Mobile Clarification and Actiflo

Mobile Clarification With ACTIFLO®

Reliable Mobile Water Treatment Services

Veolia Water Technologies - Mobile Water Services (MWS) utilizes Actiflo® TURBO ballasted technology balanced with high-performance Hydrex™ chemistries and field services to address emergency, temporary, or supplement water and wastewater treatment needs to our customers. MWS may be a stand-alone mobile equipment rental or a complete and integrated service.  

Actiflo® TURBO mobile applications include physical & chemical separation for total suspended solids (TSS), turbidity, hardness, metals, color, and organics removal.

Actiflo® TURBO has continued to provide the highest flow and highest performance in the mobile clarifier marketplace, treating 0.5 – 2 MGD per trailer. MWS has utilized Actiflo to treat a variety of applications from river water treatment, to mining & metals wastewater, secondary clarification of biologically treated wastewater with high MLSS, storm water, and miscellaneous waste ponds, plus many more applications. 

Mobile Water Services Key Contact Information:

USA Contact Info

Michael Reyes 

Ph: +1 704-650-0881 - Email


Canada Contact Info

David Oliphant

Ph: +1 519-501-1046 - Email

Watch this specialized webinar focused on mobile clarification and filtration, featuring the ACTIFLO® mobile unit.
Mobile Water Services

CASE STUDY | How to recover coal and treat runoff pond effluent?

The Client had a need to treat and discharge coal pile runoff water containing high amounts of total suspended solids from its facility.

The Challenge

The Client had tried in the past several other technologies such as conventional clarification, DAF & compressible sponge-like media filters, developed by Veolia’s competition with no satisfying result.

It led the Client to first contract Veolia for a four week pilot demonstration of the high-rate, sand ballasted clarification process, ACTIFLO®, to demonstrate the overall system performance with regards to the desired effluent quality (TSS <30 mg/l and/or < 20 NTU with inlet of 100 – 1000 mg/l TSS and particles distribution of 0.5 – 10 micron in inlet ) and to confirm full-scale design parameters.

A year later the client experienced a significant rainfall. They had 13 inches in a month compared to their average of 4 inches which caused the level in the coal pile runoff pond, usually maintained by evaporation rates, to rise up to the spillway.


The Solution

The Client contracted Veolia for the rental of an ACTIFLO® TURBO trailer (capable of 1200+ GPM) coupled with Hydrex™ chemicals. Veolia was also awarded an operations contract, offering the Client a hands-off approach.

Key to the overall success of the project, Hydrex™ chemicals supplied a blend of two coagulants and a flocculant / polymer needed with the microsand.



Veolia treated over 50 million gallons of water in clarification mode; at instantaneous flows of 500 – 1000 GPM. The pilot indicated rise rates > 40 GPM/ ft2 were achievable; however, in the full-scale, the client did not have a feed pump big enough to provide more than 30 GPM/ ft2 ~ 1000 GPM. 

The cost of treatment using ACTIFLO® rental, Hydrex™ chemicals and the operations, was similar to typical sewer rates in the US.