BAY AREA AIR QUALITY MANAGEMENT DISTRICT
Best Available Control Technology (BACT) Guideline

Source Category

Source: Lithographic or Offset Printing - Heatset Revision: 4
Document #: 110.1.1
Class: All Date: 08/24/98

Determination

POLLUTANT

BACT
1. Technologically Feasible/ Cost Effective
2. Achieved in Practice
TYPICAL TECHNOLOGY
POC 1.  Low VOC fountain solution (<6% by vol.); and automatic blanket & roller wash w/ solvent capture & recycle; and cleanup solvents w/ <2.5 lb VOC/gal or VOC vapor pressure <5 mm Hg; and kerosene-like oil based inks.  If cost-effective, capture and vent VOC to afterburner or carbon adsorption system w/ >98.5% destruction/recovery device efficiency; or VOC outlet <10 ppmva,b,T
2.  Low VOC fountain solution (<8% by vol.); and minimum possible VOC blanket wash & roller & tray washes; and cleanup solvents w/ <7.5   lb VOC/gal and VOC vapor pressure <25 mm Hg or <30% by vol.  VOC; and kerosene-like oil based inks
a,T
1. Low VOC Coatings and Solvents; or BAAQMD Approved Collection System and Abatement Devicea,b,T







2.  Low VOC Coatings and Solvents
a,T
NOx 1. n/a
2.  n/a
1.  n/a
2. n/a
SO2 1.  n/a
2. n/a
1.  n/a
2. n/a
CO 1. n/a
2. n/a
1.  n/a
2. n/a
PM10 1.  Oven venting to an afterburner (>0.3 sec. retention time at >1400oF) w/ overall capture/ destruction efficiency >90%a
2. Compliance w/Reg. 6, Visible Emissions
a
1.  BAAQMD Approved Design and Operationa

2. Good Operating Practicea
NPOC 1.  No or low NPOC solutions/washes and kerosene-like oil based inks, or approved abatement system, as for POC abovea,b,T
2.  Low NPOC solutions/washes and kerosene-like oil based inks as for POC above
a,T
1.  Low or no NPOC Coatings and Solvents; or BAAQMD Approved Abatement Systema,b,T

2. Low NPOC Coatings and Solvents
a,T

References

a.  BAAQMD
b.  For abatement devices, the following are acceptable; <10 ppmv at outlet; or >98.5% destruction/recovery efficiency if inlet VOC >2000 ppmv; or >97% efficiency if inlet VOC >200 to <2000 ppmv; or >90% efficiency if inlet VOC <200 ppmv.
T.  TBACT