چکیده مقاله
The volume of oil contaminated wastewater generated from petrochemical industries and various oil fields is increasing rapidly The discharge of such oily wastewater endangers terrestrial and aquatic ecosystems due to the high organic load and toxicity of the oily components Currently, there are several technologies available for the treatment of oily wastewater among which adsorption was observed to be a promising technique for the removal of oil emulsions from wastewater In this study, adsorption of oily wastewater was investigated using different types of adsorbents namely, modified acid pyrolyzed date seed APD and base pyrolyzed date seed BPD based adsorbents The effects of pH, oil dose, temperature, and contact time were investigated for all the adsorbents The results of the study showed that the percentage of oil removal increased with increasing contact time It was observed that base modified activated date seed resulted in 83% removal of oil Both APD and BPD showed a high percentage removal of 92 9 % and 94 3 % respectively at a lower acidic pH of 2 The adsorption of oily wastewater onto both APD and BPD is consistent with the pseudo second order kinetic model The Langmuir isotherm is more accurate to represent sorption by APD whereas Freundlich isotherms were found to better fit the adsorption equilibrium data for BPD
کلیدواژهها
نویسندگان
AL-AJMI Muna
Engineering Department, International Maritime College Oman, Suhar, Oman
Ahoud Al Hamadani
Engineering Department, International Maritime College Oman, Suhar, Oman
Anteneh Mesfin Yenenh
Engineering Department, International Maritime College Oman, Suhar, Oman
Tahereh Jafary
Engineering Department, International Maritime College Oman, Suhar, Oman
شیوه ارجاع
Muna, AL-AJMI and Al Hamadani, Ahoud and Mesfin Yenenh, Anteneh and Jafary, Tahereh,1401,Comparative Investigation of the removal of oil from contaminated wastewater using thermo-chemically modified lignocellulosic biomass,The 1st National Conference on Environmental Challenges: Green Industry and Mining,Tehran
ارائهشده در
مجموعه مقالات نخستین کنفرانس ملی چالش های محیط زیست: صنعت و معدن سبز28 اردیبهشت 1401 · تهران