Author Topic: In processor titrated water wash method (Read 109675 times)

julesandtash · « **Reply #105 on:** October 16, 2012, 04:39:55 PM »

Nice result - well done. If you do leave jars of the wet bio to breathe they all start to clear from the top like that.

Julian · « **Reply #106 on:** October 16, 2012, 04:47:11 PM »

I'm gobsmacked at the volume of water this method has put into the bio ... so far I've got about 4 litres out of an 80 litre batch!

Way more than I get when mist washing.

Head Womble · « **Reply #107 on:** October 16, 2012, 05:19:49 PM »

Are you condensing it off Julian?

Julian · « **Reply #108 on:** October 16, 2012, 05:51:53 PM »

Yes, but I'll also be loosing some to atmosphere as I'm bubbling with a small compressor.

Head Womble · « **Reply #109 on:** October 16, 2012, 05:58:59 PM »

I guess the pump really mashes the bio and water together,
whereas mist washing is far more gentle.

Julian · « **Reply #110 on:** October 16, 2012, 06:24:19 PM »

You're probably right, however I've just looked again and I'll revise my estimate to 3 litres, but it still seems a hell of a lot to me.

If this is typical, then final drying with this method is quite important. I've just dumped the batch into the barrel formally known as mist washing barrel at 67°C and I'll bubble overnight.

Tony · « **Reply #111 on:** October 16, 2012, 06:44:27 PM »

Quote from: Julian on October 16, 2012, 06:24:19 PM

I'll bubble overnight.

Well that ain't gonna get it dry is it - suggest bubbling the bio instead

julesandtash · « **Reply #112 on:** October 16, 2012, 08:19:02 PM »

If you leave it a decent amount of time, quite a lot of that water will drop out. I have left it overnight after the second wash and then drained the water in the morning before drying.

Bubble drying with the Koi pump or running the processor with the venturi sucking air from the outside world and with the big four inch vents on the top of the processor does a good job

Head Womble · « **Reply #113 on:** October 16, 2012, 08:22:41 PM »

I got a batch done today and the gly is settling at the mo.

I'll do the water wash tomorrow as I don't fancy starting it this late in the day, plus I haven't got any acid yet.

What's the most commercially available and economic acid we can use.

julesandtash · « **Reply #114 on:** October 16, 2012, 08:26:51 PM »

Concentrated Sulphuric is pretty much the cheapest - Vinegar is probably the most commonly available.

Head Womble · « **Reply #115 on:** October 16, 2012, 08:58:05 PM »

How about something like this
http://www.ebay.co.uk/itm/HIGH-STRENGTH-BRICK-ACID-BASED-CLEANER-REMOVING-CEMENT-AND-MORTAR-SPLASHES-TILES-/140856804762?pt=LH_DefaultDomain_3&hash=item20cbb8459a

it's 18% hydrochloric acid.

Tony · « **Reply #116 on:** October 16, 2012, 09:11:10 PM »

That's not bad - even with the postage it's cheaper than the Wickes stuff (and stronger!)

photoman290 · « **Reply #117 on:** October 17, 2012, 01:07:39 AM »

remember. the max concentration of hcl you get is 34% above that it it is fuming hcl. H2So4 is 96% or 98% fuming.

Julian · « **Reply #118 on:** October 17, 2012, 08:12:47 AM »

Mine wasn't. Don't know, is there is such a thing as fuming Sulphuric acid?

photoman290 · « **Reply #119 on:** October 17, 2012, 10:43:27 AM »

there is but its not normally sold as such.
http://en.wikipedia.org/wiki/Sulfuric_acid#Grades_of_sulfuric_acid
soory if i sound like i know what i am talking about. chemistry is not my best subject. wish i knew more about it. all the chemists i know are weirder than me.

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In processor titrated water wash method