The Technology of Hydrodedusting of Coal Pits’ Auto Roads Using Purified Wastewater and Drainage Water

Abstract

The experience of the Arshanovsky coal pit in solving the problem of rational water disposal is presented. A wastewater and drainage water treatment system is proposed that can significantly reduce the content of suspended particles in clarified water discharged after settling and filtering – up to 1.5–5 mg/dm3, while the effect of water clarification is more than 95 % with a sharp decrease in the content of cyclic hydrocarbons and organics. In order to determine effective directions, in laboratory conditions, rational parameters of nozzle hydrodedusting were determined for varying degrees of water dispersion using treated wastewater and drainage water. It is established that the most effective mode of operation of the fine-dispersed irrigation system with a nozzle diameter of 1.0 mm. The obtained parameters of finely dispersed irrigation can be adapted for irrigation vehicles.