According to the inventor of WST wet garbage sorting device, "garbage is also a kind of wealth, depending on how you use it".

Solve the problem of garbage classification

It is understood that WST system mainly uses the specific gravity method of water to control the depth and velocity of water flow, and automatically classifies domestic garbage in different proportions such as light, heavy, large, small, soft, hard, dry and wet. If we hand over 20 tons of municipal solid waste to a WST wet waste sorting device for treatment, after 1 hour, the device can completely subdivide these wastes. It can classify common garbage such as cans, plastic bottles, plastic bags and foamed lunch boxes. And classify shoes, old clothes, etc. Even waste batteries, bricks, wood blocks and other sundries can be clearly separated.

Garbage sorting is the first step of garbage recycling, and the trash can refuses to accept it all. Using the words "recyclable garbage" and "non-recyclable garbage" to remind people to put their garbage in different categories is the first step. After that, the sanitation station or recycling network has to be sorted more carefully, and the whole process is time-consuming and laborious.

It is understood that this manual method is mainly used for garbage classification at home and abroad.

An environmental expert said that due to the diversity and complexity of modern domestic waste components, the classification and treatment of municipal waste is a world problem.

At present, urban domestic garbage is all-encompassing, especially every household will produce garbage containing kitchen waste, which is a substance with high moisture and high oil pollution. After these wastes are collected and compressed by garbage compression stations or compression garbage truck, the water and oil pollution of kitchen waste will be largely dispersed, making many other dry wastes become substances containing water and other components, which are difficult to classify or reduce. The only way is landfill or incineration, which may cause secondary pollution.

Yang Zhiwei, chairman of Changjiang Electromechanical Co., Ltd., said in an interview with this reporter that the WST device can handle 500 tons of domestic garbage every day. After careful classification, more than 80% of materials can be classified separately or recycled as resources, which greatly improves the efficiency of direct recycling of waste.

Yang Zhiwei also stressed that WST garbage sorting device not only helps to turn waste into treasure, but also protects the environment. The separated water of the device can be recycled, without discharge, residue and secondary pollution during treatment.

In 2003, WST water waste sorting device passed the scientific appraisal of Jiangsu Science and Technology Department, obtained the appraisal certificate, and was rated as a new technology that "fills the market gap and leads the world level".

It is reported that this technology has been patented by the United States, the European Union, Australia and other countries, and won the world patent priority (PCT) in 2004.