Removal of basic dyes from solution using coconut shell charcoal

Abstract

Abstract. This research aims to use agricultural waste as an adsorbent for dye removal from textile wastewater. Coconut shell charcoal (CSC), an agricultural waste, was used as dye adsorbent whilst basic yellow13 (BY13) and basic red14 (BR14) were used as representative dye used in textile manufactory. The removal of BY13 and BR14 from aqueous solution by CSC was investigated in batch adsorption at room temperature. Two parameters investigated in this research were pH of dyes solution; pH 2, 7, and 11, and particle size of adsorbents; 510-700 μm and 1000-2000 μm. The adsorption model, Langmuir and Freundlich were also examined. It was found that by CSC, BY13 and BR14 had maximum removal percentage of 23.6 and 55.7 at pH 11. Size of adsorbent had also shown the effect on dye removal, i.e.; increasing size with decreasing removal capability. The dye removal experimental data were fitted to Langmuir adsorption model for both dyes with maximum adsorption capacity (qm) for BY13 and BR14 of 19.76 and 22.93 mg/g, respectively. It can be implied that the adsorption is monolayer. It can conclude that CSC can be used as adsorbent for basic dye removal from aqueous solution.

Bioremediation of dyes using coconut parts via adsorption: a review

“…Coconut shell was the predominantly used part for the removal of dyes from the waste water. There are three ways to modify the coconut shell prior to the removal of dyes, namely activated carbon [39][40][41][42][43], acid or base treatment [44,45], and as immobilizer for the bacteria [46]. Table 1 summarizes the physical parameters, adsorption kinetic and equilibrium isotherm of the modified coconut shell.…”

“…The highest adsorption capacity is observed by the adsorption of 200.01 mg of Methylene Blue by 1 g of activated carbon prepared by using coconut shell modified by NaOH and hydrothermal treatments [42]. Subsequently, the research conducted by Srisorrachatr et al [43] Basic Yellow dyes, respectively for every gram of charcoal prepared by coconut shell procured from BK Black company [43]. Nonetheless, the only anionic type of dye that fits Langmuir isotherm model along with highest adsorption capacity can be observed by the adsorption of 22.727 mg of Amaranth Red by 1 g of dried coconut shell impregnated with H 3 PO 4 [45].…”

Methylene Blue Adsorption Kinetics Investigation by Coconut Shell Activated Carbon Adsorbent Using Fractional Power, Avrami and Bangham Models

“…Thus, variants of the coconut parts or its derivative have also been applied in several sorption processes involving CS. As such variants or derivative, one has shell [25], charcoal [26]- [27], choir [28]- [31], fiber (Al-Aoh et al, 2016; Zhang et al, 2018), AC [34]- [35], dreg [36], leaves [37]- [39], tree bark [40], spent grated coconut [41], coating/modifications [42]- [45], hydrochar [46], biochar [47] and additives [48]- [49]. In addition, the removal of other dye types from water had been examined using CS [50], [51].…”