Algae Farming Articles
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`Legal, Regulatory & Political Considerations In Commercializing Algal Products` Panel Presented At ABO, October 1, 2015
Hear BRAG's Richard E. Engler, Ph.D., and other panelists on Thursday, October 1, at the Algae Biomass Summit, which runs September 29 - October 2, 2015, in Washington, D.C. This is where leading producers of algae products go to network with industry suppliers and technology providers, where project developers converse with utility executives, and where researchers and technology developers rub ...
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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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EPA Announces Three Webinars Covering PMN Submission Systems And Inviting Discussion Of Biotechnology Algae Project
On August 12, 2015, the U.S. Environmental Protection Agency (EPA) announced three webinars to review the new features of the updated online Premanufacture Notifications (PMN) Submission System. The new web-based submission system for the Toxic Substances Control Act (TSCA) Section 5 submissions is replacing the ePMN reporting software that is currently in use. The first webinar is on August 26, ...
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The role of a hybrid phytosystem in landscape water purification and herbicides removal
The performance of a hybrid phytosystem in landscape water purification and herbicides removal was investigated. The phytosystem operating in an arboretum is located in the Minhang Campus of Shanghai Jiao Tong University, China. The phytosystem is composed of two purification stages: sedimentation Stage 1 without external air supply; and Stage 2 with an external air supply. Stage 2 is also ...
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Algae biomass cultivation in nitrogen rich biogas digestate
Because microalgae are known for quick biomass growth and nutrient uptake, there has been much interest in their use in research on wastewater treatment methods. While many studies have concentrated on the algal treatment of wastewaters with low to medium ammonium concentrations, there are several liquid waste streams with high ammonium concentrations that microalgae could potentially treat. ...
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Nickel effects on productivity of algal periphyton communities
In order to evaluate the long-term (30-day) influence of nickel on biomass of periphyton communities, indoor artificial streams were used with differing nickel concentration (2.5, 5, and 7.5 mg/l). Physical and chemical factors (pH, NO3-N, PO4-P, dissolved oxygen, total suspended solids, conductivity, total dissolved solids, biochemical oxygen demand, and chemical oxygen demand) were measured ...
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Using ozonation to eliminate the inhibition of soluble algal products (SAP) of Scenedesmus sp. LX1 on its growth in microalgal cultivation for biomass/bioenergy production
Water recycling is an effective way to reduce water consumption in the industrialization of microalgae-based biomass/bioenergy production. The soluble algal products (SAP) which inhibit the microalgae growth will accumulate in the recycled water. Therefore, the ozone oxidation treatment of SAP produced by Scenedesmus sp. LX1 was studied to reduce the inhibition of SAP. The experimental ...
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Monitoring greenhouse gases from biofuel crops - Case study
Global issues such as climate change and energy security have driven rapid growth in renewable energy production – wind, solar, tidal, geothermal, hydro, biofuels etc. However, logically, each of these methods should deliver a net benefit in terms of greenhouse gas (GHG) reduction, so researchers in the United States have employed portable FTIR analysers to study the GHG emissions of ...
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Monitoring greenhouse gases from biofuel crops
Global issues such as climate change and energy security have driven rapid growth in renewable energy production - wind, solar, tidal, geothermal, hydro, biofuels etc. However, logically, each of these methods should deliver a net benefit in terms of greenhouse gas (GHG) reduction, so researchers in the United States have employed portable FTIR analysers to study the GHG emissions of biomass ...
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How did palm oil become such a problem — and what can we do about it?
Production of this ubiquitous ingredient is devastating for the environment. Solutions are complex, but they are out there. Last August, from the window of a jet high over Sumatra, I counted nearly a dozen plumes of smoke rising from the vast jungles and plantations below. Some more than a half-mile wide, they looked like pillars holding up the sky. That week the Indonesian Disaster Mitigation ...
By Ensia
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Investigation of initial pH effects on growth of an oleaginous microalgae
Chlorella sp. HQ for lipid production and nutrient uptakeUsing microalgae for synchronous biodiesel production and wastewater treatment is a promising technology. The growth, lipid accumulation and nutrient uptake characteristics of an oleaginous microalga Chlorella sp. HQ were evaluated at different initial pH from 5.0 to 11.0. The pH values changed towards neutrality and ended in the range 6.0–9.0 without artificial control. The alkalinity ...
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Control of algal production in a high rate algal pond: investigation through batch and continuous experiments
For decades, arid and semi-arid regions in Africa have faced issues related to water availability for drinking, irrigation and livestock purposes. To tackle these issues, a laboratory scale greywater treatment system based on high rate algal pond (HRAP) technology was investigated in order to guide the operation of the pilot plant implemented in the 2iE campus in Ouagadougou (Burkina Faso). ...
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Conical Bottom Tanks-Backstory - Case Study
Originally we only offered the flat bottom tanks in our line of tanks. Eventually, fit was discovered that they are ideal for growing algae with natural sunlight, however some growers wanted to something a little more. Several customers wanted an easier way to harvest the algae from the growth chambers, particularly the bottom. Siphoning works for the flat bottom tanks, and is a great option for ...
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Photobiology of microalgae mass cultures: understanding the tools for the next green revolution
Several obstacles and limitations currently prevent the industrial exploitation of microalgae for feed, food and biofuel production. Photobioreactors (closed systems for algae cultivation) suffer from high-energy expenditures for mixing and cooling, while cultures in large-scale open ponds, which have a more favorable net energy ratio, are unstable ecosystems in which maintaining selected strains ...
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Chlorella for protein and biofuels: from strain selection to outdoor cultivation in a Green Wall Panel photobioreactor
Chlorellais one of the few microalgae employed for human consumption. It typically has a high protein content, but it can also accumulate high amounts of lipids or carbohydrates under stress conditions and, for this reason, it is of interest in the production of biofuels. High production costs and energy consumption are associated with its cultivation. This work describes a strategy to reduce ...
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Effect of O3 and O3/H2O2 on algae harvesting using chitosan
We examined the effects of pre-oxidation using ozone (O3) and a combination of O3 and hydrogen peroxide (O3/H2O2) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after pre-oxidation. Enhanced separation ...
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Toxicity of ZnO nanoparticles to the copepod, Acartia tonsa, exposed through a phytoplankton diet
Zinc oxide (ZnO) nanoparticles (NPs) are being increasingly utilized in a variety of products and applications and are therefore commonly discharged into aquatic environments, increasing exposure and potentially impacting aquatic organisms. ZnO NPs can depress growth of some marine phytoplankton, and several examples of NP trophic transfer have been documented, although not within planktonic ...
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Toxicity evaluation of two typical surfactants to Dunaliella bardawil, an environmentally tolerant alga
Sodium dodecyl benzene sulfonate (SDBS) and cetyl trimethyl ammonium chloride (CTAC) are two kinds of surfactants widely applied in various industries. The tremendous direct discharge of these surfactants into natural waters has posed a significant threat to ecosystems. Dunaliella bardawil was employed in the present research to test the toxic effects of SDBS, CTAC, and their mixture on cell ...
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The treatment of (fish) ponds on an environmentally friendly manner with the usage of the LG Sonic case study
Aquaculture, or aqua farming, is the cultivation of aquatic organisms, such as fish or shrimps, in a controlled environment. Where this happens in a closed water container, algae may occur that pollute the water and may damage the organisms grown. Many of the traditional methods to fight algae are either insufficient, cumbersome, environmentally unfriendly, or all of these. LG Sonic uses ...
By LG Sonic
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Lg Sonic Ultrasonic Algae and biofilm control for irrigation case study
Water used for irrigation can contain high levels of nutrients, some of these nutrients are beneficial for the plants watered, but can also lead to extensive algal growth. Algae in irrigation tanks can clog the irrigation system and can also be spread over the irrigated area. In addition, some types of fungus, also present in these waters, can be harmful for the plants grown. Therefore the ...
By LG Sonic
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