Comparison of air and steam stripping

removal of organic halogen compounds from process wastewaters

A. J. Toth, P. Mizsey

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In the engineering practice, there are two basic alternatives of physicochemical treatment for the removal of volatile compounds from process wastewaters: stripping with air or stripping with steam. In this work, these alternatives are investigated and compared in the case of a real industrial problem that is typical for the fine chemical industry and general conclusion is drawn. The removal of the organically bound halogens, called adsorbable organically bound halogens, is investigated. The two alternatives, air and steam stripping, are first modeled in the professional software environment of ASPEN Plus®. The model is validated on the data of an existing air stripper for the removal of organic halogens. Same organic halogens removal is applied for the design of a steam stripper. It is proved that the steam stripping shows better operability and economic performance than the air stripping; moreover, the volatile and/or adsorbable organically bound halogen compounds can be recovered in the distillate and they can be reused improving the sustainability.

Original languageEnglish
Pages (from-to)1321-1330
Number of pages10
JournalInternational Journal of Environmental Science and Technology
Volume12
Issue number4
DOIs
Publication statusPublished - 2015

Fingerprint

organic halogen compounds
Halogen compounds
halogens
Halogens
Steam
halogen
Waste Water
steam
wastewater
Wastewater
Air
air
Chemical Industry
Chemical industry
economic performance
chemical industry
Sustainable development
volatile compounds
engineering
Software

Keywords

  • Adsorbable organically bound halogens
  • ASPEN Plus
  • Cost estimation
  • Operability features
  • Pharmaceutical process wastewater
  • Stripping

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Environmental Chemistry
  • Environmental Engineering

Cite this

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abstract = "In the engineering practice, there are two basic alternatives of physicochemical treatment for the removal of volatile compounds from process wastewaters: stripping with air or stripping with steam. In this work, these alternatives are investigated and compared in the case of a real industrial problem that is typical for the fine chemical industry and general conclusion is drawn. The removal of the organically bound halogens, called adsorbable organically bound halogens, is investigated. The two alternatives, air and steam stripping, are first modeled in the professional software environment of ASPEN Plus{\circledR}. The model is validated on the data of an existing air stripper for the removal of organic halogens. Same organic halogens removal is applied for the design of a steam stripper. It is proved that the steam stripping shows better operability and economic performance than the air stripping; moreover, the volatile and/or adsorbable organically bound halogen compounds can be recovered in the distillate and they can be reused improving the sustainability.",
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