Seawater Intake and Outfall Systems

Potential Users: Power and desalination plants, petrochemical and gas complexes, refineries, aquaculture and fish farms, municipal wastewater systems, HVAC, Etc.

This virtually unlimited flow capacity intelligent site-recognizing intake head holistically protects aquatic life; no impingement or fish mortality; it is unattractive to aquatic organisms, sediments, seaweed, or debris; it is selective and delivers clean water; it utilizes local marine currents to sweep away and into the ambient again seaweeds, fish-small and young, jellyfish, sediments and debris if they enter the InvisiHead. The no-return flow is at the outlet. It is out of phase of the major flow channel by 90 °thus providing safe passage to marine life to get back into the environment again through the opposite end. In its return to the ambient, flow is in phase with the local currents direction thus all types of onshore mechanical screening-fixed or traveling or both-are no longer required. Negligibly low head loss at about 0.00017m or a pressure drop of 0.017mb means almost 0$ spent on energy. Nearly all pumping energy goes to overcome friction inside the intake pipe. As an outfall, the InvisiHead safely discharges, disperses, mixes and dilutes RO brine, cooling water, and wastewater. The discharges reach equilibrium and disappear into the ambient within the vicinity of the outfall at the beginning of the near field mixing zone. The InvisiHead operates in full compliance with the US EPA Section 316(b) of the Clean Water Act governing the use of cooling water at power plants and industrial facilities (the Final Rule). It Protects biodiversity values of the site and avoids impacts on native vegetation or fauna. No ecological adverse effects are associated with The InvisiHead.

Starting January 2013 the InvisiHead flow transition through the sequential 4 flow phases was upgraded to further improve flow quality and drastically reduce or eliminate flow of sediments or seaweed if present in the water column; InvisiHead flow velocities: 1. approach is 0.002m/s (0.0066 fps), 2. inlet is 0.09m/s (0.295 fps), 3. outlet is 0.11-0.12m/s (0.36-0.39 fps). No environmental adverse impacts are associated with seawater intake of cooling water or concentrate discharges; low on SDI. Ideal for RO systems. Site and application recognition enables the InvisiHead to fine-tune its flow-management operation and reduce SDI.

NO MORE TROUBLES: Just turn-on the seawater pumps at the pump house and relax. No more clogging. No more pressure drop. No more alarms. No more backwash or air bursting. No more dead fish or any of the aquatic life. No more marine growth or sediments settling in the intake pipe. Simply, no more worries and no more operation or maintenance. All remain in DAY 1 condition for decades to pass.