State-of-the-Art Technology Waste-to-Energy ~ The New Frontier
BY THE NEW MILLENNIUM , global waste-to-energy market is projected to be worth US 37.64 billion. It amounted to a mas- sive of 2.12 billion tons of waste each year we produced. A truck with waste can circle the Earth 24 times. We need 1.6 planets to absorb our waste as well as providing us with the resources and by 2030s, two. Without we realizing it, there is gold trashed in the waste we produce every day. With rapid urbanization in India, the country is facing massive waste management challenge. Over 377 million urban people live in 7,935 towns and cities and generate 62 million tonnes of municipal solid waste per annum. Nearly 72 per cent of India’s garbage remaining untreated. Landfills are unsightly and odorous. Only 43 million tonnes (MT) of the waste is collected, 11.9 MT is treated and 31 MT is dumped in landfill sites. Solid waste management is one among the basic essential services provided by municipal authorities in the country to keep urban centres clean. However, almost all municipal authorities deposit solid waste at a dump yard within or outside the city haphazardly. Experts believe that India is following a flawed system of waste disposal and management.
Approximately 99% from the waste can be recycled into sustainable electricity, heat, cooling and useful building materials. A waste management facility that combusts wastes to produce electricity can be implemented in every municipal to overcome the high rising municipal solid waste that has become a problem everywhere around the country. Previously in the last few decades, trash was burned using trash incinerators but at the same time endangering the health in the surrounding areas because it does not remove hazardous or recyclable materials before burning. Most of the old incinerators did not supply the electricity as the system is not build for that.
Landfill sites in Delhi had exceeded their capacity way back in 2008 and most of these sites have contaminated groundwater in and around their neighborhood. Delhi’s garbage conundrum is not new. Delhi needs 800 ha of land to accommodate to the needs of land for the municipal solid waste. But the city simply does not have the land.
By re-designing the plant, the steam produced from burning the trash is channeled into the large turbine section to generates electricity. Estimated about 500 to 600 kWh of electricity can be generated for every ton of waste incinerated. Thus, through the incineration of about 2,200 tons per day of waste able produce around 1200 MWh of electrical energy. Approximately 1MW electricity can power up 1,000 homes in India. It’s a way of providing electricity to everyone as well as keeping the municipal solid waste. The most modern plants these days have a better procedure whereby all the trash sent will be sorted out before burning. All the materials properly sorted before burning it and can be co-existed together with the recycling where all recyclable items removed before the trash sent to the incinerator section. This way, the hazardous part is avoided as it only burns the not recyclable materials for power. Evolution of the technologies can be used to turn all the municipal solid waste into electricity which will contributes in two ways – sustainable waste management, clean environment and free electricity. The practice of burning waste-to-energy cause lesser air pollution than coal plants, but relatively more than natural gas plants. The processing release less carbon and methane into the thin air. It is a better way compared to having a mountains of waste trash to the landfills or even worse, throw it into the lake or ocean.
HOW OUR WASTE-TO-EN W OUR WASTE-TO-EN TO OVERCOME WASTE ISSUES IN INDIA, ElQuator has the solutions that will give double energy production just by burning it. Every waste-to-energy plants have a similar set-up in their design and equipment. It is a mass-burn facility. It starts with the waste brought in trucks and dump into the storage bunker. The trash scooped and transferred into the combustion area where it burned. During the incineration, the temperatures reach around 1000°C. With our efficient technology, the waste is combust directly in two chambers. Waste is added to the boiler in batches. The burning produced high temperatures in the furnace and steam. The heat from the furnace heats water in a boiler, creating steam that turns a turbine to drive a generator that makes electricity. The steam pressure then channeled to a turbine and generator to create electricity. Excess energy creates from incineration used as district heating and residences in the surrounding areas. With our technology that we invented to helps the developing countries managing their mountainous of solid waste that unattended for a long time, the power generates from the incinerator can be harvested twice. How do we do it? When the gases released to the environment at the end of the whole process, our technology will trap the gas and divert it to the reservoir tanks. With this method, we can harvest energy twice. It is CO2 free once energy it'd released to the consumers. The Compressed Air System will absorb all the gases released and store them in the tanks. Releasing it as in the form of electricity only takes a few seconds after the system received the signal. All are controlled by a computer system that manages the valves for the intake and sent out the energy. The waste-to-energy plants produce fly ash and bottom ash. The total amount of ash produced are from 15% to 25% by weight of the original quantity of waste.
SECOND LAYER ENERGY CAPTURE USING ELQUATOR'S TECHNOLOGY
BOTTOM ASH SENT TO FACTORY FOR MAKING
BRICKS AND PAVEMENT RGY PLANT WORKS T WORKS The residue ash left is used for raw materials in manufacturing cinderblocks, for road construction or walkway pavers that can be used by municipal in beautifying the gardens and cities. A waste-to-energy plant can incinerate 80 to 90 percent of waste. Some waste-to-energy plants can be designed to convert salt water to potable freshwater as a by-product of cooling processes. Waste-to-energy plants cause lesser air pollution than a coal plant. It will become zero carbon from the combustion as the Compressed Air System will take up all the gases that use to release to the air at the end of the process. Waste management can be a better solution for the country that combats with waste issues.Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8
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