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

Research

New process for algae to treat effluent

February 3, 2020
AlgaeIndustryMagazine.com

Algae researchers Navid Moheimani and Parisa Bahri

The Naked Scientists report that a team at Murdoch University Algae R&D Centre, in Perth, Western Australia, led by Navid Moheimani and Parisa Bahri, has developed a unique process that uses algae to treat effluent.

The process involves first passing the effluent through an anaerobic digester, which converts the organic material in the waste into biogas (methane). This can be used to generate electricity. The remaining liquid and suspended material produced by the digester is then fed to the algae.

This material is very high in ammonium, toxic to most organisms, and only specific algae can grow under these conditions. As the algae multiply, consuming the organic material, nutrients and minerals, they also remove a significant amount of carbon dioxide. The result is algal biomass with a very high protein content, and clean water.

So far, the team has successfully treated piggery effluent using this process. The biomass generated can be used as animal feed, fertilizer or an aquaculture feed. They have shown that the biomass can be safely used as a feed for juvenile marron and as a sustainable organic fertilizer. The biomass can also be digested by pigs. They’ve also started to investigate using their technique to clean up abattoir effluent, and further work with domestic and dairy effluents are also underway.

This project requires a good understanding of biological and engineering systems and processes. While algal cultivation depends upon understanding the biology of algae, there are many aspects of engineering that also need to be integrated into the process. Their approach will only work if they successfully integrate the biology and engineering.

The researchers see this approach is an example of a circular economy: the process not only cleans the wastewater and reduces the carbon footprint, but it also generates revenue through the generated biomass. A preliminary economic analysis indicates that, overall, the cost of biomass is around $2 for each kilogram they produce.

At this rate, the process seems to be generating positive cash flow, especially if the carbon credit and clean water value is added to the overall revenue. On the socio-economic side, they also significantly reduce the water way contaminations as algae concentrate most of them in their biomass.

Read More

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
E.A. Crunden writes in thinkprogress.org that Florida’s first gubernatorial debate was dominated by environmental and climate issues, with an emphasis on the state’s alga...
“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...
Tavelmout Biofarm (TVMB), a Bruneian subsidiary of Tabérumo Corporation — a pioneer in the large-scale cultivation of spirulina using photobioreactors — has launched thei...
San Diego, CA and Kailua-Kona, HI-based Cellana, Inc. has signed an Asset Purchase Agreement with Cyanotech Corporation for the sale of Cellana’s six-acre production and ...
New Food Magazine reports that a new Danish project called “Microalgae for Food” has received DKK 750,000 (approximately $110,000US) in co-financing from the Ministry of ...
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...
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...
The problem of access to safe drinking water in most parts of Bangladesh is a persistent challenge. Now, a team of scientists from Uppsala University, Sweden, and Dhaka U...
Cécile Barbière writes for Euractive.fr (translated by Rob Kirby) that, in large greenhouses formerly home to the tomatoes and cucumbers of the market gardening Groupe Ol...
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...
The Algae Biomass Organization (ABO) reports the introduction of the Algae Agriculture Act of 2018 (H.R. 5373), a bill that would give algae cultivators and harvesters ma...
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...