Preparation and characterization of activated carbon produced from tannery solid waste applied for tannery wastewater treatment

被引：0
作者：
Bianca Mella
Jaqueline Benvenuti
Renata F. Oliveira
Mariliz Gutterres
机构：
[1] Federal University of Rio Grande do Sul (UFRGS),Laboratory for Leather and Environmental Studies (LACOURO), Chemical Engineering Post
[2] Federal University of Rio Grande do Sul (UFRGS),Graduated Program (PPGEQ)
[3] Lutheran University of Brazil (ULBRA),Chemical Engineering Post
来源：
Environmental Science and Pollution Research | 2019年 / 26卷
关键词：
Activated carbon; Adsorption; Dye; Leather solid waste; Tannery wastewater;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The removal of toxic compounds (azo dyes) from dyeing wastewater was investigated by an environmentally friendly activated carbon produced from solid waste generated in the tannery process, the cattle hair (CHW), activated with H3PO4 (AC-CHW), suggesting a life cycle extension for this material from leather processing. Preliminary tests with aqueous solutions containing Acid Brown 414 (AB-414) and Acid Orange 142 (AO-142) removed 71.06% and 73.05%, respectively. The activated carbon was characterized by zeta potential (ZP), functional groups (FTIR), elemental composition, sorbent specific surface area, and pore size distribution (BET/BJH). The specific surface area showed low values when compared to commercial activated carbon, but average pore diameter was higher, which facilitates the adsorption of larger and complex molecules, such as those present in real wastewaters. Through SEM and FTIR, the presence of the toxic compounds studied in the AC-CHW after sorption process was observed, where the results indicated that the functional groups of -CH=CH- participated in the removal process for these compounds. The removal efficiency obtained with AC-CHW was 51.94% and 49.73% for the dyeing wastewater containing AB-414 and AO-142, respectively. The obtained results open a promising via to use AC-CHW as efficient eco-friendly sorbent for the treatment of leather wastewater.
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页码：6811 / 6817
页数：6
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  • [1] Alvarez J(2014)Upgrading the rice husk char obtained by flash pyrolysis for the production of amorphous silica and high quality activated carbon Bioresour Technol 170 132-137
  • [2] Lopez G(2015)Environmentally friendly hide unhairing: enzymatic-oxidative unhairing as an alternative to use of lime and sodium sulfide Proc Saf Env Protec 93 9-17
  • [3] Amutio M(2011)Adsorption of Brilliant Red 2BE dye from water solutions by a chemically modified sugarcane bagasse lignin Chem Eng J 168 620-628
  • [4] Bilbao J(2016)Modified pineapple peel cellulose hydrogels embedded with sepia ink for effective removal of methylene blue Carbohydr Polym 148 1-10
  • [5] Olazar M(2013)Nano-silica fabricated with silver nanoparticles: antifouling adsorbent for efficient dye removal, effective water disinfection and biofouling control Nanoscale 5 5549-5560
  • [6] Andrioli E(2016)Characteristics and adsorption capacities of low-cost sorbents for wastewater treatment: a review Sustain Mater Technol 9 10-40
  • [7] Petry L(2017)Equilibrium, kinetic and diffusion mechanism of Cr(VI) adsorption onto activated carbon derived from wood apple shell Arab J Chem 10 S252-1479
  • [8] Gutterres M(2014)New carbon composite adsorbents for the removal of textiles dyes form aqueous solutions: kinetic, equilibrium and thermodynamic studies Korean J Chem Eng 31 1470-123
  • [9] da Silva LG(2013)Chromium (VI) removal from aqueous system using Helianthus annuus (sunflower) stem waste Langmuir 19 731-403
  • [10] Ruggiero R(2016)Optimum BET surface areas for activated carbon produced from textile sewage sludges and its application as dye removal J Environ Manag 166 116-145
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