TY - JOUR
T1 - Removal of humic acid from composted hog waste by the white-rot fungus, Phanerochaete chrysosporium
AU - Liu, Junying
AU - Song, Yunmeng
AU - Ruan, Roger
AU - Liu, Yuhuan
N1 - Publisher Copyright:
© IWA Publishing 2015.
PY - 2015
Y1 - 2015
N2 - The potential hazards of humic acid (HA) associated with hog waste effluent, coupled with increasing awareness of environmental problems, have prompted many countries to control disposal of effluents into water bodies and to maximize removal of HA. Here we employed the white-rot fungus, Phanerochaete chrysosporium, to degrade the HA in composted hog waste effluent, evaluated by the response surface method. Preliminary experiments demonstrate that pH, temperature and quantity of inoculum are significant variables determining success of the fungus. In total, 13 experiments were conducted with three variables designated as A (pH), B (temperature) and C (inoculum amount). The optimal conditions for reduction of HA by P. chrysosporium are pH 6, 31.5°C and an inoculum quantity of 5.86 g. Predicted and experimental results exhibit strong agreement, indicating efficiency in the model obtained by response surface method. Therefore, P. chrysosporium is an effective micro-organism for removal of HA from composted hog waste effluent.
AB - The potential hazards of humic acid (HA) associated with hog waste effluent, coupled with increasing awareness of environmental problems, have prompted many countries to control disposal of effluents into water bodies and to maximize removal of HA. Here we employed the white-rot fungus, Phanerochaete chrysosporium, to degrade the HA in composted hog waste effluent, evaluated by the response surface method. Preliminary experiments demonstrate that pH, temperature and quantity of inoculum are significant variables determining success of the fungus. In total, 13 experiments were conducted with three variables designated as A (pH), B (temperature) and C (inoculum amount). The optimal conditions for reduction of HA by P. chrysosporium are pH 6, 31.5°C and an inoculum quantity of 5.86 g. Predicted and experimental results exhibit strong agreement, indicating efficiency in the model obtained by response surface method. Therefore, P. chrysosporium is an effective micro-organism for removal of HA from composted hog waste effluent.
KW - Composted hog waste effluent
KW - Humic acid
KW - Phanerochaete chrysosporium
KW - White-rot fungus
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U2 - 10.2166/wst.2015.166
DO - 10.2166/wst.2015.166
M3 - Article
C2 - 26114276
AN - SCOPUS:84935042536
SN - 0273-1223
VL - 72
SP - 92
EP - 98
JO - Water Science and Technology
JF - Water Science and Technology
IS - 1
ER -