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27.04.2026
COALSI goes blue — more than just a new color
23.03.2026
Personal exchange around IFAT 2026
20.10.2025
Stecksystem soll Schachtabdeckung revolutionieren
01.07.2025
NEU: coalsi GmbH
14.11.2022
New high-performance filter for industry: COALSI Volumenmax
22.08.2022
Sewerage: Little water, lots of smell
20.04.2022
COALSI special filter mats — Why it stinks from the sewer and what the solution looks like
25.08.2021
Municipal water in street drains: Bio-filter dissolves odors
17.08.2021
Environmental technology: Sewer filters allow Hockenheimer to breathe a sigh of relief
05.10.2020
Odour emissions: new filter mats
02.09.2020
Microbially induced corrosion (MIC): triple filter beats MIC with its own weapons
26.06.2020
Odour emissions: New pipe end filter expands portfolio
19.05.2020
Process and waste water odors: pipe filters as an extension system
27.02.2020
Waste water and process odors: hybrid odour filter with “extra”
26.02.2020
New brand and website for COALSI
03.02.2020
Phosphorus recycling from sewage sludge ash: New microbiological process
05.09.2019
Foreign water inflow challenges sewer network: Regulate inflow in drains
08.07.2019
Environmental technology for retrofitting: multiple filters for the exhaust pipe
23.05.2019
Operational environmental issues: Topic of odour pollution in 12 points
28.02.2019
Residents and employees looked down their noses: Vechta sewage treatment plant today symptom-free
28.01.2019
Environmental technology: When the company smells
