BRINE V+1

PIONEERING IN MARINE VENTURI TECHNOLOGIES

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BRINE V+1

Cost-efficient and Reliable

The technological leap forward to overcome the environmental regulation barriers that are holding back the full deployment of desalination plants.

BRINE V+1 is based on venturi jet eductors, and represents the solution to eliminate the negative effects of brine discharges by an easy installation in current and planned desalination plants.

The suction zone is 360° around the narrow section, ensuring a suction capacity of 4 units of volume of ambient seawater to 1 of brine output, multiplying the final flow by five and enhancing the mixing capacity between the brine and the seawater towards the near-field dilution.

Modelling and simulations based on technical studies and Computational Fluid Dynamics (CFD) for far and near field mixing predictions, estimate the potential dilution capacity of V+1 in more than 2,3 times higher than conventional diffusers (131% more efficient). (bottom case study)

Benefits

BRINE V+1 represents the best solution for protecting the marine environment by using brine management technology while minimizing costs.

The only specific diffuser for brine discharges with an internal dilution system that causes the brine dilution up to 43%.

  • Reduction of the mixing zone and the length of the outfall
  • Reduction of the impact zone of the plume
  • Elimination of the interference with the intake approaching the outfall and the intake
  • First Smart Diffuser which allows the real-time monitoring of discharges dilution
  • Environmental regulations compliance.

Economic Savings

  • Up to 30% cost reduction from shorter diffuser section and the construction of the discharge system (CAPEX)
  • Up to 25% maintenance costs reduction (OPEX)
  • Up to 50% cost saving from annual “Environmental Monitoring Plan” thanks to the real-time report processed by Smart Diffuser

Have a question? Have a look at our FAQ.

What are the advantages of Venturi Diffusers in comparison with Duckbill Diffusers?

Venturi-type diffusers as BRINEV+1 benefits from an ingenious way to use the venturi physical effect to greatly increase the dilution of the brine in the marine environment. Due to its internal dilution rate, the use of venturi-diffusers enables a significant reduction of the submarine outfall length while reaching environmental requirements, as well as spacing between the intakes and the outfalls while avoiding re-entrainment. Moreover, achieving all necessary dilutions within the near – field allows for the greatest amount of flexibility in the final outfall location without relying on far-field dispersion.

Could the use of this technology potentially lead to an increase in energy costs?

No, BRINE V+1 doesn’t require extra energy consumption because it is a passive system that doesn’t  require pumping that would increase operating expenses (OPEX).

How is the installation process?

Venturi diffusers can be easily installed in both new and existing outfalls. Normally the devices are secured to the seabed with clamps and mooring blocks, preventing leaks or accidental discharges. Also, not having moving parts reduces maintenance costs and guarantees their structural strength (currently we are undertaking tests for BRINEv+1 standardization in high-density polyethylene).

How the solution is designed?

ECOStec experience has allowed the company to specialize in the design of the optimal diffuser system configuration (techno-economically) to each case, including co-discharge with wastewater or cooling water. BRINEV+1 is designed to be adaptable to any discharge flow and pipe diameter.

What is the headloss that the technology could generate, especially at peak flows?

The Brine V+1 diffuser head doesn’t produce load losses added to the system. To achieve the optimal operation of the device is required requires optimal design speed, therefore the diffuser device will produce load losses related to the jet output speed. Brine V+1 provides reducers with a reduction angle of 30° to minimize the losses associated with it and the greater efficiency in dilution allows a shorter length of the diffuser section with an estimated reduction around 1/3 of conventional diffusers.

What are the references of the technology?

The initial optimized prototypes were installed in two desalination plants in Gran Canaria with capacities of 280 l/s and 208 l/s (in operation and maintenance-free since 2012 and 2016, respectively) and consequently ECOS has started the diffuser commercialization in several regions (Latin America, Middle East, Mediterranean Sea, and West Africa) with the first installation of Brine V+1 in Malta (August 2018).

Contact us

928 42 69 13

Ecos, Estudios Ambientales y Oceanografía S.L.

Calle Alfred Nobel, Las Palmas de Gran Canaria, Spain