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November 23, 2020

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Student inventions to fire trash-sorting campaign

Seventy inventions and ideas from students to fuel Shanghai’s garbage-sorting campaign were released by greenery authorities yesterday.

The request for ideas began in July, and was met with a good response, the Shanghai Greenery and Public Sanitation Bureau said.

A total of 548 works were collected, and 70 received awards in Yangpu District.

“These works reflect students’ awareness of trash sorting and ecological protection, as well as their wisdom and innovation,” said Zhu Xinjun, bureau chief engineer.

A household smart sensor garbage-treatment system claimed the top award. It relies on picture recognition and control technologies, as well as equipment such as micro camera, and a locking motor to establish a complete image recognition algorithm based on neural network.

Any trash disposed into the system will fall into the right bins based on the mechanical movement principle.

“Garbage sorting is not only about environmental protection, but also reflects a city’s civilization level,” said Zhou Xiang of Shanghai Jincai Experimental Junior Middle School, the designer.

“As a resident, I want to make the city better with my invention,” she added.

An intelligent audio waste-sorting teaching aid, also an award-winning entry, enables interactive functions and helps children become familiar with different types of trash.

“The aim is to create a better and more convenient life,” said Cai Zhenghao, a designer from Shanghai Police College.

A wet trash treatment installation can remove sewage from wet trash based on the dehydration principle of washing machines. Wet garbage will be compressed  before it is transported. “I want to prevent pollution during the transportation of wet trash,” said Guo Yichen, a primary school student behind the design.

An assembly line intelligent sorting installation based on Arduino technology can quickly sort household waste by using robots. Proper handling of trash in daily life will save a lot of resources and protect the environment, said Cheng Yunqi, the designer.


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