Sewer grease from homes, restaurants, and other commercial and industrial facilities accumulates in wastewater collection systems. It can reduce flow capacity, generate foul odors, and cause dangerous, untimely, and expensive sanitary sewer overflows.
Formula D-220 contains grease-eating bacteria that break down and consume grease, fats, and oils in collection systems. This concentrated blend of harmless microbes reduces grease accumulation by forming a biofilm on the wall of the pipe which reduces grease buildup and improves flow even in low oxygen conditions. It also helps control noxious odors by reducing hydrogen sulfide.
Flow Rate | Initial Dosage | Maintenance |
---|---|---|
Up to 1,000 GPD | ½ lb. per day for 3 days | ½ lb. per week |
Up to 5,000 GPD | ½ lb. per day for 3 days | 1 lb. per week |
Up to 20,000 GPD | 5 lbs.* | 1 ½ lb. per week |
Up to 50,000 GPD | 8 lbs.* | 2 lb. per week |
Up to 250,000 GPD | 15 lbs.* | ¼lb. per day |
Up to 500,00 GPD | 25 lbs.* | ½lb. per day |
Up to 1 MGD | 50 lbs.* | 1 lb. per day |
Up to 5 MGD | 50 lbs. per MGD* | 1 lb. per MGD per day |
Up to 12 MGD | 50 lbs. per MGD* | ¾ lb. per MGD per day |
Up to 100 MGDD | 30 lbs. per MGD* | ½ lb. per MGD per day |
Optimum | Minimum | |
---|---|---|
Influent pH | 7.0 | 5.0 |
Dissolved oxygen, ppm | 2.0+ | 1.0+ |
C/N/P ratio | 100/10/1 | 100/5/1 |
Temperature | 30°C (86°F) | 10°C (50°F) |
Toxic metals, ppm (E.g., hex., chromium) |
0 | 0 |