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In the operation and maintenance of the city's underground blood vessels, the treatment of ditch sludge has become a pain point that troubles municipal departments. Traditional treatment methods are not only inefficient, but also difficult to cope with the complex differences in the properties o

In the operation and maintenance of the city's underground blood vessels, the treatment of ditch sludge has become a pain point that troubles municipal departments. Traditional treatment methods are not only inefficient, but also difficult to cope with the complex differences in the properties of sludge in the diversion system, the combined system and different regions - from the accumulation of sand and gravel on the main road to the oil and pollution deposition in the commercial area, from the organic matter fermentation in the residential area to the special pollutants in the industrial area, each scenario requires a customized solution.

The modular ditch sludge treatment system innovatively developed by Desen Environment is a technological weapon to solve this industry pain point. The system adopts the design concept of "intelligent combination of process modules", like a freely assembled pollution control magic cube, and flexibly adjusts the treatment process according to different sludge characteristics: when facing inorganic sludge in the diversion rainwater network, the enhanced vibration screening + hydrocyclone module can quickly achieve sand and gravel separation; when dealing with high COD sewage network sludge, the intelligent dosing + biodegradation module is immediately started; facing the complex components of oil and pollution mixed in the catering area, the unique pyrolysis cleaning + multi-stage flotation module shows powerful performance.

Modular design: flexible response to multiple scenario needs

The core of the Desen system lies in the integrated modular design, which can flexibly configure the equipment combination according to the actual processing scale, site conditions and sludge composition. For example, the main equipment occupies an area of only about 700 square meters, supports rapid installation and transfer, does not require large-scale infrastructure investment, and greatly saves time and cost. Desen Environment's system can customize pre-treatment modules (such as coarse screening devices) for garbage and construction waste mixed in sludge, effectively separate debris and avoid equipment loss. This "building block" assembly mode enables the same set of equipment to adapt to various scenarios such as municipal pipe networks, river dredging, and mine restoration, truly realizing "one machine for multiple uses".

Efficient processing: scrubbing and screening + intelligent control, reducing costs and increasing efficiency

The Desen Tonggou sludge treatment system adopts multi-stage scrubbing and screening technology, removes organic matter through high-pressure water flow, and combines vibrating screens, spiral sorting and other processes to accurately classify sludge into sand, fine sand, organic matter and other components, significantly improving resource recovery rate. Taking a certain project as an example, the system has an hourly processing capacity of 30 tons, and the sludge moisture content has dropped from more than 80% to less than 30%, with a volume reduction of more than 70%, which greatly reduces the transportation and disposal costs.

In addition, the Desen Tonggou sludge treatment system is equipped with a 5G intelligent control module, which supports remote monitoring and "one-button start and stop", and adjusts the process parameters in real time to adapt to different mud qualities to avoid energy waste. For example, the smart management and control technology mentioned in the "14th Five-Year Plan" innovation results makes the power consumption of a single ton of sludge treatment only 4.7 degrees and the water consumption 3.8 tons, which saves more than 60% energy compared with traditional processes.

Resource utilization: turning waste into treasure to help "zero-waste city"

The Desen system aims at "reduction, harmlessness, and resource utilization", and converts the separated components into usable resources: sand and gravel, fine sand: can be reused as building materials after washing; organic matter is generated into biomass fuel through composting or fermentation; the closed-loop circulating water system achieves a 90% reuse rate, and the remaining tail water meets the discharge standards. Taking the Nanchang project as an example, the system processes hundreds of cubic meters of sludge per day, the recycled sand and gravel are used for road paving, and the organic matter is made into fuel. The resource utilization rate exceeds 85%, which is in line with the goal of building a "zero-waste city".

Faced with the complex challenges of urban pipe network sludge management, Desen Environment has broken the traditional shackles with technological innovation, and achieved a dual improvement in environmental and economic benefits through modular design, efficient treatment and resource utilization. In the future, with the continuous iteration of technology and the deepening of policy support, this system is expected to become the "standard configuration" of urban green development, promoting sludge management to a higher level of sustainable development.