Comparative Study of Cationic Dye Adsorption Using Industrial Latex Sludge with Sulfonate and Pyrolysis Treatment

Sustainability

Jiankun Sun¹  Heng Wei²  Rongzhan Liu²  Bin Zhang² 

[1] College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China;College of Textiles and Clothing, Qingdao University, Qingdao 266071, China;

关键词: industrial solid waste;    latex sludge;    sulfonate;    pyrolysis;    adsorption;    cationic dye;   

DOI  :  10.3390/su122310048

来源: DOAJ

【 摘 要 】

Industrial latex sludge as raw material was made into sulfonated latex sludge (SLS) and latex sludge active carbon (LSC) adsorbents by sulfonate and pyrolysis treatment to remove textile dye cationic blue X-GRRL from aqueous solution. The adsorption properties of SLS and LSC for X-GRRL were studied and compared by investigating the experimental parameters such as adsorbents dosage, pH, contact time and initial concentration. The kinetics of adsorption on SLS and LSC followed the pseudo-second-order kinetic model well. The adsorption isotherm and thermodynamic studies were further used to evaluate and compare the adsorption process of X-GRRL on SLS and LSC. The maximum adsorption capacities were 1219.6 mg/g for SLS and 476.2 mg/g for LSC according to the Langmuir model, respectively. These findings not only provide a sustainable strategy to turn industrial solid waste latex sludge into useful material for environment remediation, but also develop an efficient adsorbent for the treatment of dye wastewater.

【 授权许可】

Unknown