Effects of water quality changes on performance of biological activated carbon (BAC) filtration

Ross, Petra; Aa, Lur'e; Dijk, Tim van; Rietveld, L.C.

doi:10.1016/j.seppur.2018.11.072

Cited by 22 publications

(19 citation statements)

References 34 publications

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“…Uhl and Gimbel (2000) described that for the biological removal of ammonia, the deposit of bacterial cells from the influent was necessary to maintain a solid biofilm. However for Weesperkarspel it was shown that the feed in bacterial cells to the BAC filters was not necessary to obtain a sufficient biodegradation efficiency (Ross et al, 2019), hence no on-line measurement of ATP or flowcytometry was required. Besides biodegradation taking place, adsorption of NOM and toxic, colour, taste and odour compounds takes place.…”

Section: Drinking Watermentioning

confidence: 99%

“…Engineering and Science As indicated in the required water quality parameters section, the activity of the biomass present on the carbon grains determines the biodegradation efficiency. Ross et al (2019) showed that a change in feed water quality does not necessarily result in a change in effluent quality, hence there is no direct need for close monitoring of the filters.…”

Section: Drinking Watermentioning

confidence: 99%

“…AOC is subsequently biodegraded in BAC filtration step and enhances the microbiological activity in the filters. Ross et al (2019) showed that a sudden change in AOC concentration does not result in a direct deterioration of the effluent quality of the BAC filters. Therefore, a continuous monitoring of the AOC concentration in the effluent of the BAC filter is not required.…”

Section: Aoc Bromate and Bromidementioning

confidence: 99%

“…The determination of viable bacterial cells has developed in the last couple of years from a laborious intensive measurement using microscopy, to rapid determination in the lab using flow cytometry to customizing the flow cytometry equipment for on-line applications (Besmer et al, 2014;Besmer et al, 2017). Ross et al (2019) showed that the effect of viable bacterial cells in the influent of the BAC filters is limited in respect to the performance of the BAC filters, therefore discarding the need for on-line monitoring. The costs of both lab and on-line measurements are still high but expected to reduce in future as per the innovation taking place to enhance rapid detection.…”

Section: Viable Bacterial Cellsmentioning

confidence: 99%

“…When evaluating the ozonation and BAC filtration step as an integrated system, it is not required to monitor the AOC in the effluent of the ozonation due to the robustness of the BAC filtration step (Ross et al, 2019). The DO concentration in the influent of the BAC filter will always be sufficient as a result of the preceding ozonation step, therefore there is no need to continuously monitor this concentration in the influent.…”

Section: Determination Of Integrated Monitoring Strategy Of Treatmentmentioning

confidence: 99%

See 4 more Smart Citations

Design methodology to determine water quality monitoring strategy of surface water treatment plants

Ross

Schagen

Rietveld

2019

Preprint

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Abstract. Primary goal of a drinking water company is to produce safe drinking water fulfilling the quality standards defined by national and international guidelines. To ensure the produced drinking water meets the quality standards, sampling of the drinking water is carried out on a regular (almost daily) basis. It is the dilemma that the operator wishes to have a high probability of detecting a bias while minimizing his measuring effort. In this paper a seven step design methodology is described on how to come to an optimized water quality monitoring scheme. It was shown that the existing on-line monitoring program of a WTP could be optimized. Besides using soft-sensors as surrogate sensors for parameters currently not available on-line, they can also provide a cost effective alternative when used to determine multiple parameters required through one single instrument.

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Section: Drinking Watermentioning

confidence: 99%

Section: Drinking Watermentioning

confidence: 99%

Section: Aoc Bromate and Bromidementioning

confidence: 99%

Section: Viable Bacterial Cellsmentioning

confidence: 99%

Section: Determination Of Integrated Monitoring Strategy Of Treatmentmentioning

confidence: 99%

See 3 more Smart Citations

Design methodology to determine water quality monitoring strategy of surface water treatment plants

Ross

Schagen

Rietveld

2019

Preprint

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Biofiltration for treatment of recent emerging contaminants in water: Current and future perspectives

Thuptimdang

Siripattanakul‐Ratpukdi

Ratpukdi

et al. 2020

Water Environment Research

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This review article discusses the current state of knowledge on water treatment and reuse by biofiltration systems focusing on biologically enhanced activated carbon (BAC) process. First, the applications of BAC in water treatment systems are overviewed, and then, the mechanisms for both biofilm formation and contaminant treatment are discussed along with the operational parameters influencing the performance of BAC process. Since contaminant removal by BAC is governed by adsorption and biodegradation, both processes are reviewed in relation to the treatment mechanisms. Information on removal of recent emerging contaminants including nitrogenous and unregulated disinfection by-products (DBPs) and their precursors, poly-and perfluorofluoroalkyl substances, nanoparticles, and plasticizers and microplastics by BAC is given along with suggestions for treatment improvements and future research. The uniqueness of this review includes insights on relevant biofilm aspects and the coverage on the abilities of BAC for treatment of recent and less common emerging contaminants especially unregulated DBPs and their precursors, nanoparticles, and plasticizers and microplastics. For future BAC studies, recommendations are proposed on exploring the biofilm development on media and recent emerging contaminants as co-contaminants, as well as developing novel supporting materials such as biochar. © 2020 Water Environment Federation • Practitioner points• The amount and the physiology and physical structure of biofilm affect the treatment efficiency of biological activated carbon. • Biological activated carbon is capable of removing a majority of nitrogenous and unregulated disinfection by-products. • Whether and how biological activated carbon is impacted by and/or can remove nanoparticles, and plasticizers and microplastics remain largely unknown. • Future work on biological activated carbon should focus on biofilm evolution and control, and novel support materials.

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Exploring long-term retention and reactivation of micropollutant biodegradation capacity

Branco,

Meulepas,

Rijnaarts

et al. 2024

Environ Sci Pollut Res

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The factors limiting micropollutant biodegradation in the environment and how to stimulate this process have often been investigated. However, little information is available on the capacity of microbial communities to retain micropollutant biodegradation capacity in the absence of micropollutants or to reactivate micropollutant biodegradation in systems with fluctuating micropollutant concentrations. This study investigated how a period of 2 months without the addition of micropollutants and other organic carbon affected micropollutant biodegradation by a micropollutant-degrading microbial community. Stimulation of micropollutant biodegradation was performed by adding different types of dissolved organic carbon (DOC)—extracted from natural sources and acetate—increasing 10 × the micropollutant concentration, and inoculating with activated sludge. The results show that the capacity to biodegrade 3 micropollutants was permanently lost. However, the biodegradation activity of 2,4-D, antipyrine, chloridazon, and its metabolites restarted when these micropollutants were re-added to the community. Threshold concentrations similar to those obtained before the period of no substrate addition were achieved, but biodegradation rates were lower for some compounds. Through the addition of high acetate concentrations (108 mg-C/L), gabapentin biodegradation activity was regained, but 2,4-D biodegradation capacity was lost. An increase of bentazon concentration from 50 to 500 µg/L was necessary for biodegradation to be reactivated. These results provide initial insights into the longevity of micropollutant biodegradation capacity in the absence of the substance and strategies for reactivating micropollutant biodegrading communities. Graphical abstract

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Effects of water quality changes on performance of biological activated carbon (BAC) filtration

Cited by 22 publications

References 34 publications

Design methodology to determine water quality monitoring strategy of surface water treatment plants

Design methodology to determine water quality monitoring strategy of surface water treatment plants

Biofiltration for treatment of recent emerging contaminants in water: Current and future perspectives

Exploring long-term retention and reactivation of micropollutant biodegradation capacity

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