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<body class='hmmessage'><div dir='ltr'>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.<br><br><b>P. D. Dale<br>President<br>Bio-Organic Catalyst, Inc.<br>www.bio-organic.com<br>parker@bio-organic.com<br><br>917-833-1584</b> <b>(cell)<br>800-432-5326 (office)<br>Skype: parkerdale<br></b><br><b><i><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black" lang="DE">This transmission is confidential and intended solely for the
person or organization to whom it is addressed. It may contain privileged and
confidential information. If you are not the intended recipient, you should not
copy, distribute or take any action in reliance on it. If you have received
this transmission in error, please notify us immediately by email.</span></i></b><br><br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">Date: Wed, 27 Feb 2013 13:03:53 -0600<br>From: afal2906@gmail.com<br>To: Digestion@bioenergylists.org<br>Subject: [Digestion] Sulphur levels<br><br>Hello everyone.<div>We are in Mexico and we install units to generate electricity with biogas.</div><div>To reduce the sulphur in the gas, we oxidyze it with good results, mainly.</div><div>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.</div>
<div><br></div><div>The digesters are lagoon type and they receive cow manure.</div><div><br></div><div>Any suggestion is appreciated.</div><div><br></div><div>Regards,<br clear="all"><div><br></div>-- <br>Arturo
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