ZHANG Yong,HU Qun-lin,XU Guang-song,et al.Effect of Pumice on Start-up of Upflow Anaerobic Sludge Blanket[J].China Water & Wastewater,2021,37(21 21):75-81.
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Effect of Pumice on Start-up of Upflow Anaerobic Sludge Blanket

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 21 21 Page: 75-81 Column: Date of publication: 2021-11-01
Author(s):
ZHANG Yong1; 2; HU Qun-lin1; 3; XU Guang-song1; 2; ZHAN Yu1; 2; WANG Hui1; 2
(1. School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; 2. Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Resuse, Hefei 230601, China; 3.Taihu County Housing and Urban-Rural Development Bureau, Anqing 246000, China)
Keywords:
pumice; UASB; anaerobic granular sludge; gas yield performance
Abstract:
Adding carrier material to an anaerobic system is an effective way to accelerate the start-up of the reactor. In this work, pumice was added into an upflow anaerobic sludge blanket (UASB), and the effect of pumice on the start-up of the reactor for the treatment of leachate from a waste incineration power plant was investigated. Compared with the reactor without pumice, the reactor with pumice was started within 24 days, the COD removal efficiency remained above 90%, and the startup time was shortened by 10 days. The gas yield performance of the reactor was significantly improved, and the average daily gas and methane yields were increased by 9.38% and 9.81%, respectively. At the same time, the ratio of VSS/TSS and the average content of protein increased by 6.7% and 21.4%, respectively, resulting in the portion of the sludge with particle size greater than 0.50 mm to the total sludge was 22.56%, which was much higher than that of the control group (7.39%). Therefore, the sludge was successfully granulated within 15 days.
Last Update: 2021-11-01