ProClin-Waste: What do you do with it?

[sfranzenburg]

Hi,
how do you discard your HiSeq 3000/4000 "Maintenance Wash Solution", containing ProClin? According to the MSDS, this compound is quite a nasty one.
It makes up 0,0003% of the wash solution, but I have not found any data if this dilution is still hazardous.
So far, we collect the liquid and it gets picked up for hazardous disposal.

best,
Sören

[kmcarr]

Hi,
how do you discard your HiSeq 3000/4000 "Maintenance Wash Solution", containing ProClin? According to the MSDS, this compound is quite a nasty one.
It makes up 0,03% of the wash solution, but I have not found any data if this dilution is still hazardous.
So far, we collect the liquid and it gets picked up for hazardous disposal.

best,
Sören

According to Sigma's Safety & Handling instructions for ProClin found here typical usage concentrations (0.025-0.05% or 7.5-15ppm) are generally safe for discharge into municipal waste systems. From the paragraph at the bottom left of page 2:

Many reagents that contain recommended in use levels of ProClin preservatives may be safely discharged to a municipal sewer system without treatment. Studies have shown that biological processes in a waste treatment facility are unaffected by 2 ppm or less of the combined active biocides.

[sfranzenburg]

Thanks a lot. That really helps keeping the amount of toxic waste in check. The formamid-containing waste of the HiSeq and cBot is enough. HiSeq X-Ten labs must drown in that stuff...