From: Wolf, Patrick Sent: Thursday, August 04, 2016 11:03 AM To: Consoli, Anthony; Deck, Steven; Hollamon, Vassie; Pivonski, Gary Subject: RE: Solvent Recycling Systems Anthony: In Maryland, the Maryland Department of the Environment considers it a treatment system that would require the same permit as a Hazardous Waste Treatment, Storage and Disposal Facility. The burden of having this permit far outweighs the sustainability of the solvent recycling system so I have always recommended against the systems when asked in the past. With that said, I haven’t researched them far enough to make a recommendation. Pat Patrick Wolf, MBA, CHMM, CFI Assistant Director Environmental Health and Safety 714 W. Baltimore, MD 21201 W: 410-706-7055 C: 410-808-3073 F: 410-706-8212 ****Please note my new e-mail address. The old e-mail address ( ) no longer works, please update your address book. From: [] On Behalf Of Michetti, Anthony J Sent: Thursday, August 04, 2016 10:23 AM To: Subject: Solvent Recycling Systems Does anyone have a recommendation for a solvent recycling system they have utilized on their campus?

Best, Anthony Anthony J. Michetti Sustainability Coordinator Harvard University / Office for Sustainability Phone: (508) 360-8925 / Email: -- -- ** Please remember to change the subject header if you change topics ** --- You received this message because you are subscribed to the Google Groups 'Green Labs Planning' group. To unsubscribe from this group and stop receiving emails from it, send an email to. For more options, visit. Michetti, Anthony J 05.08.16 07:09. Dear Anthony, This is a very important distinction.

Please see the Medical Marijuana Organization Permit Application Instructions for a table. Medical Marijuana Grower/Processor Permit Application. • The identification number of each member of the delivery team accompanying the transport. List Of Gizmodo Gamespot. Inventory goal: variety of THC, CBG, CBD content. The active ingredients are almost always dissolved first in an alcohol, and are added manually or are fed through tubing through the side of the blender. Fire and explosion hazards may arise during solvent extractions; however, the flammability of solvents is reduced by dilution with water in filtration and recovery steps. Nov 12, 2016. Hempseed oil also can be extracted with n-hexane solvents [26], although this typically results in a contaminated final product unsuitable for human food. Since North American hemp production and processing will involve relatively high fertilizer inputs, as well as machinery in place of the manual labor.

It is potentially over-cautious, and this conversation may be an opportunity for your campus to work through this safety concern with your Fire Marshall, an authority having jurisdiction for some issues. The prohibition of treatment’s intent is to make sure there is not haphazard on-site treatment of hazardous waste with unintended consequences or further contamination. On the other hand, the acceptable intent of solvent recycling is that none of the contaminants are being taken off site or chemically altered. They are being concentrated for disposal, and the cleaned solvent is being used on-site. Some allowances for treatment already exist, such as adjustment of pH of benign aqueous salt solutions before putting in the sanitary sewer, and stripping solutions of ethidium bromide by activated charcoal before disposal. I would contact the supplier to see how they have addressed this concern, and I presume they have examples of statutes or guidelines that allow their technology. Other subscribers to this list serve may have likely addressed this concern as well, and I welcome their input.

Sincerely, Allen Doyle. Hi All: To tag off what Allen shared below – we don’t identify this spent acetone as “waste. Cutehtml Pro 6 Serial Number. ” We have no intention of offering it for hazardous waste disposal, it has value to our institution and we’re going to recycle it and reuse it in the process that generates it. The hazardous waste/TSDF/treatment regulations don’t apply. We keep a log of volumes recycled, who, when, etc. We apply it to acetone, exclusively, at the moment but the CBG system has capability to recycle other solvents.

It’s a good system – straightforward to use, robust, elegantly designed. The gunk leftover is collected and disposed as hazardous waste.

I’m distressed by the opinion, below, that this simple recycling technology would have to comply with TSDF regulations. It’s not waste – it has value – you’re not treating it to dispose – you’re recycling it to use in the same process it came from. Best, Debbie M. Decker, CCHO, ACS Fellow Safety Manager Department of Chemistry University of California, Davis 3467 Chemistry Annex 1 Shields Ave. Davis, CA 95616 (530)754-7964 (T)/(530)304-6728 (cell) Birkett's hypothesis: 'Any chemical reaction that proceeds smoothly under normal conditions, can proceed violently in the presence of an idiot.'