Aerobic treatment of piggery wastewater with the sequencing batch reactor

An Anaerobic/Anoxic Sequencing Batch Reactor (A/A SBR) with separated batch biofilm nitrification was tested for nutrient removal against a five step Anaerobic-anoxic/Oxic SBR (A/O SBR). Piggery wastewater, particularly challenging for its low COD/N ratio, was used as feed. After feeding, the A/A SBR ran under anaerobic conditions for organic carbon sequestering and phosphorus removal. A settling phase was allowed to separate an ammonia-rich supernatant to be nitrified in a external biofilm reactor. The nitrified effluent returned to the A/A SBR where nitrates were removed, being used as final electron acceptors for luxury P-uptake and organic carbon oxidation. A/A SBR showed very good N and P removal capacities with excellent sludge settling properties. On the other hand, organic carbon removal efficiency with nitrate was lower than with oxygen. Batch biofilm nitrification was very effective, with very high nitrification rates. Presence of poly-P bacteria in the A/A SBR sludge was assessed through microscopic observation and from the high cellular poly-phosphate content.

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Aerobic Treatment of Poplar APMP Pulping Wastewater by Sequencing Batch Reactor (SBR)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.2526 ◽

2013 ◽

Vol 726-731 ◽

pp. 2526-2529

Author(s):

Na Li ◽

Mei Hong Niu ◽

Qing Wei Ping ◽

Jian Zhang ◽

Hai Qiang Shi

Keyword(s):

Sequencing Batch Reactor ◽

Batch Reactor ◽

Oxygen Demand ◽

Biological Oxygen Demand ◽

Aerobic Treatment ◽

Mechanical Pulp ◽

Removal Ratio ◽

Alkaline Peroxide ◽

Series Of Experiments ◽

Biological Methods

In this paper, the poplar Alkaline Peroxide Mechanical Pulp (APMP) pulping wastewater was treated by the SBR. The pulping wastewater was from the processes of washing, soaking and defibrination. The COD of the pulping wastewater was 5671 mg/L and the BOD was 1862 mg/L. The B/C (biological oxygen demand/chemical oxygen demand) ratio of the pulping wastewater was 0.32, which indicated that the wastewater was suitable to be treated by biological methods. SBR technology was used to treat the pulping wastewater. After a series of experiments, the best conditions for the pulping wastewater was achieved as follows: time 6hrs, original pH about 8. Under these conditions the removal ratio of COD can reach 81.4% and that of BOD can reach 91.5%;but the removal ratio of the TSS and the Chromaticity were low, the removal ratio of TSS only reach 31.8%.

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Strategies for dealing with piggery effluent in Australia: the sequencing batch reactor as a solution

Water Science & Technology ◽

10.2166/wst.2000.0020 ◽

2000 ◽

Vol 41 (1) ◽

pp. 123-126 ◽

Cited By ~ 16

Author(s):

B.D. Edgerton ◽

D. McNevin ◽

C.H. Wong ◽

P. Menoud ◽

J.P. Barford ◽

...

Keyword(s):

Sequencing Batch Reactor ◽

Batch Reactor ◽

Pilot Scale ◽

Land Application ◽

Swine Wastewater ◽

Piggery Wastewater ◽

Wastewater Disposal ◽

Odour Emissions ◽

Accepted Practice ◽

The Impact

Currently the accepted practice for swine wastewater disposal is lagoon stabilisation followed by land application. This disposal method can exacerbate odour emissions and contribute to soil contamination and eutrophication of waterways. Intensification of the pig industry has increased the impact of individual piggeries; this combined with tightening legislation is causing the pig industry in Australia to look at alternative treatment methods. A pilot scale sequencing batch reactor (SBR) was built to treat piggery wastewater. It achieved NH4+ and odour reductions of greater than 99% as well as 79% removal of COD and a 49% reduction of PO43−on a mass balance basis. The reactor experienced problems with foaming for the first 2 months of operation, which was controlled with vegetable oil until the foaming stopped. Struvite formation also occurred within the reactor and influent pipes but it was calculated that sufficient nutrients were removed to prevent precipitation down stream of the SBR.

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Biological phosphorus and nitrogen removal in a full scale sequencing batch reactor treating piggery wastewater

Water Science & Technology ◽

10.1016/s0273-1223(99)00385-6 ◽

1999 ◽

Vol 40 (1) ◽

Cited By ~ 20

Keyword(s):

Nitrogen Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Full Scale ◽

Piggery Wastewater ◽

Biological Phosphorus

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Biological phosphorus and nitrogen removal in a full scale sequencing batch reactor treating piggery wastewater

Water Science & Technology ◽

10.2166/wst.1999.0043 ◽

1999 ◽

Vol 40 (1) ◽

pp. 199-206 ◽

Cited By ~ 19

Author(s):

A. Tilche ◽

E. Bacilieri ◽

G. Bortone ◽

F. Malaspina ◽

S. Piccinini ◽

...

Keyword(s):

Sequencing Batch Reactor ◽

Batch Reactor ◽

Full Scale ◽

Process Modelling ◽

Nutrient Concentrations ◽

Nitrogen And Phosphorus ◽

Piggery Wastewater ◽

Research Activities ◽

Biological Phosphorus ◽

Nitrogen Phosphorus

Research activities carried out at ENEA during the last few years allowed the development of a Sequencing Batch Reactor (SBR) that is able to remove biologically organic waste, nitrogen and phosphorus and that was shown to be particularly suited to obtaining low effluent nutrient concentrations even starting from concentrated wastes. Research on optimisation of time cycles and on process modelling, allowed an advanced comprehension of reactor behaviour and the development of a process able to obtain more than 98% removal of nitrogen, phosphorus and COD, and therefore almost capable of matching effluent standards with a sole biological process. On the basis of laboratory results and process modelling, a full scale SBR plant has been designed and realised. This plant, in ten months of operation, is achieving even better results compared to the laboratory ones.

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Biological nutrient removal by a sequencing batch reactor (SBR) using an internal organic carbon source in digested piggery wastewater

Bioresource Technology ◽

10.1016/j.biortech.2004.03.002 ◽

2005 ◽

Vol 96 (1) ◽

pp. 7-14 ◽

Cited By ~ 124

Author(s):

D OBAJA

Keyword(s):

Carbon Source ◽

Organic Carbon ◽

Nutrient Removal ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Biological Nutrient Removal ◽

Piggery Wastewater ◽

Digested Piggery Wastewater ◽

Organic Carbon Source

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Anaerobically fermented spent mushroom substrates improve nitrogen removal and lead (II) adsorption

Water Science & Technology ◽

10.2166/wst.2021.080 ◽

2021 ◽

Vol 83 (7) ◽

pp. 1691-1702

Author(s):

Yunlong Yang ◽

Ling Li ◽

Shuqian Sun ◽

Ershu Lin ◽

Jibo Xiao

Keyword(s):

Nitrogen Removal ◽

Room Temperature ◽

Sequencing Batch Reactor ◽

High Throughput Sequencing ◽

Batch Reactor ◽

Fixed Bed ◽

Fixed Bed Reactor ◽

Carboxyl Group ◽

Thomas Model ◽

Piggery Wastewater

Abstract In this study, spent mushroom substrates (SMSs) were fermented anaerobically at room temperature to gain liquid SMSs (LSMSs) that were used to remove nitrogen from the piggery wastewater with a low C/N ratio in a sequencing batch reactor (SBR) and solid SMSs (SSMSs) that were utilized to adsorb Pb2+ from Pb2+-containing wastewater in a fixed-bed reactor (FBR). After LSMSs supplement, the removal efficiency of both total nitrogen (TN) and NH+4-N increased from around 50% to 60–80%. High-throughput sequencing results presented an obvious change in microbial diversity, and some functional microorganisms like Zoogloea and Hydrogenophaga predominated to promote nitrogen removal. Pb2+ did not emerge from the effluent until 240 min with the corresponding concentration being less than 3 mg/L when using 30-day SSMSs as adsorbents, and it was demonstrated to be appropriate to use the Thomas model to predict Pb2+ sorption on SSMSs. Although various functional groups played a role in binding ions, the carboxyl group was proved to contribute most to Pb2+ adsorption. These results certified that the anaerobically fermented SMSs are decidedly suitable for wastewater treatment.

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Coupled anaerobic–aerobic treatment of whey wastewater in a sequencing batch reactor: proof of concept

Water Science & Technology ◽

10.2166/wst.2007.323 ◽

2007 ◽

Vol 55 (10) ◽

pp. 201-208 ◽

Cited By ~ 2

Author(s):

J.C. Frigon ◽

T. Bruneau ◽

R. Moletta ◽

S.R. Guiot

Keyword(s):

Chemical Oxygen Demand ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Oxygen Demand ◽

Anaerobic Digester ◽

Aerobic Treatment ◽

Proof Of Concept ◽

Ph Shock ◽

Soluble Chemical Oxygen Demand ◽

Different Levels

A proof of concept was performed in order to verify if the coupling of anaerobic and aerobic conditions inside the same digester could efficiently treat a reconstituted whey wastewater at 21 °C. The sequencing batch reactor (SBR) cycles combined initial anaerobic phase and final aerobic phase with reduced aeration. A series of 24 h cycles in 0.5 L digesters, with four different levels of oxygenation (none, 54, 108 and 182 mgO2 per gram of chemical oxygen demand (COD)), showed residual soluble chemical oxygen demand (sCOD) of 683±46, 720±33, 581±45, 1,239±15 mg L−1, respectively. Acetate and hydrogen specific activities were maintained for the anaerobic digester, but decreased by 10–25% for the acetate and by 20–50% for the hydrogen, in the coupled digesters. The experiment was repeated using 48 h cycles with limited aeration during 6 or 16 hours at 54 and 108 mgO2gCOD−1initial, displaying residual sCOD of 177±43, 137±38, 104±22 and 112±9 mg L−1 for the anaerobic and the coupled digesters, respectively. The coupled digesters recovered after a pH shock with residual sCOD as low as 132 mg L−1 compared to 636 mg L−1 for the anaerobic digester. With regard to the obtained results, the feasibility of the anaerobic- aerobic coupling in SBR digesters for the treatment of whey wastewater was demonstrated.

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