Nualgi - schematic explaining the process

Nualgi closes both the Food - Sewage - Food cycle and O2 - CO2 - O2 cycle.
Thus its the most sustainable solution to both air pollution and water pollution.

Nualgi - Schematic diagram

Nualgi is a sustainable solution because it sets off a series of sustainable cycles.
CO2 - O2 cycle in water - Anthropogenic CO2, Aquatic Animal CO2 to O2 from Diatoms.
Food - Sewage - Nutrients in water - Fish - Food Cycle.
Biodiesel - CO2 - Diatoms - Biodiesel cycle.
Diatoms to Aerobic Bacteria - CO2 and Nutrients to O2 Cycle

Biotech Century

Biotech Initiatives in US Colleges

http://sustainablebiotech.wordpress.com/about/

Motivation
The 21st century is being called the Biotechnology Century. Where the 20th century was dominated by the development of technologies based on hard physics and chemistry that brought on the full promise and problems of the industrial revolution, the 21st century promises to be dominated by technological developments based on biology and the molecular operation of living entities. This will allow us to move beyond the crude and wasteful technology of the industrial revolution and replace much of it with elegant and efficient engineered biological technologies. To be sure, high value pharmaceutical and therapeutic applications of biotechnology were important in its early development and continue to be dominant but in the long run they only represent a fraction of the potential of biotechnology. Much recent academic and commercial activity has been applied toward the development of sustainable industrial biotechnology, particularly biofuels to supplement and eventually replace petro-chemical feedstock. Academic and commercial activity in this area will only grow over time and KGI should position itself to play a prominent role in its commercialization. The Sustainable Biotechnology Initiative will be an important first step in obtaining this position.

http://berc.berkeley.edu/

http://www.hmc.edu/academicsclinicresearch/interdisciplinarycenters/ces.html

http://www.pomonaea.org/

http://www.pitzer.edu/academics/field_groups/environmental_studies/program.htm

Biological Aeration

Nualgi - Biological Aeration

Aeration is one of the most critical and expensive processes in Wastewater Treatment. Sewage Treatment Plants and Effluent Treatment Plants that use aerobic process have to provide the oxygen required by the aerobic bacteria to enable them to breakdown the organic matter in sewage.

Aeration is conventionally done using mechanical electric powered aerators. The power consumption by the aerators is very high and accounts for upto 50% of the operating cost of the STP / ETP. In addition it leads to emission of CO2 at the power generation plants.

Diatom Algae are a specie of beneficial algae (unlike Green Algae and Blue Green Algae) that can grow rapidly and these are microscopic aquatic plants that release oxygen during photosynthesis.

These however require iron, silica and other minerals to grow rapidly. Nualgi is a plant nutrient that provides all the nutrients required by diatoms and this results in a rapid bloom of diatoms within minutes of dissolving Nualgi in the water body.

1 kg of Nualgi results in release of about 100 kgs of oxygen over 5 days, this increases the DO level of the water to about 6 mg / litre. Regular use of Nualgi will maintain the DO level.

The aerobic bacteria breakdown the organic matter into base constituents and this becomes food for the diatoms. Thus diatoms and aerobic bacteria have a symbiotic relationship – Diatoms provide the oxygen required by bacteria and the bacteria provide the food required by the diatoms.

The cost of 1 kg of Nualgi is just Rs. 275/- and this treats about 4 million litres of water, thus cost of aeration is just Rs. 0.07 per kilo litre.

Use of electric powered aerators also results in emission of Carbon dioxide by the power plants. Whereas use of biological aeration results in absorption of Carbon dioxide by the diatoms.