In the process of river and lake pollution control, sediment pollution treatment is one of the main challenges. Sediment is the deposited material in rivers and lakes, an essential component of natural water bodies. When water bodies are polluted, some pollutants can be stored in the sediment through precipitation or particle adsorption, and be released again under appropriate conditions, becoming a secondary pollution source, known as sediment pollution. The mechanism of the sediment improvement agent developed by Water Defense Environmental Protection is to oxidize the reductive products produced by the decomposition of organic matter in the sediment, and add various effective components that can degrade organic matter. It can completely decompose and convert harmful substances in the water body and sediment, such as leftover food and feces, rapidly improving the substrate and purifying the bottom water environment. Regular use can prevent the occurrence of turbid water, yellow mud water, and soy sauce water, significantly inhibit the growth of large submersed algae like moss, and effectively repair the damage to the bottom environment caused by severely polluted water bodies.