link to the ammonia tech: <a href="http://www.ohio.edu/outlook/05-06/video/128f-video1.cfm" target="_blank">http://www.ohio.edu/outlook/05-06/video/128f-video1.cfm</a> and here from wastewater: <a href="http://www.ohio.edu/outlook/05-06/video/128f-video4.cfm" target="_blank">http://www.ohio.edu/outlook/05-06/video/128f-video4.cfm</a> ammonia from waste, with NO cost for production...so they say ANYONE WHO HAS NOT DONE SO SHOULD WATCH THESE 4 VIDEOS!!!