|
|
|
|
optimization of pharmaceutical wastewater treatment using tiger nut and tio₂: a comparative study of photocatalytic degradation and adsorption efficiency
|
|
|
|
|
|
|
|
نویسنده
|
obasi daniel ebubechi ,ajayi moyosore fiyinfoluwa ,chimezie nathaniel nwoke ,afuape akinwunmi rapheal ,udoisoh moses godwin ,edun olaoluwa joseph ,ezeoma cynthia chidinma ,aiso stephen ubanioshave ,menankiti derrick tochukwu ,oluchukwu anyanwu goodluck ,akemu isaac ewhoyarure ,donatus uchechukwu divine ,allan-gyimah cynthia ,njoku chukwunonso ofili ,ojeniran josiah ifeoluwa
|
|
منبع
|
progress in chemical and biochemical research - 2025 - دوره : 8 - شماره : 1 - صفحه:1 -21
|
|
چکیده
|
This study delves into the photocatalytic degradation of pharmaceutical wastewater, employing tiger nut and titanium dioxide (tio2) as catalysts. the study aims to optimize treatment processes in both photocatalytic reactors and through adsorption in light-absent conditions. a systematic experimental approach varied catalyst dosage (0.5 g/l to 3.0 g/l), ph (4 to 11), and contact time (30 to 100 minutes), with a consistent flow rate of 120 rpm and uv intensity set at 450w. optimal conditions for photocatalytic degradation were found at 3.0 g/l catalyst dosage, ph 4-, and 100-minutes contact time, resulting in a 95.41% reduction in chemical oxygen demand (cod). in contrast, adsorption peaked at 1.75 g/l catalyst dosage, ph 4.0, and 100 minutes contact time, slightly outperforming photocatalysis with a 95.50% cod reduction. the adsorption method demonstrated superior efficiency, confirmed by higher degradation rates. kinetic analysis favoured the pseudo second-order kinetics model (r2 = 0.9908) for adsorption data, surpassing pseudo first-order and intra-particle diffusion models.
|
|
کلیدواژه
|
wastewater ,optimization ,tiger nut ,photocatalysis ,adsorption efficiency
|
|
آدرس
|
university of ibadan, department of medicine and surgery, nigeria, olabisi onabanjo university, department of chemistry, olabisi onabanjo, nigeria, federal university of technology, department of environmental management, nigeria, north carolina a&t university, department of biochemistry, usa, university of port harcourt, department of mechanical engineering, nigeria, ladoke akintola university of technology, department of chemical engineering, nigeria, nnamdi azikiwe university, department of food science and technology, nigeria, university of lagos, department of chemical engineering, nigeria, chukwuemeka odumegwu ojukwu university, department of chemical engineering, nigeria, teesside university, school of health and life sciences, department of bioinformatics, usa, federal university of petroleum resources effurun, department of chemical engineering, nigeria, chukwuemeka odumegwu ojukwu university, department of chemical engineering, nigeria, university of mines and technology, department of environmental engineering, niger, university of uyo, department of chemical engineering, nigeria, federal university of technology, department of agricultural and bioresources engineering, nigeria
|
|
پست الکترونیکی
|
ojeniranjosiah@gmail.com
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|