Converting Waste to Energy
The continuous generation of large volumes of household waste is increasingly contributing to environmental pollution and has become a problem that affects society.
Waste incineration power generation makes use of sophisticated waste treatment technologies that evolved in the middle of the 19th century. After waste is sorted, waste with a high combustion value is incinerated, producing high-temperature steam to drive turbines and generate electricity.
Master is committed to the development and utilization of renewable energies. As such, we have joined forces with North China Power Engineering Company in China to undertake the master planning for and construction of waste incineration power plants in five cities in Ningxia from 2010-2030.
Since the 1970s, a number of waste incineration power plants have been built in Europe, the United States and other developed countries, to generate electricity through waste incineration.
A large waste incineration power plant in the United States has the capacity to generate 100 megawatts of electricity and treat 600,000 tons of waste every day.
Currently, there are over a thousand waste incineration power plants around the world. In general, more than 38% of the waste in Europe and the United States, and more than 70% of the waste in Denmark, Switzerland, Japan and Singapore is treated through waste incineration to generate power.
With the development of relevant treatment technologies, dioxins and other toxic substances produced in waste incineration can be controlled for safe emission.
Modern waste incineration power plants have adopted sophisticated "3T" (turbulence, temperature, time) technology for dioxin control.
Dioxin is produced at temperature between 360°-820°C. If the temperature inside the incineration furnace is maintained at more than 850°C and smoke is kept inside the furnace for more than 2 seconds, dioxins can be fully destroyed.
Smoke can also be treated in a most sophisticated way, where semi-dry reaction tower systems + active carbon injection + bag dust filters are used to absorb dioxins, with active carbon and dust is collected with cloth bags.
This reduces the volume of emissions carrying dioxin and helps control unit dioxin emission so that the emission level is kept under 0.1 nanograms, which has a negligible impact on human health.
Progression and Partnership
Based on our assessment of the current trends in waste production and growth in Yinchuan, we are planning to build a waste incineration power plant with 3x400 t/d waste incineration furnaces and 2x9MW generators, which have the capacity to treat 1,200 tons of waste per day and generate electricity with waste heat.
It will be equipped with auxiliary facilities for receiving waste, gas-smoke filtering, ash treatment, automated control and waste water treatment. Through on-site surveys, we have selected a riverside location in Area C of the Ningdong Development Zone to the east of Yinchuan Hedong Landfill as a potential site.
Master is committed to the development and utilization of renewable energies, and working with best-of-breed partners to achieve this.
North China Power Engineering Company has expertise in power plant design and construction projects around the world.
Master has partnered with North China Power Engineering Company in China to undertake master planning for, and construction of, waste incineration power plants in five cities in Ningxia from 2010 to 2030.
Policies Relating to the Waste Incineration Power Generation Industry
The Chinese government has been supportive of the development of the waste incineration industry and since 2000, has issued a range of policies to promote its development. Currently, there are great opportunities for the development of the waste incineration power generation industry and the equipment sector.
In February 2000, the State Economic and Trade Commission and the State Taxation Administration issued a Notice on the Schedule of Current Equipment (Products) of the Environment Protection Industry with Government Support (Batch 1), which includes complete sets of urban household waste incineration and treatment equipment.
In 2007, the National Development and Reform Commission issued China’s National Plan to Address Climate Change, which clearly encourages the construction of waste incineration power plants in areas with a developed economy and a shortage of land resources. It states that “great efforts need to be made to promote research in and the development and utilization of sophisticated waste incineration technologies so as to raise the domestic manufacturing level, bring down the costs in an efficient way, and improve the utilization of waste incineration technologies in the industry.”
Under the Plan for the Development of Hazard Minimization Facilities for Urban Household Waste in China as part of the Eleventh Five-Year Plan, China will build 82 household waste incineration plants during the period of the Eleventh Five-Year Plan, which will increase waste treatment capacity by around 67,000 tons. By 2007, the total number of waste incineration projects had reached 66. The percentage of waste for incineration in the total volume of waste undergoing hazard minimization has increased from 1% in 2001 to 12.9%.
China’s Eleventh Five-Year Plan for Urban and Township Environment and Health proposes, “by the end of the Eleventh Five-Year Plan, the hazard minimization rate for urban household waste in China shall be 60% or higher. The hazard minimization rates for household waste in cities and counties shall reach 70% and 30%, respectively. But we are far from reaching our targets. The annual volumes of urban waste in China will get to 179 million tons in 2015, and 210 million in 2020. The construction of waste incineration power plants will experience rapid growth, with a significantly increased demand for waste incineration power generation equipment in the market.”
At the annual plenary sessions of the National People’s Congress (NPC) and the Chinese People’s Political Consultative Conference (CPPCC) in 2011, Mr Qixing REN, member of the National Committee of CPPCC and vice director of the Population, Resources and Environment Commission of CPPCC said, “waste is a misplaced resource." He suggests, “the government should mobilize its scientists and researchers to conduct studies on waste treatment, especially on the recycling of waste. It should establish uniform operational and technical standards in China to promote the utilization of waste as a resource and the development of a waste recycling sector as a new sunrise industry by offering strong support to waste recycling businesses. Political and financial support should be given to businesses that invest in waste recycling through preferential policies on funding, taxation, marketing and technical services, so as to encourage and guide more businesses to invest in waste recycling and promote the rapid development of the waste recycling industry.”