Page 621 - Materials Chemistry, Second Edition

CAT3525_C20.qxd 1/27/2005 12:54 PM Page 592
592 Waste Management Practices: Municipal, Hazardous, and Industrial

Table 20.5
Operating Parameters to be Monitored and Minimum Measurement and Recording
Frequencies

Minimum Frequency Control System
Operating parameters Data Data Dry scrubber Wet scrubber Dry scrubber
to be monitored measurement recording followed by followed by
fabric filter fabric filter
and wet
scrubber
Maximum operating parameters
Maximum charge rate Continuous 1 x h x x x
Maximum fabric filter inlet Continuous 1 x min x x
temperature
Maximum flue gas temperature Continuous 1 x min x x
Minimum operating parameters
Minimum secondary chamber Continuous 1 x min x x x
temperature
Minimum dioxin or furan Hourly 1 x h x x x
sorbent flow rate
Minimum HCI sorbent flow rate Hourly 1 x h x x
Minimum mercury (Hg) Hourly 1 x h x x
sorbent flow rate
Minimum pressure drop across Continuous 1 x min x x
the wet scrubber or minimum
horsepower or amperage to
wet scrubber
Minimum scrubber liquid flow rate Continuous 1 x min x x
Minimum scrubber liquid pH Continuous 1 x min x x
Source: 40 CFR Section 60 (Subpart Ec). With permission.

● Fabric filter inlet temperatures
● Amount and type of dioxin/furan sorbent used
● Amount and type of Hg sorbent used
● Amount and type of HCl sorbent used
● Secondary chamber temperatures recorded
● Horsepower or amperage to the wet scrubber
● Temperature at the outlet from the wet scrubber
● pH at the inlet to the wet scrubber
● Records indicating use of the bypass stack

Additional required data include:

● Days and durations of malfunctions, a description of the malfunction, and the corrective
action taken
● Days for which emission rates or operating parameters exceeded the applicable limits, a
description of the excess readings, reasons for such excess readings, and a description of
corrective actions taken
● The results of performance tests conducted to determine compliance with the emission
limits and to establish operating parameters
● All documentation produced as a result of siting requirements