Research facilities13

Treatment of the gaseous waste from research facilities is performed to remove radioactive particles before discharge into the environment. The off-gas from the ventilation system is passed through a HEPA filter, and then discharged through a stack after radioactivity measurement.

Small amounts of liquid waste are generated from chemical drains, floor drains and detergent waste. These wastes are treated to remove radionu­clides by flocculation or evaporation, and discharged into the environment. Pre-treatment such as neutralization is performed before treatment as needed.

In many small laboratories, solid wastes are placed in containers for storage without treatment. However, large institutes, in which many solid wastes are generated, treat the solid waste to reduce its volume for storage. The solid waste treatment system consists typically of pre-treatment, incin­eration and super-compaction. The pre-treatment is composed of cutting and segregation. Large wastes are cut into small pieces appropriate for compaction/packing. Solid wastes are sorted into combustible wastes and non-combustible wastes. The non-combustible wastes are further sorted into compressible and incompressible wastes. The combustible wastes are burned in excess air-type incinerators, and then stored. The compressive wastes are compressed with 20 MN force at the super-compactor. The waste compacts and incompressible wastes are placed in 200 L storage drums.

Добавить комментарий

Ваш e-mail не будет опубликован. Обязательные поля помечены *