eter and only 2 cm "high" (12:1280) to Stefan and Bolton's 28 L reactor, which recirculated oxidized(ing) waste liquid at 110 L/min (10:1589). One notes that 110 L/min is 1,744 gallons per hour, much faster than the largest flow rate of FMC's truck-mounted unit. Somewhere in the middle, Beltr?n and co-workers used 850 cm3 (ml) reactors with a flow-through rate of 30 L (7.9 gal.) per hour (1:2416; 2:2406).
The UV energy applied has been varied considerably among reported (lab) studies. Lamp power ranged from 9.5 W (11:1465) to 27.6 W [two 13.8 W lamps] (12:1281); incident flux ranged from 3.8 x 10-6 einstein/L-sec (1:2426; 2:2406) to 9.32 x 10-5 einstein /L-sec (10:1588-89). In the practical world, the Federal Remediation Technologies Roundtable (FRTR), which has reviewed pilot and "full-scale" systems for field use ranging from 1,000 to 1-million gallons per day throughputs (4:3), reported that lamps for these systems operate at 15 to 60 kilowatt power levels (4:1)--surely a major part of these systems' operating costs.
Process Applications. While a fairly young technology, the UV/H2O2 process has been applied to an array of organic (and a few inorganic) pollutants or contaminants.
Beltr?n and his co-workers have applied this process (and UV with ozone--O3) in several lab studies--intended for scale-up to industrial sizes--to both distillery and tomato-processing wastes (2416-17; 2:2405). Benitez and others have studied the process as applied to protocatechuic acid, a "phenolic pollutant present in the wastewaters from olive oil manufacturing" (3:1597).
In the United States, the UV/H2O2 process has been used to treat a "wide variety of contaminants" that are "susceptible" to "UV/oxidation"--including, "petroleum hydrocarbons, chlorinated hydrocarbons used as industrial solvents and cleaners, and ordnance compounds such as TNT, RDX, and HMX" (4:2). "Typically, easily oxidized organic compounds, such as those with dou...