Pipeline sludge solidification treatment method

Abstract

A pipeline delivering method for treating and solidifying the sludge to obtain a building filler includes such steps as indoor solidifying experiment of the sludge to be solidified to determining the relation between its compression strength and total water / cement ratio, sieving the dredged sludge by 1-cm sieve, measuring its content of water, filling cement slurry in pipeline while regulating its water / cement ratio, and using high-pressure air to mix the cement slurry with said sludge and drive the mixture to flow to obtain the solidified sludge.

Description

technical field The invention relates to a sludge solidification method, which is suitable for the treatment of dredging fill sludge and belongs to the technical field of foundation treatment. Background technique With the rapid development of my country's economy, construction projects such as port engineering, waterway engineering, and water conservancy engineering have increased rapidly. In the dredging process of various waterways and in the construction and expansion of ports, a large amount of dredged soil is usually produced. According to incomplete statistics, the discarded dredged silt in my country reaches 100 million m3 every year. 3 Above, the engineering quantity of dredging silt treatment is very considerable. Currently, there are two methods of silt treatment that are often used, one is to throw the silt into the sea, and the other is to fill the land with cofferdams near the shore. The main problem of sludge disposal is that the existing dumping area has be...

AI Technical Summary

Problems solved by technology

The solidification cost of this sludge is greater than 200 yuan per cubic meter, and this process is not suitable for my country's national conditions