Author/Authors :
Rosman، نويسنده , , Noor Hasyimah and Nor Anuar، نويسنده , , Aznah and Othman، نويسنده , , Inawati and Harun، نويسنده , , Hasnida and Sulong (@ Abdul Razak)، نويسنده , , Muhammad Zuhdi and Elias، نويسنده , , Siti Hanna and Mat Hassan، نويسنده , , Mohd Arif Hakimi and Chelliapan، نويسنده , , Shreesivadass and Ujang، نويسنده , , Zaini، نويسنده ,
Abstract :
Aerobic granular sludge (AGS) was successfully cultivated at 27 ± 1 °C and pH 7.0 ± 1 during the treatment of rubber wastewater using a sequential batch reactor system mode with complete cycle time of 3 h. Results showed aerobic granular sludge had an excellent settling ability and exhibited exceptional performance in the organics and nutrients removal from rubber wastewater. Regular, dense and fast settling granule (average diameter, 1.5 mm; settling velocity, 33 m h−1; and sludge volume index, 22.3 mL g−1) were developed in a single reactor. In addition, 96.5% COD removal efficiency was observed in the system at the end of the granulation period, while its ammonia and total nitrogen removal efficiencies were up to 94.7% and 89.4%, respectively. The study demonstrated the capabilities of AGS development in a single, high and slender column type-bioreactor for the treatment of rubber wastewater.
Keywords :
Nitrification , Sequential batch reactor , Rubber wastewater , Aerobic granular sludge , Granule characterization
