As China’s urbanization accelerates and environmental protection policies intensify, water environment remediation has emerged as a central pillar of ecological civilization development. To address industry pain points such as low treatment precision and secondary pollution inherent in traditional dredging processes, KOSUN has independently developed an integrated eco-friendly silt treatment system. This system provides a full-process, modular, and integrated solution for dredging projects in rivers, lakes, and reservoirs.
System Architecture and Process Flow
The KOSUN Environmental river sludge treatment process is a system integration technology covering physical separation, dehydration, drying, and stabilization treatment. The technical system consists of eight core modules: Pre-treatment, De-sanding, De-silting, Dewatering, Sewage Treatment, Clean Water Storage, Solidification, and Chemical Dosing. This highly modular design allows for flexible configuration and customized development based on the specific hydrological and geological conditions of different regions.
Once the material enters the system, it first undergoes pre-treatment and washing/screening to separate large debris and gravel. The solid-liquid phase then enters the de-silting and de-sanding process; separated sand and gravel that meet standards can be backfilled directly into the river. The remaining liquid phase enters a rapid sedimentation process and is diverted based on physical and chemical properties: the liquid phase enters the sewage treatment unit for purification before moving to the clean water storage unit, while the bottom sludge enters the dewatering unit for volume reduction and harmless disposal.
Application Results and Ecological Benefits
KOSUN Environmental has established classified disposal standards for different types of sludge. For non-contaminated dredged sludge, the residual water produced during treatment is discharged after meeting standards, and the sludge is solidified via physical methods for resource utilization based on its characteristics. For contaminated dredged sludge, the tailwater is transported to sewage treatment plants after meeting standards, clean sand is backfilled into the river, and the dehydrated sludge undergoes harmless treatment before being transported to designated sites for landfilling or resource utilization. This technology has been widely applied in urban river channels, scenic city lakes, and drinking water sources, providing reliable technical support for restoring water self-purification capacity and improving environmental quality.