Tuesday, October 30, 2012


Green Power

Competition Year: 2013


Summary
Our system provides an efficient system to treat black liquor waste from paper mills and generate back-up power

Categories
Energy and Environment
Quick Links

Our Pitch

In many developing countries, the emission of industrial waste is often regulated less rigorously. As a result, industrial effluent has negative environmental and health externalities that run in the millions of dollars.
For example, paper mills produce waste called black liquor. While some technologies are used to recover useful materials from black liquor but they are very inefficient and capital-intensive, and a large part of black liquor waste is spewed into the environment.
In addition, a paper mill loses $27,000/day due to inconsistent power supply. While many homes and industries are equipped with diesel back-up power generators, electricity generation from diesel is very expensive—sometimes almost 50 cents per kWh!
Our proposed solution addresses both the environmental pollution and power outage, by monetizing the environmental externality and using it as a back-up power source.
Our system would improve the efficiency of earlier technology (of converting organic residues to fuels) and will also recover inorganic pulping chemicals (unlike existing technologies). The remaining organic waste can then be processed (via biodigestion) into natural gas (e.g. methane), which serves as a back-up power system with a much lower operating cost compared to diesel generators. Enough gas will be stored/compressed to ensure that the mill can effectively tide over a typical power outage.

Impact

Reduce externalities associated with spewing black liquor into the environment and provide clean backup
nice one from mit global challenges http://globalchallenge.mit.edu/teams/view/361
power to paper mills using their own waste

Who We Are

Mohit Kansal
Mohit is an MBA Candidate 2014 at MIT Sloan School of Management. Prior to MIT Sloan, he spent the summer of 2012 working for a solar startup in New Delhi, India. Prior to that, he spent five years working in two investment banks in London and Hong Kong. Mohit is a Computer Science Engineer from Indian Institute of Technology Bombay (2007). Mohit is the business person on our team who is responsible for analyzing business opportunity in target country (India). He is a native Hindi speaker and has a strong network in India that our team can leverage to get information and reach out to industrial contacts.
Kevin Kung
Kevin is a graduate student at MIT Biological Engineering. He is passionate about innovations and entrepreneurship for the global poor. In addition to his research in biophysics, he has been involved, since 2005, with various engineering projects in the developing world, including a rural electrification and lighting system in Peru, water filtration in Uganda, interlocking stabilized soil blocks in Ghana, and a manually operated centrifuge design in Nigeria. Kevin has been focusing on social projects during his time at MIT and has significant expertise in waste to energy technologies. He is responsible for analyzing composition of waste (black liquor) and designing solutions to efficiently process it.
Vincent Liu
Vincent Liu is a doctoral student at MIT studying Electrical engineering and medical devices. He is experienced in both technology and business development for the developing world; he was previously involved with a medical device startup focusing on affordable skin grafting technology and team Salud del Sol, a team developing solar-powered autoclaves for use in the developing world. Vincent is responsible for the electricity generation aspects of the project. His electrical engineering expertise is most relevant in methods of converting waste to energy and storing energy efficiently.

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