At the sludge dewatering site, the "soft core" phenomenon is a major concern for many enterprises: the surface of the filter cake after pressing appears dry, but its interior is in a plastic-like state and even shows water seepage. This not only fails to achieve the goal of reducing sludge volume but also increases the environmental protection risks during the sludge transportation process. In severe cases, it may even lead to environmental violations. To address this industry's persistent problem, Works Chemical Co., Ltd. conducted long-term and in-depth technical research, precisely analyzed the essence of the issue, and developed a targeted solution to successfully solve this problem for the industry.

The Works Chemical technical team conducted extensive on-site investigations and experimental analyses, and identified the core cause of the "sludge core" phenomenon: the bound water in the sludge was not completely released. Traditional conditioning processes were unable to effectively break the bound water structure of the sludge particles, resulting in moisture remaining inside the sludge cake, creating a state of "dry on the outside and wet on the inside". To address this core issue, the research team started from optimizing the chemical formula and through upgrading the modification technology, developed a special conditioning agent that could precisely break the sludge colloid structure and fully release the bound water, thereby fundamentally solving the "sludge core" problem.

Meanwhile, Works Chemical New Materials adheres to the concept of "synergistic optimization of reagents and processes", adjusting the operation process of the belt press filter based on the nature of the sludge and the equipment parameters of different enterprises. This ensures the optimal matching of reagents and equipment, and enables more thorough and uniform moisture removal of the sludge during the filtration process. Currently, this solution has been successfully implemented in multiple sewage treatment plants and paper mills. After application, the phenomenon of sludge water return has been completely eliminated, and the moisture content of the sludge is stably controlled below 60%, fully meeting the requirements of environmental protection disposal. It not only solves the practical problems of enterprises but also provides replicable and implementable practical experience for the industry to solve the stubborn problem of sludge "soft spot". This further promotes the improvement of the industry's treatment level.