The Modified Fouling Index Ultrafiltration constant flux for assessing particulate/colloidal fouling of RO systems

Reliable methods for measuring and predicting the fouling potential of reverse osmosis (RO) feed water are important in preventing and diagnosing fouling at the design stage, and for monitoring pre-treatment performance during plant operation. The Modified Fouling Index Ultrafiltration (MFI-UF) constant flux is a significant development with...

Beira Urban Water Master Plan 2035

Het probleem in Beira (Mozambique) is dat de stad een matig- tot sterke bevolkingsgroei kan verwachten tot en met 2035. De huidige drinkwaterzuivering staat 100 km van de stad af door verzilting van de Pungue-rivier. Uiteindelijk is het gunstiger gebleken om de hoofd-transportleiding te vervangen en de zuivering uit te breiden, in plaats van een...

Algal blooms and Membrane Based Desalination Technology

Seawater desalination is rapidly growing in terms of installed capacity (~80 million m3/day in 2013), plant size and global application. An emerging threat to this technology is the seasonal proliferation of microscopic algae in seawater known as algal blooms. Such blooms have caused operational problems in seawater reverse osmosis (SWRO) plants...

The effect of pre-treatment with Reverse Osmosis on biological stability in a drinking water treatment plant

Particulate and organic matter fouling of seawater reverse osmosis systems: Characterization, modelling and applications

Particulate/colloidal and organic fouling in seawater reverse osmosis (SWRO) systems results in flux decline, higher energy costs, increased salt passage, increased cleaning frequency, and use of chemicals. In practice, indices like SDI and MFI are used to assess particulate fouling, but they are performed at very high initial flux (> 1500 L/m2...

Development of an environmental impact assessment and decision support system for seawater desalination plants

Seawater desalination is a rapidly growing coastal-based industry. The combined production capacity of all seawater desalination plants worldwide has increased by 30% over the last two years: from 28 million cubic meters per day in 2007—which is the equivalent of the average discharge of the River Seine at Paris—to more than 36 million cubic...