Control waste incineration pollution

For a long time, many places in China dispose of garbage by landfilling, but there are more and more garbage. A landfill is full load within a few years, and some of them also bring potential hazards such as leachate pollution of soil and groundwater. In recent years, some cities began to build waste incineration plants, but due to the lack of information communication and poor management, the public questioned.

For waste incineration, the public is worried about whether the emission of sulfur dioxide, dioxin and other toxic pollutants can reach the standard stably, and whether there will be odor around the plant due to waste stacking and fermentation.

The leachate produced in the treatment of garbage is the dirtiest water in the world. The waste gas incinerator has a huge closed garbage bin, which is used to make the garbage fully ferment, improve the calorific value, and use the generated biogas to pressurize. The odor does not leak out, and also reduces the water content. The leachate is effectively disposed, and there is no peculiar smell outside the garbage bin.

Kitchen waste accounts for 40% ~ 70% of China's urban domestic waste, recyclable paper, plastic, glass and metal account for about 35%, inorganic substances such as slag, stone and soil account for 10% ~ 30%, and combustible substances such as bamboo, wood and cloth account for less than 10% Cheng Hefa, a researcher of Guangzhou Institute of geochemistry, and Dr. Hu Yuanan, a gifted youth education program of Stanford University in the United States, have made initial achievements in the cooperative research on the comprehensive treatment of domestic waste in China. Relevant papers have been successively published in chemistry today, international energy academic journal Biological Resource Technology and international environment academic journal issued by teknoscienze, Italy They are published in environmental pollution and environmental science and technology.

According to the results of the cooperative research, they put forward the control scheme of waste incineration pollutants: paper, plastic, glass, metal and other materials should be recycled as secondary raw materials, kitchen waste, bamboo and wood, cloth and other combustible materials should be incinerated for power generation, and at the same time, the generated objects of secondary pollution such as plastic products and electronic products waste should be reduced or prevented from entering the waste incinerator.