Laserfiche WebLink
Pagel of 2 <br /> Muniappa Naidu [EH] <br /> From: John Robin Dohnrobin@proactivepkg.com) <br /> Sent: Wednesday, October 15, 2008 3:04 PM <br /> To: Joe Billett <br /> Cc: John Scott; Jesse Acosta; Frank Tucker; Muniappa Naidu [EH] <br /> Subject: FW: Kodak Plate Chemistry pH Neutralizing options <br /> Attachments: CPAC DNS-100 System -Brochure for customers 41603.pdf; Metafix CTP Developer pH <br /> Control Unit 112202.pdf <br /> Information Frank requested on the plate processor. We did the experiment called out below and the Ph was 9.0 <br /> for the water discharge. <br /> From: george.ogden@kodak.com [mailto:george.ogden@kodak.com] <br /> Sent: Wednesday, October 15, 2008 12:32 PM <br /> To: John Robin <br /> Cc: skip.garrett@kodak.com <br /> Subject: Kodak Plate Chemistry pH Neutralizing options <br /> Hi John - Here's some info I dug up on Kodak plate chemistry pH neutralizing. Skip Garret is working on nailing <br /> down the details of how Kodak customers can access these systems and what discounts may be available to you <br /> as a Kodak customer. As we discussed yesterday, you have two options for disposing of waste plate processing <br /> chemstries: neutralizing onsite and discharging the neutralized wastestream to the sewer-or capture the <br /> chemistry and haul it away with a licensed waste hauler. Joe Billet said that Proactive already contracts with <br /> California Environmental Litho for hauling of other print waste streams, i.e. ink, solvent, so that option wouldn't <br /> entail too much effort; Mike Harvey of CEL would send a survey sample to the lab for analysis, then he'd bring <br /> you a labeled drum for collecting the waste. The two neutralizing systems detailed in the attachments have the <br /> same operational effect, they neutralize the waste chemistry by adding an acidic compound, then discharge the <br /> wastestream to the sewer drain. The MetaFix system has 24/7 online monitoring and documentation of operations <br /> for sites that require stringent regulatory oversight. Both systems require some simple routine maintenance and <br /> purchase of the acidic additive compound. <br /> The question remains:what is the pH of the processor rinsewater discharge during daily platemaking. The ratio <br /> of water to chemistry discharge during platemaking is approx. 160 parts water to 1 part chemistry(4 oz. developer <br /> into approx. 5 gal. water); the developer overflow discharges into the rinsewater drain pipe with each plate cycle, <br /> co-mingling water and developer. I don't believe that this intermix would drive the pH into the unacceptable range, <br /> but a simple test would determine the fact. Remove the rinsewater discharge pipe from the sewer outlet; have two <br /> clean 5 gal. buckets available; each plate cycle discharges about 5 gal. so run about half the volume of discharge <br /> to each bucket so no spilling occurs. When the cycle is complete, pour the contents of the two pails back and forth <br /> so they are well mixed; test the contents with a properly calibrated pH tester and compare the result to that of <br /> plain tap water, then refer to the county wastewater discharge guidelines. If necessary, the developer overflow <br /> can be removed from the rinsewater discharge and rerouted to neutralization or capture, let me know if you need <br /> that done and I'll see to it. Please don't hesitate to call me, Skip Garret or Kodak Printers Environmental Program <br /> with any questions. <br /> Kodak Printer Environmental Program Hotline: 877-574-7274 <br /> Email: PEP@Kodak.com <br /> Thank you, <br /> Billy Ogden <br /> 1/30/2009 <br />