两级两相厌氧工艺处理高浓度甲醇废水_马文成

两级两相厌氧工艺处理高浓度甲醇废水马文成,韩洪军,王　伟,钟　丹(哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090)摘要:采用两级两相厌氧工艺处理高浓度甲醇废水。一、二级厌氧反应器均选用外循环(EC)厌氧反应器,结果表明以颗粒污泥作为两级厌氧系统的接种污泥,两级两相厌氧系统在50天内完成快速启动,水解酸化反应器的出水中的挥发性脂肪酸值(VFA)最高为14.6mmol/L,废水中的甲醇以直接还原成甲烷为主要途径。两级厌氧系统总的COD去除率可达90%以上。关键词:甲醇废水;两级两相厌氧工艺;处理中图分类号:X703.1　文献标识码:A　文章编号:0253-4320(2007)12-0032-04Treatmentofhigh-strengthmethanolwastewaterwithtwo-stageandtwo-phaseanaerobicprocessMAWen-cheng,HANHong-jun,WANGWei,ZHONGDan(DepartmentofCivilandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Thetwo-stageandtwo-phaseanaerobicprocess(TSTP)seededwithgranularsludgeisusedtotreathigh-strengthmethanolwastewater.Theunitoftwo-stagesystemisanexternalcirculationanaerobicreactor(EC).TestsshowthatTSTPprocesscanquicklystartupwithin50days,andthemaximumVFAconcentrationofhydrolyticacidificationreactoreffluentcanbe14.6mmol/L.Inthebiologicalprocessofmethanolconvertedintomethane,thedirectproductionofmethanefrommethanolispredominant.ThetotalCODremovalrateofthetwo-stageanaer