Sarah, Kodak has guidelines that can get you started. Go to:http://www.kodak.com/global/en/service/faqs/faq5026.shtml<http://www.kodak.com/global/en/service/faqs/faq5026.shtml> Also there is a paper on various methods of removing silver from spent chemical. http://imaging.kodakalaris.com/sites/local/files/wysiwyg/RecoveringSilver.pdf The biggest problem is used bleach in reversal processing . Most bleaches contain chromium, a heavy metal, and should be properly disposed of as hazardous waste. Hope that helps On Aug 28, 2016, at 7:31 AM, Sarah Bliss <bl...@sarahblissart.com<mailto:bl...@sarahblissart.com>> wrote:
Hi All, I’m a member of the AgX Collective in Boston. I’m a newbie to analog filmmaking, thoroughly hooked after a week at Phil Hoffman’s Film Farm this summer. I live in rural Massachusetts, and plan to build a darkroom this fall in a home studio. I’m concerned about the impact on health of chemical drain/disposal. We have a well and septic system, as do our neighbors. I’m seeking info about best and safest practice for disposing of chemicals, both regarding human water consumption, and also the impact on the complete ecological system. I’ve been told that the best one can do is to rebottle used chemicals and take to a toxic waste site, in addition to installing a filtration system to catch silver nitrate that drains from washes. Is that accurate? What is safest/causes least harm? I’m excited to learn more about “organic developing” after getting an intro to this from Ricardo Leite at Film Farm, but am also seeking info about chemical processing. Questions: * what can a filtration system actually filter? Just silver nitrate? Can it filter chemicals from developers, bleach, fix, etc? * can you point me to info on how to construct a filtration system? * what chemicals/how much will still go into the ground, and what is impact on humans, animals, plants? * is this safe for a septic system? * suggestions for reading/info/resources? Thanks kindly for any advice/resources! Sarah Bliss http://www.SarahBlissArt.com<http://www.sarahblissart.com/> _______________________________________________ FrameWorks mailing list FrameWorks@jonasmekasfilms.com<mailto:FrameWorks@jonasmekasfilms.com> https://mailman-mail5.webfaction.com/listinfo/frameworks Sherman George sgeo...@ucsd.edu<mailto:sgeo...@ucsd.edu> 858-229-4368
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