Journal ArticleDOI
pH-decrease in nitrifying biofilms
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TLDR
In this article, it has been shown theoretically that the diffusional resistance to the transport in the biofilm of the inorganic carbon species as affected by the acidity production in a nitrifying biofilm gives rise to a decreased pH in the interior of the biofilms.About:
This article is published in Water Research.The article was published on 1986-08-01. It has received 85 citations till now. The article focuses on the topics: Biofilm.read more
Citations
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Journal ArticleDOI
Design and operations of the Kaldnes moving bed biofilm reactors
TL;DR: This paper describes the fundamentals of the moving bed biofilm reactor and has a major emphasis on nitrification with the type of biofilm carrier used in fish farms, but briefly touches upon removal of organic matter and denitrification.
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Nitrification kinetics of biofilm as affected by water quality factors
TL;DR: The current knowledge on nitrification kinetics as affected by the aforementioned factors based on literature and the results from the authors' laboratories are summarized.
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Influence of pH over nitrifying biofilm activity in submerged biofilters
TL;DR: The influence of pH over nitrification in submerged biofilters has been studied through the observation of three pH effects over the nitrifying biofilm: activation-deactivation, substrate limitation, and free ammonia inhibition.
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Design and operation of nitrifying trickling filters in recirculating aquaculture: A review
TL;DR: In this article, the main mechanisms and parameters affecting the design and performance of trickling filters in aquaculture are discussed, including the relationship between nitrification rates and easily accessible process parameters, like bulk phase concentration of TAN, O2, organic matter (COD), nitrite, temperature, HCO3−, pH and hydraulic loading of the trickling filter.
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Nitrification at low oxygen concentration in biofilm reactor
TL;DR: In this article, a biofilm biofilm reactor with low dissolved oxygen (DO) concentration was used to achieve stable nitrite accumulation in the effluent during >110 days' operation.
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Internal diffusion and reaction in biological films.
TL;DR: “Bituminous Materials”, Vol IV, p 294, Van Nostrand, Princeton, \ , ~~~~ ~~-~ .
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Criteria for Nitrification in Fixed Film Reactors
TL;DR: In this paper, it is shown that nitrification in fixed films can be achieved only when nitrifiers embedded in the surface of a growing biofilm of mineralizing bacteria get sufficient time in the aerobic zone of the biofilm to multiply and reach such concentrations that ammonia conversion becomes significant.
Journal Article
The significance of pore diffusion to filter denitrification
TL;DR: In this article, the theoretical basis for suspended growth denitrification is presented, which is similar to that used for conventional activated sludge, but no suit able theoretical approach to attached cul tures is available.
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Effect of Denitrification on the pH in Biofilms
Erik Arvin,Gert Holm Kristensen +1 more
TL;DR: In this paper, the pH inside a denitrifying biofilm may be considerably higher than the pH in the bulk liquid, which has been verified by simultaneous measurements of the pH at the rear of the biofilm and in the liquid.