Sorption and Desorption of Dyes by Sulfonated Coal

Removal of methyl orange and bromophenol blue dyes from aqueous solution using Sorel’s cement nanoparticles

“…However, its widespread use is restricted due to its high cost and its difficulties in removal from the sludge. Alternative adsorbents, including peat [18], plum kernels [19], wood [20], coal [21], resin [22], coir pith [23] and chitosan fibers [24], have been used with various industrial wastewaters. Many review papers were concerned with the removal of these dyes using different adsorbents [25][26][27][28][29][30].…”

Removal of Reactofix Navy Blue 2 GFN from aqueous solutions using adsorption techniques

“…In addition a number of nonconventional sorbents have been used for the removal of chemical pollutants, such as: peat [18,19], chitin [20], apple pomace, wheat straw [21], sulfonated coal [22], organomontmorillonite [23], coir pith [24], slag from the manufacture of steel [25] and activated slag from fertilizer plants [26]. Recently, Gupta and Ali [27] have reviewed the utility of low cost adsorbents for the removal of various pollutants including dyes.…”

Adsorption and kinetic studies of cationic and anionic dyes on pyrophyllite from aqueous solutions

“…There are very different studies on the use of low cost materials for removing dyes, such as various agricultural wastes [6][7][8][9], coal [10], lignite [11], sawdust [12], fuller's earth [13], chitosan [14], fly ash [15], recycled alum sludge [16], slag [17], calcined alunite [18], alumina and kaolinite [19], perlite [20], sepiolite [21], montmoril- lonite [22], saponite [23], zeolite [3], and raw and modified diatomite [24,25].…”