Waste to Energy: Miniature, Synergistic or Cross-industry?
According to the latest Statistical Yearbook of Urban and Rural Construction in 2021 and Statistical Yearbook of Urban Construction in 2021 issued by the Ministry of Housing and Urban-Rural Development of the People’s Republic of China, by the end of 2021, the national amount of domestic garbage removed was approximately 250 million tons, up 5.9% year over year. There were also 583 domestic garbage incineration plants, with a domestic garbage incineration capacity of 720,000 tons/day, accounting for 68.1% of the total.
According to the incomplete statistics of China solid waste network, in the first 10 months of this year, 54 new waste incineration plants were put into operation in China, with an additional waste incineration capacity of 59,300 tons/day. Combined with the latest data from the National Bureau of Statistics, the number of urban domestic waste incineration plants in China has increased to 637, and the incineration capacity has increased to 790,000 tons/day.
01 The incineration market will sink to smaller and more dispersed areas.
If the incineration plant runs at full capacity for 8,000 hours a year, that is, 333.33 days, the annual waste incineration capacity in China can reach 260 million tons, which can already meet the domestic waste removal capacity of 250 million tons on the whole. With the continuous advancement of waste classification, the separation rate of kitchen waste in some areas has stabilized at 20%, so the waste incineration capacity in China has been ahead in general.
With the provinces (municipalities directly under the Central Government) successively issuing medium-and long-term special plans for domestic waste incineration power generation, the layout of national waste incineration projects has become clearer, and new incineration capacity in each province will be occupied by new projects in small and medium-sized cities. At the same time, the scale of individual projects has dropped below 1,000 tons, and there is still room for decline.
02 Small incineration market in county is about to rise.
In the implementation plan of short-board supplement, it is clearly stated that it is necessary to explore the pilot project of small-scale domestic waste incineration facilities in areas where the daily clearing volume of domestic waste is less than 300 tons. According to the data, in 2021, among the 685 cities in China, there are still 321 cities with zero waste incineration capacity, while the total amount of garbage removal in these areas has reached 40 million tons, but the daily amount of garbage removal in most cities does not exceed 300 tons. Besides, there are still many county towns and villages that can't and can't completely collect and transport all the garbage together for incineration due to traffic, economy and other reasons. Some even two or three counties can't collect 500 tons or 600 tons, and most incineration plants have economic benefits only when the scale is 300 tons or more. The demand for small-scale domestic waste incineration facilities in the industry is very obvious.
03 How to realize synergistic incineration is one of the key cores of high-quality operation
From the comparison of incineration capacity and incineration capacity of waste incineration plants in various provinces in 2021, almost all provinces have surplus incineration capacity, with the total surplus (incineration capacity-incineration capacity) reaching 60 million tons. This means that incineration plants in most provinces and cities may be faced with "insufficient food". Among them, Guangdong and Zhejiang are particularly prominent, and the incineration capacity exceeds the incineration capacity by more than 10 million tons.
Co-incineration has become the key to the high-quality operation of enterprises in the industry. The leading solid waste enterprises are further extending their business to environmental protection sub-sectors such as kitchen waste, hazardous waste, sludge, industrial solid waste, etc., and taking the lead in forming a number of model projects of "total solid waste" co-disposal.
04 Collaborative disposal of sludge welcome benefits
In September, 2022, the National Development and Reform Commission, the Ministry of Housing and Urban-Rural Development and the Ministry of Ecology and Environment jointly issued the Implementation Plan for Harmless Treatment and Resource Utilization of Sludge, proposing that the treatment capacity of local waste incineration plants, thermal power plants, cement kilns and other kilns should be effectively utilized to jointly incinerate and dispose of sludge. When the incineration industry bid farewell to the high-speed growth and the domestic waste incineration capacity of each province is surplus, establishing the status of waste incineration mixed with sludge is expected to bring great benefits to the waste incineration sector, and industrial enterprises will be more motivated to extend the business industry chain. At present, sludge incineration has been widely used in engineering and accumulated rich incineration experience. According to rough statistics, the surplus capacity of waste incineration can theoretically cover the sludge output, and the development space is huge.
https://www.solidwaste.com.cn/news/339546.html