Study on the Performance of Modified UASB Process Treating Sewage

Abstract:

Added the anaerobic contact oxidation fill area on traditional UASB reactor,the imitation domestic sewage was treated by this modified UASB process on this paper. The COD removal was studied by regulated temperature,hydraulic retention time(HRT) and the influent concentration; The stability of this reactor was studied by regulated pH value of inflow and effluent.The results show that,when regulated the inflow pH value about 7.5,and effluent pH by maintainned about 6.8-7.2,so ensure that the reactor operation was stable;when T=45±5°C,the COD removal can reach 92.8%; when the HRT was 10h,the COD removal is 76.8%~92%;when the inflow concentration were 500mg/L,750mg/L,1000mg/L,the average COD removal are 65.68%, 75.58% and 83.05%.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 2174-2178
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.2174
• Online since: December 2012
• Authors: Su Juan Zhang, Nai Rui Liu, Cong Xiao Zhang
• Keywords: Imitation Domestic Sewage, Modified UASB Process, Stability

References

[1] Wanchun Tan,UASB Process and projects[M].Beijing:chemical industry press,2009.In Chinese

[2] Jie Wang,Hongwei Zhang.The impact of the temperature for the UASB reactor treating low concentration organic wastewater[J].Tianjin Polytechnic University learned journal,2007,26(1):33-37.In Chinese

[3] Fang Ma,Yujie Feng,Nanqi Ren.Environmental Biotechnology[M].chemical industry press,2003:88-90.In Chinese

[4] Qingling Zhao . Yu Liu . New technology for wastewater treatment and resource. China building industry press. 2006: 68.

[5] Xin Li.The optimum design of the UASB reactor and the test of the treatment of the low concentration organic wastewater[D].xi'an:Northwesten Polytechnical University,2012.In Chinese

[6] Jian Chen.Environment Biotechnology[M].Bei Jing:China Light Industry Press,1999:169.In Chinese

[7] Jian Chen,He Liu.Environmental Microbiology experimental techniques[M].chmical industry press,2008.146-147.In Chinese

[8] Song Ben Ming Ren,Xiao Chu Liang Ping.Used the UASB method to study the impact of the pH on the methane fermentation for the object of the protein-containing wastewater[J].sewage treatment information reported,1999,5(90):36-40.

[9] Dandan Wang.The study of the UASB reactor treating domestic wastewater[D].Qing Dao:Qingdao Technological University,2009.In Chinese

[10] ABDULLAH YASAR,NASIR AHMAD.Sludge granulation and efficiency of phase separator in UASB reactor trenting combined industria effluent[J].Journal of Environmental Sciences ,2007,(19)553-558.

DOI: 10.1016/s1001-0742(07)60092-8