欢迎来到天天文库
浏览记录
ID:53748062
大小:391.76 KB
页数:6页
时间:2020-04-22
《浅水湖泊升流循环复氧装置的研制与性能-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第65卷第2期化工学报Vb1.65NO.22014年2月CIESCJoumalFebmarygj{¨一研一一究一⋯论一浅水湖泊升流循环复氧装置的研制与性能一文一刘海洪,李先宁,蔡杰(东南大学能源环境学院,江苏南京210096)摘要:本研究为浅水型湖泊“黑水团”暴发后的应急复氧研制出三套升流循环复氧装置。三种装置均采用气弹释放循环复氧流复氧,分别为I封闭曝气型、II敞口曝气型、III敞填料曝气型装置。小试结果显示Klas指标III型比I型、II型分别高出179%、51%;Q。指标III~kLI型、II型分别高出167%、50%;标I
2、II~kLI型、II型分别高出176%、51%;III型装置功率因子E比I型、II型分别高出29%、50%。中试于太湖边沉藻池中采用模拟“黑水团,,的沉藻池水进行实验,中试$~III型多面球形填料装置可使水深1.8m,面积200m模拟黑臭水体边缘溶氧28h内恢复到1.69mg·L~,供氧效率达到26%,并对水中CODc、氨氮等的降解具有良好的作用。该设备初步证明可用于类似太湖黑臭团暴发时水体的应急治理领域。关键词:曝气;需氧;环境;富营养化;太湖DOI:10.3969~.issn.0438—1157.2014.02.049中图分类
3、号:X703.1文献标志码:A文章编号:0438—1157(2014)02—0718—06Developmentandperformanceofflowing—cyclereoxygenationdevicesf0rshallowlakeLIUHaihong,LIXianning,CAIJie(SchoolofEnergyEnvironment,SoutheastUniversity,Nanjing210096,Jiangsu,China)Abstract:Threekindsofflowing—cyclereoxygenatio
4、ndevicesforemergencyreoxygenationtodealwithoutbreakof“blackwatergroup”ofshallowlakeweredeveloped.Theprincipleofthedeviceswasaeroelasticenhancingcirculationflow.ThethreedevicesweretypeIofclosedaeration,typeIIofexposureaeration,typeIIIofexposurepackingaeration.Klasindic
5、atorsofsmalltestshowedthattypeII1washigherthantypeIandtypeIIby179%and51%respectively;Q。oftypeII1washigherthantypeIandtypeIIby167%and50%respectively;oftypeII1washigherthantypeIandtypeIIby176%and51%respectively;EoftypeII1washigherthantypeIandtypeIIby29%and50%respectivel
6、y.Inpilotscaletestdeadalgaewaterwasmixedwithlakewatertosimulatethe“blackwatergroup”inabluealgaesettlingpondofTaihulakewhosedepthwas1.8mandareawas200m.andinthistestthepilottypeIIImulti.facetedsphericalpackingdevicecouldrestoredissolvedoxygenfrom0mg·L-。to1.69mg·L_。in28h
7、,thedeviceoxygeneficiencywas26%,andthedegradationofwaterCODcr,ammonianitrogenwassatisfactory.ThedevicecouldbeusedforemergencymanagementofblackwatergroupoutbreaksuchasinTaihulake.Keywords:aeration;aerobic;environment;eutrophication;Taihulake2013.05—17收到初稿,2013.06.16收到修
8、改稿。Receiveddate:2013一O5-l7.联系人:李先宁。第一作者:刘海洪(1974一),男,博士研究生Correspondingauthor:LIXianning,lxn@seu.edu.cn讲师。Foundationitem:sup
此文档下载收益归作者所有