Density of water gcm34/14/2024 Īsaithambi P, Yesuf MB, Govindarajan R, Selvakumar P, Niju S, Pandiyarajan T et al (2023) Industrial wastewater treatment using batch recirculation electrocoagulation (BRE) process: studies on operating parameters. Īrab M, Faramarz MG, Hashim K (2022) Applications of computational and statistical models for optimizing the electrochemical removal of cephalexin antibiotic from water. Īmmar SH, Akbar AS (2018) Oilfield produced water treatment in internal-loop airlift reactor using electrocoagulation/flotation technique. Graphical AbstractĪl-Shannag M, Al-Qodah Z, Alananbeh K, Bouqellah N, Assirey E, Bani-Melhem K (2014) Cod reduction of baker’s yeast wastewater using batch electrocoagulation. The model presented and rate constants determined in the study will provide a theoretical basis for designing, scaling up and operating the EC reactor for oil-field PW treatment. Under different operating conditions considered in the study, the model also predicted the COD removal performance of the EC reactors at different reactor volumes with R 2 value of 0.96 for higher solution volume and larger reactor. The mathematical model and the experimental results showed the role of dominant Al-hydroxy complex species such as \(\) in controlling the COD removal process. The simulated results reproduced a good fit at initial pH of 6.1, 7.3 and 8.6 with R 2 value of 0.92, 0.96 and 0.98, respectively for COD removal. The mathematical model prediction of COD removal fits well with the experimental data at 10 mA cm −2, 15 mA cm −2 and 20 mA cm −2 current density with R 2 value of 0.96, 0.97 and 0.92, respectively and for dissolved Al concentration R 2 value of 0.96, 0.99, and 0.97, respectively. The study estimates the rate constants of the reactions taking place for COD removal by EC process and by comparing their magnitudes identifies the dominant reactions and coagulant species involved in the process. The influence of working parameters such as current density, initial pH, interelectrode distance, mixing speed and solution volume of PW on Al coagulant production and COD removal was investigated and modelled. The present model considers and identifies the dominant Al-hydroxy complex species and their contribution to the COD removal from synthetic PW samples by estimating their rate constants and comparing their magnitudes and investigates multi-scale modelling of the EC reactor. In this work, a comprehensive mathematical model has been developed to elucidate the role of EC operating parameters on the PW treatment performance and determine the mechanism for COD (Chemical Oxygen Demand) removal. Electrocoagulation (EC) is an effective treatment method to remove pollutants from PW which has been the focus of many experimental studies however, a mathematical model specifically for PW treatment by EC has not been developed yet. PW contains high-salt concentration along with other organic and inorganic components therefore, PW must be treated before disposal. Produced water (PW) is the largest by-product that comes out of the oil wells during oil and gas (O&G) field exploration.
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