TY  - JOUR
PB  - Yogyakarta State University
Y1  - 2014/05//
UR  - http://fmipa.uny.ac.id
TI  - THE EFFECTS OF MICRO- AND NANOHYDROXYAPATITE APPLICATION
IN METAL CONTAMINATED SOIL ON METAL ACCCUMULATION IN
IPOMOEA AQUATICA AND SOIL METAL BIOAVAILABILITY
A1  - Azlan, Kamari
A1  - Norjan, Yusof
A1  - Che Fauziah, Ishak
A1  - Esther, Phillip
A1  - Galuh, Yuliani
ID  - UNY11337
JF  - Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2014,
AV  - public
KW  - Contaminated soil
KW  -  heavy metal
KW  -  soil stabilisation
KW  -  water spinach
KW  - 
microhydroxyapatite
KW  -  nanohydroxyapatite
N2  - The potential of microhydroxyapatite (MHA) and nanohydroxyapatite (NHA) to
immobilise heavy metals in a 25-year old active firing range soil was investigated.
The effects of immobilisation were evaluated in terms of metal accumulation in
water spinach (Ipomoea aquatica) and soil metal bioavailability. A pot trial was
conducted by amending firing range soil with MHA and NHA at application rates of
0%, 1% and 3% (w/w). Both amendments increased biomass yield and reduced plant
metal uptake. The bioconcentration factor (BCF) values of the metals were in the
order of Zn > Cu > Pb. The bioavailable fraction of Cu, Pb and Zn in firing range
soil decreased significantly (p < 0.05) following MHA and NHA treatments. No
toxicity symptoms were observed in water spinach over the pot trial. Therefore,
MHA and NHA are two promising immobilising agents for the remediation of metal
contaminated land.
ER  -