This technology extracts lignin sulfonate from papermaking waste liquid to synthesize a multifunctional chemical sand fixation agent. The agent is water-soluble, adhesive, biodegradable, moisture-retentive, non-toxic, harmless, and durable. It enables rapid sand fixation through spraying, with precise control over the thickness of the fixation layer, making it suitable for desert roads, mining areas and other regions. It can not only inhibits desertification but also recycles papermaking waste liquid, achieving pollution control and desertification prevention simultaneously, with both environmental and economic benefits.

Technology provider:Lanzhou Institute of Chemical Physics