Rapid Method of Aerobic Granular Sludge Bioreactor Start-up for Domestic Wastewater Treatment

2021 ◽  
Author(s):  
Tanavarotai Karn ◽  
Aznah Nor Anuar
Keyword(s):  
Wastewater Treatment ◽  
Rapid Method ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Start Up ◽  
Domestic Wastewater Treatment

Aerobic granular sludge technology and nitrogen removal for domestic wastewater treatment

2015 ◽  
Vol 71 (7) ◽  
pp. 1040-1046 ◽  
Author(s):  
J. Wagner ◽  
L. B. Guimarães ◽  
T. R. V. Akaboci ◽  
R. H. R. Costa
Keyword(s):  
Nitrogen Removal ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Ammonium Assimilation ◽  
Aerobic Granular Sludge ◽  
Granule Formation ◽  
Granulation Process ◽  
Start Up ◽  
Domestic Wastewater Treatment ◽  
Average Size

This study evaluated aerobic granulation and nitrogen removal via assimilation, nitrification, and denitrification of a system fed with real domestic wastewater. The granulation process was complete after 160 days of operation. The mature granules had an almost spherical structure, an average size of 473.0 μm, and a good settling ability (SVI30 of 75.6 mL g−1). Ammonium assimilation for cell growth varied between 3.5 and 64.6% during reactor start-up. After granule formation, assimilation accounted for less than 5% and nitrogen was mainly removed by partial nitrification up to nitrite, followed by denitrification via nitrite. Average efficiencies of 86.6% for nitrification, 59.5% for denitrification, and 60.5% for total nitrogen were obtained in this period. The assimilation ability of the mature granules grown on domestic wastewater was lower than the commonly reported results obtained for synthetic granules.

scholarly journals Performance of Aerobic Granular Sludge for Domestic Wastewater Treatment

2019 ◽  
Vol 8 (12) ◽  
pp. 3851-3854
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Batch Reactor ◽  
Biomass Concentration ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Volume Index ◽  
Aerobic Granular Sludge ◽  
Domestic Wastewater Treatment ◽  
Low Strength

Aerobic granular sludge can be used to treat various types of wastewater, such as industrial, municipal and domestic wastewater. This study investigated the treatment of low-strength domestic wastewater while simultaneously developed aerobic granular sludge in a sequencing batch reactor (SBR). Activated sludge was used as the seeding for granulation. The results indicated good COD and ammoniacal nitrogen removal at 72% and 73%, respectively. Aerobic granular sludge was successfully developed with low sludge volume index (SVI30) of 29 mL/g, which demonstrated an excellent settling property of aerobic granular sludge. Biomass concentration increased significantly compared to the seed sludge, indicating high biomass density in the SBR system. Settling velocity of aerobic granular sludge was significantly higher compared to the conventional activated sludge. This study showed the feasibility of aerobic granular sludge to be developed using low-strength domestic wastewater. Moreover, this study demonstrated the long-term application of aerobic granular sludge in domestic wastewater treatment.

scholarly journals ANALISIS KINERJA INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK STUDI KASUS PT. UNITED CAN Co. Ltd.

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Rudi Nugroho
Keyword(s):  
Wastewater Treatment ◽  
Domestic Wastewater ◽  
Start Up ◽  
Domestic Wastewater Treatment

Nowadays, the domestic wastewater have become a big problem in Indonesia especially in Jakarta. The governor of DKI Jakarta has established new regulation of domestic wastewater standard which can be discharge to the environment. The regulation namely Pergub 122 tahun 2005. To comply the regullation, PT. United Can Co. Ltd. has already built a domestic wastewater treatment using anaerobic-aerobic biofilter. The wastewater treatment has 130m3/day of treatment capacities. During the start-up periods till 3 months running, the compossition of influent and efluent were analysed weekly. The results show that the concentration of parameter of COD, BOD, TSS, Amonia, pH and MBAS in the effluent have bellow the limit noted in the Pergub 122 th 2005.  Keywords:  Domestic Wastewater, Biofilter, Anaerobic, Aerobic

Advance Aerobic Granular Sludge Development for the Treatment of Low Strength Wastewater

2021 ◽  
Author(s):  
Hazlami Fikri Basri ◽  
Aznah Nor Anuar ◽  
Mohd Hakim Ab Halim ◽  
Muhammad Ali Yuzir
Keyword(s):  
Batch Reactor ◽  
Physical Stability ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Pilot Scale ◽  
Phosphate Removal ◽  
Aerobic Granular Sludge ◽  
Start Up ◽  
Low Strength ◽  
Advanced Development

Abstract The aim of the present study was to assess the start-up performance of aerobic granular sludge for the treatment of low-strength (COD <200 mg L−1) domestic wastewater by the application of a diatomite carrier. The feasibility was evaluated in terms of the start-up period and stability of the aerobic granules as well as COD and phosphate removal efficiencies. A single pilot-scale Sequencing Batch Reactor (SBR) was used and operated separately for the control granulation and granulation with diatomite. Complete granulation (granulation rate ≥ 90%) was achieved within 20 days for the case of diatomite with an average influent COD concentration of 184 mg L−1. In comparison, control granulation required 85 days to accomplish the same feat with a higher average influent COD concentration (253 mg L−1). The presence of diatomite solidifies the core of the granules and enhances physical stability. Diatomite granules recorded the strength and SVI of 18 IC and 53 mL/g SS which clearly superior to control granulation (19.3 IC, 81 mL/g SS). Quick start-up and achievement of stable granules lead to an efficient COD (89%) and phosphate removal (74%) in 50 days of bioreactor operation. Interestingly, this study revealed that diatomite has some special mechanism in enhancing the removal of both COD and phosphate. The result of this research implies that the advanced development of granular sludge by using diatomite can provide a promising low-strength wastewater treatment.

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