Preparation and Application of a Novel Functionalized Coconut Coir Pith as a Recyclable Adsorbent for Phosphate Removal

被引：16

作者：

Anirudhan, Thayyath S. ^{[1
]}

Rijith, Sreenivasan ^{[1
]}

Divya, Lekshmi ^{[1
]}

机构：

[1] Univ Kerala, Dept Chem, Trivandrum 695581, Kerala, India

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2009年 / 44卷 / 12期

关键词：

Adsorption isotherm; coir pith; graft copolymerization; phosphate; wastewater; AQUEOUS-SOLUTIONS; METAL-IONS; ADSORPTION; EQUILIBRIUM; PHOSPHORUS; SORPTION;

D O I：

10.1080/01496390903017899

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This study was to develop a new adsorbent, Iron(III) complex of an amino-functionalized polyacrylamide-grafted coconut coir pith (CP), a lignocellulosic residue, for the removal of phosphate from water and wastewater. The kinetics of adsorption follows a pseudo-second-order model. The equilibrium sorption capacity of 96.31 mg/g was determined at 30 degrees C from the Langmuir isotherm equation. Complete removal of 16.4 mg/L phosphate in 1 L of fertilizer industry wastewater was achieved by 1.5 g/L AM-Fe-PGCP at pH 6.0. The acid treatment (0.1M HCl) and re-introduction of Fe3+ lead to a reactivation of the spent adsorbent and can be reused through many cycles of water treatment and regeneration without any loss in the adsorption capacity.

引用

页码：2774 / 2796

页数：23

共 31 条

[1] Nutrient removal and sludge production in the coagulation-flocculation process [J].

Aguilar, MI ;

Sáez, J ;

Lloréns, M ;

Soler, A ;

Ortuño, JF .

WATER RESEARCH, 2002, 36 (11) :2910-2919

[2] Synthesis and characterization of polyacrylamide-grafted coconut coir pith having carboxylate functional group and adsorption ability for heavy metal ions [J].

Anirudhan, T. S. ;

Unnithan, M. R. ;

Divya, L. ;

Senan, P. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 104 (06) :3670-3681

[3] Arsenic(V) removal from aqueous solutions using an anion exchanger derived from coconut coir pith and its recovery [J].

Anirudhan, T. S. ;

Unnithan, Maya R. .

CHEMOSPHERE, 2007, 66 (01) :60-66

[4] Adsorptive characteristics of tannin removal from aqueous solutions and coir industry effluents using calcined and uncalcined hydrotalcites [J].

Anirudhan, Thayyath S. ;

Suchithra, Padmajan S. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (13) :4606-4613

[5] Phosphate removal from wastewaters using a weak anion exchanger prepared from a lignocellulosic residue [J].

Anirudhan, TS ;

Noeline, BF ;

Mancihar, DM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2006, 40 (08) :2740-2745

[6]

[Anonymous], 1992, STAND METH EX WAT WA

[7] Selective adsorption of phosphate from seawater and wastewater by amorphous zirconium hydroxide [J].

Chitrakar, Ramesh ;

Tezuka, Satoko ;

Sonoda, Akinari ;

Sakane, Kohji ;

Ooi, Kenta ;

Hirotsu, Takahiro .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 297 (02) :426-433

[8] Adsorption of phosphate ions on novel inorganic ion exchangers [J].

Chubar, NI ;

Kanibolotskyy, VA ;

Strelko, VV ;

Gallios, GG ;

Samanidou, VF ;

Shaposhnikova, TO ;

Milgrandt, VG ;

Zhuravlev, IZ .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2005, 255 (1-3) :55-63

[9] Comparative study of phosphates removal from aqueous solutions by nanocrystalline akaganeite and hybrid surfactant-akaganeite [J].

Deliyanni, E. A. ;

Peleka, E. N. ;

Lazaridis, N. K. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2007, 52 (03) :478-486

[10] Struvite formation, control and recovery [J].

Doyle, JD ;

Parsons, SA .

WATER RESEARCH, 2002, 36 (16) :3925-3940

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