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conferenceseries.com
Volume 3, Issue 2 (Suppl) Ind Chem
ISSN: 2469-9764, ICO an open access journa Industrial Chemistry 2017
May 22-23, 2017
May 22-23, 2017 Las Vegas, USA
2nd World Conference on
Industrial Chemistry and Water Treatment
Ind Chem 2017, 3:2 (Suppl)
Modified LD slag as low cost adsorbent for treatment of phenolic wastewater from steel plant
Amar Nath Samanta, Chayan Sarkar and Jayanta K Basu
IIT Kharagpur, India
Water pollution is a very serious environmental issue across the globe. Presence of phenol in water is one of the major
reasons for water pollution due to its various harmful effects. Consumption of polluted water, mainly by phenol even at
its low concentration is very dangerous to human body. It affects human body severely by causing damages to central nervous
system, kidney, liver and pancreas etc. In this work, LD slag, a byproduct of steel making industries, has been modified as low
cost adsorbent for removing phenol through adsorption. The modified LD slag has been prepared by acid treatment followed
by microwave heating activation. Box Behnken design (BBD) in response surface methodology has been applied to understand
the effect of operating variables e.g. acid concentration (0.2-1 N of HCl), microwave radiation time (2-10 minutes) and power
(240-1200 W), in the modification of adsorbent for the adsorption of phenol and the effect of microwave radiation time and
acid concentration. Optimum conditions of these significant parameters involved in preparation of modified LD slag are
obtained through optimization with the help of Design Expert 7.0 software. The adsorbent has been characterized by using
XRF technique, BET apparatus and SEM images. The BET surface area of the modified LD slag is obtained as 81.18 m2/g. Batch
experiments for the adsorption study have been conducted at different temperatures (30 ºC, 40 º C & 50 º C). Langmuir model fits
the experimental data with the maximum adsorption uptake of phenol, onto modified LD slag, as 3.4 mg/g and at a pH value
of 6. The adsorption kinetics is fitted well to pseudo-second-order model. Thermodynamic analysis proves that the adsorption
process is spontaneous in nature and it is an enthalpy driven process (∆H_0=-4.51 kJ/mol)
Quality assessment of groundwater from Avenorfeme, Akatsi district, Ghana
B V Samlafo1, L H Bobobee1, E Quarshie2, L A Sarsah2 and E A Kaka2
1University of Education-Winneba, Ghana
2Ghana Atomic Energy Commission, Ghana
Aholistic assessment of the quality of groundwater from the shallow unconfined aquifers of the Avenorfeme and surrounding
villages in the Akatsi south district in the Volta region of Ghana has been conducted. A groundwater classification scheme
has been developed for groundwater in the area using a robust water quality index (WQI) modified for the case of the study area.
For calculating the WQI, pH, sodium, potassium, calcium, magnesium, bicarbonate, chloride, nitrate, sulfate, total dissolved
solids, and fluorides have been considered. On the basis of the WQI so computed, groundwater fell within the excellent, good,
poor and unsuitable for drinking categories. This study finds that the salinity of groundwater in the area is largely attributed
to mineral weathering leading to evolution of predominantly intermediate to high salinity NaCl water types. On account of
salinity hazard, most of the waters are not suitable for irrigation in the area. Based on total hardness, the groundwater in the
area is permanently hard.