Our patents
Zhengze has a number of advanced environmental protection patents, including:

• A high concentration organic wastewater treatment process in tobacco wastewater
• A gas sweeping device for inclined plate settler
• A cleaning device with energy dissipation for air flotation machine
• A continuous-flow gas sweeping device for sand filter
• A light-assisted strong oxidation reactor
• A gas sweeping device for anaerobic reactor
• A sludge dewatering cloth filter for tobacco wastewater

Our awards
In 2014, second prize of the Third Shanghai Invention Competition
In 2014, prize for excellence in the Third Shanghai Innovation and Entrepreneurship Competition
In 2015, obtained the official certificate of High-tech Enterprise
In 2017, joined Shanghai Environmental Protection Industry Association


High-tech Enterprise Certificate issued by Shanghai Science and Technology Committee


Second prize of the Third Shanghai Invention Competition

Prize for excellence in the Third Shanghai Innovation and Entrepreneurship Competition