China News Service, Xiangyang, October 21 (Hu Chuanlin, Liang Ting, Ma Furong) "The plant incinerates 1,200 tons of domestic waste per day, realizing the harmless, resource-recycling and reduction treatment of domestic waste in Xiangyang City." Reporter on the 20th In an interview with Hubei Xiangyang Enfei Environmental Energy Co., Ltd., the company's deputy general manager Jing Hongwei introduced.
Jing Hongwei said that the urban area of Xiangyang can produce 1,500 tons of domestic waste a day, which will be fermented and precipitated to produce 300 tons of leachate.
After circulating treatment, the effluent water quality can reach the industrial water standard for urban sewage recycling, and the total amount is recovered as circulating cooling water supplement.
Photograph by Yang Dong in the automated production workshop of Taishan Gypsum (Xiangyang) Co., Ltd.
The amount of deposited domestic waste will be reduced by 80% after incineration, and the heat generated by incineration will be used for power generation.
The plant can process an average of 438,000 tons of domestic waste per year and generate 150 million kilowatt-hours of electricity, which can meet the electricity demand of 50,000 households in one year.
The slag is made into municipal bricks, and the fly ash generated in the garbage treatment process is stably solidified to reach the national standard through a special process, and then sent to a regular domestic garbage landfill for harmless treatment.
Similarly, on Yuliangzhou, Xiangyang City, the comprehensive disposal demonstration project of sludge and kitchen waste in Xiangyang City has treated more than 800,000 tons of sludge and more than 150,000 tons of kitchen waste since it was put into operation in 2011. It can produce natural gas. It is used by more than 600 taxis in the city.
Hubei Huadian Xiangyang Power Generation Company uses biomass materials such as straw and rice husk to generate electricity. Photo by Hu Chuanlin
Shao Haoan, general manager of Hubei Guoxin Tianhui Company, which is in charge of operating the project, told reporters that the food waste collection and transportation vehicle collects food waste from the urban area and transports it to the factory for unloading. The food waste enters the "rebirth" process and becomes gas, Biochar soil, in addition to providing clean power for taxis, also produces biochar, which can be used for soil improvement, landfill ecological restoration, and river beach restoration.
Hubei Zhongyou Youyi Environmental Technology Co., Ltd., located in Yujiahu Industrial Zone, Xiangcheng District, Xiangyang City, is a high-tech enterprise specializing in the disposal of hazardous waste and medical waste.
"The company uses a rotary kiln incineration disposal technology for hazardous waste disposal companies, with a daily disposal capacity of 30 to 40 tons. Together with two other disposal companies in Xiangyang, it can fully meet the harmless waste generated by designated hospitals and centralized medical observation points in the city. According to the needs of chemical disposal, the city's medical waste can be collected, transported, and processed daily." Xu Yang, director of Xiangyang City Hazardous Solid Waste Management Center, introduced.
Xiangyang Enfei Environmental Energy Company Incineration of Domestic Waste Photographed by Hu Chuanlin
Taishan Gypsum (Xiangyang) Co., Ltd. is a newly introduced phosphogypsum comprehensive utilization enterprise in the city. The raw materials used in the product are 30% desulfurized gypsum and 70% phosphogypsum.
These two raw materials are first calcined at 400 degrees, harmlessly disposed, and then added with corn gum and other substances to increase viscosity and strength, and then become gypsum board for decoration. 300,000 tons of waste phosphogypsum can be consumed in Xiangyang every year.
According to the relevant person in charge of Xiangyang City's Ecological Environment Bureau, in recent years, the city has continuously introduced high-tech environmental protection enterprises, vigorously promoted the transformation of waste into treasure, and realized the recycling of resources.
At present, a domestic waste incineration power plant, a kitchen waste treatment plant, a construction waste recycling plant, and two bulky waste treatment stations have been built, allowing the harmless treatment rate of urban waste in Xiangyang to reach more than 99% .
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