PMID- 19811901
OWN - NLM
STAT- MEDLINE
DCOM- 20100218
LR  - 20131121
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 30
IP  - 1
DP  - 2010 Jan
TI  - Nitrification of ammonium-rich sanitary landfill leachate.
PG  - 100-9
LID - 10.1016/j.wasman.2009.08.018 [doi]
AB  - The nitrification of ammonium-rich wastewater is considered challenging due to 
      the substrate inhibition particularly in the form of free ammonia (FA) and free 
      nitrous acid (FNA) in ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing 
      bacteria (NOB). The feasibility of the nitrifying activated sludge system to 
      completely nitrify synthetic stabilized landfill leachate with N-NH(4)(+) 
      concentration of 1452mg/L was tested in this study. The process started with 
      0.4kg N-NH(4)(+)/m(3)/day of nitrogen loading rate (NLR) in a fed-batch mode to 
      avoid any accumulation of the FA and FNA in the system followed by increasing the 
      nitrogen loading rate (NLR) gradually. Complete nitrification was achieved with a 
      very high ammonium removal percentage (approximately 100%). The maximum specific 
      and volumetric nitrification rate obtained were 0.49g N-NH(4)(+)/g VSS/day and 
      3.0kg N-NH(4)(+)/m(3)/day, respectively which were higher than those reported 
      previously for ammonium-rich removal using activated sludge system. The 
      nitrifying sludge exhibited good settling characteristics of up to 36mL/g VSS and 
      a long SRT of more than 53 days which contributed to the success of the 
      nitrification process. The coexistence and syntrophic association of the AOB and 
      NOB was observed by using Fluorescence in situ hybridization (FISH) technique 
      which supported the results on complete nitrification obtained in the system. 
      These findings would be of prominent importance for further treatment of actual 
      sanitary landfill leachate.
FAU - Yusof, N
AU  - Yusof N
AD  - Department of Biological Functions and Engineering, Graduate School of Life 
      Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, 
      Fukuoka, Japan. norjan@upsi.edu.my
FAU - Hassan, M A
AU  - Hassan MA
FAU - Phang, L Y
AU  - Phang LY
FAU - Tabatabaei, M
AU  - Tabatabaei M
FAU - Othman, M R
AU  - Othman MR
FAU - Mori, M
AU  - Mori M
FAU - Wakisaka, M
AU  - Wakisaka M
FAU - Sakai, K
AU  - Sakai K
FAU - Shirai, Y
AU  - Shirai Y
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20091006
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Industrial Waste)
RN  - 0 (Nitrites)
RN  - 0 (Oligonucleotides)
RN  - 0 (Quaternary Ammonium Compounds)
RN  - 0 (Water Pollutants, Chemical)
RN  - 7664-41-7 (Ammonia)
RN  - N762921K75 (Nitrogen)
RN  - T2I5UM75DN (Nitrous Acid)
SB  - IM
MH  - Ammonia/chemistry
MH  - Bacteria/metabolism
MH  - Biodegradation, Environmental
MH  - Equipment Design
MH  - Industrial Waste
MH  - Microscopy, Electron, Scanning
MH  - Nitrites/*chemistry
MH  - Nitrogen
MH  - Nitrous Acid/chemistry
MH  - Oligonucleotides/chemistry
MH  - Quaternary Ammonium Compounds/*chemistry
MH  - Temperature
MH  - Waste Disposal, Fluid/methods
MH  - Water Pollutants, Chemical/*analysis
MH  - Water Purification/*methods
EDAT- 2009/10/09 06:00
MHDA- 2010/02/19 06:00
CRDT- 2009/10/09 06:00
PHST- 2009/06/09 00:00 [received]
PHST- 2009/08/21 00:00 [revised]
PHST- 2009/08/31 00:00 [accepted]
PHST- 2009/10/09 06:00 [entrez]
PHST- 2009/10/09 06:00 [pubmed]
PHST- 2010/02/19 06:00 [medline]
AID - S0956-053X(09)00360-2 [pii]
AID - 10.1016/j.wasman.2009.08.018 [doi]
PST - ppublish
SO  - Waste Manag. 2010 Jan;30(1):100-9. doi: 10.1016/j.wasman.2009.08.018. Epub 2009 
      Oct 6.