<b>Treatment of High-Concentration Ammonium Wastewater with Immobilized Nitrifying Bacteria and their Microbial Ecolo</b><b>gy </b>
-
- YAMASAKI Hirohito
- Ube National College of Technology
-
- YOSHIYA Itoe
- Ube National College of Technology
-
- NEGORO Munetaka
- Ube National College of Technology
-
- FUKUNAGA Kimitoshi
- Graduate School of Science and Engineering, Yamaguchi University
Bibliographic Information
- Other Title
-
- 固定化亜硝酸菌群による高濃度窒素含有排水処理と生態学的考察
- コテイカ アショウサンキングン ニ ヨル コウノウド チッソ ガンユウ ハイスイ ショリ ト セイタイガクテキ コウサツ
- Treatment of High-Concentration Ammonium Wastewater with Immobilized Nitrifying Bacteria and their Microbial Ecology
Search this article
Abstract
In this study, research of optimal conditions for nitritation with immobilized nitrifying bacteria on hydrogels and identification of their bacterium which producing with speedy and alternatively only NO2- from 3,000 to 5,300 ㎎/L of NH4-N was carried out. The fraction of biocatalysts was approximately 10 wt% in 4L of a bubbling vessel in a batch reaction. The amount of produced NO2- increased with rising pH(pH 7.0 to 8.0).At pH 8.0, 5,300 ㎎/L of NH4-N completely disappeared, and 5,058 ㎎/L of NO2-N was produced. From the result of gene analysis, it was suggested that this nitritation reaction without production of NO3- was caused by the bacteria Methylobacterium extorquens DM4, which acts as a nitrite-reducing enzyme. It is expected that high concentration NO2- obtained with high-speed biologic treatment can lead to the development of a new disappearance-type nitrogen eliminating system that is cheap and compact, followed by biologic treatment.
Journal
-
- Journal of Environmental Conservation Engineering
-
Journal of Environmental Conservation Engineering 42 (6), 362-369, 2013
Society of Environmental Conservation Engineering
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001204593088128
-
- NII Article ID
- 10031174474
-
- NII Book ID
- AN00046213
-
- COI
- 1:CAS:528:DC%2BC3sXhtlShu77I
-
- ISSN
- 18828590
- 03889459
-
- NDL BIB ID
- 024699932
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed