In this investigation, rice shell (RS)-activated carbon (AC) - (RS-AC) is used as a bio-sorbent to reduce chemical oxygen demand (COD) and adsorb iron from effluent from an abattoir. With H3PO4, the rice husk was altered and chemically activated. Scan electron microscopy (SEM) as well as Fourier-Transform-Infrared (F-T-IR) were utilized to examine the activated RS and examine its content, appearance, and structure. Moreover, proximate analytical study was used to ascertain the activated rice husk's wetness, volatile matter, ash, bulk density, and fixed carbon contents. Contact period, temperature, and dosage are the adsorption parameters that are assessed. The contact period of 10, 20, 30, 40, 50, and 60 min, the dosage of 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6g, and the temperature of 20, 40, 60, 80, and 100oC were evaluated for the Fe bio-adsorption as well as COD limits reduction in wastewater obtained from abattoir at constant agitation of 200rmp and potential hydrogen level of 5 for all the runs. RS-AC can be used to maintain the amount of iron and COD in aqueous solutions and water treatment, according to the results. According to this investigation, ARH has a high fixed carbon content, which makes it an efficient bio-adsorbent, and the resulting RS-AC has a good bulk density for flow consistency. The FI-M best matches the linear equation for iron removal, whereas the LI-M given that the coefficient of correlation that well matches the equation to have COD limit at acceptable level. In comparison to other models, second ordered Kinetics model-SOKM satisfactorily describes current data to keep Fe as well as COD levels within standard ranges; as a result, chemical adsorption controls the bio-adsorption process.

The petroleum industry in Nigeria contributes a huge percentage to the national revenue of the country, to the extent that budgets are being passed based on the oil price dynamics. With the importance the petroleum sector has attained in Nigeria, it is expected that the country's pedagogy will reflect the value it contributes to the national table. However, reviews, surveys, and works of literature have shown otherwise. As a result, this study emphasizes the importance of petroleum engineering pedagogy in-country as an oil-producing country, the university curriculum of petroleum engineering in Nigeria was also examined (with a particular focus on the impact of poor curriculum on national development), and the dynamics between the university, industry and government were critically discussed and recommended practices for improving petroleum engineering pedagogy were made. This study targets national development and control over its own resources through a knowledge economy and seamless dynamics of information within the oil and gas industry. The Nigerian government, through the Federal Ministry of Education, is further expected to capitalize on the outcomes of this research for curriculum review of petroleum engineering and related courses offered in-country to foster sustainability in a competing global society.