Adsorption of Cr (VI) oxyanions onto modified wood pulp

被引：33

作者：

Abdel-Halim, ES ^{[1
]}

Abou-Okeil, A ^{[1
]}

Hashem, A ^{[1
]}

机构：

[1] Natl Res Ctr, Text Res Div, Cairo, Egypt

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2006年 / 45卷 / 01期

关键词：

Cr (VI) oxyanion; wood pulp; adsorption isotherm;

D O I：

10.1080/03602550500373519

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new adsorbent was prepared from wood pulp (WP) after reaction with epichlorohydrin and dimethylamine in the presence of pyridine and N,N-dimethylformamide (DMF). The adsorption of Cr (VI) from aqueous solutions by the so-prepared wood pulp adsorbent (WP-A) was investigated. Various factors affecting adsorption, such as pH, adsorbent concentration (1-5 g/L), agitation time (5-60 min), and Cr (VI) concentration (50-700), were taken into consideration. The adsorption of Cr (VI) onto (WP-A) was found to be pH-dependent and maximum adsorption was obtained at pH 3. The adsorption data obeyed Langmuir and Freundlich adsorption isotherms. The Langmuir adsorption capacity (Q(max)) was found to be 588.24 mg/g. Freundlich constants, K-F and n, were found to be 55.03 and 2.835, respectively.

引用

收藏

页码：71 / 76

页数：6

相关论文

共 30 条

[1] Investigation of removal of Cr(VI), Mo(VI), W(VI), V(IV), and V(V) oxy-ions from industrial waste-waters by adsorption and electrosorption at high-area carbon cloth [J].

Afkhami, A ;

Conway, BE .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 251 (02) :248-255

[2] EVALUATION OF METABOLIC END-POINTS OF ACUTE CYTOTOXICITY IN V79-FIBROBLASTS [J].

ANDREOLI, T ;

DALDEGAN, B ;

DEANGELIS, I ;

FORTUNATI, E ;

REGGIANI, D ;

BIANCHI, V ;

TIOZZO, R ;

ZUCCO, F .

TOXICOLOGY IN VITRO, 1991, 5 (5-6) :549-553

[3] Cr(VI) removal from synthetic wastewater using coconut shell charcoal and commercial activated carbon modified with oxidizing agents and/or chitosan [J].

Babel, S ;

Kurniawan, TA .

CHEMOSPHERE, 2004, 54 (07) :951-967

[4] Studies on enhancement of Cr(VI) biosorption by chemically modified biomass of Rhizopus nigricans [J].

Bai, RS ;

Abraham, TE .

WATER RESEARCH, 2002, 36 (05) :1224-1236

[5] Comparative study of adsorption properties of Turkish fly ashes II. The case of chromium (VI) and cadmium (II) [J].

Bayat, B .

JOURNAL OF HAZARDOUS MATERIALS, 2002, 95 (03) :275-290

[6] EFFECT OF CHROMIUM ON SEED-GERMINATION, SEEDLING GROWTH AND YIELD OF PEAS [J].

BISHNOI, NR ;

DUA, A ;

GUPTA, VK ;

SAWHNEY, SK .

AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 1993, 47 (01) :47-57

[7] Adsorption of Cr(VI) on activated rice husk carbon and activated alumina [J].

Bishnoi, NR ;

Bajaj, M ;

Sharma, N ;

Gupta, A .

BIORESOURCE TECHNOLOGY, 2004, 91 (03) :305-307

[8] LIQUID MEMBRANE MULTIPLE EMULSION PROCESS OF CHROMIUM(VI) SEPARATION FROM WASTE-WATERS [J].

CHAKRAVARTI, AK ;

CHOWDHURY, AK ;

CHOWDHURY, SB ;

CHAKRABARTY, S ;

CHAKRABARTY, T ;

MUKHERJEE, DC .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1995, 103 (1-2) :59-71

[9] Selective adsorption of chromium(VI) in industrial wastewater using low-cost abundantly available adsorbents [J].

Dakiky, M ;

Khamis, M ;

Manassra, A ;

Mer'eb, M .

ADVANCES IN ENVIRONMENTAL RESEARCH, 2002, 6 (04) :533-540

[10]

El-Guendi MS., 1991, ADSORPT SCI TECHNOL, V8, P217, DOI DOI 10.1177/026361749100800404