Comparison of the nitrification efficiencies of three biofilter media in a freshwater system SCOPUS KCI

Title
Comparison of the nitrification efficiencies of three biofilter media in a freshwater system
Author(s)
Harwanto, D.; Oh, S.-Y.; Jo, J.-Y.
KIOST Author(s)
Oh, Sung Yong(오승용)
Publication Year
2012-12
Abstract
Total ammonia nitrogen (TAN) removal efficiencies of a sand filter (SF), polystyrene microbead filter (PF), and Kaldnes bead filter (KF) media were evaluated under ammonia loading rates of 5, 25, and 50 g m-3 day-1. The volume of each filter media tested was 7 L, and the water flow rate for all filter media was 24 L/min. The specific surface areas of the SF, PF, and KF were 7,836, 3,287, and 500 m2/m3, respectively. Sand was fluidized and the other two media were trickle filtered. The volumetric TAN removal rate increased with increasing ammonia loading rate for all filter media. Mean volumetric TAN removal rates under the ammonia loading rates of 5, 25, and 50 g m-3 day-1 in SF (39.3, 168.6, and 322.7 g m-3 day-1, respectively) were higher than those in PF (35.0, 157.4, and 310.5 g m-3 day-1, respectively) and KF (32.1, 142.5, and 288.1 g m-3 day-1, respectively). These results were related to differences in the specific surface areas of the filter media. PF was the most economic media for efficiently removing TAN. © The Korean Society of Fisheries and Aquatic Science.
ISSN
2234-1749
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3404
DOI
10.5657/FAS.2011.0363
Bibliographic Citation
Fisheries and Aquatic Sciences, v.14, no.4, pp.363 - 369, 2012
Publisher
한국수산과학회
Keywords
Ammonia removal; Biofilter media; Freshwater; Nitrification; Recirculation system
Type
Article
Language
English
Document Type
Article
Publisher
한국수산과학회
Related Researcher
Research Interests

Fish aquaculture,Aquacultural engineering,Environmental physiology,어류 양식,양식 공학,환경생리학

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