Review of Methods Used to Indication of Biological Carbon Filters Activity

Lis, A.; Pasoń, Łukasz; Stępniak, L.

doi:10.17512/ios.2016.3.11

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…The marking was carried out at 35°C. Then, the sample was mixed, inserted into the luminometer and the result was read in relative light units -RLU units [Lis, 2016].…”

Section: Luminometric Marking Of Atpmentioning

confidence: 99%

Biological Stability of Water after the Biofiltration Process

Zamorska¹

2018

J. Ecol. Eng.

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One of the most frequently implemented processes in the water treatment technology is filtration through a biosorption bed. The techniques based on biochemical processes involving bacteria result in obtaining high quality of water. There are a number of different materials used as the filler material for biological filters. Carbon deposits are the most popular, due to their high effectiveness. The problem with the use of this process is the leaching of microorganisms from the biofilm and the biological stability of water thus obtained. There is a need to develop quick methods to assess the microbiological quality of this water. Modern techniques for determining the amount of microorganisms, such as flow cytometry and luminometry may be the right tools. The water collected for testing came from the Water Treatment Station located in the Podkarpackie voivodeship. The microbiological tests carried out in the analyzed water samples collected after the filtration process on granular activated carbon. Both traditional culture method and modern techniques used to determine the number of microorganisms (flow cytometry, luminometric ATP assay) demonstrated an increase in the number of microorganisms in the examined waters (in the water after the filtration process and in the water introduced into the water supply network) after the incubation process for 3 and 7 days at 15 and 22°C.

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“…The marking was carried out at 35°C. Then, the sample was mixed, inserted into the luminometer and the result was read in relative light units -RLU units [Lis, 2016].…”

Section: Luminometric Marking Of Atpmentioning

confidence: 99%

Biological Stability of Water after the Biofiltration Process

Zamorska¹

2018

J. Ecol. Eng.

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“…The second analyzed method -the measurement of microbial activity using the FDA is based on the determinationofesteraseactivity(OlszewskaandŁaniewska--Trokenheim 2013, Lis et al 2016). Esterase is an enzyme which converts fluorescein diacetate to fluorescein -a green fluorescent chemical compound.…”

Section: Discussionmentioning

confidence: 99%

Archives of Environmental Protection

Holc¹,

Mądrecka-Witkowska²,

Komorowska-Kaufman³

et al. 2021

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The biofiltration process in the biologically activated carbon filters (BAC) is one of advanced methods of water treatment. It enables efficient elimination of dissolved organic matter and some inorganic pollutants. The production of high-quality drinking water requires an appropriate method of filter work control based on biofilm growth assessment. The first aim of the study was to assess the microbial development in beds of two BAC filters with the use of various methods. The second aim was to compare the obtained results and indicate the method which could support filter operators during routine control of biofiltration process. The study was carried out in a pilot scale on models of BAC filters during two filter runs. The analysis of microorganisms was performed in water samples collected from different depths of the filter beds with the use of culture method (HPC), metabolic activity assay (with the FDA), epifluorescence microscopy -total cell count method (TCC) and biochemical method (system Vitek 2 Compact). No statistical correlation between HPC and metabolic activity assay was noted. Total bacteria number determined with the use of TCC was approx. 100-900 times higher than in the HPC method. The biochemical tests revealed the presence of several Gram-negative species. The comparison of the applied methods shows that microbial activity assay is the most useful, fast and low-cost method which may be applied additionally to the HPC method at standard water treatment plant laboratory.

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“…The use of biologically active filters (BAF) to remove organic compounds from water gives very good results [6][7][8]. Biofiltration is also a way to ensure biological stability of tap water and reduce the doses of disinfectants [3,9,10,11].…”

Section: Introductionmentioning

confidence: 99%

The sorption of organic compounds from water during technological start-up of carbon filters

et al. 2019

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Natural waters contain organic substances that have a major impact on the quality of water, in particular on its organoleptic properties. They can also change its physical and chemical properties and have a negative impact on the technological processes used during water treatment. There is no doubt that organic substances contained in natural waters have to be removed during treatment processes in order to achieve concentrations consistent with the requirements concerning the quality of water intended for human consumption. A very effective method of organic compounds elimination from water is to use of biologically active filters (BAF). This article presents the results of pilot scale research on the effectiveness of removal of organic compounds from water using filtration through a bed of activated carbon filters, during their technological start-up. The obtained results showed high, more than 91% efficiency of reducing the content of organic compounds expressed by TOC, COD (KMnO4) and UV254 absorbance. The predominant process at the start of the use of carbon filters has been sorption. During the research, the development of biofilm in the filter bed was also controlled. The identification of microorganisms showed the presence of Gram-negative bacteria in the beds of both filter columns.

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Review of Methods Used to Indication of Biological Carbon Filters Activity

Cited by 4 publications

References 11 publications

Biological Stability of Water after the Biofiltration Process

Biological Stability of Water after the Biofiltration Process

Archives of Environmental Protection

The sorption of organic compounds from water during technological start-up of carbon filters

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