The protection of water quality in lakes has always been a focal point within the realms of environmental protection and water resource management. As an imperative carrier of water bodies, the maintenance of lake water quality directly impacts the quality of life and the overall health of aquatic ecosystems. The continuous expansion of human activities has exacerbated the water quality status of lakes, making it crucial to find efficient, ecological, and sustainable water purification technologies. In response to this imperative, the MABR (Membrane Aerated Biofilm Reactor) lake water ecological restoration system has emerged, offering a unique purification mechanism and technological advantages to enhance lake water quality.

Main Causes of Lake Pollution

The primary factor contributing to lake pollution is surface source pollution, stemming from untreated or substandard water inflow from upstream locations, rain and floodwater, and eutrophication or algal outbreaks induced by extreme temperatures. Upstream and nearby villages and towns often discharge domestic and agriculture sewage directly into the lakes without proper treatment, leading to high influx of organic matter, nutrients (nitrogen, phosphorus), and other pollutants during extreme weather conditions. These excessive pollutants surpass the self-purification capacity of the water body, leading to deteriorating water quality conditions and the pollution of the lake water body.

How the MABR System Purifies Water

The MABR lake water ecological restoration system centers around MABR technology, which integrates oxygen-permeable membrane technology and biological membrane water treatment technology. This advanced process utilizes oxygen-permeable hollow fibred membranes to create an environment for microorganisms to grow on and thrive while providing a continuous oxygen supply to the biofilm via direct oxygen transfer.

As water flows through these membranes with biofilms, a variety of mechanisms such as concentration-driven and microbial adsorption work to remove organic matters, nitrogen, phosphorus, and other pollutants from the water. The organic matter is decomposed into inorganic metabolites, while nutrients such as nitrogen and phosphorus support microbial growth and metabolism, resulting in the effective removal of pollutants and significant improvement in water quality.

Advantages of MABR Lake Water Ecological Restoration System

Highly Efficient Purification Capacity: The MABR dual film combination forms a stable biofilm, allowing for efficient and effective pollutant removal while enhancing dissolved oxygen levels, providing strong support for lake water purification.

Ecological and Energy-Saving Features: The system simulates the operation of natural ecosystems, restoring the ecological balance of lakes, and maintaining biodiversity and stability. This ecological treatment promotes natural and long-term sustainable purification processes.

Energy Saving and Low Carbon: MABR technology boasts low energy consumption and carbon emissions. The direct oxygen transfer conserves energy and enhances overall process efficiency and sustainability.

Customized Optimization and Integrated Solutions for Practical Applications: The system can be customized and optimized to meet the unique water quality characteristics and treatment needs of different lakes, achieving targeted pollutant treatment. It can also be integrated with other water treatment technologies to enhance the purification effect and treatment efficiency.

Conclusion

The MABR lake water ecological restoration system presents an effective solution for improving lake water quality through its unique purification mechanism and technical advantages. By simulating natural ecosystems, it achieves efficient, ecological, and sustainable water purification. With wider application, this technology is poised to restore water ecology and elevate water quality in numerous lakes, facilitating the sustainable use of water resources and the benign development of ecological environments.