Study on pH Shock Resistance of the Magnetic Micro-Aerobic Activated Sludge System

Abstract:

the effect of pH shock on the magnetic micro-aerobic activated sludge system used to deal with low load glucose wastewater was studied. After pH shocking under the condition of pH=6.0 and 9.0 for 15 days, COD_Cr removal efficiency of the reactor with magnetic powder was higher than that of the reactor without magnetic powder, and remained above 80% in the 5 days recovery experiment at pH=7.5, while about 50% of the reactor without magnetic powder. SVI in the reactor with magnetic powder was lower than that of the reactor without magnetic powder after pH shocking, and after the 5 days' recovery experiments, SVI of the sludge with magnetic powder could recovered to the original value, but the indicators of the sludge without magnetic powder could not recovered to the original value.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1441-1444
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1441
• Online since: September 2013
• Authors: Hui Xia Lan, Rui Chen, Ping Ma, Heng Zhang, Shan Hong Lan
• Keywords: Magnetic, Magnetic Powder, Micro-Aerobic Activated Sludge, pH Shock

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