TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred System: Each of the water, microorganism, nutrient, input units and the culture vessel output unit are openings into the culture vessel to which a hose external to the culture vessel is attached. (I) further comprises a water source connected to the water input. The culture vessel further comprises a heater and a recirculation pumping unit. (I) comprises several stock microorganism and nutrient media containers, and the stock microorganisms and nutrient media are contained in plastic bags located in the containers. The computer controls their addition into the culture vessel. (I) also comprises two of the single chambered culture vessels set up individually from which the active logarithmically growing microorganisms are continuously applied to the biodegradable waste. EXAMPLE - Two oz. of LRC-2 (microbial blend designated for treatment of waste water) was diluted in 5 gallons of water to make the stock solution that is placed in stock microorganism containers. A 110 gallon culture vessel was filled with water and heated to 98 degrees F after which the culture vessel (vessel 1) was booted up by adding 16 oz. of the stock microorganisms and 40 oz. of the nutrient media to water. Four oz. of stock microorganisms and 10 oz. of nutrient media were added to this culture vessel every 20 minutes. A control vessel (vessel 2) was filled with water and heated to 98 degrees F but no stock microorganisms or nutrient media was added to this vessel. After 12 hours of culturing the microorganisms in culture vessel 1, water was allowed to flow into the culture vessel at the rate of 12 gallons per hour and then made to flow out of culture vessel into separate treatment tub containing waste water. Treatment of waste water was continued for three weeks and then tested using plate count, pH, biological oxygen demand (BOD), total settleable solids (TSS), and oils and grease (FOG). The results of the testing showed that the microbial treated waste water had reduced BOD, TSS, and FOG over time and as compared to the results obtained with the liquid flowing out of vessel 2. Reduction in these above parameters show that the active, logarithmically growing microorganisms are capable of reducing the levels of major indicators of contamination and pollution in waste water.