macroalgae Articles
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Biosorption performance of red and green marine macroalgae for removal of trace cadmium and nickel from wastewater
The ability of red (Corallina officinalis L., Porphyra columbina) and green (Codium fragile) marine macroalgae to remove Cd(II) ions from dilute aqueous solutions, mimicking wastewaters with low metal concentrations, was explored. Under pre-established equilibrium conditions, Corallina and Porphyra attained almost complete removal at 1 g/100 mL. Equilibrium sorption isotherms of cadmium were ...
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Project - Macro Value
There is an increasing demand for new sustainable marine sources for products within food, feed, cosmetic, pharmaceutical and the energy sector. The European seaweed – or macroalgae - industry relies on wild harvest and growth is limited by ecological sustainability considerations. But large scale macroalgae cultivation can satisfy this demand. However, macroalgae cultivation needs ...
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Macroalgae of Iridaea cordata as an efficient biosorbent to remove hazardous cationic dyes from aqueous solutions
In the present work, Iridaea cordata (IC), a red marine macroalgae, was used as an efficient biosorbent for the removal of crystal violet (CV) and methylene blue (MB) dyes from aqueous solutions. The effects of pH (5, 7, and 9) and IC concentration (1, 3, and 5 g L−1) on the biosorption were studied through a 32 full factorial design. Under the optimal conditions (pH: 7, biosorbent ...
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Macroalgal standing crop estimate – fast method using ultralight aircraft
A simple and low-cost method for monitoring macroalgal standing crops in shallow water consists of flying over and photographing the areas in an ultralight aircraft to determine the surface area of macroalgal mats. In the proposed method, photos are analysed by AUTOCAD software and mat density is then estimated in the field. Using mat density and bottom surface covered by mats, a rough estimate ...
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Modifications of macrobenthos assemblages on land–based fish farm phytotreatment basins in the Orbetello lagoon
In the Orbetello lagoon basin there are some intensive land–based fish–farming facilities which contribute to cause a significant cyclic development of the opportunistic chorophycea Ulva laetevirens, and consequent serious decay events in spring and summer. To minimise the nutrients' impact, fish farming was supplied with phytotreatment system. The purpose of this study was to ...
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DOE Requests Information About Algal Feedstocks For Future Program Planning
On September 3, 2015, the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy’s Bioenergy Technologies Office (BETO) released a Request for Information (RFI) titled “High Yields through Productivity and Integration Research.” BETO is seeking input from industry, academia, and other stakeholders regarding supply systems and services for the cultivation, ...
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Macro Cascade Project
MACRO CASCADE will prove the concept of the cascading marine macroalgal biorefinery. This is a production platform that covers the whole technological chain for processing sustainable cultivated macroalgae biomass – also known as seaweed – to highly processed value added ...
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Project - MacroPro
Seafood aquaculture is one of the fastest growing food production sectors, and there is a growing demand for organic farmed aquaculture products in many countries. Therefore, it is urgent to find alternative sustainable feed ingredients for aquaculture feeds to address these issues. A widely available but underutilised Nordic bio-resource is macroalgae (seaweed). Traditionally, macroalgae have ...
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Project - MacroBiotech
The purpose of MacroBiotech was to continue development - and prove the technical and commercial viability - of a concept for macroalgae cultivation in the open ocean. Cultivation was here used in the broadest sense and encompasses seeding, cultivation, harvesting and bio-refining. The project aimed to develop efficient methods for these activities, including harvesting methods to achieve storage ...
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Project - MAB4
The MAB4 project focus on cultivating seaweed on a large scale and using it for food and skin products. While running out of farmland, new opportunities show up for growing sea-crops in the oceans. Many seaweed species are highly nutritious and rich in bioactive substances, those can serve as ingredients for food and cosmetics. In Far East, longlines of seaweed – also known as ...
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Project - AquaVitae
“New species, processes and products contributing to increased production and improved sustainability in emerging low trophic, and existing low and high trophic aquaculture value chains in the Atlantic” AquaVitae aims to increase aquaculture production in and around the Atlantic Ocean by developing new species, processes and products. The focus of the project is placed on low trophic ...
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Biosorption of methylene blue by nonliving biomass of the brown macroalga Sargassum hemiphyllum
The ability of Sargassum hemiphyllum to remove methylene blue (MB) from aqueous solution was evaluated. Batch experiments were conducted to examine the effects of parameters such as initial pH, contact time, biomass dose and initial dye concentration on adsorption capacity. S. hemiphyllum before and after MB adsorption was characterized by Fourier transform infrared spectroscopy (FT-IR), ...
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Could Our Energy Come from Giant Seaweed Farms in the Ocean?
One day in the future, the Pacific Ocean could be home to kilometers of seaweed farms tended by submarine drones and waiting to be turned into fuel. This is the vision of Marine BioEnergy, a start-up backed by the Advanced Research Projects Agency–Energy (ARPA-E). The U.S. government agency is funding the company, along with a handful of related projects, because it views the open ocean as ...
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Project - MacroSystems
In response to a call for proposals by the Advanced Research Projects Agency - Energy (ARPA-E) MARINER program through the U.S. Department of Energy, an international research team under the project name of MacroSystems, primed by Ocean Rainforest, Inc., has been asked to demonstrate the economic and social opportunities of offshore cultivation of seaweeds, specifically a species named ...
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