TY - JOUR
T1 - Application of struvite precipitation in treating ammonium nitrogen from semiconductor wastewater
AU - Ryu, Hong Duck
AU - Kim, Daekeun
AU - Lee, Sang Ill
PY - 2008/8/15
Y1 - 2008/8/15
N2 - Struvite precipitation was applied to the removal of NH4-N in semiconductor wastewater. Batch experiments were conducted to examine the effects of final pH, magnesium and orthophosphate dosages and the initial influent concentrations of NH4-N and F on the removals of NH4-N and PO4-P by forming struvite deposits. pH was an important parameter in the simultaneous removals of ammonium nitrogen and orthophosphate. In struvite precipitation, the amount of orthophosphate in the solution affected NH4-N removal much more than that of magnesium ions in some cases. It was revealed that the low and high initial concentrations of NH4-N and F inhibited NH4-N and PO4-P removal efficiencies in struvite precipitation, respectively. We also evaluated field-scale treatment plant incorporated by struvite precipitation process. On semiconductor wastewater with an NH4-N concentration of 155 mg/L, the results obtained showed that the incorporation of the struvite precipitation process brought about a high NH4-N removal efficiency of over 89% on average.
AB - Struvite precipitation was applied to the removal of NH4-N in semiconductor wastewater. Batch experiments were conducted to examine the effects of final pH, magnesium and orthophosphate dosages and the initial influent concentrations of NH4-N and F on the removals of NH4-N and PO4-P by forming struvite deposits. pH was an important parameter in the simultaneous removals of ammonium nitrogen and orthophosphate. In struvite precipitation, the amount of orthophosphate in the solution affected NH4-N removal much more than that of magnesium ions in some cases. It was revealed that the low and high initial concentrations of NH4-N and F inhibited NH4-N and PO4-P removal efficiencies in struvite precipitation, respectively. We also evaluated field-scale treatment plant incorporated by struvite precipitation process. On semiconductor wastewater with an NH4-N concentration of 155 mg/L, the results obtained showed that the incorporation of the struvite precipitation process brought about a high NH4-N removal efficiency of over 89% on average.
KW - Ammonium nitrogen removal
KW - Fluoride
KW - Orthophosphate removal
KW - Semiconductor wastewater
KW - Struvite
UR - https://www.scopus.com/pages/publications/44649095341
U2 - 10.1016/j.jhazmat.2007.12.010
DO - 10.1016/j.jhazmat.2007.12.010
M3 - Article
C2 - 18206300
AN - SCOPUS:44649095341
SN - 0304-3894
VL - 156
SP - 163
EP - 169
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -
