曾经废弃矿山的臭水坑，如今蜕变为游人如织的美丽湿地；昔日令人掩鼻的房前屋后沟渠，现已清水潺潺，成为村民的休闲去处……在重 庆，一场针对农村黑臭水体的深度治理已显现成效。 除了生态修复方式，一些区县还探索从源头处切断黑臭水体的污染。比如，重庆市璧山区七塘镇推动生活污水循环资源化利用，实现了民生 改善和生态效益的双赢。 "附近村民的生活污水直排，是七塘镇黑臭水体的重要成因。"璧山区生态环境局副局长赵选亮说，过去一些地方污水收集和处理设施不完 善，居民常常将生活污水直接倾倒到房前屋后的沟渠和坑塘中，这些水体自净能力和流动性有限，最终引发水体黑臭现象。 而今，漫步七塘镇，不见昔日污水，取而代之的是生态沟渠和地下管网。分散居住的农户家中，厨房污水通向隔油沉砂井，卫生间污水汇入 三格式化粪池，经处理后，黑水成为菜地"液态肥"，灰水流进灌溉渠滋养菜园；在村民居住较为集中的院落，各家污水流入生态调控池，经微生 物"消化"后，作为农业水肥用于附近的柑橘基地。仅七塘镇喜观村幺滩院子一处，通过农村生活污水的资源化利用，每年可节约有机肥800公斤， 节约灌溉用水3650立方米。 近年来，重庆以农村区域200平方米以上河流、坑塘、沟渠 ...

Core Insights - The article highlights the successful transformation of rural black and odorous water bodies in Chongqing through comprehensive ecological restoration efforts [1][3][4] Group 1: Overview of the Initiative - Chongqing has conducted a thorough investigation of rural black and odorous water bodies, identifying 1,314 sites covering 3.05 million square meters, all of which have been treated by June 2023 [3] - The initiative aims to address the complex pollution causes in rural areas, which account for 95% of the city's land and house nearly 10 million residents [3][4] Group 2: Ecological Restoration Methods - The "small micro-wetland+" ecological restoration model has been implemented, utilizing over 10 species of aquatic plants to purify water, transforming former odorous water pits into ecological ponds [4] - In Liangping District's Lianshen Village, the tourism sector has benefited significantly, with over 300,000 visitors expected in 2024, generating more than 60 million yuan in revenue [4] Group 3: Pollution Source Management - Some districts, like Qitang Town in Banan District, have focused on cutting off pollution at the source, promoting the recycling of domestic wastewater to improve living conditions and ecological benefits [5] - The town has implemented a system where kitchen and bathroom wastewater is treated and repurposed for agricultural use, saving significant amounts of organic fertilizer and irrigation water annually [5] Group 4: Long-term Management and Technology Integration - Chongqing has established a long-term management mechanism for rural black and odorous water bodies, emphasizing rapid response and effective governance to prevent pollution recurrence [6] - Digital technology has been integrated into the management process, allowing for real-time monitoring of water body conditions through precise mapping [6]