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author:

Liu Minghua (Liu Minghua.) [1] | Zhou Hualong (Zhou Hualong.) [2] | Zhang Huaiyu (Zhang Huaiyu.) [3]

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EI Scopus SCIE

Abstract:

The study was conducted regarding the recovery of chromium(III) from chrome tanning wastewater by precipitation and adsorption processes. The adsorption was conducted with a spherical sulfonic lignin adsorbent, denoted as SSLA and the factors affecting the precipitation and adsorption as well as desorption were comprehensively discussed. The recovery reached 91.6% by applying 12.0g/L of sodium hydroxide as precipitant, 25mg/L of cationic polyacrylamide as flocculant and 3.0g/g Cr of H(2)SO(4) as solution medium. The adsorption of chromium(III) from the supernatant liquid with SSLA has been found to be initially pH and concentration dependent aided by higher adsorption temperature which helps to improve the adsorption capacity of SSLA. The breakthrough adsorption capacity of SSLA is 63.5mg/g, and the saturated adsorption capacity is 76.3mg/g. Moreover, the chromium(III) adsorbed on SSLA can be recovered with 1.0mol/L H(2)SO(4) solution, the recovery is approximately 99.6%. It has been proved from the cost analysis that the recovery of chromium(III) from the chrome tanning wastewater by precipitation and adsorption processes is a promising and economically feasible technique.

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Community:

  • [ 1 ] Fuzhou Univ, Coll Environm & Resources, Fujian 350002, Peoples R China
  • [ 2 ] Sichuan Univ, Key Lab Leather Chem & Engn, Minist Educ, Chengdu 610065, Peoples R China
  • [ 3 ] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China

Reprint 's Address:

  • 刘明华

    [Liu Minghua]Fuzhou Univ, Coll Environm & Resources, Fujian 350002, Peoples R China

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Source :

JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS AND CHEMISTS

ISSN: 0144-0322

Year: 2006

Issue: 5

Volume: 90

Page: 183-187

0 . 2 1 2

JCR@2006

0 . 3 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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