REMOVAL OF HYDROGEN SULFIDE FROM SOUR GASES USING A LOW-COST REUSABLE ADSORBENT MEDIA

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

Virtually every wastewater treatment plant, and many industries, produce off-gas which is high in hydrogen sulfide (H2S) concentration. Because of its toxic, odorous, corrosive nature, reduction 2 of H2S concentration in such gases is desirable. The objective of the research described in this 2 paper was to develop an adsorptive media with a performance exceeding that of existing media, capable of repeated regeneration, and low in cost.

A filter media was prepared, consisting of a natural mineral, calcined to increase hardness, porosity, and surface area, with an iron oxide coating applied. Bench-scale testing in miniature filter columns showed the media capable of treating gas with an H2S concentration as high as 30,000 ppm, reducing this to less than 1 ppm.. Optimum performance was obtained with a contact time of 60 seconds and a linear velocity of 5 ft/s through the filter.

The media was regenerated by blowing air through the filter. Color change from orange/red to black as the media became saturated with H2S, and back to orange/red as it was regenerated, 2 provided a useful visual indicator of the status of the media. Through the course of 15 regenerations and re-uses, the media adsorbed over 50% of its weight in H2S.

A demonstration-scale plant was installed at a waste water treatment facility for three months, treating over 350,000 litres (12,000 ft3) of gas with 60–100 ppm H2S, providing reduction to less than 1 ppm.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702785140500

Publication date: January 1, 2002

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more