ALGAE POWER

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Phycoremediation potentials of micro algae:

The mechanisms involved in micro algal nutrient removal from industrial wastewater are similar than that from domestic wastewater treatment. Algae-based treatment is especially interesting in the case of N-containing contaminants whose biodegradation normally leads to NH4+ or NO3 _ release. (Mun˜ oz et al., 2005a, b). Heavy metals represent an important group of hazardous contaminants often found in industrial wastewater (Kratochvil and Volesky, 1998). Microalgae can be efficiently used to remove these (Can˜ izares- Villanueva, 2000). Microalgae can biodegrade hazardous organic pollutants. Micro algal species have been successfully used for the treatment of olive oil mill wastewater and paper industry wastewater (Abeliovich and Weisman, 1978; Narro, 1987). Lima et al. (2003) reported -nitrophenol removal by a consortium of micro algae.


Phycoremediation of industrial effluents:

Proper management is industrial effluent is very essential for saving the environment. Careless and indiscriminate disposal of effluents have already caused major environmental and health problems. Technology should be developed not only to prevent further pollution but also remediate already polluted areas and make them habitable. Bioremediation can help manage effluents very effectively than the conventional methods.


Conventional methods vs Algal technology:

Industrial effluents are conventionally treated using a variety of hazardous chemicals for pH correction, sludge removal, colour removal and odour removal. Extensive use of chemicals for effluent treatment results in huge amount of sludge which forms the so called hazardous solid waste generated by the industry and finally disposed by depositing them in landfills. Algal technology avoids use of chemicals and the whole process of effluent treatment is simplified. There is considerable reduction in sludge formation. Algal technology is highly economical and eco-friendly.


Photobioreactor LED, for CO2 consumption measurement.

Design and manufacture and testing of Photobioreactor LED, for Parameterization of Gas capture, for Microalgae strains. Effluent recirculation systems based on impulse by injection of gas (CO2), with microcontrolled LED lighting system, for regulation of intentions (Lumex) and time or day / night cycles. Design with gas flow on the face of the cylinder with microbubble, capacity of 32L bioreactor, special for measuring CO2 consumption and for accelerated growth of strains for inoculates of industrial bioreactors.

Pilot plant, phycoremediation of oil effluents.

Pilot plant for remediation of contaminated effluents in the oil extraction process, process water tests and reverse osmosis water. Capacity of the plant of 30 thousand liters per day. Cascade configuration, with flow control system. natural lighting. Co-participation of Dr Sivasubramanian (Phycospectrum, India).

Plant for remediation of contaminated effluents in meat industries.

Used in the process of stratification of meat products, cleaning of corrals and menejo of tannery. System designed with an input for elimination of solid waste through the digester, for the generation of methane (suitable to generate electricity), a stage of cascade bioreactors for effluent remediation and a spinning system at the exit for separation of biomass.

 

 

CO2 sequestration and flue gas mitigation

Microalgae, a diverse group of fast growing prokaryotic and eukaryotic photosynthetic microorganisms, have the capacity to fix CO2 from atmosphere and industrial flue gas streams or utilizing inorganic carbonate salts (e.g., Na2CO4 and NaHCO4) to produce high quality biofuels via biophotosynthesis. They are the most promising bio-species for combined CO2 mitigation and renewable biofuel production due to their high photosynthetic efficiency. It was also suggested that microalgal CO2 mitigation and biofuel production could be combined with waste heat utilization, wastewater treatment and/or production of novel bioproducts to further enhance the economical feasibility and environmental sustainability of micro algal CO2 mitigation and biofuel production using microalgae.

 

Bio Fuels from Algae

One of the most serious environmental problems today is that of global warming, caused primarily by the heavy use of fossil fuels. In Japan, large amounts of CO2 are released into the atmosphere from electric power plants and industry. The CO2 generated by these large point sources could potentially be recovered with relative ease through the use of an established technology such as chemical absorption. The enormity of the amounts of potentially recoverable CO2 would however necessitate the development of technologies for sequestering or, more favorably, utilizing this CO2. Photosynthetic micro algae are potential candidates for utilizing excessive amounts of CO2, since when cultivated these organisms are capable of fixing CO2 to produce energy and chemical compounds upon exposure to sunlight. The derivation of energy from algal biomass is an attractive concept in that unlike fossil fuels, algal biomass is rather uniformly distributed over much of the earth's surface, and its utilization would make no net contribution to increasing atmospheric CO2 levels.

 

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Withoutsludge

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  • Phycoremediation reduces sludge formation to a very large extent.
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TotallyNatural

  • The micro algae are photosynthetic organisms and they do not produce any toxic substances.
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MoreEfficient

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  • Construction & Operation Costs are less than half those of mechanical treatment plants