Treatment of agro based industrial wastewater in sequencing batch reactor: Performance evaluation and growth kinetics of aerobic biomass

2014 ◽  
Vol 146 ◽  
pp. 217-225 ◽  
Author(s):  
J.X. Lim ◽  
V.M. Vadivelu
Keyword(s):  
Performance Evaluation ◽  
Growth Kinetics ◽  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Reactor Performance ◽  
Kinetics Of

scholarly journals Treatment of Slaughter House Wastewater in a Sequencing Batch Reactor: Performance Evaluation and Biodegradation Kinetics

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Pradyut Kundu ◽  
Anupam Debsarkar ◽  
Somnath Mukherjee
Keyword(s):  
Performance Evaluation ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Ammonia Nitrogen ◽  
Blood Protein ◽  
Reactor Performance ◽  
Operating Cycle ◽  
Slaughterhouse Wastewater ◽  
Carbon And Nitrogen ◽  
Sequential Mode

Slaughterhouse wastewater contains diluted blood, protein, fat, and suspended solids, as a result the organic and nutrient concentration in this wastewater is vary high and the residues are partially solubilized, leading to a highly contaminating effect in riverbeds and other water bodies if the same is let off untreated. The performance of a laboratory-scale Sequencing Batch Reactor (SBR) has been investigated in aerobic-anoxic sequential mode for simultaneous removal of organic carbon and nitrogen from slaughterhouse wastewater. The reactor was operated under three different variations of aerobic-anoxic sequence, namely, (4+4), (5+3), and (3+5) hr. of total react period with two different sets of influent soluble COD (SCOD) and ammonia nitrogen (NH4+-N) level1000±50 mg/L, and90±10 mg/L,1000±50 mg/L and180±10 mg/L, respectively. It was observed that from 86 to 95% of SCOD removal is accomplished at the end of 8.0 hr of total react period. In case of (4+4) aerobic-anoxic operating cycle, a reasonable degree of nitrification 90.12 and 74.75% corresponding to initialNH4+-N value of 96.58 and 176.85 mg/L, respectively, were achieved. The biokinetic coefficients (k,Ks,Y,kd) were also determined for performance evaluation of SBR for scaling full-scale reactor in future operation.

scholarly journals Dynamic control of nutrient-removal from industrial wastewater in a sequencing batch reactor, using common and low-cost online sensors

2015 ◽  
Vol 73 (4) ◽  
pp. 740-745 ◽  
Author(s):  
Jan Dries
Keyword(s):  
Activated Sludge ◽  
Nutrient Removal ◽  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Low Cost ◽  
Dynamic Control ◽  
Oxygen Demand ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential

On-line control of the biological treatment process is an innovative tool to cope with variable concentrations of chemical oxygen demand and nutrients in industrial wastewater. In the present study we implemented a simple dynamic control strategy for nutrient-removal in a sequencing batch reactor (SBR) treating variable tank truck cleaning wastewater. The control system was based on derived signals from two low-cost and robust sensors that are very common in activated sludge plants, i.e. oxidation reduction potential (ORP) and dissolved oxygen. The amount of wastewater fed during anoxic filling phases, and the number of filling phases in the SBR cycle, were determined by the appearance of the ‘nitrate knee’ in the profile of the ORP. The phase length of the subsequent aerobic phases was controlled by the oxygen uptake rate measured online in the reactor. As a result, the sludge loading rate (F/M ratio), the volume exchange rate and the SBR cycle length adapted dynamically to the activity of the activated sludge and the actual characteristics of the wastewater, without affecting the final effluent quality.

Kinetics of psychrophilic anaerobic sequencing batch reactor treating flushed dairy manure

2013 ◽  
Vol 131 ◽  
pp. 6-12 ◽  
Author(s):  
Jingwei Ma ◽  
Liang Yu ◽  
Craig Frear ◽  
Quanbao Zhao ◽  
Xiujin Li ◽  
...  
Keyword(s):  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Dairy Manure ◽  
Anaerobic Sequencing Batch Reactor ◽  
Kinetics Of

Effect of heterotrophic growth on nitritation/anammox in a single sequencing batch reactor

2008 ◽  
Vol 58 (2) ◽  
pp. 277-284 ◽  
Author(s):  
Kai M. Udert ◽  
Elija Kind ◽  
Mieke Teunissen ◽  
Sarina Jenni ◽  
Tove A. Larsen
Keyword(s):  
Nitric Oxide ◽  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Heterotrophic Bacteria ◽  
Batch Reactor ◽  
Organic Substrate ◽  
Anammox Bacteria ◽  
Heterotrophic Growth ◽  
Reactor Performance ◽  
Heterotrophic Denitrification

The combination of nitritation and autotrophic denitrification (anammox) in a single sequencing batch reactor (SBR) is an energy efficient process for nitrogen removal from high-strength ammonia wastewaters. So far, the process has been successfully applied to digester supernatant. However, the process could also be suitable to treat source-separated urine, which has very high ammonium and organic substrate concentrations (up to 8,200 gN/m3 and 10,000 gCOD/m3). In this study, reactor performance was tested for digester supernatant and diluted source-separated urine. Ammonium concentrations in both solutions were similar (between 611 and 642 gN/m3), thus reactor performance could be directly compared. Differences were mainly due to higher activity of heterotrophic bacteria in urine. Nitrogen removal was slightly higher for source-separated urine, because heterotrophic bacteria denitrified the nitrate that was produced by anammox bacteria. In spite of higher heterotrophic growth with source-separated urine, calculated sludge concentrations at steady state were higher with digester supernatant due to accumulation of inert particulate organic matter from the influent. Although the sludge concentrations are less problematic for source-separated urine, process instabilities are more likely, because lower pH values are reached and heterotrophic denitrification can cause sudden increases of nitrite concentrations and/or nitric oxide. Both compounds inhibit aerobic ammonium oxidizing bacteria, heterotrophic bacteria and, most importantly, anammox bacteria. Nitrite and nitric oxide production by heterotrophic denitrification must be better understood to optimize nitritation/anammox for source-separated urine.

scholarly journals Settling properties of aerobic granular sludge (AGS) and aerobic granular sludge molasses (AGSM)

2018 ◽  
Vol 34 ◽  
pp. 02022
Author(s):  
Azlina Mat Saad ◽  
Farrah Aini Dahalan ◽  
Naimah Ibrahim ◽  
Sara Yasina Yusuf ◽  
Siti Aqlima Ahmad ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Sequencing Batch Reactor ◽  
Settling Velocity ◽  
Batch Reactor ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
X Ray ◽  
Conventional Activated Sludge ◽  
Physiological Structure ◽  
Granulation Technology

Aerobic granulation technology is applied to treat domestic and industrial wastewater. The Aerobic granular sludge (AGS) cultivated has strong properties that appears to be denser and compact in physiological structure compared to the conventional activated sludge. It offers rapid settling for solid:liquid separation in wastewater treatment. Aerobic granules were developed using sequencing batch reactor (SBR) with intermittent aerobic – anaerobic mode with 8 cycles in 24 hr. This study examined the settling velocity performance of cultivated aerobic granular sludge (AGS) and aerobic granular sludge molasses (AGSM). The elemental composition in both AGS and AGSM were determined using X-ray fluorescence (XRF). The results showed that AGSM has higher settling velocity 30.5 m/h compared to AGS.

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