About 70% of Shanghai’s garbage disposal is at the Shanghai Laogang Solid Waste Base. However, the speed at which the waste is processed at the base cannot keep up with the speed at which waste is generated. Therefore, regarding the disposal of waste at the end of the year, it is reported that the Laogang Wet Waste Phase I Project, a major project in Shanghai and the largest wet waste resource treatment project in Shanghai, will be put into operation at the end of next year.
Composting treatment
Pile domestic waste into piles, keep it at 55~70°C for storage and fermentation, and use the decomposition ability of microorganisms in the waste to decompose organic matter into inorganic nutrients. After composting, domestic waste becomes hygienic and odorless humus. It not only solves the problem of garbage outlet, but also achieves the purpose of recycling. However, domestic waste compost has low nutrient content and high impurity content. Long-term use can easily cause soil hardening and groundwater quality deterioration. It needs to be strictly carried out in the compost pre-treatment or post-processing unit. Sorting.
Research on comprehensive processing technology is imperative. The main obstacle to the resource utilization of garbage is that the composition of the garbage itself is complex and difficult to utilize.
On the other hand, the research and development of related technologies has not kept up. Existing utilization technologies often adopt a single mode (such as incineration to generate electricity), and use the same method to treat different waste components, resulting in a complicated treatment process. It consumes a lot of itself and has poor economic efficiency. Therefore, research on key technologies for comprehensive treatment based on local conditions and different waste compositions is of great significance to fundamentally solving the waste problem and is a major event related to the national economy and people's livelihood.
Reference for the above content: Baidu Encyclopedia-Domestic Waste