Wastewater treatment plants IntelliBIO MBR
- Urban and Municipal Applications -


The ultrafiltration membrane treatment plants consist of:

Pumping station
Automatic sieve installation (fine sieve)
Fat separator
Homogenizing basin
Biological purification with activated mud with nitrification, denitrification; Reduction of organic substance expressed by CB05 and aerobic stabilization of the sludge
Separation of biological sludge through ultrafiltration membranes
Sludge treatment: storage, conditioning and dehydration


Ultrafiltration, as a central element of the technology promoted by C & V Water Control, is carried out under the pressure of the water column above the membrane module from the outside to the inside. The pores of the membranes are 0.04 μm in size, performing the effluent filtration. The purified effluent will be free from solids in suspension, phosphorus precipitate, bacteria, oil and emulsified fats, macromolecules and colloids.

Faced with the classic solution with gravitational separation of the sludge formed by the purified water, physical separation through ultrafiltration membranes is more efficient, not allowing the sludge to be discharged into the purified effluent (situation due to inefficient gravitational separation or due to its flotation in secondary decanters). Ultrafiltration membranes have a lifetime of approximately 10-15 years, and their replacement is staged in a percentage of 20-30% membranes / box.


C & V Water Control stations have many advantages, which can be structured in two categories: constructive and technological.

Constructive advantages of a treatment plant with biology in enamelled steel tanks and ultrafiltration membranes

Construction period reduction

  • Delivery within max. 2 months from contract signature
  • Commissioning within max. 3 months from contract signature

Reduced civil constructions

  • Reduced ground footprint both for the biological treatment tanks and for the secondary settlers replaced by the membrane filtration tanks
  • Minimum requirement of specific civil construction processes, minimum water consumption

Easy-to-built foundations, even in complicated geological conditions

  • No high depth excavation is needed
  • The soft structure of the tanks significantly reduces the structure of the basic foundation

Easy “turn-into-liquid” at the end of the lifetime

  • After the expiry of the operation period, the tanks could be disassembled very easily and recycled

Minimum and simple maintenance

  • Extremely soft and easy-to-mount resistance structure
  • Automatic “stand-by” for any main equipment
  • Easy operation

The technological advantages of a treatment plant with biology in enamelled steel tanks and ultrafiltration membranes

High quality of the treated effluent

  • High quality of the treated effluent (< NTPA001)
  • The discharged effluent is missing suspended materials. The bacteria is 99% removed by using ultrafiltration membranes (pore size = 0.04 µm). Even the viruses could be separated through absorption. This way, due to complete separation, the residual organic agent is low. The hygiene standards of the EU regulations for washing water (75/160/EWG,1975) are based on MBR systems. Due to the quality of the effluent obtained by using this procedure, the effluent shows an increased potential of reutilization both in municipal and industrial applications, which may lead to significant water savings (e.g. the water could be used for irrigation systems).

Modular positioning

  • High flexibility due to the modular design that allows to increase very easily the treatment capacity
  • Sequential completion of other units depending on the construction phasing of the sewerage system

Long lifetime

  • The utilization duration of the enamelled steel tanks is > 40 years; the enamelled steel tanks represent abrasion resistance and increased chemical resistance (pH:2-13)
  • The lifetime of the ultrafiltration membranes is of approx. 15-20 years; the replacement could be performed in a phased manner in a percentage of 20 to 30 membranes/case


  • Increased filtration flow
  • Low energy consumption