PMID- 34749104 OWN - NLM STAT- MEDLINE DCOM- 20211208 LR - 20211214 IS - 1879-2448 (Electronic) IS - 0043-1354 (Linking) VI - 207 DP - 2021 Dec 1 TI - A novel zero-liquid discharge desalination system based on the humidification-dehumidification process: A preliminary study. PG - 117794 LID - S0043-1354(21)00988-X [pii] LID - 10.1016/j.watres.2021.117794 [doi] AB - As a byproduct of desalination plants, brine is increasingly becoming a threat to the environment, and the design of zero-liquid discharge (ZLD) systems is gaining increasing attention. Existing ZLD systems are limited by a high energy intensity and high plant costs of their crystallizers. This study proposes a novel crystallization method based on the humidification-dehumidification (HDH) process, which exhibits the advantages of a low energy consumption, low component costs and a reduced scaling and fouling potential. A simple experimental setup is first designed to demonstrate the feasibility of the proposed system. Brine concentration and salt crystallization are successfully achieved with air heated to 40 degrees C as the heat source. Afterwards, a thermo-economic analysis is conducted for the whole system. The specific thermal energy and electricity consumption levels are found to range from 700-900 and 5-11 kJ, respectively, per kg of feed brine. The energy consumption is 56% lower than that of a conventional evaporative crystallizer, and the initial plant cost is reduced by 58%. CI - Copyright (c) 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved. FAU - Chen, Qian AU - Chen Q AD - Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia. Electronic address: chen_qian@u.nus.edu. FAU - Akhtar, Faheem Hassan AU - Akhtar FH AD - Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia; Department of Chemistry and Chemical Engineering, Lahore University of Management Sciences (LUMS). DHA, Lahore 54792, Pakistan. FAU - Burhan, Muhammad AU - Burhan M AD - Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia. FAU - M, Kumja AU - M K AD - Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia. FAU - Ng, Kim Choon AU - Ng KC AD - Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia. Electronic address: kimchoon.ng@kaust.edu.sa. LA - eng PT - Journal Article DEP - 20211025 PL - England TA - Water Res JT - Water research JID - 0105072 RN - 451W47IQ8X (Sodium Chloride) SB - IM MH - Crystallization MH - Hot Temperature MH - Osmosis MH - Sodium Chloride MH - *Water Purification OTO - NOTNLM OT - Crystallization OT - Humidification-dehumidification OT - Zero-liquid discharge desalination EDAT- 2021/11/09 06:00 MHDA- 2021/12/15 06:00 CRDT- 2021/11/08 20:22 PHST- 2021/08/21 00:00 [received] PHST- 2021/10/11 00:00 [revised] PHST- 2021/10/20 00:00 [accepted] PHST- 2021/11/09 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/11/08 20:22 [entrez] AID - S0043-1354(21)00988-X [pii] AID - 10.1016/j.watres.2021.117794 [doi] PST - ppublish SO - Water Res. 2021 Dec 1;207:117794. doi: 10.1016/j.watres.2021.117794. Epub 2021 Oct 25.