20
Air Toxics – Nebraska Ethanol Plants
lHazardous Organic NESHAP (HON) Standards
n98% Control
n20 PPMV HAP
lFermentation - Scrubber
n98% control
•With chemical additives achieve 80 to 90 % control
•W/O C\chemical additives achieve 30 to 35 % control
n20 ppmv HAP
•–Only 5 of 29 tests less than 20 ppmv
•– Only 4 of 13 sources met this requirement
lDistillation Columns - Scrubber
n98 % control
• Inlet/outlet tests not yet conducted
n20 ppmv of HAP
•Only 1 of 8 tests less than 20 ppmv
•Results range from 17.2 ppmv to 721 ppmv