Solid glyc disposal

[Tony]

Since I've accumulated several hundred kilos of the stuff I've finally hired a skip to get rid of it (and other junk).  Expensive to dispose of.  First company wouldn't without a EWC code, second one seemed to know about it and no issues there.

I'll be sticking with KOH for a number of reasons, not least of all glyc preprocessing.  The extra cost of KOH is paid for by not having solid waste  to dispose of.

[julesandtash]

That is why i use KOH.
Trinity will take 800 litres away on a pallet when they deliver chemicals (or the courier does) for no extra charge
There is something comforting about watching 4 205litre drums of glycerol drive off down the road never to be seen again.

[dgs]

That is why i use KOH.
Trinity will take 800 litres away on a pallet when they deliver chemicals (or the courier does) for no extra charge
There is something comforting about watching 4 205litre drums of glycerol drive off down the road never to be seen again.

I would second that Jules.

Shame the situation isn't like 18 months ago when the glycerol allowance was 5 to 10 ppl.

Tony,

Why don't you try the 2/3 asm and 1/3 koh mix. The glyc stays liquid so you can pre-treat and the recent results I have had seem to be virtually as good as just using asm.

Last process 199litres of oil, total amount of methoxide added 27 litres total amount of glyc out 17litres.
Amount of bio after de-mething 208 litres.

I use the methanol starvation method for S1 and add only 9 to 10% then I use 14 to 15% for next stage.

Oil is glyc washed with no enhancement to the glyc, 10/90 doesn't show any conversion.

[DavidShinn]

Dave's koh/asm mixture of methoxide really works well. During my last reaction (using the koh/asm mix) I also produced more bio than the starting quantity of oil. Furthermore the oil feedstock was really low-grade stuff yet the resultant bio was as good as ever.

David

[Tony]

That's better

[dgs]

OMG!

[Tony]

Does anyone know the waste code for glycerol, in case I get asked it?

Edits:

Biodiesel and byproducts are not "basic" organic chemicals, but "fine" from what I can tell.

So, under:

07 WASTES FROM ORGANIC CHEMICAL PROCESSES

07 07 wastes from the MFSU of fine chemicals and
chemical products not otherwise specified

(07 01 is basic chemicals, which this is not)

Particularly

07 07 08* "other still bottoms and reaction residues" AH

Trouble is that's classified as AH - Always Hazardous

In which case maybe 07 07 99 "wastes not otherwise specified" may be better - always non-hazardous?

The Biodiesel Handbook says "The methanol content requires the glycerol to be treated as hazardous waste".  My glycerol is demethed, though how thoroughly it is hard to say.

[Julian]

Don't know if this is what you are looking for, but from page 18 here ... http://www.biofertiliser.org.uk/pdf/Anaerobic-Digestion-Quality-Protocol.pdf

Wastes from the manufacture, formulation, supply and use (MFSU) of
basic organic chemicals   07 01

Other still bottoms and reaction residues 07 01 08*

Restriction: Glycerol residue from biodiesel manufacture from nonwaste
vegetable oils only

The above concerns inputs to anaerobic digesters issued by the EA 2014.  As I read it, it covers glycerin from WVO but not new oil.

Can't but help think you might be putting your head in the lion's mouth ... would it be better to say as a private individual you're not covered by legislation?

[Julian]

I'm an idiot!  I just read your post again and you obviously found the same info ... sorry!

[Tony]

Interesting that there document states only glycerol waste from production of biodiesel from non-waste vegetable oil.

I see they also include it under "Wastes from physico/chemical treatments of waste" 19 02.  I guess WVO to biodiesel and glycerol falls under the chemical treatment of waste, as it's not from fresh oil.

Perhaps 19 02 10 combustible wastes other than those mentioned in 19 02 08 and 19
02 09 MN

Can't but help think you might be putting your head in the lion's mouth ... would it be better to say as a private individual you're not covered by legislation?

I agree to an extent.  I think it's best to be informed but keep quiet - if I get a call from wherever my skip ends up, and can say, "well, it's just domestic waste so not regulated, but you could treat it as 19 xx xx" then that's good too.

[Jamesrl]

I'm an idiot!

Very informative for those without knowledge of the fact but for those of us a ready in possession of said information tell us we don't know.

[Head Womble]

We had a MAFF visit at work last year, the subject of glycerol came up and I got a stern warning that gly derived from used oil comes under MAFF regs, even if it's home production.
It's due to the animal fat content.
But I can't for the life of me remember what else he said, probably something to do with me frantically trying to change the subject.

[Julian]

That's a whole new can of worms!  I think MAFF is now DEFRA, but I found this page ...

https://www.gov.uk/guidance/biodiesel-producers-when-you-can-use-animal-fat-and-cooking-oil

Which summarised ...

When you need approval and where you can source animal by-products from

You must apply for approval from the Animal and Plant Health Agency (APHA) before using animal fat or animal oil to make biodiesel.

You also need APHA approval to use vegetable oil from a food factory to make biodiesel if the oil was:

• extracted from food that contained animal by-products (ABPs)
  
• used to fry meat or fish or in contact with animal proteins in any other way
  

You don’t need APHA approval to make biodiesel from vegetable oil from the catering industry (eg vegetable oil from a domestic or restaurant kitchen).

So we seem to be OK if our feedstock comes from catering rather than a food factory.

 I wonder if the little bakery I collect from is classed as a "food factory".

[Head Womble]

Not so bad then, he may have made assumptions about where my oil came from considering my line of work.

And yes, it's DEFRA now, just couldn't remember what the new name was. 

[Tony]

Skip went today, I've not heard anything but maybe they've not emptied it yet!  I did say what I would be putting in it when they quoted though.