METHOD OF UTILIZATION OF MERCURY-CONTAINING LUMINESCENT LAMPS

摘要

FIELD: environment control. ^ SUBSTANCE: mercury-containing luminescent lamps are broken, separated into broken glass and mercury-containing luminophor in flow of air at rarefaction of 10-100000 Pa at application of vibrations within range of 1-10000 Hz. Mercury-containing luminophor ground to sizes not exceeding 1 mm is heated in hermetic reservoir at temperature of 600-900°C at 30-min holding. Mercury vapor is condensed in cooled trap. Provision is made for dual hermetization in conducting all processes. Proposed method ensures complete utilization of luminescent lamps into metallic mercury, non-ferrous metal, glass raw material and building material which are returned into production process. Content of mercury in wastes is less than 3 ppm which is below sensitivity of modern analytical facilities. ^ EFFECT: facilitated procedure; increased productivity. ^ 1 tbl