Filtration Products

Sand filtration, microfiltration, ultrafiltration and reverse osmosis – Aerofloat has a range of filtration options in its product suite.

Filtration is an additional step in the overall treatment plant that improves the quality of treated effluent achieved. Higher effluent quality may be required to meet regulatory requirements or for wastewater reuse.

Aerofloat can recommend and install a range of filtration solutions including sand filtration (SF), microfiltration (MF), ultrafiltration (UF) and reverse osmosis (RO) units. Whether as a stand-alone addition to an existing facility or as part of a new wastewater treatment plant, Aerofloat has a reputable, reliable and robust filtration product range.

Aerofloat designed and installed a number of filtration treatment processes at Visy’s new corrugated box processing and printing plant in New Zealand: including sand filtration, ultrafiltration and reverse osmosis. As the Visy site was not connected to the sewer, the regulatory authorities required a high stringent water discharge standard. The heavily contaminated process wastewater was treated to a standard suitable for irrigation. The permeate was reused as boiler feed water and the RO reject in the starch makeup solution – creating a complete water recycle loop.

Contact Aerofloat today with any of your filtration equipment questions.

Effective Results


Filtration is a well known technique in the wastewater treatment industry for its benefits in achieving superior effluent quality.
Reputable Reliant Robust

Reputable, Reliant & Robust

Aerofloat works with reputable third-party product suppliers to provide reliable and robust filtration solutions.
Fit for Purpose


Aerofloat’s expertise in the wastewater treatment industry, and the vast array of products at its disposal, means you will receive the best filtration solution to meet your needs.

Learn about some of Aerofloat’s filtration solutions

Sand Filtration
Reverse Osmosis
Depending on the level of treatment required, a sand filter is an excellent final stage or a pre-treatment step to MF, UF or RO. Sand filtration is a process used to typically reduce suspended solids in wastewater from 20mg/L to 5mg/L.
Microfiltration (MF) is a similar process to ultrafiltration but removes solids down to 0.1-10 microns. Depending on the quality of influent and the desired effluent standard, microfiltration may be installed as a stand-alone final treatment step or as a pre-treatment to RO.
Depending on the effluent quality required, an ultrafiltration (UF) unit may be installed as a pre-treatment step to reverse osmosis. UF can typically remove solids down to 0.005 microns. The UF process can remove low concentration colloidal solids in industrial or sewage effluent.
The reverse osmosis (RO) process filters out dissolved salts from highly saline waters. The treated effluent from RO can be used for drinking water or industrial process water reuse. RO is typically the final stage of treatment and can remove some organisms (such as viruses), as well as the dissolved salts.

Case Studies

How can we help?

Whatever your wastewater challenge, we can develop a solution for you. Start by getting in touch with one of our experts.