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 ©2010-2019 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
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...
Steve Fountain writes in fortstocktonpioneer.com that, amid the 800-page law that last month set the country’s farm policy through 2023, is the expansion of federal suppo...
Alexander Richter writes in thinkgeoenergy.com that Israel-based Algaennovation last week signed a 15-year contract with Icelandic energy utility and operator ON Power fo...
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...
The Swiss Algae Consortium Association (SWALG) was founded in May 2018 as a non-profit organization that serves as a platform for algae-related activities in Switzerland ...
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 ...
Israeli-based Algatechnologies, Ltd. (Algatech) has become the major shareholder in Supreme Health New Zealand, Ltd. (Supreme) to supply the rapidly growing markets in Ch...
Researchers at Los Alamos National Laboratory and partner institutions have provided the first published report of algae using raw plants as a carbon energy source. The r...
Nature.com reports that swimming algae have been enlisted to carry drugs to individual cells, raising the prospect that such “microswimmers” could deliver targeted therap...
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...
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...