以进水中含有10 mg/L FeCl3的膜生物反应器(membrane bioreactor,MBR)为研究对象,考察铁离子在污泥混合液中的分布规律及对微生物代谢产物的影响.实验结果表明:污泥混合液中铁含量分布规律为胞内＞紧缚的胞外聚合物(tightly bound extracellular polymeric substances,TB)＞松散的胞外聚合物(loosely bound EPS,LB)＞溶解性微生物代谢产物(soluble microbial products,SMP);在运行80 d后,大部分铁离子存在于胞内(平均含量81.2％);Fe3的投加不但降低了SMP及EPS浓度,而且改变了微生物代谢产物的空间分布,其中SMP中多聚糖、TB和LB的含量下降明显.
参考文献
| [1] | Wei Gao;Heng Liang;Jun Ma.Membrane fouling control in ultrafiltration technology for drinking water production: A review[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20111/3(1/3):1-8. |
| [2] | Hai-feng Zhang;Bao-sheng Sun;Xin-hua Zhao.Effect of ferric chloride on fouling in membrane bioreactor[J].Separation and Purification Technology,20082(2):341-347. |
| [3] | Li JY.Effects of Fe(III) on floc characteristics of activated sludge[J].Journal of Chemical Technology & Biotechnology,20053(3):313-319. |
| [4] | Nguyen, V. T;Chia, T. W. R;Turner, M. S;Fegan, N;Dykes, G. A..Quantification of acid-base interactions based on contact angle measurement allows XDLVO predictions to attachment of <i>Campylobacter jejuni</i> but not <i>Salmonella</i>.[J].Journal of Microbiological Methods,20111(1):89-96. |
| [5] | 张杰;李春艳;李劲平;潘娟;向大雄.蒽酮硫酸法与苯酚硫酸法测定竹节参多糖含量的比较研究[J].中南药学,2012(6):421-424. |
| [6] | 姜亦超;白洪健;郭鸰;陈伟娜;程述震;曹飞扬;费鹏;苑秀娟;江岩.考马斯亮蓝法测定粪便中蛋白质含量及应用[J].食品研究与开发,2013(21):77-79,97. |
| [7] | Yu GuangHui;He PinJing;Shao LiMing.Characteristics of extracellular polymeric substances (EPS) fractions from excess sludges and their effects on bioflocculability[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,200913(13):3193-3198. |
| [8] | J.T. Novak;N. Verma;C.D. Muller.The role of iron and aluminium in digestion and odor formation[J].Water Science and Technology,20079(9):59-65. |
| [9] | Le-Clech P;Chen V;Fane TAG.Fouling in membrane bioreactors used in wastewater treatment[J].Journal of Membrane Science,20061/2(1/2):17-53. |
| [10] | 张海丰;刘洪鹏;赵贵龙;张德义.MBR 中微生物代谢产物对膜污染的影响及其调控方法的研究进展[J].东北电力大学学报,2013(4):2-7. |
| [11] | Wenshan Guo;Huu-Hao Ngo;Saravanamuthu Vigneswaran.Effect of different flocculants on short-term performance of submerged membrane bioreactor[J].Separation and Purification Technology,20103(3):274-279. |
| [12] | In S. Kim;Namjung Jang.The effect of calcium on the membrane biofouling in the membrane bioreactor (MBR)[J].Water research: A journal of the international water association,200614(14):2756-2764. |
| [13] | Sheng GP;Yu HQ;Li XY.Extracellular polymeric substances (EPS) of microbial aggregates in biological wastewater treatment systems: a review. [Review][J].Biotechnology Advances: An International Review Journal,20106(6):882-894. |
| [14] | GUANG-HUI YU;PIN-JING HE;LI-MING SHAO.Stratification Structure of Sludge Floes with Implications to Dewaterability[J].Environmental Science & Technology: ES&T,200821(21):7944-7949. |
| [15] | Daivd C. Sobeck;Matthew J. Higgins.Examination of three theories for mechanisms of cation-induced bioflocculation[J].Water research: A journal of the international water association,20023(3):527-538. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%