IntelliBIO MBR - Centralized and Industrial Wastewater Treatment Plants

Wastewater Treatment Plants with Membrane Technology consist of:

  • Pumping station;
  • Automatic sieve installation (fine sieve);
  • Grit – fat separator;
  • Homogenizing basin;
  • Activated sludge biological treatment with nitrification, denitrification Reduction of organic substance expressed by CB05 and aerobic stabilization of the sludge;
  • Separation of biological sludge through submerged MBR-Module;
  • Sludge treatment: storage, conditioning and dehydration;

Centralized Wastewater Treatment Plants with Submerged MBR-Module based on Flat Sheet Membranes in Enameled Steel Basins

The ultrafiltration, as main element of the technology promoted by C&V Water Control, takes place under the pressure of the water column above the membranes module, from outside to inside.  The size of the membrane pores is 0.04 µm, filtering the effluent. The treated effluent has no solid suspended matter, nor phosphorus as deposit, bacteria, oil or emulsified fat,  macromolecules or colloids.

Unlike the classical solution with gravitational separation of the sludge formed by the treated water, the physical separation through ultrafiltration membranes is much more efficient for it does not allow that the sludge is removed in the treated effluent (case met due to the inefficient gravitational separation or due to sludge flotation in the secondary settlers).

The ultrafiltration membranes have a long lifetime, of approx. 10 to 15 years, although it could be replaced in a phased manner, as 20 to 30% membranes / case.


In terms of the advantages offered by the technology promoted by C&V Water Control, these could be structured in two big categories:

  • Constructive
  • Technological

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

1. Construction period reduction

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

2. 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

3.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

4. 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

5. 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

  1. 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 re-utilization both in municipal and industrial applications, which may lead to significant water savings (e.g. the water could be used for irrigation systems).

2. 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.

3. 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.

4. Other

  • Increased filtration flow;
  • Low energy consumption.

C & V Water Control offers a wide range of integrated equipment in sewage treatment plants of varying capacities, sized according to the quality parameters of the influent and the amount of waste water to be treated. The general wastewater treatment flow presented in the diagram below includes all the steps necessary for the treatment so that the water evacuation presents the quality parameters imposed by NTPA 001/2005 and NTPA 011/2005 norms for evacuation in the natural emissary or NTPA 002/2005.

The general wastewater treatment stream comprises the following treatment steps:

  • Mechanical step – through screening with a high-capacity small filter used for solid-liquid separation;
  • Physical-chemical stage – in dissolved air flotation units. Dissolved air flotation is a process used to separate solid particles (suspended solids), liquids (oils and fats) and to separate and concentrate sludge. When the flotation process is preceded by a coagulation-flocculation treatment, the yield in the separation of solids in the suspension is much higher, with no problem at a true yield of 95%, thus providing a reduction of CB05 Of at least 40%, depending on the type of waste water;
  • Biological step achieves organic matter reduction, nitrification, denitrification and biological reduction of phosphorus in active sludge ponds;
  • Final disinfection – The stage of final disinfection of the purified water before its discharge into the emissary is done by chlorination using chlorine dispensing pumps, ultraviolet sterilization or membrane ultrafiltration;
  • The sludge processing step – the sludge from the wastewater treatment process is subjected to processing processes, depending on the requirements of the beneficiary and the rules imposed by the legal regulations in force.


  • Meat processing factories
  • Milk processing factories
  • Slaughterhouses (cattle, cattle, chickens, pigs)
  • Wine Making
  • Cannery
  • Biodiesel plants
  • Alcohol factories
  • Other applications

Wastewater Treatment Plant Components – Industrial Applications

Static screen TE  / Rotary screen TE / TR

Static screen is a filter used on solid-liquid separation, on the wastewater treatment plant. process with almost no maintenance requirements and no energy input at all. The static screen consists mainly of a body made of Polyester reinforced with fiberglass and a stainless steel wire mesh frame that channels the waste water to be treated.

The rotary screen is a high capacity filter with sizes much smaller than those of other rotary screens in its class, used for solid-liquid separation. The filtration capacity is five times higher for this type, than the static sieves, the possibility of being blocked by residues is practically reduced, due to the self-cleaning system.

Disolved air flotation unit – FRC
The main purpose of the dissolved air flotation unit – FRC is to remove the fats, emulsified oils and very fine suspended matters. Before the entry to the flotation unit, the wastewater is mixed with coagulating agent and flocculating agent for a good efficiency in retaining solid matter, phosphorus and biodegradable organic agent. The FRC systems need reagent admixture for pH adjustment, coagulation and flocculation. These reagents are brought in the reaction tubes by the metering pumps.
The unit is provided with pH sensor and pHmeter.

Sludge filter press – FP

The filter press is a sludge dehydrator, designed to solve drying problems both industrial and urban waste sludge.
Such units could be operated in the manual mode (FPM), semi-automatic mode (FPSA) or automatic mode (FPA).
The press filter is supplied for any application, adapted according to size and function.