以农业废弃物茭白叶为原料,采用氯化亚铁盐溶液浸渍制备改性茭白叶生物吸附剂,并用扫描电镜研究了茭白叶改性前后的表面形貌变化,重点研究了被吸附溶液pH值、浸渍改性液的浓度、生物吸附剂粒度、吸附时间等因素对磷吸附能力的影响.研究结果表明,经12%FeCl2溶液浸渍制得的片状生物吸附剂在pH值5.5的NaH2PO4溶液中经30h吸附后,茭白叶纤维素的羟基与铁离子反应,使得改性后茭白叶生物吸附剂具有较强的吸附能力,其去磷能力最高可达5.02mg/g,吸附符合伪一级动力学模型.
参考文献
| [1] | Zhao D;Sengupta A K .[J].Water Research,1998,32(05):1613. |
| [2] | Amrhein C;AndersonI M A et al.[J].Hydrobiologia,2008,604:37-44. |
| [3] | Grzmil B;Wronkowski J .[J].Desalination,2006,189:261. |
| [4] | Vymazal J .[J].Science of the Total Environment,2007,380(1-3):48. |
| [5] | Arias CA.;Brix H.;Del Bubba M. .Phosphorus removal by sands for use as media in subsurface flow constructed reed beds[J].Water research: A journal of the international water association,2001(5):1159-1168. |
| [6] | A. DRIZO;C. A. FROST;J. GRACE .PHYSICO-CHEMICAL SCREENING OF PHOSPHATE- REMOVING SUBSTRATES FOR USE IN CONSTRUCTED WETLAND SYSTEMS[J].Water research: A journal of the international water association,1999(17):3595-3602. |
| [7] | Zeng L;Li X;Liu J .[J].Water Research,2004,38(05):1318. |
| [8] | Onyango MS;Kuchar D;Kubota M;Matsuda H .Adsorptive removal of phosphate ions from aqueous solution using synthetic zeolite[J].Industrial & Engineering Chemistry Research,2007(3):894-900. |
| [9] | Namane A;Mekarzia A;Benrachedi K et al.[J].Journal of Hazardous Materials,2005,119(1-3):189. |
| [10] | Karaca S;Gurses A;Ejder M et al.[J].Journal of Hazardous Materials,2006,128(2-3):273. |
| [11] | Tanada S;Kabayama M;Kawasaki N et al.[J].Journal of Colloid and Interface Science,2003,257(01):135. |
| [12] | Sreenivasulu A;Sundaram E V;Komal Reddy M .[J].Indian Journal of Chemical Technology,1999,6(05):256. |
| [13] | Ayoub G M;Koopman B;Pandya N .[J].Water Environment Research,2001,73(04):478. |
| [14] | Eberhardt TL;Min SH;Han JS .Phosphate removal by refined aspen wood fiber treated with carboxymethyl cellulose and ferrous chloride[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2006(18):2371-2376. |
| [15] | Eberhardt TL;Min SH .Biosorbents prepared from wood particles treated with anionic polymer and iron salt: Effect of particle size on phosphate adsorption[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2008(3):626-630. |
| [16] | Fytianos K.;Raikos N.;Voudrias E. .Modelling of phosphorus removal from aqueous and wastewater samples using ferric iron[J].Environmental Pollution,1998(1):123-130. |
| [17] | Francesca P;Sara M;Luigi T .[J].Water Research,2008,156:1-3. |
| [18] | Shukla A;Zhang Yuhui;Dubey P et al.[J].Journal of Hazardous Materials,2002,95(1-2):137. |
| [19] | Unnithan MR.;Vinod VP.;Anirudhan TS. .Ability of iron(III)-loaded carboxylated polyacrylamide-grafted sawdust to remove phosphate ions from aqueous solution and fertilizer industry wastewater: Adsorption kinetics and isotherm studies[J].Journal of Applied Polymer Science,2002(13):2541-2553. |
| [20] | Mustafa S;Zaman M I;Khan S .[J].Chemical Engineering Journal,2007,31:4. |
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