EnviQ Submerged Ultrafiltration Membrane

QUA’s EnviQ® submerged ultrafiltration membranes have been specially developed to improve the ease of operation and maintenance of MBR facilities. EnviQ’s innovative design offers ultrafiltration quality product water with stronger and more rugged PVDF flat sheet and reinforced hollow membranes. The unique features in EnviQ consist of the membrane design and reverse diffusion and specially designed air diffusion, which maximize scrubbing efficiency, lowers pressure and reduces cleaning.

EnviQ Technology

Superior Membrane Technology

EnviQ membranes have billions of microscopic pores on the surface that form a barrier to impurities, allowing clean water to pass. Water is drawn through the pores by using gentle suction. EnviQ provides more consistent and higher quality effluent using an advanced PVDF reinforced membrane and proprietary diffuser system. The proprietary air diffuser design maintains a continuous flow of consistent/correct sized air bubbles. This then prevents solids from settling at the tank bottom or sticking to the membrane surface and eliminating septic conditions.

(Fig. 1 Hollow Fiber)

(Fig. 2 Flat Sheet Membrane)

In addition, EnviQ lowers the total installed cost of biological waste water treatment and recycle systems as compared to conventional activated sludge processes with tertiary filtration. EnviQ facilitates increased MBR adoption, resulting in more efficient biological wastewater treatment, smaller footprint and high quality effluent.

MBR combines conventional activated sludge technology with membrane filtration. MBR can be designed at a much higher MLSS concentration compared to conventional processes, giving advantages of lower Hydraulic Retention Time (HRT) and higher Sludge Retention Time (SRT). This reduces the footprint of the overall wastewater treatment. In addition, MBR replaces clarifier/ sedimentation tank as well as media and membrane filtration. The treated water is highly superior and can be used directly, or as feed to a reverse osmosis unit. EnviQ is available in modular construction. This ensures the ease of design as well as maintenance.

Advantages of EnviQ:


Value to Customer

Patented Frameless Membrane design :

Stable Performance
Eliminates dead pockets which results in reducing biofouling of membranes

Proprietary Fouling Resistant Membranes & Air Diffuser design :

Lower Opex
Can be operated at consistent flux and TMP results in lower power consumption and less cleaning frequency.

Ultrafiltration Membrane :

Higher Quality Filtration
Consistently lower filtrate SDI.

Simple Rack type modular design :

Easy to Install & Maintain
Requires less time to install and remove for maintenance

High solid loading :

Competitive Pricing


EnviQ RF

Reinforced Fiber Ultrafiltration Membranes

EnviQ redefines advanced wastewater treatment, setting a new standard for water purification. Its innovative design, combining a robust PVDF hollow fiber membrane with a unique air flow distribution system, guarantees a consistent production of ultrafiltration quality effluent. Manufactured using Non-solvent Induced Phase Separation (NIPS) process, EnviQ RF membranes hold exceptional mechanical strength and chemical tolerance. This enables EnviQ to effortlessly handle high feed turbidity across diverse wastewater applications, reshaping the possibilities of wastewater treatment

Download EnviQ RF Datasheet

Advantages of EnviQ RF:

Reinforced, Robust Hollow Fiber Membrane :

High tensile and mechanical strength membrane can handle high MLSS feed water with ease

Backwashable Membrane :

Sustainable transmembrane pressure during operation

Compact and Adaptable Design :

High product flow in a small footprint, with a flexible design that withstands variable feed water

High Quality Product Water :

Provides ultrafiltration quality water with >99% TSS reduction.

Unique Dual Airflow Distribution System :

Optimizes power consumption and reduces cleaning requirement

Complete Assembled Module :

Includes air header, product header, diffusers, frames, connectors and membrane.

EnviQ XL

EnviQ XL, QUA’s latest innovation brings the proven technology of EnviQ to larger flow capacities while providing a much smaller footprint. This robust offering has been designed to reduce the hassle of costly installation or provisioning more space than necessary within your facility, all with the proven reliability QUA is known for.

Download EnviQ XL Datasheet
Download EnviQ Datasheet

Advantages of EnviQ XL:


Ruggedness of Flat Sheet MBR
Well-anchored and self-supporting PVDF flat sheet UF
membrane for superior durability

Low Transmembrane Pressure (TMP)
Uniform distribution of true ultrafiltration-range
membrane pores provides consistently low TMP

Increased Flow with Smaller Footprint
Manages larger flows with less space requirements

Reverse Diffusion
Reverse diffusion using clean water ensures
consistent productivity with stable TMP

Easy to Assemble and Install
Fewer cartridges and internal connections, allowing
easier assembly and faster installation at site

Simple Rack Type Modular Design
Allows easy removal and maintenance of membrane cartridges.

Optimized Energy Consumption
Low air flow requirement and high productivity
allow for optimized energy consumption

No External Frame
Provides a “membrane only” surface to minimize biofouling.