eprintid: 15218 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/52/18 datestamp: 2023-11-10 03:29:50 lastmod: 2023-11-10 03:29:50 status_changed: 2023-11-10 01:58:56 type: article metadata_visibility: show creators_name: Mazli, W.N.A. creators_name: Samsuri, S. creators_name: Amran, N.A. creators_name: Yáñez, E.H. title: Optimization of progressive freezing on synthetic produced water by circular moving cylindrical crystallizer via response surface methodology ispublished: pub note: cited By 4 abstract: Treatment and disposal are two main approaches for water cycle management in the oil and gas industry. Freeze concentration has been identified as one of the methods to separate water from wastewater samples. The conventional method used for solution movement in progressive freezing technique is stirring by a stirrer. However, the stirrer requires frequent maintenance as it needs to be cleaned and requires longer cleaning time due to the complex structure of a stirrer. Thus, the new solution movement for progressive freezing is proposed, which is circular moving progressive freezing. This study aims to remove water from the wastewater sample (i.e., produced water). To optimize and investigate the effect of coolant temperature, freezing time and rotation speed, response surface methodology (RSM) was applied to determine the efficiency of the process and central composite design (CCD) was used to design the experiment. From the results, the optimum parameters were determined at the freezing time of 22.79 min, coolant temperature of �14.89�C and rotation speed of 59 rpm. To evaluate the accuracy of the optimization process, a validation experiment was performed and water removal value of 89.67 was achieved. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. date: 2021 publisher: MDPI AG official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100514800&doi=10.3390%2fcryst11020103&partnerID=40&md5=a6d63b379070b03a0ef457495a84f44d id_number: 10.3390/cryst11020103 full_text_status: none publication: Crystals volume: 11 number: 2 pagerange: 1-13 refereed: TRUE issn: 20734352 citation: Mazli, W.N.A. and Samsuri, S. and Amran, N.A. and Yáñez, E.H. (2021) Optimization of progressive freezing on synthetic produced water by circular moving cylindrical crystallizer via response surface methodology. Crystals, 11 (2). pp. 1-13. ISSN 20734352