A study on the applicability of adsorption desalination cum cooling cycles in zero liquid discharge process

J. Saththasivam, Young Deuk Kim, K. Thu, Kim Choon Ng

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Adsorption Desalination cum Cooling (ADC) process is a cost effective and environmental-friendly fresh water resource. In contrast to the conventional thermal desalination systems such as multi-stage flash (MSF) and multi-effect distillation (MED), the evaporation of feed water (seawater or brackish water) occurs at lower temperatures, typically from 5°C to 30°C. The salient advantages of the ADC cycle over the other desalination technologies are: (i) it can be powered by a low-temperature heat source, (ii) it has almost no major moving parts, (iii) it has low maintenance, (iv) it is environmental-friendly with lowest CO2 emission at 0.64 kg/m3 of water, 5 times lesser emission than a RO plant, and more than 10 times lesser with the MSF, (v) it utilizes zero chemicals in the pretreatment step and (vi) it can achieve high recovery ratio (over 80%). ADC cycles utilize the lowtemperature heat sources to perform simultaneous desalination and cooling power production, i.e., 8 to 22 m3 per day and 24 to 35 Rton per ton of silica gel. The implementation of adsorption-desorption principles to evaporation-condensation of seawater enables the AD cycles to achieve low specific energy consumption of 1.38 kWh/m3. In this study, it has been shown that AD cycle can be operated at higher feed salinity compared to conventional thermal- or membrane-based desalination technologies, thus could play a pertinent role in zero liquid discharge process.

Original languageEnglish
Publication statusPublished - Jan 1 2014
Externally publishedYes
Event7th Asian Conference on Refrigeration and Air Conditioning, ACRA 2014 - Jeju Island, Korea, Republic of
Duration: May 18 2014May 21 2014

Other

Other7th Asian Conference on Refrigeration and Air Conditioning, ACRA 2014
CountryKorea, Republic of
CityJeju Island
Period5/18/145/21/14

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Control and Systems Engineering
  • Mechanical Engineering

Cite this

Saththasivam, J., Kim, Y. D., Thu, K., & Ng, K. C. (2014). A study on the applicability of adsorption desalination cum cooling cycles in zero liquid discharge process. Paper presented at 7th Asian Conference on Refrigeration and Air Conditioning, ACRA 2014, Jeju Island, Korea, Republic of.