International Journal of Advances in Engineering and Management (IJAEM) Volume 4, Issue 1 Jan 2022, pp: 134-140www.ijaem.net ISSN: 2395-5252 DOI: 10.35629/5252-0401134140 Impact Factor value 7.429 | ISO 9001: 2008 Certified Journal Page 134 Removal Of Lead From An Aqueous Solution Using River Sediment From Kashere, Gombe State, North Eastern Nigeria. Mausul Umar, kadir Aivada Haliru, Amina Doho, Muhammad Garba, Abdurrahman Abubakar. mausulumar@yahoo.com --------------------------------------------------------------------------------------------------------------------------------------- Submitted: 01-01-2022 Revised: 05-01-2022 Accepted: 10-01-2022 --------------------------------------------------------------------------------------------------------------------------------------- ABSTRACT The removal of lead by river sediment was done under laboratory stimulated condition and experimental parameters such as temperature, time, pH, concentration and dosage were carefully tested. pH of 7 was maintained and kinetics models such as pseudo first order and pseudo second order were applied and also isotherms like Longmuir and freundlich adsorption isotherms were used. The result of the experiment showed that the removal of lead followed pseudo second order due to highest value of correlative coefficient R 2 ranging from 0.9998. Also adsorption capacity of lead at equilibrium q e was high with value of 8.3700 in pseudo second order compared with 7.4664 of pseudo first order and the R 2 value of Langmuir is 0.9998 and value of R 2 from fruindlich 0.9424 which is lower than that of Langmuir and so the adsorption process followed Langmuir because it showed monolayer adsorption process due to the high value of R 2 . Keywords: Lead, sediments, Adsorption. I. INTRODUCTION Heavy metals are conventionally defined as metallic elements an atomic number greater than 20. The most common heavy metal contaminants are Cd, Cr, Cu, Hg, Pb, and Zn. It was reported by many authors that heavy metals are a term which applies to the group of metals and metalloids with atomic density greater than 4 g/cm3, or 5 times or more, greater than water (Duruibe, Ogwuegbu, & Egwurugwu, 2007). Lead is one the major metal ions hazardous to the human body through inhalation, skin contact or with diet, and can produce adverse effects on virtually every system in the body. Low levels of Pb(II) have been identified with anemia while high levels cause severe dysfunction of the kidneys, liver, the central and peripheral nervous system (Eren, 2009) The maximum concentration in drinking water standards identified by 0.05 mg. L−1 for lead (Bala, 2008). Several treatment processes are used for removing heavy metals from wastewater include reduction, precipitation, ion exchange, electrochemical reduction, and reverse osmosis (Annadurai, 2002) These processes are expensive, not eco-friendly, high power requirement, incomplete metal removal (Sabat, 2012). Adsorption technique is successively alternative process that utilized for removing heavy metals from industrial wastewater, which can be performed in batch mode or continuous process. Adsorption processes have offered flexibility in design and operation and in many cases will produce high-quality treated effluent. Also adsorption is sometimes reversible process, adsorbents can be reformed by the suitable desorption process therefore adsorption mostly method applied to remove metals (Fu.F, 2011). (Matei, G.M., Kiptoo, & O.A, 2015) Propose the use of carbon nanotube and Biosorption as absorbent for removing lead ions from waste water. Biosorption which applies biological materials, thus process can have considered as a relatively modern technology for removing even trace concentrations of heavy metals from wastewater (Matei, G.M., Kiptoo, & O.A, 2015) Agricultural and plant waste based by- products have good demonstrated bio-sorption potential for heavy metal ions (Gupta, 2015) CNTs as a good adsorbent have attracted increasing attention of many researchers because of their