One unit of Hydrovac excavation waste slurry treatment system is shipped to Canada, the function of this treatment system is to recover the water and remedy the soil, the environmental protection regulation is very strict in North America, we already have 2 units of such hydrovac excavation waste slurry treatment working in the State.
The slurry treatment system is consist of equipments below:
1) Waste collecting hopper:
The waste collecting hopper collect the waste slurry discharged from hydrovac truck.
2) Course solids washing tank
The coarse screen under waste collection hopper will separate the big size trash and other mass firstly before feeding to the high G drying shaker.
The high G drying shaker with GN brand composite material frame shaker screens will separate most big size solids and reduce the solids content before feeding to the desilter cone.
3) Fine solids washing unit
Fine solids is separated by desilter cones and the solids is drying by the bottom drying shaker so the discharged soil will be drier for disposal and more fluids will be collected.
4) Dewatering centrifuge unit
The dewatering centrifuge is 22 inch big bowl big volume centrifuge with feeding pump and telescopic skid. The result will be better by using chemical dosing system. The ultra fine solids below 2 microns will be separated by decanter centrifuge with dewatering unit.
Our engineer ever fly to the working site twice to check the client’s treated material, and make the customized design for his first project, after commissioning and installation in the client’s site, he is satisfied with the performance and ordered a similar system for his second project. The client in Canada got the working video and design for the 2 units of soil washing system and satisfied with the process, then he ordered the similar system. Hydrovac excavation waste slurry treatment system is one of the application of GN solids control equipment.