广西大学学报（自然科学版）
廣西大學學報（自然科學版）
엄서대학학보（자연과학판）
JOURNAL OF GUANGXI UNIVERSITY （NATURAL SCIENCE EDITION）
2006年
1期
24-31
,共8页
液相油烟%菌种驯化%降解速率
液相油煙%菌種馴化%降解速率
액상유연%균충순화%강해속솔
aqueous cooking fume%strain domesticating%biodegrading velocity
用油烟气冷凝液为碳源,驯化来自城市污水处理厂氧化沟的活性污泥,结果表明真菌增长较快并显示出优势,微生物通过分工协作降解油烟污染物.一株优势红冬胞酵母菌被分离出来进行降解液相油烟污染物的动力学试验研究,实验结果表明:在优化条件37℃、pH值范围为6.0～7.0、无机盐浓度为1.0 mg/L、磷酸氢铵浓度为5.0 mg/L、溶解氧浓度为5.4 mg/L(搅拌速度120～160 r/min)下,优势红冬胞酵母菌降解液态油脂的动力学模型是:u=0.13s/352+s(h-1);在低油烟浓度(<352 mg/L)条件下,降解反应为一级生化反应;在高油烟浓度(>352 mg/L)条件下,降解反应为零级生化反应;当油烟浓度等于352 mg/L时,比降解速率是最大比降解速率K值的一半,油烟浓度处于352 mg/L附近时,是从一级降解反应到零级降解反应的过度区.
用油煙氣冷凝液為碳源,馴化來自城市汙水處理廠氧化溝的活性汙泥,結果錶明真菌增長較快併顯示齣優勢,微生物通過分工協作降解油煙汙染物.一株優勢紅鼕胞酵母菌被分離齣來進行降解液相油煙汙染物的動力學試驗研究,實驗結果錶明:在優化條件37℃、pH值範圍為6.0～7.0、無機鹽濃度為1.0 mg/L、燐痠氫銨濃度為5.0 mg/L、溶解氧濃度為5.4 mg/L(攪拌速度120～160 r/min)下,優勢紅鼕胞酵母菌降解液態油脂的動力學模型是:u=0.13s/352+s(h-1);在低油煙濃度(<352 mg/L)條件下,降解反應為一級生化反應;在高油煙濃度(>352 mg/L)條件下,降解反應為零級生化反應;噹油煙濃度等于352 mg/L時,比降解速率是最大比降解速率K值的一半,油煙濃度處于352 mg/L附近時,是從一級降解反應到零級降解反應的過度區.
용유연기냉응액위탄원,순화래자성시오수처리엄양화구적활성오니,결과표명진균증장교쾌병현시출우세,미생물통과분공협작강해유연오염물.일주우세홍동포효모균피분리출래진행강해액상유연오염물적동역학시험연구,실험결과표명:재우화조건37℃、pH치범위위6.0～7.0、무궤염농도위1.0 mg/L、린산경안농도위5.0 mg/L、용해양농도위5.4 mg/L(교반속도120～160 r/min)하,우세홍동포효모균강해액태유지적동역학모형시:u=0.13s/352+s(h-1);재저유연농도(<352 mg/L)조건하,강해반응위일급생화반응;재고유연농도(>352 mg/L)조건하,강해반응위령급생화반응;당유연농도등우352 mg/L시,비강해속솔시최대비강해속솔K치적일반,유연농도처우352 mg/L부근시,시종일급강해반응도령급강해반응적과도구.
Active sludge from the oxidation ditch of the municipal sewage treatment plant had been domesticated for 21 days with condensate of cooking fume gas as carbon source. The result indicated that the fungi grew quickly and showed dominance in the progress of the domestication,and pollutants from cooking fumes can be degraded by this dominant microorganism with cooperation and independence. A dominant yeast strain-Rhodosporidium toruloides was isolated by pure culture,experiments of biodegrading aqueous cooking fume were done to research kinetics. The experimental result showed that in the condition that pH value ranges from 6. 0 to 7. 0, under optimizing terms 37C, the concentration of mineral salts is 1. 0 mg/L,ammonium hydrogen phosphate is 5.0 mg/L,and dissolved oxygen is 5.4 mg/L (stirring rate is 120～160 r/min ), the kinetic model of dominant yeast strain biodegrading aqueous cooking fume is u =0.13s/352+s (h-1);When concentration of cooking fume is low (< 352 mg/L), degrading reaction belongs to one order biochemical reaction; when concentration of cooking fume is high (>352 mg/L),degrading reaction belongs to zero order biochemical reaction ,with a biodegrading rate maximum value-0. 13 kg (oil)/[h. kg (biobial)];when concentration of cooking fume equals to 352 mg/L;specific biodegrading rate is equal to one half of the peak specific biodegrading rate (the value of K),and belongs to the transition region from first order to zero order reaction.
