how to achieve the reduction and comprehensive disposal of resource-based sludge through the ditch?
with the continuous development of urbanization, the gradual increase in the length of the municipal pipe network and the continuous standardization of its cleaning and maintenance, the amount of sludge in the drainage pipe is also growing, and the society pays more and more attention to its disposa
with the continuous development of urbanization, the gradual increase in the length of the municipal pipe network and the continuous standardization of its cleaning and maintenance, the amount of sludge in the drainage pipe is also growing, and the society pays more and more attention to its disposal problems. according to the principle of "reduction, harmlessness and recycling", it is of great significance to realize the reduction of sludge in the ditch and the comprehensive disposal of resources.
the physical and chemical properties and characteristics of sludge determine the way out of its disposal. in order to achieve the comprehensive disposal of the reduction and resource utilization of the tonggou sludge, the particle size in the sludge is graded, and the corresponding disposal route is selected according to the physical and chemical biogenesis characteristics and characteristics of the particulate matter at all levels, such as:
(1) coarse substances (particle size >10mm) can be used externally for construction waste for landfill treatment.
(2) the organic burn loss content of sand gravel (particle size is 0.2~ 10mm) is less than 3%, which can be recycled as a low-grade building material.
(3) organic slag (2 ~ 10mm) can be used for sludge composting or as a carbon source for sewage plants to supplement to biochemical treatment units.
(4) mineralized substances (particle size <0.2mm) can be used as municipal road subgrade backfill sand construction for recycling.
this comprehensive disposal method of reduction and resource utilization is not limited to a single disposal path. it can be seen that the fractional separation of particle size at all levels of sludge is a necessary condition for subsequent reduction and comprehensive disposal of resources, which can reduce soil pollution and landfill volume, realize the recycling of gravel and fine sand in the sludge of waterway ditches, and return the organic matter in the sludge to the sewage treatment plant to protect the ecological environment.
sludge is a potential resource with great utilization value, and the treatment and disposal of tonggou sludge and the realization of reduction and resource utilization are the hot directions of the development of the industry today. the newly developed skid-mounted trench sludge treatment equipment developed by desen environment is a combined complete set of soil remediation equipment with a combination of scientific processes. the equipment itself and the combined process meet the requirements of the tonggou residual mud reduction treatment process, the tonggou residual mud is scrubbed, screened and graded according to the particle size standard, and the organic matter and inorganic matter in the mud are effectively separated, and the separation rate of organic matter (floating matter) reaches 50-70%, which effectively realizes the harmlessness, resource utilization and reduction of the treatment and disposal of tonggou sludge.
