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       CODE: 558.565-010 Buy the DOT:Download/CD-ROM
TITLE(s): ACID-PLANT HELPER (chemical)
Tends furnace, absorber, cooler, scrubber, and auxiliary equipment used in producing phosphoric
acid by oxidation and hydration of elemental phosphorus: Patrols work area; observes water levels in
scrubber, venturi-duct pan, and cooling-tower basin; and reads flowmeter and pressure gauges on
phosphorus pump, fans, and blower to verify process conditions. Records or calls readings to
operator. Observes flow of cooling water over top and outer walls of furnace to ensure uniform
distribution, and notifies operator of malfunction. Takes sample of cooling water for laboratory
alkalinity test. Turns valves to transfer acid to specified storage tanks and to start and stop
water sprays in absorber, as directed, to control acid strength. Removes and replaces screens and
filters, using wrenches. Opens valves to flush phosphorus pump and water-treating equipment with
steam and regenerative chemicals.
GOE: 06.04.11 STRENGTH: L GED: R3 M1 L2 SVP: 4 DLU: 77
ONET CROSSWALK: 92938 Chemical Equipment Tenders
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