_PLC在D-A_2O组合技术处理橡胶废水中的应用

PLC在D－A2O组合技术处理橡胶废水中的应用周志明1，路瑞2，叶长兵3，岳树刚1，李嘉3，李云龙1(1．云南滇清环境科技有限公司，云南玉溪653100;2．环境保护部环境规划院水环境规划部，北京100012;3．玉溪师范学院化学生物与环境学院，云南玉溪653100)摘要:为适应水量波动和实现节能的目的，将上海正航CN－200型系列可编程控制器(PLC)引入处理橡胶废水的D－A2O组合工艺(最大设计处理能力为1200m3/d)。阐述了该处理系统的多种节能运行模式，并结合PLC系统软件自身的特点，设计了一套具有选择性的橡胶废水处理自动化节能运行系统。结果表明，该处理系统可根据实际水量在IDEA工艺、D－A2O(A/B侧交替运行)工艺和A2O(A/B侧同时运行)工艺中任意切换。同时，有效解决了由于污水处理系统长时间处于小水量情况下导致过多设备参与运行而造成设备利用率低、能耗浪费等问题，在确保水质达标的前提下实现了污水处理系统的自动化节能运行。关键词:PLC;IDEA工艺;D－A2O工艺;A2O工艺;橡胶废水中图分类号:TU992文献标识码:C文章编号:1000－4602(2018)09－0075－05ApplicationofPLCControlinTreatmentofRubberWastewaterbyD-A2OCombinationTechnologyZHOUZhi-ming1，LURui2，YEChang-bing3，YUEShu-gang1，LIJia3，LIYun-long1(1．YunnanDianqingEnvironmentalTechnologyCo．Ltd．，Yuxi653100，China;2．DepartmentofWaterEnvironmentalPlanning，ChineseAcademyforEnvironmentalPlanning，Beijing100012，China;3．SchoolofChemicalBiologyandEnvironment，YuxiNormalUniversity，Yuxi653100，China)Abstract:TheapplicationofShanghaiZhenghangCN-200seriesprogrammablelogicalcontroller(PLC)inthetreatmentofrubberwastewaterbyD-A2Ocombinationtechnology(themaximumdesigntreatmentcapacitywas1200m3/d)wasintroduced．Softwaresystemwasdevelopedthroughexplainingavarietyofenergy-savingoperationmodesofthesystemandcombiningwiththecharacteristicsofthePLCsystem，andasetofautomaticenergy-savingoperationsystemwithselectivefunctionforthetreatmentofrubberwastewaterwasdesigned．TheresultsindicatedthatthetreatmentsystemcouldbearbitrarilyswitchedamongtheIDEAprocess，theD-A2O(A/Bsidealternativeoperation)processandtheA2O(A/Bsidesimultaneousoperation)processaccordingtotheactualwastewateramount．Meanwhile，lowequipmentutilizationrate，energywasteandotherproblemscausedbytoomanydevicesoperatedinthesystem，whenthewastewatertreatmentsystemwasundersmallamountofwastewaterforalongtime，werecreativelysolved，andautomaticenergy-savingofthewastewatertreatmentsystemwasrealizedonthepremiseofmeetingwaterqualitystandard．Keywords:programmablelogicalcontroller(PLC);IDEAprocess;D-A2Oprocess;A2Oprocess;rubberwastewater·57·第34卷第9期2018年5月中国给水排