Carbonization of sludge biomass of water treatment plant using continuous screw type conveyer pyrolyzer for methylene blue removal

Abstract The wide and fast growth of the textile industry has become one of the contributors to the water pollution. In this study, carbonized sludge (CS) was produced as an adsorbent for removal of methylene blue (MB) dye from aqueous solution. Sludge biomass from water treatment plant as precursor...

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Published inIOP conference series. Earth and environmental science Vol. 765; no. 1; pp. 12112 - 12120
Main Authors Ahmad, M A, Yusop, M F M, Awang, S, Yahaya, N K E.M., Rasyid, M A, Hassan, H
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2021
Subjects
Adsorption
Aqueous solutions
Biomass
Conveying
Diffusion rate
Methylene blue
Sludge
Sludge treatment
Textile industry
Water pollution
Water treatment
Water treatment plants
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Summary:Abstract The wide and fast growth of the textile industry has become one of the contributors to the water pollution. In this study, carbonized sludge (CS) was produced as an adsorbent for removal of methylene blue (MB) dye from aqueous solution. Sludge biomass from water treatment plant as precursor was carbonized using continuous screw type conveyer pyrolyzer at different conveyer frequency of 5 Hz and 10 Hz. Batch adsorption studies were carried out by varying MB initial concentrations (25 - 300 mg/L) and contact time (0 - 24 hours). The CS5Hz sample shows the highest surface area and total pore volume of 88.73 m 2 /g and 0.1417 cm 3 /g, respectively. This sample exhibits average pore diameter of 3.84 nm, monolayer adsorption capacity of 45.68 mg/g and well develop of pores structure. Freundlich and pseudo second order models were revealed to fit the isotherm and kinetic data, respectively with film diffusion play a major role as rate limiting step.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/765/1/012112