改良型氧化沟工艺处理碱法草浆中段废水  

An improved oxidation ditch process for the treatment of bleaching/washing effluent in an alkaline straw pulping plant

作　　者：王猛[1] 张安龙[1] 

机构地区：[1]陕西科技大学造纸工程学院,西安710021

出　　处：《中华纸业》2008年第2期73-75,共3页China Pulp & Paper Industry

摘　　要：介绍了采用FAS—Jet射流曝气系统的改良型氧化沟系统处理碱法草浆中段废水的设计及启动调试。改良型氧化沟采用全好氧曝气,沟中不存在缺氧区和厌氧区;氧化沟兼有完全混流式和推流式的独特水力特征,抗冲击能力强;FAS-Jet系统氧转移效率高、污泥沉淀性能好。运行结果表明,此工艺及参数选择合理、运转稳定,出水水质可达到造纸工业水污染物排放的国家标准。The paper introduces the design and start-up commissioning of an improved oxidation ditch system with the FAS-Jet aeration system for the treatment of bleaching/washing effluent in an alkaline straw pulping plant, The operation results show that the process and its parameter selection were rational, the operation was stable and the quality of outlet water reached the nationaL standard of water pol lutant discharge for pulp and paper industry.

关 键 词：改良型氧化沟 供气式 射流曝气 中段废水 碱法草浆 

分 类 号：X793[环境科学与工程—环境工程] TS749.2[轻工技术与工程—制浆造纸工程]