Mobile Pressure Filters

A mobile pressure filter is a containerized water treatment system mounted on a trailer that removes suspended solids and contaminants through depth filtration. Water flows through multimedia filter beds (anthracite and sand), where particulates are captured. Filtered water exits via an underdrain while backwash cycles remove accumulated solids. We operate the system with a PLC and HMI for fully automated control.

Our mobile pressure filter removes iron, manganese, turbidity, arsenic, mercury, and suspended solids through multimedia filtration and oxidation. The anthracite and sand media layers capture dissolved and particulate contaminants. For heavy metals like arsenic and mercury, pretreatment aeration oxidizes iron and manganese, improving removal efficiency. We design the system to handle multiple contamination challenges simultaneously.

Our mobile pressure filter delivers 750 gallons per minute (gpm) maximum flow across a five-cell vessel. Total filter area reaches 125 square feet with a design filtration rate of 3-6 gpm per square foot. This sizing balances flow efficiency with contact time for effective removal. Configuration options adapt the filtration rate to match your specific flow requirements.

We design our multimedia filter to remove turbidity, suspended solids, and oxidized iron and manganese that damage RO (reverse osmosis) membranes. Particulates larger than 5 microns are captured by depth filtration, protecting downstream membrane systems. Manganese removal is critical – even small concentrations foul membranes. Pretreatment extends downstream equipment life while reducing chemical and membrane replacement costs.

During backwash, influent water from active cells flows in reverse through a single cell’s media bed at high velocity. Air scour (75 scfm at 5 psi per cell) lifts and agitates the anthracite and sand, dislodging trapped solids. Backwash water carrying suspended solids exits to drain or recovery. Because the system self-generates backwash water from filtered output, no separate tank is required.

Multimedia filters use two or more media layers (typically anthracite and sand) to capture contaminants across a wider size range. Coarser anthracite at the top removes larger particulates, while finer sand below captures smaller solids. This layering extends filter run time and improves effluent quality compared to single-media approaches. During backwash, media stratifies naturally without manual adjustment.

Our system requires 460 volts, 60 hertz, 3-phase power at 100 amperes. Power consumption depends on cycle frequency and air compressor runtime. Operating costs remain low because the self-generating backwash eliminates pump energy for separate water supply. Minimal media consumption and fully automated operation reduce staffing requirements.