Chemical waste bottles

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Matt_Coffs
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Joined: 29 Jul 2011, 12:21
State/Location: NSW

Chemical waste bottles

Post by Matt_Coffs » 22 Nov 2019, 11:07

Hi everyone,

After looking at the recent Riskassess advice on disposal of chemical waste and in planning to pay for a collection early next year and starting again I thought i'd revisit our waste bottle setup.

From reading the Riskassess info and the CSIS package this is what I came up with. Are the seperate bottles for the individual metals overkill? What do other people have?
  • Mixed heavy metal waste
  • Cobalt
  • copper
  • lead
  • silver
  • zinc
  • chromate & dichromate
  • fluoride
+
  • mixed organics
  • mixed halogenated organics
Thanks,

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Labbie
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Re: Chemical waste bottles

Post by Labbie » 22 Nov 2019, 11:21

We had individual bottles for silver, zinc, lead was our largest bottle. with labels on each bottle as to want to add etc.
Regards Labbie

Lab Manager/Lab Tech, mind reading etc etc
Now retired :wub:

bigmack
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Job Title: Lab Assistant
State/Location: NSW

Re: Chemical waste bottles

Post by bigmack » 22 Nov 2019, 13:20

We have mixed heavy metals and mixed organics .

Matt , is it cheaper to have separate bottles ?

Matt_Coffs
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Joined: 29 Jul 2011, 12:21
State/Location: NSW

Re: Chemical waste bottles

Post by Matt_Coffs » 25 Nov 2019, 09:25

Hi bigmack,

We have mixed bottles at the moment. I'm not sure if it's cheaper or more materials can be recycled? I might have to ask the waste company when they do the pickup next year.

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fibreweb
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Re: Chemical waste bottles

Post by fibreweb » 25 Nov 2019, 09:51

We have just had 52 KG of waste removed at a cost of $753 ($9/kg)
The chemicals were all weighed in their bottles. My heavy metal wastes was all in together in 2 Winchesters
If it is in multiple glass bottles you will be paying for that glass. When I weighed an empty glass Winchester it was 440gms. 5 of those with only a couple of hundred mls in each would add up to close to $50.
A 500ml brown glass bottles weight approx. 340gms
All in together is obviously not ideal but cheaper for disposal and I had no problem with it like that

Marama T
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School: Emmanuel Anglican College
Suburb: Ballina
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Re: Chemical waste bottles

Post by Marama T » 26 Nov 2019, 10:27

Hi, I just have a few questions.
Where is the disposal info on RiskAssess?
Which chromates/dichromates are you collecting? I can find info in CSIS that states it's okay to go down the drain. (Hard copy - possibly out of date).
Which copper compounds are you collecting? I use steel wool to displace the copper from copper sulfate solutions and then put the wool in the bin and the supernatant down the sink.
The only waste bottles I have are lead, silver and organics.
Sorry I have only questions and no answers for you.

Matt_Coffs
Posts: 34
Joined: 29 Jul 2011, 12:21
State/Location: NSW

Re: Chemical waste bottles

Post by Matt_Coffs » 26 Nov 2019, 13:26

Hi Marama T,

The riskassess disposal info is currently in the NEWS section at the bottom of the main page, although it says it'll be incorporated into other areas of the system in the future.

At the moment we have a mixed metal waste bottle and organics. The list above was made up from the riskassess info and CSIS. We may not need all of them. I was just interested in what others had.

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Wayne
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Re: Chemical waste bottles

Post by Wayne » 26 Nov 2019, 13:35

I was wondering how people label their mixed organic waste bottles?

Merilyn1
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Re: Chemical waste bottles

Post by Merilyn1 » 26 Nov 2019, 14:37

We have a separate bottle for each heavy metal here. The organics bottle is covered in labels for each chemical that goes in there, the fellow before me just used Chemwatch labels (I would use Riskassess ones myself)

Merilyn1
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Re: Chemical waste bottles

Post by Merilyn1 » 26 Nov 2019, 14:45

Marama T wrote:
26 Nov 2019, 10:27
Hi, I just have a few questions.
Where is the disposal info on RiskAssess?
Which chromates/dichromates are you collecting? I can find info in CSIS that states it's okay to go down the drain. (Hard copy - possibly out of date).
Which copper compounds are you collecting? I use steel wool to displace the copper from copper sulfate solutions and then put the wool in the bin and the supernatant down the sink.
The only waste bottles I have are lead, silver and organics.
Sorry I have only questions and no answers for you.
The CSIS recommendations about what can go down the sink are based on Sydney Water allowances from some time in the dark ages of the 90s. Not sure what the electronic edition says as, being an independent school, we have no access to it. I would suggest either following Riskassess recommendations or contacting your local council to see what they have to say. I dare say, it will be very different to CSIS.

bigmack
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Joined: 15 Dec 2015, 10:49
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Re: Chemical waste bottles

Post by bigmack » 27 Nov 2019, 09:47

Merilyn
Thankfully the disposals bit of CSIS has been updated on the online version.
I saw an example of this at a recent Science Assistant training where we were asked to bring our old printed manuals and compared it against the online one . This bit at least has been updated .

Marama T
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School: Emmanuel Anglican College
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Re: Chemical waste bottles

Post by Marama T » 28 Nov 2019, 08:12

I ended up posting a question on the Science Assist website and the science technician support officer called me back. Now I have a shipload of information!!! Well worth it, as I was about to chuck some zinc nitrate down the drain. This was okay according to my ancient copy of CSIS. I now know it needs to stored for collection and correct disposal :clap3:

Marama T
Posts: 33
Joined: 01 Aug 2017, 12:19
Job Title: Laboratory technician
School: Emmanuel Anglican College
Suburb: Ballina
State/Location: NSW

Re: Chemical waste bottles

Post by Marama T » 10 Dec 2019, 10:13

I've been doing a bit of research and it is best to keep the waste streams separate (i.e. don't mix the metals together) in order to facilitate decontamination. The best advice would come from the company picking up your waste. This is so interesting! I'm horrified at the stuff I was putting down the sink.

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