With the development of the city, in order to create a warm and beautiful environment, more and more artificial lakes and landscape water have appeared. As an important part of the urban water environment, artificial lakes have ecological functions such as regulating climate, purifying water quality, and maintaining biodiversity. In addition, the existence of these water landscapes embellish the appearance of the city, provide people with a place for entertainment and leisure, and some have played a role in isolating the city's traffic roads.

However, the area of ​​artificial lakes in general cities is small, the ecosystem is extremely fragile, and minerals and nutrients accumulate, which makes the lake area prone to algal blooms, which pollute the water body and affect the beauty of the lake. Therefore, it is urgent to repair and purify the water quality. However, the domestic research on the restoration technology of urban artificial lakes is still in its infancy. Most environmental protection companies stay in the industrial wastewater treatment stage, and have relatively shallow involvement in emerging fields such as artificial lakes, whether in the market or engineering experience. Lacking.

First, adhere to the principle of "ecological governance", through scientific and strict allocation of the types and quantities of animals and plants in the lake, so that the animals and plants in the lake will form a good biosphere; then special microbial carriers are placed in the water body to make the water original Native microbes naturally attach to it, grow and reproduce in large numbers, efficiently decompose pollutants in the water, and can prey on and decompose algae to give full play to the self-purification ability of the water body; in addition, for some closed small and medium-sized artificial lakes, a return will be set up at the bottom or wall of the pool. The nozzle introduces water into the machine room, and removes suspended solids and organic pollutants in the water body through mechanical filtration and other methods.

Wanda Xishuangbanna International Resort, the front court of the main building of the hotel group, and two artificial landscape lake water treatment transformation projects in the SPA area. The water area is about 8000m and the water volume is 30000m. The treated water quality reaches the surface water level III standard. "Ecological treatment method + mechanical aeration" water treatment process.

On the one hand, microorganisms can eat organic matter in the water, so that the content of organic matter in the water is rapidly reduced, making the algae and plankton in the water unable to get sufficient nutrition and apoptosis, thereby restoring the cleanliness of the water body; on the other hand, aeration is carried out through a diving aerator to restore the water. The dissolved oxygen content can maintain the ecological balance of the water body. Before the transformation, the lake surface was pale green, mainly due to excessive organic matter, nitrogen, and phosphorus, which caused rapid growth of algae and plankton in the water; after the transformation, the artificial lake was transformed again to be clear again, and the water quality was crystal clear. Going down, you can clearly see the pebbles of different shapes at the bottom of the lake.