Integrated anaerobic-aerobic processes for treatment of high strength wastewater: Consolidated application, new trends, perspectives, and challenges

Perumal, Malliga; Sivasankari, Karikalacholan; Parimannan, Nirosha; Arichandran, Janci; Shanmuganathan, Keerthana; Ravi, Ragavi; Jayapandiyan, Sadhumathiya; Jayakumar, S.; Mohandas, Thilothi

doi:10.1016/b978-0-323-91180-1.00012-0

Cited by 2 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to conventional treatment systems, granular sludge systems have lower reactor volume requirements and lower sludge handling costs while also exhibiting high removal efficiencies of organic matter, nitrogen, and phosphorous. 6 This system is capable of recovering energy from wastewater through biogas production, while simultaneously achieving the removal of organic pollutants and meeting the nitrogen and phosphorus concentration requirements for effluent from the aerobic stage in accordance with surface water discharge standards. 7−9 However, there are some obstacles that hinder the widespread use of the hybrid UASB and SBR system, such as a long start-up period, low stability, and disintegration.…”

Section: ■ Introductionmentioning

confidence: 99%

“…A coupled system of up-flow anaerobic sludge blanket (UASB) and sequencing batch reactor (SBR) with aerobic granular sludge (AGS) has the potential to efficiently treat cattle wastewater. Compared to conventional treatment systems, granular sludge systems have lower reactor volume requirements and lower sludge handling costs while also exhibiting high removal efficiencies of organic matter, nitrogen, and phosphorous . This system is capable of recovering energy from wastewater through biogas production, while simultaneously achieving the removal of organic pollutants and meeting the nitrogen and phosphorus concentration requirements for effluent from the aerobic stage in accordance with surface water discharge standards. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Xu,

Huang,

et al. 2023

ACS EST Water

View full text Add to dashboard Cite

The present study introduces a coupled system comprising an upflow anaerobic sludge blanket (UASB) and a sequencing batch reactor (SBR) to treat intensive cattle farming wastewater. The results confirmed that the optimal conditions for UASB were an organic load rate of 9.98 kg-COD m–3·day–1, a C/N ratio of 22, and a hydraulic retention time (HRT) of 1.5 h. For the SBR reactor, the optimal conditions are a dissolved oxygen (DO) concentration of 6.08 mg L–1 and the S2 aeration mode. Under these optimal conditions, the study achieved anaerobic and aerobic sludge granules (0.25–0.5 and 0.5–0.75 mm) with excellent properties due to the cooperation of a functional microbial community, including Synergistetes, Thermotogae, Acidobacteria, Proteobacteria, Chloroflexi, and Hyd24–12 in UASB and Paracoccus, Proteobacteria, Chloroflexi, and Acinetobacter in SBR. This hybrid system contributed 94% of chemical oxygen demand (COD), 90% of NH4 +-N, 90% of TN, and 61% of TP. Additionally, it achieved 18% net energy recovery from the real cattle wastewater, indicating that the UASB–SBR-coupled system holds potential as an approach for treating and recovering energy from cattle wastewater.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Xu,

Huang,

et al. 2023

ACS EST Water

View full text Add to dashboard Cite

show abstract

“…These systems are composed of upper and lower parts; the upper part uses aerobic treatment, whereas the lower end uses anaerobic treatment [22]. There are several common characteristics of conventional anaerobicaerobic systems, including long hydraulic retention times (HRTs), low organic loading rates (OLRs), or large areas of land or digesters [23].…”

Section: Introductionmentioning

confidence: 99%

Application of Anaerobic-Aerobic Combined Bioreactor in Phosphorus Removal

Kavousi,

Borghei

2023

GaEE

View full text Add to dashboard Cite

A two-stage anaerobic-aerobic sequencing reactor system was developed in order to enhance the removal of biological phosphorus in the sequencing of combined reactors. Combining both aerobic and anaerobic designs in one reactor improved the efficiency and reduced the construction and operating costs. The combination of an upflow anaerobic fixed bed (UAFB) and a floating activated sludge aerobic bioreactor was designed with respective Kaldnes packing ratios of 90 and 30% for the anaerobic and aerobic sections. The controlled parameters were pH levels within a neutral range, a temperature of 37°C, mixed liquor suspended solids (MLSS) of 1220 and 1030 mg/L for the aerobic and anaerobic sections, respectively, and an attached growth that was equal of 743 and 1190 mg/L for the aerobic and anaerobic sections, respectively. Tests were conducted for three different initial phosphorus concentrations (12.8, 32.0, and 44.8 mg/L), two different volumes for each section, and four chemical oxygen demands (CODs) (500, 1000, 1200, and 1400 mg/L). The results demonstrated that, generally, the phosphorus removal in the anaerobic section fell significantly by increasing the inlet COD, and the maximum removal occurred at COD = 500 mg/L. More than 90% of the phosphorus was removed in the aerobic section at COD = 500 mg/L. In other words, the best performance of the reactor was when the ratio of the COD : N : P = 100 : 5 : 2, composition of phosphorus in industrial wastewater.

show abstract

Integrated anaerobic-aerobic processes for treatment of high strength wastewater: Consolidated application, new trends, perspectives, and challenges

Cited by 2 publications

References 24 publications

Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Efficient Treatment and Simultaneous Energy Recovery from Cattle Wastewater by the Micro-Aerated UASB and SBR Coupled System

Application of Anaerobic-Aerobic Combined Bioreactor in Phosphorus Removal

Contact Info

Product

Resources

About