Biochars from animal wastes as alternative materials to treat colored effluents containing basic red 9

被引：53

作者：

Cortes, L. N. ^{[1
]}

Druzian, S. P. ^{[1
]}

Streit, A. F. M. ^{[1
]}

Godinho, M. ^{[2
]}

Perondi, D. ^{[2
]}

Collazzo, G. C. ^{[1
]}

Oliveira, M. L. S. ^{[3
,4
]}

Cadaval Jr, T. R. S. ^{[5
]}

Dotto, G. L. ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Chem Engn Dept, UFSM, Roraima Ave 1000, BR-97105900 Santa Maria, RS, Brazil

[2] UCS, 1130 Francisco Getulio Vargas St, BR-95070560 Caxias Do Sul, RS, Brazil

[3] Univ Costa, Dept Civil & Environm, Calle 58 55-66, Barranquilla 080002, Atlantico, Colombia

[4] Fac Merid IMED, BR-99070220 Passo Fundo, RS, Brazil

[5] Fundacao Univ Fed Rio Grande, Sch Chem & Food, Km 8 Italia Ave, BR-96203900 Rio Grande, RS, Brazil

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2019年 / 7卷 / 06期

关键词：

Adsorption; Biochar; Bovine bone; Fish scale; Fuchsine; ACTIVATED CARBON; BONE CHAR; AQUEOUS-SOLUTION; SPIRULINA SP; AZO-DYE; ADSORPTION; PYROLYSIS; REMOVAL; ADSORBENT; OPTIMIZATION;

D O I：

10.1016/j.jece.2019.103446

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Bovine bones (BB) and fish scales (FS) were used as alternative precursors to produce biochars, which in turn, were applied for the removal of Basic Red 9 (BR9) from aqueous solutions. BB and FS were pyrolyzed generating a solid (biochars), a liquid (pyrolytic oils) and a gas fraction. All fractions were characterized to evaluate the pyrolysis process. The biochars presented different functional groups and a mesoporous structure with surface areas around 90 m(2)g(-1). Both biochars demonstrated potential to adsorb BR9, with maximum adsorption capacities of 49.5 (BB-biochar) and 52.3 mg g(-1) (FS-biochar). Pyrolytic oils were composed mainly by palmitic acid (BB) and imidazolidinedione (FS), which are compounds with biological and antioxidant activity. Pyrolysis of BB generated CO2 while pyrolysis of FS generated H-2. In summary, bovine bones and fish scales are promising precursors to concomitantly produce biochars with great adsorbent potential and oils with interesting characteristics.

引用

页数：10

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