Membrane distillation (MD) integrated with crystallization (MDC) for shale gas produced water (SGPW) treatment

Junghyun Kim, Heejung Kwon, Seockheon Lee, Sangho Lee, Seungkwan Hong

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Membrane distillation (MD), often integrated with crystallization (MDC), is an attractive treatment option for shale gas produced water (SGPW) because of its ability to handle high salinity as well as the inherent geothermal heat available to this process. To evaluate the feasibility of applying MD process for SGPW treatment, membrane fouling and wetting, which are barrier to its practical application, were systematically examined by varying organic and inorganic constituents, simulating the SGPW from Marcellus shale (USA). The liquid entry pressure (LEP) was first measured to predict the possibility of wetting by the chemical constituents of SGPW, and then a series of lab-scale MD and MDC experiments were performed to elucidate membrane wetting mechanisms. The results revealed that membrane wetting became more pronounced in the presence of oil and grease. The inorganic scaling induced by multivalent ions, such as barium and calcium in SGPW, also enhanced membrane wettability and led to poor permeate water quality. By integrating with crystallization, scalant loading was reduced properly and thus membrane wetting was mitigated effectively. As a result, adopting this MDC process increased total recovery up to 62.5%. Our experimental observations demonstrated that MD could be sustainably operated for SGPW treatment through optimized crystallization for scaling removal as well as effective pre-treatment for organic removal.

Original languageEnglish
Pages (from-to)172-178
Number of pages7
JournalDesalination
Volume403
DOIs
Publication statusPublished - 2017 Feb 1

Fingerprint

Crystallization
distillation
Water treatment
Distillation
water treatment
crystallization
membrane
Membranes
Wetting
wetting
Membrane fouling
Produced Water
Shale gas
shale gas
water
Lubricating greases
Barium
Shale
wettability
barium

Keywords

  • Membrane distillation (MD)
  • MEMBRANE distillation crystallization (MDC)
  • Membrane wetting and fouling
  • Recovery
  • Shale gas produced water (SGPW)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

Cite this

Membrane distillation (MD) integrated with crystallization (MDC) for shale gas produced water (SGPW) treatment. / Kim, Junghyun; Kwon, Heejung; Lee, Seockheon; Lee, Sangho; Hong, Seungkwan.

In: Desalination, Vol. 403, 01.02.2017, p. 172-178.

Research output: Contribution to journalArticle

Kim, Junghyun ; Kwon, Heejung ; Lee, Seockheon ; Lee, Sangho ; Hong, Seungkwan. / Membrane distillation (MD) integrated with crystallization (MDC) for shale gas produced water (SGPW) treatment. In: Desalination. 2017 ; Vol. 403. pp. 172-178.
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