DCAOO9 consists microorganisms and enzymes that degrade grease, cellulose, lignin, proteins, azotes and other organic substances. It also helps the aerobic microorganisms to become dominant in the media. The microorganisms in DCAOO9 degrade the organic deposits collected in the pits by aerobic reactions. Once the organic matter is degraded by our microorganisms the anaerobic ones cannot find enough nutrition. So the foul odor and anaerobic corrosion problems are stopped. Degrading the complex organic matter in the pit to simpler molecules also increases the fertilizing value of the sludge.