SUGARCANE BAGASSE ADSORPTION EVALUATION AND APPLICATION ON BOD AND COD REMOVAL FROM TEXTILE WASTEWATER TREATMENT

REMOVAL OF MANGANESE CATIONS AS A TYPE OF HEAVY METALS FROM CONTAMINATED AQUEOUS SOLUTIONS USING AGRICULTURAL WASTE: WATERMELON RINDS AS A CASE STUDY

Journal: Water Conservation and Management (WCM)
Author: Hawraa Ali Hashim, Nazar Munem Abdalsahib, Younus Mohammed Abed, Zahraa A. Alwitry, Mohammed Nsaif Abbas
Print ISSN : 2523-5664
Online ISSN : 2523-5672

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Doi: 10.26480/wcm.01.2026.87.94

ABSTRACT

The study investigated the removal of divalent manganese (Mn2+) cations using watermelon rinds, as a lowcost adsorbent, in a batch-type adsorption system under different ranges of the most important operating conditions affecting the adsorption process, which included pH, contact time, initial concentration of divalent manganese ions (Mn2+), agitation rate, temperature, and adsorbent dosage. The operating factor values varied between 1-10, 5-180 minutes, 1-40 ppm, 100-500 rpm, 25-50°C, and 0.5-7 g, respectively. The results obtained indicated that a dose of 6.5 g of Iraqi virgin watermelon rinds successfully treated solutions contaminated with divalent manganese (Mn2+) cations by 81.4% in 150 minutes, at the highest temperature, with an agitation speed of 400 rpm, and a pH of 8.