Click here for more information about Algenuity
Click here for more information about Liqofluxphenometrics515R1
Visit cricatalyst.com!Evodos Separation Technology

Technology

Can multiple effect evaporators be replaced with algal technology?

May 1, 2016 — by Dr. V Sivasubramanian
AlgaeIndustryMagazine.com

Slope tank for reverse osmosis reject treatment showing algal growth

Slope tank for reverse osmosis reject treatment showing algal growth

Amultiple-effect evaporator (MEE) is a system designed for efficiently using the heat from steam to evaporate water. This equipment is recommended by pollution control agencies to evaporate industrial effluents and R/O (reverse osmosis) rejects with very high total dissolved solids (TDS) and it results in huge amounts of hazardous solid waste.

In India MEE is extensively used in R/O reject management of textile and leather industries. The major problems with MEE are the costs of installation and operation and finally management of solid waste generated due to evaporation.

Because of these reasons industries have been looking for alternate technology to handle R/O rejects. Phycospectrum Environmental Research Centre (PERC), in India, has recently developed and successfully demonstrated microalgae-based technology at Brintons Carpets Asia pvt ltd, India, very successfully.

Comparison of multiple-effect evaporator (MEE) & Algae Technology (Based on 100 M3/day plant)

Comparison of multiple-effect evaporator (MEE) & Algae Technology (Based on 100 M3/day plant)

The R/O reject from Brintons has a TDS of 20,000 to 25,000 mg/L and this was continuously loaded into a 10 KL demonstration plant in which selected microalgae were also grown. The effluent with algae was allowed to run on a slope, for capturing sunlight and heat, and to evaporate faster. After a short initial salt buildup the system stabilized with no further increase in TDS, and further addition did not increase TDS. Algal biomass produced was collected on regular basis from the slope roof that is being analyzed for possible utilization.

The system at Brintons Carpets is now stabilized, and has started producing almost 0.75 g of dry algal biomass per liter per day; and water is getting evaporated resulting in zero sludge. This system is currently being scaled up.

This successful implementation has proved the efficiency of an algae-based evaporation system in replacing MEE for handling high TDS waste streams like R/O rejects of various industries, and more specifically textile and leather industries.

—Dr. V Sivasubramanian is Director of the Phycospectrum Environmental Research Centre (PERC), Chennai, India.

More Like This…

Copyright ©2010-2018 AlgaeIndustryMagazine.com. All rights reserved. Permission required to reprint this article in its entirety. Must include copyright statement and live hyperlinks. Contact editorial@algaeindustrymagazine.com. A.I.M. accepts unsolicited manuscripts for consideration, and takes no responsibility for the validity of claims made in submitted editorial.

twittertopbarlinks_eventstopbarlinks_requesttopbarlinks_archives

From The A.I.M. Archives

— Refresh Page for More Choices
42 Technology has been appointed by LabXero, acoustic particle filtration technology company, to help develop pilot-scale biomanufacturing equipment that could significan...
“The Israeli food-tech industry has been growing in leaps and bounds in recent years and is taking a leading role worldwide with a broad range of innovative companies and...
Israeli-based Algatechnologies, Ltd. (Algatech), is teaming up with the Italian R&D company, Sphera Encapsulation S.r.l (Sphera), to develop innovative functional ingredi...
Global EcoPower (GEP), of Aix-en-Provence, France, has signed a 5-year partnership contract with the French Alternative Energies and Atomic Energy Commission (CEA). This ...
Foodbev.com reports that French marine ingredients company Algaia will install a new specialty seaweed extract unit at its facility in Brittany, France, after securing €4...
Hayley Dunning writes from the Imperial College of London that a new discovery has changed our understanding of the basic mechanism of photosynthesis and should rewrite t...
Judith Lewis Mernit writes in e360.yale.edu that an experiment being conducted by animal science professor Ermias Kebreab at the University of California, Davis, is testi...
Amy Thompson writes in Space.com that SpaceX successfully launched its 15th Space Station cargo-resupply mission on Friday, June 29; carrying a payload of experiments des...
Algae and corals have been leaning on each other since dinosaurs roamed the earth, much longer than had been previously thought, according to new research led by scientis...
Alexander Richter reports for Geothermal Energy News that, among the many examples offered during a recent conference in Pisa, Italy, on Perspectives and Impact of the Gr...
Mazda U.K. has announced that they are currently involved in joint research projects and studies as part of an ongoing industry-academia-government collaboration to promo...
AlgaEnergy, a Spanish biotechnology company specializing in the production and commercial applications of microalgae, and Yokogawa Electric Corporation, a leading provide...