1. Power generation from garbage

The power generation capacity of garbage is to classify and correctly treat all kinds of garbage after collection. First, high temperature incineration is carried out for those with high combustion value, which completely kills pathogenic microorganisms and corrosive chemicals. The energy generated in the high-temperature incineration process is converted into high-temperature steam to promote the rotation of the turbine engine. Make the generator set generate electromagnetic energy. Second, the compounds that can not be ignited shall be properly treated by alcohol generation and anaerobic fermentation, and the dry flue gas desulfurization will result in biogas slurry. After ignition, the energy is converted into steam. Promote the turbine engine to rotate and drive the generator set to generate electromagnetic energy.

2. Change waste into fertilizer

In recent years, biotechnology has been widely used in the correct treatment of waste, and good results have been achieved in the correct treatment of chemical waste by using biotechnology. The microbial strain fixing starter is added to the chemical waste, and the bacteria will turn this waste into mechanical fertilizer of energy. It is very effective to use germs to properly dispose garbage.

3. Environmental sanitation waste landfill technology

At this stage, anaerobic fermentation landfill method is often used in the selection of environmental sanitation landfill treatment methods for garbage in large cities in China. In addition, the natural geological structure is used and waterproof layers are built.

4. Centralized incineration technology

Incineration refers to the whole process of ignition of combustibles in garbage with oxygen in garbage incinerator. After garbage incineration, energy will be released, which will cause smoke and solid sediment. Energy should be purchased, and smoke and dust should be clean. Sediment shall be digested and absorbed, which is an indispensable whole process of centralized incineration.

There are two better ways of garbage removal:

1. Landfill

Landfill can be divided into sanitary landfills and unhygienic landfills. In some villages and towns or small counties, there are also a large number of unhygienic landfills, that is, the ground is dug into pits without any treatment, filled with waste and buried, which has a great impact on the environment. The sanitary landfill has a complete set of technical requirements, including site selection, site treatment, garbage filling and covering by stages, and the leachate and flammable gas generated during the landfill should be treated properly. Sanitary waste landfill is a long-term process, which requires good planning, management, and decades or even longer to make the landfill site "stable", and then transform it for other purposes, such as building parks.

2. Incineration

Incineration is a treatment method that is likely to cause public disgust, but it is not the case. Incineration is a better way to realize the three transformations in garbage treatment: harmless, reduced and resourceful, especially the reduction, which can successfully reduce the volume by about 90%. The incineration process needs to be well controlled, and the major hazard is that dioxin is produced due to the poor control of combustion temperature. The heat generated from incineration can be used for power generation, which is a good resource recovery scheme. However, for domestic waste, due to the high composition, high moisture content and low calorific value of kitchen waste, it can not be directly used for combustion. The feasible way is to sort, crush, dry and make RDF (waste to fuel), and some of them can be compressed into rods. The general calorific value can be equivalent to lignite, which has a good application scenario. Ash generated from incineration generally has two channels: landfill and reuse. The incineration landfill has more advantages than the direct landfill because of the significant reduction of components and stable volume. Reuse is mainly based on the chemical composition contained in the ash and the physical characteristics of its particles. At present, it is better used as an additive for cement.