[Digestion] Sulphur levels

[parker dale]

You must add essential bio-available minerals, such as iron, etc. to bind the sulfides as they evolve to H2S which is toxic to methangenesis.

P. D. Dale
President
Bio-Organic Catalyst, Inc.
www.bio-organic.com
parker at bio-organic.com

917-833-1584 (cell)
800-432-5326 (office)
Skype: parkerdale

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Date: Wed, 27 Feb 2013 13:03:53 -0600
From: afal2906 at gmail.com
To: Digestion at bioenergylists.org
Subject: [Digestion] Sulphur levels

Hello everyone.We are in Mexico and we install units to generate electricity with biogas.To reduce the sulphur in the gas, we oxidyze it with good results, mainly.But there are are 3 sites, with extremely high sulphur levels (70, 10 and 5 k ppm!) with no results. The methane levels are OK for two sites (55-60%) and bad for one (45). If we increase the air injection, the level drops, with a little increase of oxygen in all sites.

The digesters are lagoon type and they receive cow manure.
Any suggestion is appreciated.
Regards,
-- 
Arturo


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