STUDY ON HYDROLYTIC ACIDIFICATION DURING THE TREATMENT OF CLOSELY RECYCLED WASTEWATER IN PAPER MILLS USING WASTE PAPER AS RAW MATERIAL

摘要：

Several experiments, in lab scale, were performed to study effect factors of hydrolytic-acidification (HA)during the treatment of closely recycled wastewater in wasted-paper making mills. Batch-flow tests suggested that it was suitable for acidification at pH 6～7, COD removal rate reached 50.6% at pH 7, the effluent COD was obviously decreased. COD removal ratio increased 10% with every 10℃ increase from 20 to 40℃. The effluent of HA became worse at 50℃. Continuous-flow tests indicated COD removal ratio became higher with longer HRT and VFA concentration increased firstly and then decreased with the HRt continuous increase. HRT at 8 hours can be defined as the dividing line of two phases.

关键词： Hydrolytic-acidification Wasted-paper making Wastewater Effect factors

作者: Ma Yongwen Wu Jiao Wan Jinquan Wang Pei Wang Yan

作者单位: College of Environment Science and Engineering College of Resources Science & Papermaking Engineering, South China University of Technology, Guangz

会议类型: 国际会议

会议名称: The 3rd International Symposium on Emerging Technology of Pulping and Papermaking(ISETPP)(第三届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 736-739

在线出版日期: 2006-11-08（万方平台首次上网日期，不代表论文的发表时间）