Group 1 - Chongqing is implementing resource recycling practices, transforming waste into valuable resources through various environmental initiatives [1] - The city processes 3,000 tons of household waste daily, focusing on efficient treatment of harmful gases produced during incineration [1][2] - The combination flue gas treatment technology adopted by Chongqing Sanfeng Yulin Environmental Power Co., Ltd. achieves a nitrogen oxide emission control of below 20 mg per standard cubic meter, with a particulate matter emission control of below 1 mg per standard cubic meter [2] Group 2 - China Petroleum & Chemical Corporation's Chongqing Chuanwei Chemical Co., Ltd. has invested 120 million yuan in a waste sulfuric acid regeneration facility, achieving a 98% recycling rate of waste sulfuric acid [4] - The facility allows the company to avoid purchasing raw sulfuric acid and saves 80 million yuan annually in waste disposal costs [4] Group 3 - In Fengjie County, a "digital cleaning" initiative has been launched, deploying AI cameras and drones for 24-hour monitoring of key river areas to manage floating waste [5] - The county collects over 20,000 tons of floating debris annually, primarily consisting of branches, straw, leaves, and some plastic waste [5][6] - The sorting process allows for the recovery of wood for fuel and the remaining waste is incinerated for power generation, improving the water cleanliness index by 27% [6][7]