Wastewater Treatment made easy

What are the #1 wastewater treatment priorities for most municipal and industrial facilities?

• Increased demand for high quality of effluents
• Improving capacity of the wastewater treatment plant
• Reliability of operational and maintenance processes
• Reducing energy costs

There is a solution: Trickling Filters


Trickling Filters are a cost-effective, energy-efficient and reliable solution to almost any municipal or industrial wastewater treatment challenge.

A Real Solution with Quantifiable Benefits


Not all wastewater management challenges are the same, and neither are the organisations that deploy wastewater solutions. There is no such thing as a standard Trickling Filter treatment plant. With plastic structured media, Trickling Filters can be configured to provide a very real solution to a wide variety of different bio filtration needs.

Choosing the right media for the treatment stage


Whether it’s a new build, a refurbishment or a replacement sewerage plant project, low energy consumption and cost effectiveness are key when selecting biological wastewater treatment equipment.


Our BIOdek Plastic Media with its larger surface area and choice of cross or vertical flow patterned fill design, is built to maximize processing efficiency and is perfectly suited for use in a high-pressur e Industrial environment.


Lamella separators are used extensively to assist the settlement process of removing solids from liquid in refinery, municipal and industrial applications which include pharmaceutical, food and effluent treatment.


Significant solid/liquid separation operational efficiencies can be achieved by the use of 2H’s Lamella Separators, TUBEdek. This is due to its unique design of interlocking profiles which encourages laminar flow.

How does it all work?


The Trickling Filter process is based on the biological oxidation of pollutants contained in the wastewater. The media in the Trickling Filter provides a surface for the growth of bacteria and other micro-organisms that feed on the organic pollutants in the wastewater, and then uses oxygen in the air to convert these into harmless by-products.


Trickling Filters can provide biological treatment of wastewater to reduce BOD and COD in carbonaceous systems, BOD and ammonia in combined carbonaceous and nitrifying systems and nitrifying filters to reduce ammonia.


Originally using rock or stone media, Trickling Filters have proved simple to run, reliable, energy efficient and able to achieve successful treatment. The modern version of Trickling Filters uses structured plastic cross-flow media which works by a continual process of splitting, and re-splitting, the applied flow at each point of contact between the opposite downward sloping corrugations of adjacent sheets in each media block to produce efficient mixing.



Trickling Filters built with structured plastic media can be designed to meet the increasingly stringent standards required for modern wastewater treatment works. Plastic media can be used to create an ’add-on’ to an existing Trickling Filter and decrease the load during pre-treatment, when, for example, the capacity of an existing works has to be increased or the consent tightened.



When a company is faced with tighter discharge consents or higher industrial effluent charges, the 2H high rate filter media offers an economic, simple and reliable option to meet these demands. For the higher BOD/COD concentrations that can be experienced in industrial applications, 2H uses a combination of Cross Flow Media and Vertical Flow Media. Plus it’s really simple to operate and requires no special skills as well as being  energy efficient.

Trickling Filter Applications


With the correct design and configuration, Trickling Filters can meet wastewater treatment requirements for BOD removal, nitrification or denitrification.

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