PERMANENT CONCRETE MBR PLATFORM

NXT|MBR™
with CROM² Technology

The M|MBR team has helped to deliver 100s of MBR systems into concrete plants. CROM has delivered thousands of tanks over the last 70 years. Now we’ve teamed up with CROM to evolve both the vessel type and the delivery method. We’re putting the power and the promise of MBR technology into the hands of the middle market by reducing the cost of ownership and simplifying access.
MODULAR DESIGN FLOW (UP TO)
0 MGD
LESS EXPANSIVE AND FASTER BUILD TIMES
0 %

TURNKEY

INSTALLATION SERVICES AVAILABLE
YEARS CONCRETE LIFE
0 +
WHY NXT|MBR

Turnkey Concrete Tanks, Modular MBR Solutions

The fastest path to the most cost-effective, longest-lasting wastewater treatment solutions.

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

NXT|MBR Systems are installed by trained professionals with extensive MBR experience. Each NXT|MBR package includes design assistance, installation services, commissioning, and ongoing remote support. A NXT|MBR is a turnkey product. Scope can include CROM² tankage and all MBR process equipment. The MBR package includes control panels, a motor control center (MCC), piping, stairs, walkways, membrane equipment, blowers, pumps, mixers, control valves, instrumentation, etc. Services include commissioning, training, and ongoing remote support.

  • MBR Design
  • Installation
  • Commissioning
  • Startup
  • Training
  • Ongoing Remote Support
  • AI Enabled Operator Empowerment Tool

Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast

  • CROM² Concrete Tank
  • Fine Screens
  • Membrane Units
  • Pumps
  • Blowers
  • Mixers
  • Process Piping
  • Control Valves
  • Instrumentation
  • UV Disinfection
  • Control Panel
  • SCADA
  • MCC
  • CROM² Concrete Tank
  • ll Equipment & Materials
  • Building
  • Switchgear
  • Lift Station
  • Non-Potable Water System
  • CCC
  • Effluent Storage
Services
Coverage Types
Equipment & Materials Scope
Installation
Optional Scope
Modular concrete tank system for wastewater treatment by MMBR Systems. Modular MBR concrete tanks for wastewater treatment at a plant site.
Best Fit Designs

Made to Order
Modular Solutions

In collaboration with CROM, and IWS construction specialists, M|MBR has developed standardized concrete MBR modules with capacities ranging from 0.25 MGD to 1.0 MGD. Depending on wastewater characteristics, these four sizes cover design flows ranging from approximately 200,000-gpd up to 600,000-gpd with peak flows up to 1.0-MGD. The treatment capabilities of a given design depend on site-specific pollutant loading, treatment objectives and other biological design considerations.
CROM² CONCRETE TECHNOLOGY

NXT|MBR VS
CONVENTIONAL CONCRETE MBR

A NXT|MBR provide 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:

These advantages offer quantifiable benefits over conventional technology and traditional delivery methods. They can also reduce the risks involved with building wastewater treatment infrastructure.

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
Delivery
Turnkey
Varies
Faster Delivery
30% faster
Varies
Single Source Responsibility
Varies
Not typical
Made to Order Modular Solutions

Repeatable Plant Architecture, Customizable Capacity

In collaboration with CROM and IWS construction specialists, M|MBR has developed standardized concrete MBR modules from 0.25 MGD to 1.0 MGD. Depending on wastewater characteristics, these four sizes cover design flows from approximately 200,000 GPD up to 600,000 GPD with peak flows up to 1.0 MGD.

The Building Blocks

Each NXT|MBR starts with a 32-ft x 32-ft x 16-ft deep CROM tank compartmentalized into four zones. The base module holds approximately 80,000 gallons of working process volume with a nominal treatment capacity of 250,000 GPD at municipal strength wastewater. Actual capacity varies with customer-supplied design criteria. Once process requirements are established, our design team can add tank volume for equalization and waste biosolids storage.

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. Pumps, blowers, piping, and chemical storage run along the other two sides. An optional small building can house the MCC, UV equipment, and control panel. Standardized layouts, proven components, and vertically integrated delivery improve quality, reduce risk, shorten schedules, and lower total cost.

PA
MB
AX
EQ
25-ft

Process 32-ft (80K-gal)

25-ft

Process 32-ft (80K-gal)

25-ft

Process 32-ft (80K-gal)

35-ft

Process 32-ft (80K-gal)

35-ft

Process 32-ft (80K-gal)

PA

Process 32-ft (80K-gal)

EQ-SHT

EQ, SHT 22-ft

EQ, SHT 44-ft

EQ, SHT 22-ft

Process 54-ft

Process 54-ft (163K-gal)

EQ, SHT 76-ft

EQ, SHT 22-ft

Process 76-ft

Process 76-ft (232K-gal)

EQ, SHT 98-ft

EQ, SHT 22-ft

Process 98-ft

Process 98-ft (312K-gal)

NXT250

Faster build, longest service life, lowest cost of ownership

NXT500

Faster build, longest service life, lowest cost of ownership

NXT750

Faster build, longest service life, lowest cost of ownership

NXT1000

Faster build, longest service life, lowest cost of ownership
Each module is 32-ft wide with a standard 16-ft tank wall. Module lengths increase in 22-ft increments to roughly 100-ft. Smallest footprint: approximately 32-ft x 32-ft. Largest plan view: approximately 64-ft x 100-ft with two modules sharing one common long wall. For the 1-MGD module, tank depth can increase to 24-ft to add working volume and allow stacked membrane configurations.
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.

Select your project requirements below. Your model string updates in real time.

System Size (GPD)

250,000 NXT-250

Membrane Type

Equalization

Process Redundancy

Disinfection

Sludge Holding

Your NXT|MBR Model

NXT-250-PFSM-eq-ST-UV-SH

System Size (GPD) 250,000 gpd
Membrane Type Polymeric Flat Sheet MF
Equalization Yes
Process Redundancy Single Train
Disinfection UV
Sludge Holding Yes
TURNKEY DELIVERY

Give us the site. We install the NXT|MBR

CROM builds the concrete tankage. M|MBR integrates the process: 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, watertight, and warranted for 5 years with no conditions.

02. MBR Integration

M|MBR installs and integrates all process equipment: membranes, MCC, control panels, piping, instrumentation, and appurtenances.

03. Commissioning

Full startup and commissioning services. Biological startup, process optimization, operator training, and performance verification.

04. Remote Support

Ongoing remote monitoring and operational support. STREAMETRIC-integrated where applicable. Experts available across the system life.

Membrane agnostic. NXT|MBR is compatible with flat-plate, flat-sheet, hollow-fiber, and ceramic membrane technologies.
We spec the best membrane for your application, not the one we are obligated to sell.

OUR CONCRETE MBR HISTORY

Two decades. One site. The whole story.

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.

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

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 McKinney Roughs, TX. A 25,000 GPD compact stainless steel package plant.

2004 to 2024

Hundreds of Concrete MBR Projects

Over two decades, the M|MBR team supplied MBR systems for installation into concrete tanks across hundreds of projects, building the operational database behind the standardized designs of NXT|MBR.

2024 to 2025

McKinney Roughs, Next Generation

The same site needed tenfold capacity growth and permanent infrastructure. NXT|MBR answered: 250,000 GPD, CROM² tankage, membranes 3x more efficient than the original, selected at competitive bid for $7.5M, about 30% below alternatives. Expandable to 500K GPD.

Angel of the Winds

2004, 2014, 2021, 2024

0.12 MGD

Santa Ana WWTP

2022

0.50 MGD

Yakama Nation

2008, 2017, 2025

0.36 MGD

St. Paul

2015, 2025

0.50 MGD

Plus hundreds of additional concrete tank MBR integrations across municipal, commercial, and industrial applications.

SMALL PLANT - HOLLOW FIBER

8 hrs

ZEEWEED → SUPRATEC
End-of-life replacement of hollow fiber equipment with a backward-compatible drop-in from a different manufacturer.
MEDIUM PLANT - HURRICANE HELENE

16 hrs

BIO-CELL2 → L+
Two trains, eight hours per train. Same product family, same geometry, the cleanest like-for-like case in the portfolio.
LARGE PLANT

20 days

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