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- W595960708 abstract "Aerobic granular sludge is a new and advanced biological wastewater treatment technology typically applied in sequencing batch reactor (SBR) systems. Compared to conventional activated sludge systems, aerobic granular sludge has good biomass retention, good settling properties and good simultaneous COD, and biological nutrient removal. This thesis mainly investigated nutrient removal from synthetic wastewater by aerobic granular sludge in lab-scale SBR. The characteristics of aerobic granules at different COD: N: P ratios from 100: 10.47: 0.8 to 100: 2.62: 0.8 and superficial up flow air velocity of 1.47 and 0.82cm/s while organic loading rate (OLR) was 1.5 kg/(m3.d) were investigated. The pH, reduction-oxidation potential and Dissolved Oxygen (DO) conditions were also analyzed during operation. The analysis results showed aerobic granular sludge with high removal degree of COD and nutrients. The conversion rate of COD was approximately 90%, and for nitrogen it was 85-95%. At the end of operation period, phosphorus removal reached finally 70-90%. Aerobic granules developed with high N/COD ratio had more compact, stronger structure, smaller size and better settleability. Low superficial up flow air velocity led to larger size and poorer properties of aerobic granules. Under alternating anaerobic-aerobic condition, nitrification and denitrification was achieved by aerobic granules in SBR, especially in the reactor with higher nitrogen load. Enhanced biological phosphorus removal (EBPR) also occurred in the alternating anaerobic-aerobic SBR system." @default.
- W595960708 created "2016-06-24" @default.
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- W595960708 date "2011-01-01" @default.
- W595960708 modified "2023-09-24" @default.
- W595960708 title "Nutrient removal from wastewater by aerobic sludge" @default.
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