QSR® system

Biogasclean’s QSR® system secures maximum availability

The biological desulfurization process produces sulfate (SO4) and elemental sulfur (S). The SO4 is drained out but the elemental sulfur will stick to the packing media and has to be removed on a regular bais. Biogasclean’s QSR® – Quick Sludge Removal – system is a vast improvement. Cleaning is required 2-4 times a year and can be done within one working day.

During QSR® cleaning the tank is filled with water and pressurized air is injected in the bottom of the tank so the packing media is washed like in a big washing machine. The QSR® system makes it possible to clean the tank for sulfur and gypsum sludge without emptying the tank for packing media. This will reduce downtime and increase revenues.

In other biological H2S removal systems the packing media has to be moved and cleaned outside the tank. This is a dirty job and will have a huge negative impact on the uptime.

Anti foam during QSR cleaning – Learn more ►

We look forward to meeting you

Please contact us if you need an efficient solution for desulfurization of biogas. We can help you for any biogas flow and H2S load and no matter if your project is greenfield or refurbishment of an existing plant. We will be happy to share our experience with you. Together, we will find the optimal solution for your biogas plant.


Thorkil Dahlgreen
Founder of Biogasclean

Peter Thygesen
CTO and COO Biogasclean

Jesper Hørlyk-Jensen
Sales Director

Ho Vooi Toc
Sales Manager South
East Asia