THE REMOVAL OF LINEAR ALKYL BENZENE SULPHONIC ACID (LABSA) FROM AQUEOUS SOLUTION ON BOTTOM ASH OBTAINED FROM COMBUSTION OF LOWER RANK LIGNITE COAL AS ADSORBENT
Citation
BALBAY, S., ACIKGOZ, C., & AKIN, S. D. THE REMOVAL OF LINEAR ALKYL BENZENE SULPHONIC ACID (LABSA) FROM AQUEOUS SOLUTION ON BOTTOM ASH OBTAINED FROM COMBUSTION OF LOWER RANK LIGNITE COAL AS ADSORBENT.Abstract
Linear alkyl benzene sulphonic acid (LABSA) is the major anionic surfactant material used in
detergent formulations so that it is frequently present in domestic and civil wastewater. Sulphate
can cause various kinds of problems depending on its concentration and on the earth alkaline
cation. Bottom ash is collected at the end of the grate in a Waste -to-Energy plant. It consists of
non-combustible materials, and is the residual part from the incineration of household and
similar waste. In this study, bottom ash (part of the non-combustible residue of lower rank lignite
coal combustion in a furnace), was used as an adsorbent for removal of Linear Alkyl Benzo
Sulfonic Acid(LABSA), from aqueous solution. LABSA has been adsorbed over under batch
measurements and adsorption process is monitored using UV spectrophotometer. Adsorbent
amount (0.1, 0.2 and 0.3 g/100ml), contact time (10-60 minute), PH (3-11) and temperature(20,
30 and 45 0C) were chosen as parameters. The absorption data obtained at various
temperatures were successfully applied to pseudo-first-order and pseudo-second-order models.
The study showed that bottom ash were efficient and low-cost adsorbents for removal of LABSA
from industrial effluents, domestic and civil wastewater.