MBR Technology Assistant
PERMANENT CONCRETE MBR PLATFORM

NXT|MBR™ with CROM² Technology

Making MBR technology more accessible to the middle market using modular solutions with turnkey delivery options. Reducing the cost of ownership through faster installation and longer infrastructure service life.
LESS EXPENSIVE*
0 %
FASTER BUILD TIMES*
0 %

TURNKEY

INSTALLATION SERVICES AVAILABLE
YEARS CONCRETE LIFE
0 +

*Results May Very By Project

the challenge

Technology Access

Complicated design, procurement, and delivery of custom plants built for future conditions can be prohibitively expensive and slow.

Historically best available technology for wastewater treatment and water reclamation is delivered as customized solutions using a design-bid-build delivery strategy. Vessel (tank) materials, membrane selection, integrator contracts, site construction, and ongoing plant performance are all handled at different times and often by different parties. Further the replacement of wear items can become complicated as system components age at different rates. For example, a plant SCADA system, and membranes, may be replaced 3-5 times during the life of a concrete plant. Putting all these pieces together can be complicated puzzle to solve especially for customers falling into the middle market category or for smaller point-of-use, decentralized facilities. NXT|MBR systems solve these challenges and make the best available technology readily available.
The Solution

NXT|MBR Modular CROM2 Designs

We offer modular, shotcrete MBR solutions, using scalable architecture, turnkey delivery options, and single source responsibility all geared toward faster delivery and lowest cost of ownership. NXT|MBR is a permanent concrete wastewater treatment and water reclamation platform that combines CROM² tank technology with modular membrane bioreactor (MBR) equipment package from M|MBR. The result is a long-life, reuse-ready treatment system that can be delivered faster than traditional concrete designs and that is guaranteed to perform. NXT|MBR solutions can be configured for municipal, commercial, and industrial applications.

What’s Included ?

A NXT|MBR scope can include all the components, warranty coverage, materials, and services needed for a fully functional system. In addition to all process equipment, MMBR can provide balance of plant items for sole source responsibility.
  • MBR Design
  • Installation
  • Commissioning
  • Startup
  • Training
  • Ongoing Remote Support
  • AI Enabled Operator Empowerment Tool
  • 5-Yr Tankage Warranty
  • 2-yr to 10-yr Membrane Warranty
  • Process Guarantee
  • Performance Bond
  • CROM² Concrete Tank
  • Fine Screens
  • Membrane Units
  • Pumps
  • Blowers
  • Mixers
  • Process Piping
  • Control Valves
  • Instrumentation
  • UV Disinfection
  • Control Panel
  • SCADA
  • MCC
  • CROM² Concrete Tank
  • Equipment & Materials
  • Building
  • Switchgear
  • Lift Station
  • Non-Potable Water System
  • CCC
  • Effluent Storage
Why is it Better

NXT|MBR VS
CONVENTIONAL CONCRETE MBR

A NXT|MBR provides all the general advantages of MBR technology such as small footprint, superior effluent quality, reclaimed water, and phased installation. But NXT|MBR does more than other MBR solutions. NXT also gives owners a durable infrastructure asset without the complexity and schedule risk of a custom site-built plant. Some of the advantages of a NXT solution versus alternatives include:
NXT|MBR
Other Concrete MBR
Longer Service Life
50-yr to 75-yr
35-yr to 50-yr
Better Warranty
5-yr Tank (No Questions) Performance Bond
Varies
Installation Support
Turnkey
Varies
Delivery Speed
30% faster
Varies
Single Source Responsibility
Yes
Not typical
Modular concrete tank system for wastewater treatment by MMBR Systems. Modular MBR concrete tanks for wastewater treatment at a plant site.
Made to Order Modular Solutions

Repeatable Plant Architecture

NXT|MBR platform is delivered as a 250-, 500-, 750-, or 1,000-Series depending on the application. There are 3 main elements of a NXT|MBR design, the Building Blocks, the Layout, and the Options.
Build Your NXT|MBR

The Building Blocks

The Base Block for a NXT|MBR is approximately 35-ft x 35-ft x 16.5-ft. 25-ft Extension blocks can be added to the Base Block to meet project requirements.

Each NXT|MBR starts with a 35-ft x 35-ft x 16.5-ft deep CROM2 tank. This Base Block can hold approximately 110,000-gal of working process volume. Each new Extension Block adds approximately 80,000-gal. The number of blocks needed for an application is project specific.

Standard Layout

Process equipment sits on a concrete apron extending ~8-ft from the tank walls on three sides. A fine screen platform anchors one end. An electrical building can be located on the opposite end. Pumps, blowers, piping, and chemical storage run along the other two sides. The (optional) electrical building can house the MCC, UV equipment, and control panels. For the larger Series, the plant width is doubled, a second platform and second building are added to handle higher flows and loading.

NXT|MBR-250 Series

NXT|MBR-500 Series

NXT|MBR-750 Series

NXT|MBR-1000 Series

Standard Dimensions

A NXT|MBR can have one or two Base Blocks with 1-3 Extension Blocks. The minimum tank dimensions are 35-ft by 35-ft and the maximum dimensions are 70-ft by 110-ft per the figure.

A 250- and 500-Series NXT|MBR, will have one Base Block (35-ft) with 1-3 (25-ft) Extensions. The shortest NXT|MBR is 35-ft long, and the longest standard layout is roughly 110-ft long. For the NXT|MBR-750 and the NXT|MBR-1000 Series, a second base block is added adjacent the first block using a common wall. Extensions are added to both base blocks equally as needed to meet project requirements. The widest NXT|MBR is roughly 70-ft.

PA
MB
AX
EQ

Build Options

The standard builds can be delivered the fastest. Equipment packages can generally be ready to ship 18 – 22 weeks from approved submittal.
110-ft

Process 32-ft (80K-gal)

85-ft

Process 32-ft (80K-gal)

65-ft

Process 32-ft (80K-gal)

35-ft

Process 32-ft (80K-gal)

35-ft

Process 32-ft (80K-gal)

35-ft

Process 32-ft (80K-gal)

70-ft

Process 32-ft (80K-gal)

70-ft

Process 32-ft (80K-gal)

NXT|MBR-250 Series
Data Sheet
Brochure
NXT|MBR-500 Series
Data Sheet
Brochure
NXT|MBR-750 Series
Data Sheet
Brochure
NXT|MBR-1000 Series
Data Sheet
Brochure

Alternate Layouts, Arrays

NXT|MBR building blocks can be arranged in different configurations to match site constraints. However, custom designs will impact on lead time and cost. For example, trains can be placed end-to-end. They do not need to have a common long side wall. For this extreme layout, the width would be 35-ft and the length 220-ft. Further, modules can be arrayed to accommodate higher initial flows or phased growth where a future design flow condition exceeds 1.25 MGD.

Vertical Considerations

NXT|MBR designs can be inground, have a partial reveal, or be on grade. The best approach depends on project requirements, site conditions, and customer preference. Deeper tanks are available up to 24-ft.
CONFIGURATION OPTIONS

Standardized design. Customized solution.

After selecting a flow, choose from a menu of standard process options. Every NXT|MBR is engineered to your application, without starting from scratch.

Interactive Configurator

Build your best-fit system.

The NXT|MBR platform allows for some degree of customization if schedule is not the primary driver. Select your project requirements below. Your model string updates in real time. Customized equipment packages can be ready to ship in 26 to 32 weeks from approved submittal.

01 / The foundation

Start with your flow.

Set your design flow and choose a membrane.

System Size (GPD)
250,000
QUICK SET
Membrane Type

Fine-tune the process next. Every selection stays editable.

250,000 · Plan updated
Your configuration stays in this browser. No contact details are stored.

PLAN VIEW

Turnkey Installation

We can supervise or perform NXT|MBR installations.

CROM builds the concrete tankage. M|MBR installs and integrates the membranes, blowers, pumps, panels, piping, walkways, and electrical to defined tie points. One contract, one team, one accountable delivery.

01. CROM² Build
Shotcrete tankage constructed per ACI-350. Corrosion-resistant and watertight. Most installations take about 60 days. Actual build times vary.
02. M|MBR Scope Installation & Integration
Process equipment is shipped loose to site. Trained technicians and contractors install the NXT|MBR equipment including the piping, stairs, platforms, fine screens, membranes, instrumentation, control valves, rotating equipment, the electrical building, motor center (MCC), control panels, and appurtenances.
03. Commissioning
The M|MBR team provides full startup and commissioning services including the biological process, plant optimization, operator training, and performance verification.
04. Remote Support
Ongoing remote monitoring and operational support are included. An AI powered operator reference tool is included.
Extensive Experience

Our Concrete MBR History

Twenty years, two plants, one site. A story of innovation and trust.

In 2004, our team helped deliver one of the first flat-plate MBR systems in the U.S. at McKinney Roughs in Texas. The original MPAC system was a compact stainless-steel package plant designed for 25,000 GPD. Two decades later, the same site needed more capacity and a longer-term infrastructure solution. NXT|MBR answered that need.

The new plant increases treatment capacity tenfold to 250,000 GPD, uses membranes that are three times more efficient than the original system, and relies on CROM² concrete tankage designed for service well into the next century.

McKinney Roughs shows how far MBR has evolved. What was once selected mainly for small footprint and high effluent quality can now be delivered for a lower total cost than conventional alternatives. The 250,000 GPD NXT|MBR system was selected through a competitive bid process and reportedly 30% less than the alternatives. The site was built to allow for future expansion up to 750,000 GPD as demand grows.

NXT|MBR didn’t emerge from a whiteboard. It is the product of 20+ years working at the intersection of MBR process design and concrete infrastructure, including hundreds of projects where we integrated MBR systems into concrete tanks.

NXT|MBR didn’t emerge from a whiteboard. It is the product of 20+ years working at the intersection of MBR process design and concrete infrastructure, including hundreds of projects where we integrated MBR systems into concrete tanks.

1000s of concrete plants, 200+ concrete mbr systems, 20+ years of experience

More Concrete Experience

2001

First U.S. Flat-Plate MBR

Our team helped deliver one of the first flat-plate MBR systems in the U.S. at the Bandon Dunes Golf Course in Oregon. This facility had a nominal capacity of 125,000-gpd and uses concrete tanks.
2004 to 2024

4 Examples Spanning 25 Years

Our team has provided over 400 MBR facilities including 200+ systems that use concrete tanks. Many of our customers have asked us to come back to the same site for expansions and upgrades to keep up with demand.
2015, 2025

0.50 MGD

St. Paul
Four trains, four days each. Part-for-part at the cassette level, but it raised capacity and added reuse, which re-rates the plant.
2008, 2017, 2025

0.36 MGD

Yakama Nation
Four trains, four days each. Part-for-part at the cassette level, but it raised capacity and added reuse, which re-rates the plant.
2022

0.50 MGD

Santa Ana WWTP
Two trains, eight hours per train. Same product family, same geometry, the cleanest like-for-like case in the portfolio.
2004, 2014, 2021, 2024

0.12 MGD

Angel of the Winds
End-of-life replacement of hollow fiber equipment with a backward-compatible drop-in from a different manufacturer.