STUDY ON ADVANCED TREATMENT OF HIGH YIELD PULPING(APMP)EFFLUENT
High yield pulping technology consumes less energy in refining, and causes less wastewater and less pollution, additionally the yield rate is higher and pulp strength is better. However, the wastewater results from this method have high density and colority, the discharged wastewater still contains various toxic chemical contaminant, this pollution problem isn’t allowed to ignore. To solve the problems of the papermaking wastewater new discharge standards and reuse, according to features of poplar APMP pulping effluent, A coagulation-anaerobic baffled reactor(ABR)-sequencing batch reactor(SBR) -biological aerated filter(BAF) process used for the effluent advanced treatment was studied. The result shows that about 90％ suspended solids in the original wastewater are removed by coagulating sedimentation pretreatment, be lessening by coagulating sedimentation pretreatment, be lessening contaminating load of follow-up handle. The B/C of wastewater is raised 0.27 to 0.38 by ABR anaerobic reaction, the biodegradability of wastewater is great improved. Resolvable contaminant in the wastewater is removed by continuous aerobic SBR, the out water of the second sedimentation basin is going to advanced treatment by BAF, the average CODCr and colority of the treated water respectively are 78.3mg/L and 41times, the quality of the final water not only can completely satisfies the new discharge standard（GB3544—2008）, but also the recycle requirements. The handling system has many merits with simple technological process, high efficiency, stability reliably running, and low cost.
High yield pulping effluent Advanced treatment Coagulating sedimentation Biological
Sen Wang Xinping Li Anlong Zhang
School of Papermaking Engineering,Shaanxi University of Science and Technology,Xian, 710021, China School of Papermaking Engineering, Shaanxi University of Science and Technology,Xian, 710021, China
国际会议
International Mechanical Pulping Conference 2011(2011国际机械浆学术会议)
西安
英文
513-516
2011-06-26（万方平台首次上网日期，不代表论文的发表时间）