乙二胺；吸附；磷酸根llI鬻簿霧鬟菌泌壤溱薹窨，葛P霧荽囂黼繁㈣耥翳掛蠡薯’藕}瓣醚垂鎏鍾池粼漂震霧好≯囂善j鬻翳黼黝灌糍冀黼鬻羹囊馨燃鬻震麟鬣澎勘駕貶礎(chǔ)∽姆嘲攝囂蓬Ⅳ監(jiān)器。拳麓鬟》驂劈姓翁藎黲蠹成鼯薅翥～囂薩蟾籍磐鬻鬻露灞潮淄黼蠶溺瀚躺』__掣，}^；i％i亳≯￡^。，*鼻．．
2、邛璀融鬣澎．。囂麓擎露孥捧濺凌鞲瓣鬻麟就冀《l*№羧戛營囊目攀辮卅攀聹一囂豁污∞瓣繁鼙一嗣群弱鬟鍵溺翥簸鎏蠢鍪m娶m群AbstractRicestraws(RS)areregardedasabundantandavailablebiologicalresources．Butmostofthemareabandonedorcombustedwithoutproperutilizationleadingtoenvironmentalpollutionandsafetyincidents．Theproblemofeutr
3、ophicationisoneoftheseriouswaterpollutionproblems．Itmainlybecauseofexcessivenutrientsinwatercontainingnitrogenandphosphorusavailableforalgae，inwhichphosphorusisthelimitingfactorofthealgaeproliferationiscausedbywatereutrophic·ationkeynutrients．Inthispaper，theor
4、iginalmethodbasedonricestrawanionicsorbentsynthesizedandappliedtowater，phosphateadsorptionstudies．Modifiedricestraw(MRS)waspreparedfromriceresidueafterreactionwithepichlorohydrinandtriethylamineinthepresenceofN，N—dimethylformamideandethylenediamine．Anoptimalsy
5、nthesisconditionofMRSWasdeterminedafterthesingleinfluentialfactorexperiments．Dataofphosphateremovalandyieldwereusedasperformanceindicatorsoftheproductsprepared．ThephysicalandchemicalcharacteristicsofRSandMRS’wereexaminedbylotsofinstruments，suchasscanningelectr
6、onicmicroscope，elementalanalysisinstrument，infraredspectroscopyinstrumentandavarietyofchemicalmethods，andwerecomparedwiththeoriginalricestraw．Theresultsindicatedthatthedosagesofreactants，experimentaltimeandexperimentaltemperaturesallinfluencedthepreparationofM
7、RS，SOtheconditionsshouldbestrictlycontrolledinthemodificationprocess．Thebestadsorptionconditions：pH4to1O；adsorbentdosageof59／L；temperatureontheadsorptioneffectisnotsignificantlyaffected，SOtheactualapplicationisnotsubjecttothelimitationsofseasonaltemperature．Th
8、erateofphosphorusremovalwasmorethan90％．ThephysicalandchemicalcharacteristicsofMRShadsignificantdiffei‘encewiththoseofRS．ThesurfaceofMRSwereasclearerandsmootherincomparisonwithRS，an
