Support our Sponsors, they keep FADU free:   AG Photographic   Keyphoto   The Imaging Warehouse   Process Supplies   RH Designs   RK Photo   Second-hand Darkroom Supplies   Silverprint Ltd

Notices

Go Back   Film and Darkroom User > Equipment > Darkroom

  ***   Click here for the FADU 2015/2014 Yearbooks   ***

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 18th March 2009, 08:07 AM
Monoman's Avatar
Monoman Monoman is offline
Friend
 
Join Date: Sep 2008
Location: Sunny Lancashire!
Posts: 32
Default Disposal of Darkroom Chemicals

The recent discussion about the importance of using fresh chemistry raises an important related issue: what is the best (i.e. safest whilst still practical) means of disposing of used chemistry?

Until the recent availability of recycling centres I used to simply flush mine down the toilet with lots of water. I wrote to Paterson once asking about the wisdom of this and they confirmed that it should not cause a problem. For the past 5 or 6 years, however, I have bottled up my used chemistry in empty laundry liquid containers, labelled it carefully and periodically taken it to the local recycling centre where a very nice man takes it from me and locks it in a yellow bin for disposal I know not how.

This is not too much of an inconvenience though, on the basis of the recent discussion and the fact that I wouldn't give up my slot thingy for a gold watch, I probably keep my chemicals too long, even if I don't overwork them. If I'm going to use fresh chemistry more often, I'm obviously going to produce more waste, and there's only so much laundry to be done! Has anyone an informed view of how best to dispose of it?

Incidentally, I believe that the addition of used fixer to cut flower water prolongs their life. Don't let your dog / cat / children drink from the vase, however!!!
__________________
Best wishes,
Richard


*************************************
Picture-Every-So-Often Project 2009
http://tinyurl.com/cfylrz/
Reply With Quote
  #2  
Old 18th March 2009, 08:32 AM
B&W Neil's Avatar
B&W Neil B&W Neil is offline
Friend
 
Join Date: Oct 2008
Location: West Cornwall
Posts: 4,069
Default

I read somewhere (probably on APUG) that in the USA some photographers have the habbit of using their spent selenium toner (well diluted down) on their veg patches which produces exellent results. It is supposed to be especially good on tomatoes, but I don't fancy doing this myself!

Neil.
__________________
"The aim of art is to represent not the outward appearance of things, but their inward significance." Aristotle

Neil Souch
Reply With Quote
  #3  
Old 18th March 2009, 09:35 AM
Dave miller Dave miller is offline
Friend
 
Join Date: Aug 2008
Posts: 6,322
Default

I also took Paterson’s advice to mix all spent chemicals together in order to neutralise them, and then flush them down the drain.



I also corresponded with an Australian gentleman (Uncle Bill?) around the same time who told me that his favoured method was to tip them over his garden fence, at the dead of night, into his neighbour’s swimming pool, where he believed it helped to keep the water clear. Unfortunately my neighbour doesn’t have a swimming pool, so I shall continue tipping my musicale volumes of blended waste down the drain.
__________________
Regards
Dave
www.davids.org.uk
Reply With Quote
  #4  
Old 18th March 2009, 09:49 AM
Argentum's Avatar
Argentum Argentum is offline
Friend
 
Join Date: Sep 2008
Location: Sceptred Isle
Posts: 3,066
Default

Since none of the chemicals I use stipulate regulations for disposal, they go down the drain just like any other household chemicals do.
__________________
An old dog learning new tricks
Reply With Quote
  #5  
Old 18th March 2009, 10:02 AM
Trevor Crone's Avatar
Trevor Crone Trevor Crone is offline
Friend
 
Join Date: Sep 2008
Location: London
Posts: 2,609
Default

Developers, fixers and stop baths go down the drain with plenty of water.

I never throw Se toner (rarely used) away I just keep topping it up with fresh toner.
__________________
"To the attentive eye, each moment of the year has its own beauty, and in the same field, it beholds, every hour, a picture which was never seen before, and which will never be seen again" Ralph Waldo Emerson.

Timespresent
Arenaphotographers
Reply With Quote
  #6  
Old 18th March 2009, 01:05 PM
Richard Gould Richard Gould is online now
Friend
 
Join Date: Dec 2008
Location: Jersey Channel Islands
Posts: 5,326
Default

chemicals, well mixed together, go down the toilet at the end of every film develping/printing session and haqve down for as long as i can remember with no ill effects so far Richard
Reply With Quote
  #7  
Old 18th March 2009, 02:03 PM
Argentum's Avatar
Argentum Argentum is offline
Friend
 
Join Date: Sep 2008
Location: Sceptred Isle
Posts: 3,066
Default

Bit of Pyro in the drains helps to keep the rats at bay
__________________
An old dog learning new tricks
Reply With Quote
  #8  
Old 18th March 2009, 03:00 PM
Peter Hogan's Avatar
Peter Hogan Peter Hogan is offline
Friend
 
Join Date: Sep 2008
Location: Buckinghamshire
Posts: 504
Default

The LEGAL situation is that commercial enterprises have to employ professional waste disposal experts. Domestic usage can go down the sink/loo with plenty of water.
Reply With Quote
  #9  
Old 18th March 2009, 04:19 PM
Gary Holliday's Avatar
Gary Holliday Gary Holliday is offline
Friend
 
Join Date: Feb 2009
Location: Cambridge UK
Posts: 38
Default

In the UK, does it matter if the chemicals go down the toilet or the bath?
__________________
a cambridge photographer's blog
Reply With Quote
  #10  
Old 18th March 2009, 04:29 PM
Dave miller Dave miller is offline
Friend
 
Join Date: Aug 2008
Posts: 6,322
Default

Quote:
Originally Posted by Gary Holliday View Post
In the UK, does it matter if the chemicals go down the toilet or the bath?
No! But fixer loves eating chrome bath outlets, and converting them to brass.
__________________
Regards
Dave
www.davids.org.uk
Reply With Quote
Reply
Support our Sponsors, they keep FADU free:   AG Photographic   Keyphoto   The Imaging Warehouse   Process Supplies   RH Designs   RK Photo   Second-hand Darkroom Supplies   Silverprint Ltd

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Selenium Toner Disposal Neil Smith Toning 25 30th November 2010 03:55 PM
Measuring chemicals Jacques Chemical formulae 20 3rd April 2010 03:51 PM
Disposing of chemicals kazer Manufactured brews 4 10th June 2009 10:36 PM
Chemistry / chemicals alfie Darkroom 12 20th May 2009 07:12 PM
E6 Kodak 6 bath chemicals? Mike Meal Colour film 11 3rd May 2009 03:13 PM


All times are GMT. The time now is 09:13 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.