厌氧内循环工艺在废纸造纸废水处理中的应用_蒋健翔

StudyontheapplicationofICprocesstothetreatmentofregeneratedpapermakingwastewaterJiangJianxiang，CiXinbo，WanXiankai，YeKuanwei，ShiHuixiang（InstituteofEnvironmentalEngineering，ZhejiangUniversity，Hangzhou310027，China）厌氧内循环工艺在废纸造纸废水处理中的应用蒋健翔，次新波，万先凯，叶宽伟，史惠祥（浙江大学环境工程研究所，浙江杭州310027）［摘要］采用厌氧内循环工艺（IC工艺）对废纸造纸废水处理工程进行改造，并研究了其1年内的工程运行情况。结果表明：IC工艺能较好适应进水水质水量的波动，处理效果好且运行稳定，COD去除率达到80%，沼气产气率约为0.38m3/kg。所产沼气发电量约为8000kW·h/d，实现了整个废水处理系统的收支平衡。进水Ca2+浓度严重超标，IC系统运行10个月后出现了污泥钙化问题。［关键词］厌氧内循环反应器；废纸造纸废水；沼气发电［中图分类号］X703.1［文献标识码］B［文章编号］1005-829X（2010）11-0089-04Abstract：Internalcirculatinganaerobicreactor（ICprocess）hasbeenusedforimprovingthewastewatertreatmentofregeneratedpapermakingmills，andtheone-yearrunningstatusoftheprocesshasbeenstudied.TheresultsshowthatICprocesscouldadapttothefluctuationofinfluentqualityandquantitybetter，andbothofthetreatmenteffectandstabilityweregood.ItsremovalrateofCODintheanaerobicsystemwasasupto80%，andthemarshgaspro-ducingratewasabout0.38m3/kg.Therefore，theelectricenergygeneratedfromthe