[Treatment of ion-exchange monosodium glutamate wastewater by yeast].
Two strains of yeasts, Candida halophila and Rhodotorula glutinis, were acquired through screening from ion-exchange monosodium glutamate wastewater (IEMGW) which was characterized by its high contents of COD (40,690 mg/L), NH(4+)-N (16,914 mg/L) and SO(4)2- (18,000 mg/L). The mixture of the two species had a good COD removal performance for treating IEMGW in a pH rang of 4-9. The yeast technology was superior to the conventional activated sludge in terms of COD removal and COD decomposition rate, In a dilution rate range of wastewater from 1:1 to 1:9, a COD removal of 84.5% and an average COD decomposition rate of over 1.0 kg/(kg.d) were obtained under an initial pH of 4.
Yang
Q
Q
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085.
Yang
M
M
Zheng
S
S
Liu
F
F
D002175:Candida / Q000145:classification / Q000302:isolation & purification / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D012248:Rhodotorula / Q000145:classification / Q000302:isolation & purification / Q000378:metabolism*; D012970:Sodium Glutamate / Q000378:metabolism*; D013997:Time Factors; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D014874:Water Pollutants, Chemical; D012970:Sodium Glutamate