The solution to the sludge problem:
Overall, "the cost issues caused by high energy consumption and the complete absorption of sludge are two extremely important factors in the sludge treatment and disposal process, leading to a disconnected industrial chain."
1. To eliminate falsehood and preserve authenticity, priority should be given to using innovative drying technologies that solve the problem of "high energy consumption, high cost, and low reduction" to solve the bottleneck problem, "turning high energy consumption into low energy consumption", saving energy and reducing consumption, reducing secondary dilution and other reverse process operations, and transforming high carbon emissions into low carbon emissions. At the same time, avoid adding treatment agents or high increment lime that cause secondary pollution, thereby bringing feasibility to the resource utilization of backend disposal.
2. Forming a full industry chain thinking, "turning difficult problems into business opportunities" to resolve difficulties for disposal units. Transforming the helpless actions of high energy consumption, low efficiency, and high cost loads into profitable business opportunities. Using a "1+N model" tailored to local conditions, the drying of excess sludge is closely integrated with different disposal processes, such as drying to 55% -60% composting; Drying to 50% utilization of building materials; Drying to 40% collaborative incineration power generation; Drying to 30% pyrolysis and carbonization, while the government takes the lead and actively connects with local backend disposal to diversify the way out.
3. Industrial capitalization operation thinking, "turning sludge into assets". The government takes the lead and encourages social capital to participate in sludge operation, capitalizing sludge. Based on the value attributes of public resources, transform cold disposal facilities into tradable sludge assets, establish multiple standardized and specialized vertical operators of sludge, initiate and establish sludge industry funds or utilize Reits, and involve upstream, downstream, and capital.
The regulation of sludge treatment and disposal is becoming stricter and normalized. In addition, under the overall national plan of carbon peaking and carbon neutrality, the issue of back-end solutions for sludge treatment and disposal still needs to be highly valued from a policy level, including but not limited to the harmless and proper disposal of existing sludge, the construction of sludge treatment facilities, and the research and development of new technologies and technological breakthroughs in sludge treatment and disposal, Increase the punishment for environmental violations, etc.