The renovation project of the camp's domestic sewage system is a crucial infrastructure upgrade project aimed at comprehensively improving the water quality and environmental management level of the camp, ensuring that camp employees have access to healthy and high-quality water, and effectively protecting the surrounding natural environment. The project is carefully planned into two core parts: the optimization and upgrading of the water purification system and the renovation of the sewage treatment system.

For the water purification system, we have adopted an advanced combination process of "activated carbon filtration+water softener treatment+reverse osmosis technology", which is like building a solid defense line for water quality safety. Firstly, activated carbon filters utilize their strong adsorption capacity to effectively remove impurities, odors, and some harmful substances from water; Next, the water softener uses ion exchange technology to remove calcium and magnesium ions from the water, preventing the formation of scale and making the water quality softer; Finally, the reverse osmosis membrane, with its fine filtration ability, further purifies the water to ensure that it meets the national drinking water standards, is clear and sweet, fully meeting the daily drinking and cooking needs of camp employees, and making every drop of water a source of healthy living.

In terms of sewage treatment system, we have introduced the efficient A ²/O (anaerobic aerobic anoxic) sewage treatment process, which is an innovative technology designed specifically for treating daily domestic sewage in campsites. Through scientific biological reaction processes, sewage first enters the anaerobic zone and decomposes organic matter under anaerobic conditions; Subsequently, it enters the aerobic zone where aerobic microorganisms multiply in large numbers, further degrading organic matter and removing pollutants such as nitrogen and phosphorus; Finally, denitrification is carried out in the anoxic zone to remove residual nitrogen and achieve comprehensive purification of sewage. After this series of precision treatments, the effluent quality has significantly improved and stabilized to meet the national first-class emission standards, which not only reduces the environmental burden but also demonstrates our firm commitment to green ecology.