| Popis: |
Typical operating parameters for a chlorine dioxide generator installed on a hydrocooler (7560 L water capacity) for pickling cucumbers were ascertained. The recycled hydrocooler water (2-8°C) was maintained at 1.3 ppm chlorine dioxide to effectively control microorganisms. The rates of chlorite, hypochlorite, and hydrochloric acid use to generate chlorine dioxide were linearly related to the quantity of cucumbers hydrocooled for operating runs of 172 and 304 field boxes (705 L each, 20 bushels) intermittently hydrocooled over two 16 h periods. Use rates were 0.056 to 0.082 (chlorite), 0.052 to 0.078 (hypochlorite) and 0.022 to 0.029 (hydrochloric acid) kg/box hydrocooled. Materials cost for chlorine dioxide treatment was $0.24 to $0.29 per box. Optical density increased and total solids accumulated in the hydrocooler water in direct proportion to product throughput for both tests. |
