Click here for more information about Algenuity
Click here for more information about LiqofluxPhenometrics Buy 3 Get 1 Free
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 ©2010-2020 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
John Cumbers and Kevin Costa report for Forbes that Berkeley-based biotech startup Checkerspot has announced a partnership with Gore — the makers of Gore-Tex — to use syn...
Paul Brinkmann reports for UPI.com that Florida Atlantic University and three other research schools have launched studies this year to test people who live near the coas...
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 ...
Environmental Technology magazine notes that the difficulty in predicting how algae blooms will develop lies in their variform nature. With a multitude of different bloom...
Cornell University researchers have sequenced and analyzed the genome of a single-celled alga that belongs to the closest lineage to terrestrial plants and provides many ...
At the Technical University of Denmark (DTU), Science Nordic.com reports, researchers are investigating bioluminescent algae, to determine whether bioluminescent organism...
AlgaEnergy, a Spanish biotechnology company specializing in the production and commercial applications of microalgae, and Yokogawa Electric Corporation, a leading provide...
Alice Klein reports that a skin patch made of living blue-green algae speeds up wound healing in mice and may help to treat chronic wounds in people with diabetes, accord...
The Los Alamos Reporter highlights new research by New Mexico Consortium scientist, Joseph Msanne, along with colleagues Shawn Starkenburg and Juergen Polle, that looks a...
Edinburgh-based biotech startup MiAlgae has received an investment of £1 million ($1.3USD) to focus on the commercialization of its microalgae products that use co-produc...
Julianna Photopoulos writes in Horizon EU Research and Innovation magazine that UK start-up Skipping Rocks Lab aims to use natural materials extracted from plants and sea...
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...