With deep expertise in both passive (gravity-based) and active (mechanical) dewatering systems, Brennan offers the flexibility to handle a range of challenges—from dredged material management and sediment consolidation to full-scale water treatment when needed; we handle the whole operation from proposal to disposal.

Every project starts with a thorough evaluation of site conditions, sediment characteristics, water chemistry, and performance goals. From that foundation, we recommend the optimal blend of separation and dewatering methods that balances efficiency, cost, and environmental compliance.

Dredged Material Separation Options

  • Hydrocyclones
  • Shaker screens
  • High-speed shaker tables
  • Sand wheels and more

Geotextile Tubes

We have successfully dewatered more linear feet of geotextile tubes than any contractor in the United States. Whether working on a small, temporary dewatering pad or a large, long-term cap-in-place landfill or disposal facility, our experts fill and stack geotextile tubes to maximize both available space and material dewatering.

Containment Facilities

Brennan constructs and operates confined disposal facilities with structural integrity and operating capacity to withstand dynamic slurry discharge. We are experts in creating and utilizing weir structures that meet targeted effluent quality.

Mechanical Dewatering

Depending on the project, dewatering equipment can be mobile-skid or trailer-mounted, semi-permanent, or permanent installations. We systematically determine and implement the most suitable high-speed dewatering method for each project.

Material Separation

Dredge slurry is filled with debris, sticks, rocks, and vegetation. We use a wide range of equipment options to mitigate risks associated with debris management and material separation.

At J.F. Brennan Company, we combine deep technical experience with hands-on execution to deliver advanced separation and dewatering systems tailored to dredging projects. From treatability testing through full system deployment, we design solutions that manage dredged materials, support sediment consolidation, and treat water as needed. 

Why Choose Brennan for Dewatering & Separation?

  • Tailored System Design
    There’s no one-size-fits-all dewatering approach. We evaluate site-specific conditions and design system combinations that optimize dredge production, separation, and dewatering efficiency—delivering real value and cost savings.

  • Flexible Process Options
    We’re equipped to handle a full spectrum of methods—from passive systems to high-speed mechanical configurations—depending on project demands.

  • Full-Scale Implementation
    Whether geotextile tube systems, CDFs, or mechanical filtration, we don’t just design systems—we build, operate, and manage them to completion.

We match separation equipment to dredging systems to maximize yield. Depending on sediment characteristics, we deploy technologies such as:

  • Hydrocyclones

  • Shaker screens

  • High-speed shaker tables

  • Sand wheels

  • Custom combinations tailored for each site

Dewatering Approaches

Geotextile Tube (High-Speed) Dewatering
Our team is among the most experienced in the U.S. in applying geotextile tube systems. We leverage internal expertise in flocculant/coagulant dosing, flow management, and slurry handling to maximize throughput and reduce moisture content.

Mechanical Dewatering
For solid–liquid separation, we provide mobile, trailer-mounted, semi-permanent, or permanent mechanical systems, including:

  • Belt presses

  • Filter presses

  • Centrifuges

  • Total Clean Dewatering Systems

  • Other custom filtration setups

Confined Disposal / Discharge Facilities (CDFs)

When containment is required, we plan and manage Confined Disposal Facilities (CDFs)—also called confined discharge facilities or dredged-material containment areas. We design and operate these to safely hold dredged materials and process water before controlled discharge.