A multi-component model for granular activated carbon filters combining biofilm and adsorption kinetics

Alonso, Vanessa Acevedo; Kaiser, Tobias; Babist, Roman; Fundneider, Thomas; Lackner, Susanne

doi:10.1016/j.watres.2021.117079

Cited by 13 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After VLPs were removed by the UF unit, an increase in VLP concentration could be observed following the GAC filtration unit, which might be explained by biological activity. Organic compounds are degraded by a biofilm forming on the activated carbon surface ( Acevedo Alonso et al., 2021 ). The biofilm growth in the GAC could thus explain the increase in phages in the water.…”

Section: Discussionmentioning

confidence: 99%

A relationship between phages and organic carbon in wastewater treatment plant effluents

et al. 2022

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

A relationship between phages and organic carbon in wastewater treatment plant effluents

et al. 2022

View full text Add to dashboard Cite

“…AC can also act as a carrier material for biofilm developed from wastewaters, which can biodegrade OMPs and NOM (Seo et al 1997 ; Sbardella et al 2018 ; Baresel et al 2019 ; Piai et al 2020 ; Alonso et al 2021 ) and provide an additional mechanism for their removal. Piai et al ( 2020 ) demonstrated that used GAC where biofilm had formed generally removed more OMPs.…”

Section: Activated Carbon (Ac) and Ion Exchange Resin Adsorbentsmentioning

confidence: 99%

Submerged membrane/adsorption hybrid process in water reclamation and concentrate management—a mini review

Loganathan

Kandasamy

Ratnaweera

et al. 2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

Clean water shortage is a major global problem due to escalating demand resulting from increasing human population growth and industrial activities, decreasing freshwater resources and persistent droughts. Recycling and reuse of wastewater by adopting efficient reclamation techniques can help solve this problem. However, wastewater contains a wide range of pollutants, which require removal before it may be reused. Adsorption and membrane processes are two successful treatments used to remove most of these pollutants. Their efficiency increases when these processes are integrated as observed, for example in a submerged membrane adsorption hybrid system (SMAHS). It uses coarse air bubbling/sparging to produce local shear which minimises reversible membrane fouling, improves performance and extends the life of the membrane. Additionally, the adsorbent acts as a buoyant media that produces an extra shearing effect on the membrane surface, reduces membrane resistance and increases flux. In addition, it adsorbs the organics that would otherwise deposit on and cause fouling of the membrane. The use of activated carbon (AC) adsorbent in SMAHS is very effective in removing most pollutants including natural organic matter (NOM) and organic micropollutants (OMPs) from wastewaters and membrane concentrate wastes, the latter being a serious problem in practical applications of the reverse osmosis process. However, certain NOM fractions and OMPs (i.e. hydrophilic and negatively charged ones) are not efficiently removed by AC. Other adsorbents need to be explored for their effective removal. Graphical abstract

show abstract

“…This fusion has emerged as a pivotal research focus in both current and prospective investigations within the realm of wastewater treatment. Biofilm, within the context of wastewater treatment, denotes a multifaceted and dynamic community of microorganisms that adhere to surfaces, forming a gelatinous, framework-like structure composed of bacteria, fungi, algae, and other microorganisms [26]. This biofilm formation stems from the colonization of microorganisms on submerged surfaces within wastewater, including treatment tank walls, pipelines, and other structural components [27].…”

Section: Introductionmentioning

confidence: 99%

Biofilm-Enhanced Natural Zeolite Material in Purification Performance for Slaughterhouse Wastewater

Mkilima,

Meiramkulova,

Kydyrbekova

et al. 2023

Water

View full text Add to dashboard Cite

This study focuses on evaluating the efficacy of biofilm-enhanced natural zeolite for the purification of slaughterhouse wastewater. The investigation encompasses four distinct treatment methods: employing natural zeolite without biofilm, integrating biofilm into 1–2 mm particle size natural zeolite, enhancing biofilm in less than 4 mm particle size natural zeolite, and introducing biofilm in less than 8 mm particle size natural zeolite. The outcomes underscore the substantial improvement brought about by biofilm incorporation. For instance, within the natural zeolite treatment system without biofilm, the final effluent retained 28 NTU of turbidity. In contrast, utilizing the <8 mm particle size with biofilm resulted in 3.2 NTU of turbidity in the treated effluent, 2.45 NTU for the <4 mm particle size with biofilm, and 1.02 NTU for the 1–2 mm particle size zeolite system with biofilm. Notably, the achieved removal rates were significant, reaching 79.88% for natural zeolite without biofilm, 97.69% for the <8 mm particle size with biofilm, 99.27% for the <4 mm particle size with biofilm, and 98.24% for the 1–2 mm particle size zeolite system with biofilm. It is noteworthy that the removal efficiencies varied from 50 to 100% for wastewater samples subjected to the treatment system without biofilm, 65.7–100% with the <8 mm particle size biofilm, 71.4–100% with the <4 mm particle size biofilm, and 71.7–100% with the 1–2 mm particle size zeolite system biofilm. These findings collectively emphasize the pivotal role of biofilm in enhancing treatment outcomes, presenting a promising avenue for optimizing wastewater treatment efficiency.

show abstract

A multi-component model for granular activated carbon filters combining biofilm and adsorption kinetics

Cited by 13 publications

References 22 publications

A relationship between phages and organic carbon in wastewater treatment plant effluents

A relationship between phages and organic carbon in wastewater treatment plant effluents

Submerged membrane/adsorption hybrid process in water reclamation and concentrate management—a mini review

Biofilm-Enhanced Natural Zeolite Material in Purification Performance for Slaughterhouse Wastewater

Contact Info

Product

Resources

About