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
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...
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 ...
When there is a combination of population increase, wastewater discharge, agricultural fertilization, and climate change, the cocktail is detrimental to humans and animal...
In collaboration with fellow researchers, chemists at the Technical University of Munich (TUM) have developed a process that, according to initial calculations, can facil...
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...
Milenio.com reports that BiomiTech, a Mexican company, won a prestigious innovation award for its air purification system at the Contamination Expo Series 2018 held in Bi...
Researchers at the University of California San Diego and the University of Cambridge have 3D printed coral-inspired structures that are capable of growing dense populati...
Cody Nelson writes for MPRNews.org that a team of University of Minnesota-Duluth researchers wanted to know how shortening winters — and less ice cover on lakes — might i...
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...
Trade Arabia reports that the Oman Centre for Marine Biotechnology (OCMB) recently signed a memorandum of understanding with Swedish Algae Factory to support the domestic...
Gerard de Souza reports for the Hindustan Times that researchers at the CSIR-National Institute of Oceanography Goa (India) have found a cleaner, cheaper method to grow b...
The ability to produce oil from water and carbon dioxide with the help of light is something that is essentially common to all plants, from unicellular algae to the giant...