傅学起
膜分离技术对味精发酵液菌体分离
个性化签名
- 姓名:傅学起
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
环境工程学
- 研究兴趣:膜分离技术对味精发酵液菌体分离
傅学起生于1941年生于河南省渭县,1966年毕业于北京大学化学系,现为南开大学环境科学于工程学院教授,博士生导师。傅学起教授长期工作在科学与教学第一线,对教学工作十分重视,主将过多门本科生和研究生课程,如环境监测、环境分析化学、仪器分析、高等环境监测等,讲课内容深入浅出,受到学生一致好评,两次被评为南开大学“优秀课程”奖和“优秀教师一等奖”。在科研方面,早年在中科院工作期间,从事分析仪器新方法研究和仪器研制,与黄本立先生(中科院院士)合作研制了国内第一个自行组装的电热原子化原子吸收分析装置――钽舟电热原子化器。1979年调入南开大学之后,与戴树桂、黄国兰等先生合作,发表了国内第一个以气相色谱与测汞仪联用进行汞的形态分析的文章。曾主持和参加过多项国家科技攻关和天津市攻关和基金课题,其中“天津市大气颗粒物来源解析”(国家“六五”攻关)获国家科委三等奖(本人第三名),废水资源化(“七五”攻关)获得国家环保总局科技进步二等奖,并获天津市总工会授予的“八五”立功奖章和证书。此外,傅学起教授在光谱技术上也有较深的造诣,他的Slary光谱进样技术和双喷雾氢化物原子吸收和原子荧光原子化系统在国内也有一定的影响,由他本人研制的高密度、高活性的球形βNi(OH)2 (镍氢电池正极材料)达到国内领先水平。近年来他指导的学生把研究的重点转向膜分离技术对味精发酵液菌体分离进行深入的应用基础研究,为味精行业生产工艺的改革,实现清洁生产提供了理论依据。在国内外刊物上发表研究论文五十余篇,其中四篇被SCI收录,五篇被AA(英国皇家分析化学文摘)收录。
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傅学起, 李秀芬, 付学起
膜科学与技术2001, 21(6),-0001,():
-1年11月30日
膜分离过程是一种选择性高、操作简单、能耗低的纯物理分离技术,已在各工业领域和科学研究中得到广泛的应用. 文章对膜分离技术在抗生素提炼领域的技术进展进行了较全面的综述。
膜分离, 抗生素, 超滤, 纳滤, 液膜分离
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傅学起, 胡国臣, 李秀芬
城市环境与城市生态第2002,15(4),-0001,():
-1年11月30日
在大量试验研究的基础上提出了一种改进型膜生物反应器(MBR),并对其处理洗浴污水的效果进行了试验,结果表明:利用改进型MBR 处理洗浴污水出水水质良好,COD<40mg/L,LAS<0.2mg/L,符合国家建设部颁布的生活杂用水回用水质标准。
洗浴污水, 膜生物反应器, 膜污染
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傅学起, 杨树
光谱学与光谱分析1997,17(5),-0001,():
-1年11月30日
本文利用生物胶作为稳定剂和基体改进剂,把难溶环境固体样品制备成悬浊液,直接进样测定煤飞灰中的铅,得到了准确的结果。找出了日立180-80石墨炉原子吸收光谱仪的最佳线性范围7.0~66.7ng/mL,原子化适宜温度2000℃,生物胶最佳用量范围0.2~1.2%,并分析了酸度、搅拌、粒度对测定结果的影响。
悬浊液进样,, 电热原子吸收,, 铅,, 生物胶
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傅学起, 杨树
环境科学与技术1996,(4),-0001,():
-1年11月30日
利用生物胶作为稳定剂,把难溶环境固体样品制备成悬浊液,直接进样测定煤飞灰中的铜,并且利用石墨炉平台技术和塞曼背景扣除法,得到了准确的结果。找出了线性范围,原子化适宜温度,生物胶最佳用量范围,并分析了酸度、搅拌、粒度对测定结果的影响。
悬浊液进样 电热原子吸收 铜 生物胶 塞曼背景扣除
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【期刊论文】SPE-HPLC测定黄瓜中除虫脲灭幼脲和杀铃脲的残留检测方法
傅学起, 黄永春, 王继军, 黄士忠
农业环境科学学报2004,23(31):615-618,-0001,():
-1年11月30日
采用固相萃取(SPE)和液相色谱(HPLC)相结合的方法对除虫脲、灭幼脲和杀铃脲在黄瓜中的残留检测条件进行了研究。结果表明,本法采用乙腈提取经盐析脱水后,取5.0mL稀释1倍直接上样,经甲醇洗脱后定容至4.0mL,摇匀后进液相色谱直接检测,方法简便易于操作。3种农药的最小检出浓度分别为0.0143mg·kg-1,0.0167mg·kg-1,0.020mg·kg-1,高浓度、中浓度和低浓度的平均添加回收率分别为95.11%~99.35%,94.00%~101.63%,101.65%~105.15%。变异系数分别为1.35%~1.84%,3.77%~6.09%,2.63%~809%。
农药残留, 固相萃取, 液相色谱, 除虫脲, 灭幼脲, 杀铃脲, 检测方法
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【期刊论文】Effect of Ultrasound Irradiation on Polymeric Microfiltration Membrane
傅学起, Xiao-li Wang, Xiu-fen Li, Xue-qi Fu, * Rui Chen, Bo Gao
,-0001,():
-1年11月30日
The effect of powerful ultrasound (US) at a frequency of 40 kHz and at the intensity of 1.43~3.57 W·cm-2 on polymeric microfiltration (MF) membrane was evaluated in this paper. Four different polymers including polyethersulfone (PES), nylon 6 (N6), the mixed ester of cellulose nitrate with cellulose acetate (CN-CA) and polyvinylidenefluoride (PVDF), which average pore diameter are 0.45μm, were investigated respectively. The evolution of the polymeric structure exposed to US was followed by the measurements of the water flux and the rejection rate of 1wt% isolated soybean protein (ISP). The result shows that important variations occur on some membranes after irradiation. In addition, microscopic photos of irradiated membranes by field emission scanning electron microscopy (FESEM) were taken in order to directly observe the change on membrane surface. It has been shown that, over the four materials tested, only the PVDF presents no significant change in the measured parameters with increase of the duration at the low intensity of ultrasound irradiation, whereas the others are affected by ultrasound treatment.
ultrasound wave,, polymeric membrane,, microfiltration,, water flux,, FESEM
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【期刊论文】Adsorption of glutamicum onto polysulphone membrane
傅学起, Xiufen Li a, *, Yushan Zhang b, c, Xueqi Fu c
Separation and Purification Technology 37 (2004) 187-98,-0001,():
-1年11月30日
A systematic study on the influence of solution chemistry (pH, ionic strength) and bulk cell concentration on static and dynamic glutamicum adsorption onto polysulphone membrane, cell adsorption isotherms, and the rate of adsorption was performed. The interaction between cells and membrane surface in the absence of saltwas dominated by electrostatic interaction due to the charges on the cell surface. The maximum adsorption occurred at isoelectric point (IEP) of cells, suggesting complementary electrostatically driven adsorption. At pH values belowthe IEP, adsorption increased as pH increased, but above the IEP, adsorption decreased as pH increased. Increased salt concentration reduces electrostatic repulsion between like-charged material (increasing adsorption) and decreases electrostatic attraction between oppositely charged material (decreased adsorption). Isotherms were performed to determine equilibrium adsorption behavior. Adsorption isotherms follow Langmuir laws, the parameters of which were determined. By taking into account electrostatic interactions, it has been possible to explain the evolution in the adsorption isotherms of the cell on the membrane surface with the solution chemical conditions. Rate of adsorption was determined by measuring adsorbed mass as a function of time at different pHvalues, ionic strength, and bulk feed concentration. In order to determine the effect of convective flow and electrostatic interactions on the cell adsorption behavior, static and dynamic adsorption were compared. Although convective forces tend to increase the amount of cell accumulated near the membrane surface, electrostatic interactions played a stronger role, as evident in the irreversible adsorption results for the static and dynamic cases. Controlling electrostatic interactions could reduce adsorption of cells onto the membrane, consequently reducing long-term membrane fouling.
Ultrafiltration, Polysulphone membranes, Adsorption, Glutamic acid
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