Biotrickling Filters

Biotrickling filters are an advanced technology for odor removal in waste and exhaust gases.

They remove air pollutants such as hydrogen sulfide, ammonia, and other organic substances through biological processes.

Dimtech’s biotrickling filters are a sustainable odor abatement technology based on natural processes with ZERO CHEMICAL consumption.

Through years of continuous research and development, Dimtech developed this state-of-the-art technology for odor abatement, ensuring its’ environmental and financial sustainability.

The trickling filter for a high-efficiency rate

Biotrickling filters contain an inert substrate on which the microorganisms grow instead of the organic substrate used in conventional biofilters. The biofilm can biodegrade organic and inorganic compounds under aerobic conditions and transform them into non-harmful and not perceptible compounds, such as carbon dioxide and water.

In contrast to conventional biofilters, biotrickling filters achieve high removal rates regardless of the stream load and a significantly lower footprint. The inert packing material ensures a long service life without needing renewal due to decomposition from the pollutants or their oxidation metabolites.

Biotrickling filter

The biological state-of-the-art odor control technology


With the Bio series, Dimtech offers environmentally and financially sustainable systems for odor control.


Our biotrickling filters operate with selected and efficient biomass without chemicals. 


Robust systems with consistent performance, high reliability, and close to zero maintenance. 

Areas of application

Dimtech's biotrickling filters efficiently treat pollutants that are present in a wide range of industries, including:

  • Wastewater treatment plants
  • Sewage pump stations
  • Solid waste treatment plants
  • Composting plants 
  • Livestock houses 
  • Animal rendering plants

The choice of a suitable system arrangement is
decisive for odor elimination

By having deep knowledge of the processes and design-construction ability, Dimtech
can offer biotrickling filters as:

  • a single-stage system
  • a multiple stage system aiming at heterogenous pollutants
  • coupled with an activated carbon

Dimtech offers end-to-end services when it comes to biotrickling filters, from choosing
the right system and designing it to installing and operating it.


We are always looking to make new contacts and meet companies keen to find out more about our products
and services. Whether you have a project you want our engineers to take a look at, require more information,
or just want to say “Hi,” please reach out and a representative will get back to you shortly.

Select your language