Dear group,

See messages below. Glass waste from labs MUST NOT be mixed with non-contaminated glass waste.

As you all know, this is very important. Please be careful about how to dispose waste.

Best,

Nicole

From: Thomas Poulsen <thpou@chem.au.dk>
Sent: Thursday, February 19, 2026 5:10 PM
To: Karl Anker Jørgensen <kaj@chem.au.dk>; Nicole Maria Hauser <nhauser@chem.au.dk>; Alexander Zelikin <zelikin@chem.au.dk>; Kurt Vesterager Gothelf <kvg@chem.au.dk>; Troels Skrydstrup <ts@chem.au.dk>; Kim Daasbjerg <kdaa@chem.au.dk>; Alonso Rosas-Hernández <arosas@chem.au.dk>; Michael Westberg <westberg@chem.au.dk>; Henrik Helligsø Jensen <hhj@chem.au.dk>
Subject: FW: Kemiglas i container til genbrugsglas 19 FEB 2026

Dear colleagues - OrgChem/ChemBiol column,

I have received the following message from Peter Hald. Please make sure to forward the information to your groups along with the attached image.

The glass waste from the laboratories MUST be sorted correctly. For environmental (and economic) reasons.

Thanks

Thomas

Message From Peter Hald:

We are obliged to sort our waste.

Glass waste comes in two categories: 

• Food glass that can be recycled and is relatively cheap
• Chemical glass (anything that has been in a lab) that is hazardous waste and not recyclable

Today somebody who uses organic solvents and collects fractions from columns had dumped their chemical glass in the food glass.

Please instruct your group members thoroughly and directly that they must sort the glass correctly. Otherwise we ruin the recycling of the food glass and we will get fined.

-- 

Thomas B. Poulsen, PhD

Professor

Department of Chemistry, Aarhus University

Langelandsgade 140, 8000 Aarhus C

Denmark

cell: +45 61141844

office: 1512-418

www.tbpoulsenlab.com

From: Birgitte Lodberg Pedersen <blp@chem.au.dk>
Date: Thursday, 19 February 2026 at 14.32
To: Thomas Poulsen <thpou@chem.au.dk>
Subject: Kemiglas i container til genbrugsglas 19 FEB 2026

Kære Thomas,

Vi skriver til dig i din egenskab af søjleleder i den organiske søjle. Peter har i dag fundet solventflasker og søjleglas i containeren til almindeligt glas. Vi gætter på at det må stamme fra de organiske laboratorier.

Vi håber du vil være behjælpelig med at formidle budskabet til forskningsgrupperne i den organiske søjle.

På forhånd mange tak.

Hilsen

Birgitte

Dear all

We are obliged to sort our waste.

Glass waste comes in two categories: 

• Food glass that can be recycled and is relatively cheap
• Chemical glass (anything that has been in a lab) that is hazardous waste and not recyclable

Today somebody who uses organic solvents and collects fractions from columns had dumped their chemical glass in the food glass.

Please instruct your group members thoroughly and directly that they must sort the glass correctly. Otherwise we ruin the recycling of the food glass and we will get fined.

Med venlig hilsen/ Best regards
Peter Hald
Lab. manager and occupational safety supervisor, Ph. D.
Department of Chemistry
Aarhus University
Langelandsgade 140, 8000 Aarhus
Phone:  +45 29861970
pH@chem.au.dk