Local treatment facilities of the Belgorod Abrasive Plant OJSC

Summary

In the process of developing local treatment facilities at the Belgorod Abrasive Plant the experts of EkoTON Company used integrated multi-factor approach with exploratory design and adjustment of the facilities to provide for assured efficient wastewater treatment. Carrying our exploratory experimental design was motivated by developing an optimal process flow scheme of the local treatment facilities with account of the set of interrelated factors that determine both process and economic efficiency of their operation. As a result of the survey a process flow scheme was suggested that ensured meeting the standard effluent quality for discharge into the public sewer. The process flow scheme of the Belgorog abrasive plant wastewater treatment is described in details; the expediency of using EKOTON advanced equipment – flotation unit and MDQ screw dehydrator is proved. On the basis of experimental data on raw wastewater and effluent quality the efficiency of treatment was calculated and the parameters required to choose the optimal operation mode of the local treatment facilities were determined. The measurement results showed that the wastewater treatment efficiency has been permanent for the entire period of observing the initial pollution concentrations. This fact gives evidence of the correct choice of the process flow scheme with account of the operating schedule of the plant, pollution form etc. The high efficiency (to 98.2%) of reducing the concentration of grease, oils and oil products proves the optimal chemical dosages and efficient wastewater treatment in the flotation unit. The flocculant consumption is less than 25 kg per month as dry matter at the wastewater flow rate to 6200 m3 per month.

Key words

wastewater , grate , grit chamber , dehydrator , local treatment facilities , flotation unit