PAD®-K Applications & Benefits

The PAD®-K process (Pre-thickened Aerobic Digestion with Membrane Thickener) provides integrated operation of a Kubota flat-plate membrane thickener and two or more aerobic digesters. By operating these units as a combined system, improved treatment is achieved. Specifically, the PAD®-K process provides the following benefits:

• Digested Sludge Product exceeds Class B requirements
• Improved pathogen destruction at shorter solids retention time
• Smaller volume of digested sludge
• Continuous and automatic thickening to 3% solids without use of chemicals
• Zero TSS and reduced phosphorus returned to main treatment process
• Enhanced pH and temperature control
• Operational reliability using Enviroquip’s non-clogging medium-bubble aeration systems

The PAD®-K process offers of a sludge handling system that produces a stabilized, homogeneous Class B sludge effectively, reliably, and with minimal operator involvement.

Membrane Thickening Applications:

• Increase capacity of existing digester basins
• Upgrade sludge holding tanks to Class B performance
• Pre-condition sludge prior to Class A processing
• Two-stage thickening using 50% fewer membranes (patent filed, process differs from that shown above)
• Continuously thickening digested product to 5% TSS

Please see these links for more information: