Long term experiences in a pilot-scale high-rate activated sludge system with lamella clarifier: Effluent quality and carbon capture

Gülhan, Hazal; Hamidi, Muhammed Nimet; Abdelrahman, Amr Mustafa; Fakıoğlu, Malhun; Mese, Beyda; Yoruk, Mustafa; Kurt, Ece Sagir; Koyuncu, İsmail; Güven, Hüseyin; Özgün, Hale; Erşahin, Mustafa Evren; Öztürk, İzzet

doi:10.1016/j.jwpe.2022.103138

Cited by 7 publications

(1 citation statement)

References 39 publications

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“…This high nutrient capture cannot be assigned solely to the assimilation of growing heterotrophic biomass because oxygen uptake corresponds only to approximately 3% oxidation of the influent COD calculated from airflow measurements. Therefore, the observed nitrogen capture points on additional nitrogen sinks besides heterotrophic biomass protein, potentially EPS protein (Gulhan et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Converting rectangular and circular primary tanks into the AAA biologically enhanced clarification settler

Wett,

Aichinger,

Murthy

2024

Water Environment Research

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The frequent design challenge for existing water resource recovery facilities targets the accommodation of an ~50% load increase within the existing infrastructure and footprint. Off‐loading this organic load at the top‐end of the plant and redirection toward the digesters has proven the most efficient way of process intensification. The Triple A settler is an “activated primary treatment,” stands for alternating activated adsorption, and can be retrofitted into existing rectangular or circular (mostly) primary tanks at a hydraulic retention time of 2 h and a sludge retention time of about 0.5 days. Several technology implementations demonstrate flexible designs adjusting to existing tank geometries and depths of 2.5 to 5.0 m. Different implementation scales from dry‐weather flow rates ranging from 0.1 to 10 mgd show generic applicability of the functional principles at any scale: Biosorption, bioflocculation, and assimilation provide the key added value in pretreatment efficiencies of ~60/25/33 in %COD/%N/%P removal compared with application of pure physics in primary settling with typical 33%/9%/11% removal, respectively.Practitioners Points Triple A is a hybrid form of A‐stage and contact stabilizer for advanced primary treatment. Besides COD and TSS, also, P and N can be removed via Triple A. Triple A can be retrofitted in existing rectangular or circular tanks. This high‐rate process does not worsen the conditions for enhanced biological phosphorus removal. Energy efficiency, capacity increase, and operational benefits are the main goals of Triple A.

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Section: Resultsmentioning

confidence: 99%

Converting rectangular and circular primary tanks into the AAA biologically enhanced clarification settler

Wett,

Aichinger,

Murthy

2024

Water Environment Research

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Review on wastewater treatment for man-made cellulosic fibre industries: recent advancement and future prospects

Mondal,

Ramachandran,

et al. 2023

Cellulose

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A review of iron use and recycling in municipal wastewater treatment plants and a novel applicable integrated process

et al. 2023

Bioresource Technology

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Long term experiences in a pilot-scale high-rate activated sludge system with lamella clarifier: Effluent quality and carbon capture

Cited by 7 publications

References 39 publications

Converting rectangular and circular primary tanks into the AAA biologically enhanced clarification settler

Converting rectangular and circular primary tanks into the AAA biologically enhanced clarification settler

Review on wastewater treatment for man-made cellulosic fibre industries: recent advancement and future prospects

A review of iron use and recycling in municipal wastewater treatment plants and a novel applicable integrated process

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