Biochar from oil cakes: an efficient and economical adsorbent for the removal of acid dyes from wool dye house effluent

2022 ◽  
Author(s):  
Seiko Jose ◽  
Reena Roy ◽  
Ava Rani Phukan ◽  
Dinesh Babu Shakyawar ◽  
Anuradha Sankaran
Keyword(s):  
Acid Dyes ◽  
Oil Cakes

scholarly journals Biochar from Oil Cakes: An Efficient Adsorbent for the Removal of Acid Dyes From Wool Dye House Effluent

2021 ◽  
Author(s):  
seiko jose ◽  
Reena Roy ◽  
Ava Phukan ◽  
Dinesh Shakyawar ◽  
Anuradha Sankaran
Keyword(s):  
Chemical Activation ◽  
Kinetic Studies ◽  
Color Removal ◽  
Mustard Oil ◽  
Partial Replacement ◽  
Batch Adsorption ◽  
Textile Dye ◽  
Acid Dyes ◽  
Oil Cakes ◽  
Low Temperature Pyrolysis

Abstract Textile dyeing industries are one of the major culprits for environmental pollution. The industries are adopting various processes for the removal of dyes and chemicals from the effluent before disposing to the land or water bodies. In the reported study, biochars were prepared from almond, coconut, and mustard oil cakes by chemical activation with phosphoric acid followed by low temperature pyrolysis. The ball milling technique was employed to reduce the particle size of the biochars below 300 nm. The synthesized biochars were used for the removal of color from the acid dye effluent from the wool dyeing unit. The results showed that very small quantities (2.0 %) of biochars are sufficient to remove around 92% color from the dye effluent. The batch adsorption and kinetic studies indicate the highest efficiency of color removal for the biochar derived from almond oil cake, followed by mustard and coconut. The adsorption properties of the synthesized biochars were found to be greatly depending on the type of oil cake used. It is concluded that the biochars produced from the oil cakes may be a partial replacement of petroleum based activated carbon for the color removal from wool textile dye effluent.

scholarly journals Oil Cakes: Non-Conventional, Effective and Low-Cost Adsorbents for Removal of Acid Dyes from Aqueous Solution

2016 ◽  
Vol 28 (5) ◽  
pp. 1087-1096
Author(s):  
Neha Pandey ◽  
Somi Ali ◽  
Mrudula Pulimi ◽  
Sangeetha Subramanian
Keyword(s):  
Aqueous Solution ◽  
Low Cost ◽  
Acid Dyes ◽  
Oil Cakes

A Study on the Use of Bipolar-Particles-Electrodes in Decolorization of Dyeing Effluents and Its Principle

1987 ◽  
Vol 19 (3-4) ◽  
pp. 391-400 ◽  
Author(s):  
Zhou Ding ◽  
Cai Wei Min ◽  
Wang Qun Hui
Keyword(s):  
Energy Consumption ◽  
High Efficiency ◽  
Low Energy ◽  
Acid Dyes ◽  
Underlying Principle ◽  
Low Energy Consumption ◽  
Transparent Liquid

This paper studies the use of bipolar-particles-electrodes in the decolorization of dyeing effluents. Treatment of highly colored solutions of various soluble dyes (such as direct, reactive, cationic or acid dyes) and also samples of dyeing effluents gave rise to an almost colorless transparent liquid, with removal of CODcr and BOD5 being as high as over 80%. The method is characterized by its high efficiency, low energy consumption and long performance life. A discussion of the underlying principle is given.

Biorefining of seed oil cakes as industrial co-streams for production of innovative bioplastics. A review

2021 ◽  
Vol 109 ◽  
pp. 259-270
Author(s):  
Seyedeh Fatemeh Mirpoor ◽  
C. Valeria L. Giosafatto ◽  
Raffaele Porta
Keyword(s):  
Seed Oil ◽  
Oil Cakes

Removal of acid dyes from aqueous solution using potato peel waste biomass: a kinetic and equilibrium study

2013 ◽  
Vol 52 (25-27) ◽  
pp. 4999-5006 ◽  
Author(s):  
Edris Hoseinzadeh ◽  
Mohammad-Reza Samarghandi ◽  
Gordon McKay ◽  
Naser Rahimi ◽  
Javad Jafari
Keyword(s):  
Aqueous Solution ◽  
Waste Biomass ◽  
Potato Peel ◽  
Acid Dyes ◽  
Equilibrium Study

scholarly journals Synthesis of Novel Crosslinked Chitosans with a Higher Fatty Diacid Diglycidyl and Their Adsorption Abilities towards Acid Dyes

2003 ◽  
Vol 21 (5) ◽  
pp. 439-449 ◽  
Author(s):  
Yoshiaki Shimizu ◽  
Atsushi Taga ◽  
Hitoshi Yamaoka
Keyword(s):  
Chemical Structure ◽  
Crosslinking Agent ◽  
Considerable Extent ◽  
Degree Of Substitution ◽  
Acid Orange 7 ◽  
Acid Dyes ◽  
Ph Values ◽  
Crosslinked Chitosan ◽  
Adsorbent Materials ◽  
Dye Molecule

Novel chitosan-based adsorbent materials with a higher fatty diacid diglycidyl as the crosslinking agent were synthesized and the adsorption abilities of the resulting polymers evaluated towards typical acid dyes. The successful formation of a crosslinked structure was confirmed via infrared spectroscopic measurements and the solubility of the polymer towards 10% aqueous solutions of acetic and formic acids determined. At higher dye concentrations, the adsorption abilities of the crosslinked chitosan towards hydrophilic CI Acid Orange 7 and CI Acid Red 1 increased with decreasing degree of substitution. However, at lower dye concentrations, the crosslinked chitosan with the lowest degree of substitution exhibited the lowest adsorption capability. With such hydrophilic acid dyes, the extent of adsorption decreased significantly as the pH of the solution increased. On the other hand, CI Acid Red 138, which contains a dodecyl group in the chemical structure, was adsorbed to a considerable extent even at higher pH values, suggesting hydrophobic interaction between the alkyl group in the dye molecule and the hydrophobic crosslinker.

Sign in / Sign up

Export Citation Format

Share Document