PMID- 21977643
OWN - NLM
STAT- MEDLINE
DCOM- 20111107
LR  - 20190918
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 63
IP  - 10
DP  - 2011
TI  - Sources and leaching of manganese and iron in the Saigon River Basin, Vietnam.
PG  - 2231-7
AB  - High concentrations of manganese and iron in the Saigon River are major problems 
      for the water supply in Ho Chi Minh City (HCMC), Viet Nam. To identify their 
      sources and leaching processes, we surveyed water quality along the Saigon River 
      and ran batch leaching tests using soil and sediment samples. Two important 
      leaching processes were identified: acidic leaching from acid sulfate soil (ASS) 
      in the middle reaches of the river, and Mn dissolution and Fe reduction from 
      sediments in the downstream reaches. Low pH caused the concurrent release of Fe 
      and Mn from the ASS. In contrast, anoxia caused the release of Fe but not Mn from 
      the sediments, whereas low pH facilitated Mn dissolution. Sediments are a more 
      important source of Mn because of their higher Mn contents (10 times) and release 
      rates (14 times) than those from ASS.
FAU - Ha, Nguyen Thi Van
AU  - Ha NT
AD  - Faculty of Environment, Ho Chi Minh City University of Technology, 268 Ly Thuong 
      Kiet, District 10, Ho Chi Minh City, Viet Nam. ntvha2003@gmail.com
FAU - Takizawa, Satoshi
AU  - Takizawa S
FAU - Oguma, Kumiko
AU  - Oguma K
FAU - Phuoc, Nguyen Van
AU  - Phuoc NV
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Soil)
RN  - 0 (Sulfates)
RN  - 42Z2K6ZL8P (Manganese)
RN  - E1UOL152H7 (Iron)
SB  - IM
MH  - Geologic Sediments/chemistry
MH  - Hydrogen-Ion Concentration
MH  - Iron/*analysis
MH  - Manganese/*analysis
MH  - Rivers/*chemistry
MH  - Soil/chemistry
MH  - Sulfates/analysis
MH  - Vietnam
EDAT- 2011/10/08 06:00
MHDA- 2011/11/08 06:00
CRDT- 2011/10/08 06:00
PHST- 2011/10/08 06:00 [entrez]
PHST- 2011/10/08 06:00 [pubmed]
PHST- 2011/11/08 06:00 [medline]
AID - 10.2166/wst.2011.460 [doi]
PST - ppublish
SO  - Water Sci Technol. 2011;63(10):2231-7. doi: 10.2166/wst.2011.460.