Performance review and development of measures to improve the efficiency of the ventilation system at JSC Salavatsteklo

Summary

Performance analysis of the exhaust ventilation system of the glass plate production workshop at the Salavatsteklo JSC plant in Salavat city, Republic of Bashkortostan, was carried out. The problems identified in the operation of the exhaust ventilation system are described, and measures to eliminate them have been developed. The air ducts were cleaned of deposits of TOP COAT AX GRAY coating material used for mirror manufacturing. The composition of these contaminants includes flammable resins, that when cooled, form a thick layer of dense sludge. The results of cleaning air ducts and ventilation equipment using modern devices are presented. Herewith, an increase in the energy and environmental efficiency of the exhaust ventilation was noted alongside with the energy resources saving by reducing electricity consumption and concentrations of the harmful compounds in
polluted air.

Key words

cleansing , air flow rate , efficiency , pollutants , exhaust ventilation system , air duct

Designing the aeration system of grit chambers

Summary

The procedure of designing the aeration system for grit chambers including energy relations and formulas for calculating the diameter and rate of air bubbles ascent is presented. The suggested relationships showed close agreement of calculated and experimental values of the transverse water circulation rate in the aerated grit chamber. On the basis of domestic and foreign recommendations on the given design procedure the bottom velocity of water circulating flow in typical aerated grit chambers was calculated. It was shown that the use of fine bubble aerators provides for 30–50% air saving.

Key words

air flow rate , grit chamber , aeration system , flow bottom velocity

Aeration Systems of High Capacity

Summary

Design characteristics of aerators of high capacity produced by the Ecopolymer Group are presented. Comparing with other apparatus Ecopolymeraerators have the highest air flow capacity, in the process their mass-transfer characteristics remain at high level. An unique innovative toroidal AQUA-TOR aerator, which can easily substitute three standard 12-inch membrane aerators is described. An AQUA-TOR aerator membrane modification has been developed by the Ecopolymer Group in cooperation with SIF Patfil. The Ecopolymeraerators of various modifications – high efficient, reliable, having a long time of operation – operate in aeration tanks of any design and in wastewater of any composition.

Key words

aeration tank , aerator , air flow rate , mass-transfer properties , polyethylene pipes , dispersive elements