Impact of intermittent feeding on polishing of micropollutants by moving bed biofilm reactors (MBBR)

Tang, Kai; Rosborg, P.; Rasmussen, Emma S.; Hambly, Adam C.; Madsen, Michael; Jensen, Niels Møller; Hansen, Aviaja Anna; Sund, Christina; Andersen, Henrik Reif; Torresi, Elena; Kragelund, Caroline; Andersen, Henrik Rasmus

doi:10.1016/j.jhazmat.2020.123536

Cited by 43 publications

(21 citation statements)

References 43 publications

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“…This result is in line with our previous study which showed that sorption was the dominant removal pathway for sertraline [9]. However, the sorption ability of suspended biofilms to other micropollutants was negligible as reported in the previous literature [9,26]. Regardless, the other 3 of the 14 investigated compounds (i.e.…”

Section: Discussionsupporting

confidence: 92%

“…Briefly, 900 μL of the sample was mixed with 100 μL of internal standards, and then transferred into a HPLC vial (Agilent, Germany) and then 10 μL of mixture was injected into the HPLC-MS/MS for measurement. Specific procedures with regards to internal standards and HPLC-MS/MS parameters are detailed within a previous study [26].…”

Section: Micropollutant Quantificationmentioning

confidence: 99%

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Engineered Manganese Redox Cycling in Anaerobic-Aerobic Mbbrs for Utilisation of Biogenic Manganese Oxides to Efficiently Remove Micropollutants

Wang¹,

Hambly²,

Wang³

et al. 2022

SSRN Journal

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Section: Discussionsupporting

confidence: 92%

Section: Micropollutant Quantificationmentioning

confidence: 99%

Engineered Manganese Redox Cycling in Anaerobic-Aerobic Mbbrs for Utilisation of Biogenic Manganese Oxides to Efficiently Remove Micropollutants

Wang¹,

Hambly²,

Wang³

et al. 2022

SSRN Journal

Self Cite

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“…Most municipal WWTPs have a form of active-biological treatment with oscillations between aerobic and anaerobic cycles, which remove organic compounds and nutrients such as nitrogen and phosphorous complexes (Tang et al. , 2020a, b, c). In some facilities, a chemical process is added if certain outlet requirements cannot be met, or if certain difficult inorganic compounds need to be removed.…”

Section: Literature Studymentioning

confidence: 99%

“…Micropollutants are of increasing public importance because of their nature and negative side effects affecting the environment, the wildlife, ecosystems and human health as well (Tang et al. , 2020a, b, c; McEachran et al. , 2016).…”

Section: Introductionmentioning

confidence: 99%

Advanced wastewater treatment of micropollutants – state of the art

Lauesen

2022

TECHS

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PurposeMicropollutants in the aquatic environment pose threats to both ecosystems and human health. Traditional wastewater treatment plants (WWTP) reduce some micropollutants, especially those who adhere to sludge or suspended matter. The hydrophilic micropollutants, on the other side, which may be non-biodegradable and resistant to UV-treatment etc. are typically transported untreated into the water recipients. This paper contains a literature study on the state of the art of advanced wastewater treatment technologies for reducing micropollutants such as pharmaceutical degradation products, personal care products, surfactants and industrial chemicals including heavy metals.Design/methodology/approachThis literature study is completed using the most extensive and expansive literature database in the World to date, Google Scholar (GS). Published papers in recognized scientific journals are sought out in GS, and for relevance for this literature study, papers published here from 2016 and onwards (the last 5 years) have been chosen to eliminate irrelevant studies.FindingsThe result of the study is that there are many promising technologies on the market or emerging; however, no one solution treats every micropollutant equally well. Since advanced technologies often require expensive investments for municipalities and companies, it is important to identify which micropollutants pose the highest risk towards human health and the environment, because choosing systems to eliminate them all is not economically wise, and even choosing a system combining the existing technologies can be more expensive than states, municipalities and private companies are capable of investing in.Research limitations/implicationsThe research is limited to published papers on GS, which may omit certain papers published in closed databases not sharing their work on GS.Practical implicationsThe practical implications are that practitioners cannot find go-to solutions based on the conclusions of the research and thus need to use the results to investigate their own needs further in order to make the wisest decision accordingly. However, the paper outlines the state of the art in advanced wastewater treatment and explains the benefits and downsides of the technologies mentioned; however, more research in the field is required before practitioners may find a proper solution to their specific issues.Social implicationsThe social implications are that the consequences of introducing a removal of micropollutants from the water environment can ultimately effect the citizens/consumers/end-users through added costs to the tariffs or taxes on advanced wastewater treatment, added costs on everyday goods, wares and products and added costs on services that uses goods, wares and products that ultimately produces micropollutants affecting the water environment.Originality/valueThis paper presents a much needed state of the art regarding the current advanced technologies to mitigate micropollutants in wastewater. The overview the paper provides supports politics on national as well as international levels, where larger unions such as the EU has stated that advanced wastewater treatment will be the next step in regulating pollutants for aquatic outlet.

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“…MBBR is viewed as a self-cleaning reactor, as backwashing is not required and provides a better compact system by phasing out dead space that generates channeling and clogging [109][110][111][112]. The operation of the system is influenced by a combination of conditions viz., dissolved oxygen (DO), carrier size and shape, HRT, carrier percent fill, surface area loading rate, mixing, and aeration rate [113]. The studies on MBBR suggest its efficiency in the treatment of biological phosphorus, nitrogen, and organic matter and are preferably suitable for nitrification applications as the system facilitates the growth of nitrifying bacteria within the biocarriers [114,115].…”

Section: Moving Bed Biofilm Reactormentioning

confidence: 99%

Bioremediation of industrial effluents: A synergistic approach

Nagda

Meena

Shah³

2021

J Basic Microbiol

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Industrial wastewater consists of inorganic and organic toxic pollutants that pose a threat to environmental sustainability. The organic pollutants are a menace to the environment and life forms than the inorganic substances and pose teratogenic, mutagenic, carcinogenic, and other serious detrimental effects on the living entities, moreover, they have a gene-altering effect on aquatic life forms and affect the soil fertility and quality. Removal of varying effluents having recalcitrant contaminants with conventional treatment technologies is strenuous. In contrast to physical and chemical methods, biological treatment methods are environmentally friendly, versatile, efficient, and technically feasible with low operational costs and energy footprints. Biological treatment is a secondary wastewater treatment system that utilizes the metabolic activities of microorganisms to oxidize or reduce inorganic and organic compounds and transform them into dense biomass, which later can be removed by the sedimentation process. Biological treatment in bioreactors is an ex situ method of bioremediation and provides the benefits of continuous monitoring under controlled parameters. This paper attempts to provide a review of bioremediation technologies discussing most concerning widespread bioreactors and advances used for different industrial effluents with their comparative merits and limitations.

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Impact of intermittent feeding on polishing of micropollutants by moving bed biofilm reactors (MBBR)

Cited by 43 publications

References 43 publications

Engineered Manganese Redox Cycling in Anaerobic-Aerobic Mbbrs for Utilisation of Biogenic Manganese Oxides to Efficiently Remove Micropollutants

Engineered Manganese Redox Cycling in Anaerobic-Aerobic Mbbrs for Utilisation of Biogenic Manganese Oxides to Efficiently Remove Micropollutants

Advanced wastewater treatment of micropollutants – state of the art

Bioremediation of industrial effluents: A synergistic approach

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