Improving understanding of ditch sludge will help formulate appropriate treatment technology solutions
Ditch sludge refers to the sediment removed from dredging during drainage pipe maintenance. Its composition is a mixture of water/mineralized particulate matter. The organic loss on ignition accounts for 10% to 30% of the total dry sludge. The sediment contains harmful substances such as heavy metal
Ditch sludge refers to the sediment removed from dredging during drainage pipe maintenance. Its composition is a mixture of water/mineralized particulate matter. The organic loss on ignition accounts for 10% to 30% of the total dry sludge. The sediment contains harmful substances such as heavy metals arsenic and zinc. Ditch sludge includes not only particulate matter and impurities that enter the pipeline transportation system with domestic sewage and industrial wastewater, but also road dust, garbage, and mud discharged from some construction sites. If not cleaned in time, it will easily reduce the transportation function of the drainage pipeline, causing Poor drainage will cause water accumulation and sewage overflow. The silt deposited in the pipes will also enter the rivers with rainwater during rainy days, causing water pollution.
There are also great differences in the properties of trench sludge in different pipe network types. The sewage sludge in the diversion sewage pipe network contains a lot of inorganic substances such as mud, sand, and stone. The sewage sludge in the sewage pipe network or the combined pipe network often contains a higher proportion of organic matter and even domestic garbage. The sludge may have a higher moisture content, COD and odor concentration than the combined sludge.
When trench sludge overflows in pipelines, it will cause pollution to the receiving water body. Therefore, the type and concentration of pollutants contained should also be paid attention to. In addition to the content of carbon, nitrogen, phosphorus and other pollutants, the content of heavy metals in trench sludge cannot be ignored. In addition to the possible environmental pollution caused by heavy metals, there are often strict requirements on the heavy metal content in trench sludge disposal products or resource utilization products. The heavy metal content in trench sludge is also closely related to the type of pipe network. The heavy metal content in the channel sludge of the combined pipe network or the pipe network in residential areas and industrial areas is relatively high. To be more precise, it is closely related to human activities.
The skid-mounted trench sludge treatment equipment developed and manufactured by Desen Environment can effectively separate sediment and debris by scrubbing, screening and classifying the trench sludge to meet the requirement of reducing trench sludge. Chemical, harmless and resource-based treatment needs. After treatment, the sewage sludge meets the requirements of GB 18598. The wastewater formed can also be reused after treatment. The water quality meets the relevant provisions of the third-level standards for Class I pollutants and Class II pollutants in GB 8978. It has been put into use all over the country and has received good feedback from customers. Welcome to call us for consultation and get a free Tonggou sludge treatment plan.
