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

Source Category

Source: Boiler or Water Heater - Landfill or Digester Gas Revision: 2
Document #: 17.5.1
Class: All Date: 04/21/93

Determination

POLLUTANT

 BACT
1. Technologically Feasible/ Cost Effective
2. Achieved in Practice		 TYPICAL TECHNOLOGY
POC 1. n/d
2.Automatic combustion air control and retention time >0.3 sec. at >1600oF		 1. n/d
2. BAAQMD Approved Design and Operationb
NOx 1. 20 ppm @ 3% O2, Dryb

2. 40 ppm @ 3% O2, Dryb,c		 1. Selective Non-Catalytic Reduction (SNCR ) Technologies listed belowb
2. Low NO2, Burners + Flue Gas Recirculation + Reduced Air Preheatb
SO2 1. n/s

2. n/d		 1.Spray Dryer + Baghouse; or Fuel Gas Pretreatment Systema
2. n/d
CO 1. n/d
2. 100 ppmv @ 3% O2 Dryb,c		 1. n/d
2. Good Combustion Practice in Minimal Gas Bypassing in Furnacea
PM10 1. n/s

2. n/s		 1. Baghouse or Electrostatic Precipitator
2. Fuel Gas Filter
NPOC 1. n/a
2. n/a		 1. n/a
2. n/a

References

b. BAAQMD
c. County of Los Angeles Sanitation District