Sediment in urban drainage networks can cause a range of operational and environmental problems, including pipe blockages, greenhouse gas emissions, pipe corrosion, odors, and overflow pollution. In the context of carbon neutrality and sustainable development, more efficient and proactive management measures are needed to reduce the negative problems caused by sediment in drainage networks. At the same time, with the development of urbanization and the gradual expansion and improvement of the urban pipe network system, it is urgent to rationally dispose of more and more sludge from the pipeline sediment.
The properties of sludge in different cities are very different, and the properties of sludge are also affected by the type of pipe network and land use. The wet multi-stage separation treatment process has strong adaptability to the change of sludge properties in Tonggou, and can also take into account the resource utilization of sludge. In view of the concept of "water saving is pollution control" and adhering to the policy of giving priority to water conservation, for water sensitive areas, the Tonggou sludge treatment process can be used for full reuse of flushing water. This process can realize about 100% flushing water reuse, which is conducive to greatly reducing the tailwater discharge and improving the resource utilization rate of sludge in the ditch. The process can be employedMobile ditch sludge treatment stationform, to solve the problem of scattered sludge treatment points in the ditch.
Developed and manufactured by Desen EnvironmentSkid-mounted pipe trench sludge treatment equipmentThrough scrubbing, screening and grading of pipe ditch sludge, the sediment and debris can be effectively separated, so as to meet the needs of reduction, harmlessness and resource treatment of the sludge in the ditch. The working principle of this equipment is to use hydraulic shock and friction to separate the organic and inorganic substances in the pipe trench sludge. The specific process is as follows:
The pipe ditch (through ditch) sludge is fed into the cylindrical scrubbing machine through the conveyor belt, and under the action of high-pressure water flow, it is vigorously scrubbed and washed to strip the organic matter from the inorganic matter.
The scrubbed material is preliminarily graded by the screening machine, and the debris larger than 10mm (such as plastic bags, bottles, etc.) is separated from the material, and is used or harmless.
After the preliminary classification, the material enters the washing and selection module, and is scrubbed and washed twice on the rotating screen, and the organic matter (such as paper, leaves, etc.) less than 10mm is separated from the inorganic matter (such as sand and gravel, etc.), and is used or harmless.
After the second scrubbing, the inorganic matter will be less than 05mm of fine sand from greater than 05mm coarse sand is separated and processed for ** utilization or harmless treatment.
The coarse sand after the fine sand classification and screening is dewatered by the dewatering screen, and the first utilization or harmless treatment is carried out.
The wastewater generated in the scrubbing and screening process is separated and removed from the suspended solids and dissolved substances in the water through the solid-liquid separation and water treatment system, and is used or harmlessly treated.
The sieved matter separated from the Tonggou sludge treatment process has a good potential for resource utilization, and the appropriate resource utilization technology can be selected according to the specific properties of Tonggou sludge. futureTonggou sludge treatment processThe development should be towards greater carbon reductions, as well as unattended industry 40 direction development to further improve the socio-economic benefits of the treatment process and reduce the cost of process operation and maintenance.