Cleaning & Sanitizing regimen
I've read previous posts on this issue but I need some help with details for a meeting with the ministry of environment here. Does anybody have a cleaning & sanitizing plan that they used for local authorities to convince them that they will not be trashing the local sewage plant? We're talking about a 10 bbl micro with 3 10 bbl fermenters and a bunch of grundies (6) for conditioning tanks. All tanks are CIP. I've managed to convince them that spent grains/trub/yeast are going to the cows so it's really just the cleaning side they're concerned with.
Some of the details they've been asking about:
1. How often are tanks cleaned
2. How often are the tanks sanitized
3. How much water is used in cleaning/sanitizing process
4. What chemicals are used in cleaning/sanitizing and in what dilutions
5. What will be the PH of the caustic & acid solutions when sewered. I've told them I'll be reservoiring & recycling the solutions so the real question is until what PH is the caustic and the acid effective?
6. What special equipment do I need to recycle caustic & acid solutions & is it worth it?
Anything else you can think of that would be of interest to a sewage plant would be extremely helpful.
Please see my additions below...........
Originally Posted by Dancing Camel
I find the less you tell them the better.
Tell them you mainly use alkaine cleaner, get all msds and data sheets available. Use it with your new RO water at a .5% solution and have a buffer saftey tank which doubles as your CIP tank... After use you will Dilute it 10 times so that the PH is neutralized (Overkill it)....
For sanitizing use 80C water to pasurize the tanks, Occasionally use Acid to get rid of stubborn chalk build up , again saftey buffer tank and Dilution.
invite them to come after 1 month and do a test on you brewery drain for levels. You wont have a problem.
As for the PH of caustic its not important its the conductivity.... you need a special Ph meter to give you that answer.