Cultivation and dispensing of bacteria

A method of removing grease from grease traps cultivating bacteria, comprising the steps of:

• a) cultivating bacteria through the steps of:
• i) providing a conduit with an upstream section and a downstream section and a mixing chamber into which the conduit discharges,
• wherein the upstream section of the conduit comprises an inlet in fluid communication with a source of water and a first valve associated with the conduit, said first valve controlling a supply of water along said conduit from the inlet;
• the downstream section of the conduit comprising a first Venturi eductor with at least two inlet ports, wherein one of said inlet ports is in fluid communication with a supply of nutrient and another of said inlet ports is in fluid communication with a supply of dormant bacteria suspended in liquid respectively,
• wherein the method further comprises the step of employing a second Venturi eductor in fluid communication with the first Venturi eductor and connected in series between the first Venturi eductor and the mixing chamber,
• ii) passing water along the conduit such that a pressure drop in the first Venturi eductor draws the nutrient and the dormant bacteria suspended in liquid into said eductor to discharge into the mixing chamber and mix therein;
• iii) allowing the dormant bacteria suspended in liquid in said mixing chamber to cultivate for a predetermined period of time;
• iv) repeating steps (ii) and (iii) until a desired amount of the dormant bacteria suspended in liquid is cultivated;
• and
• b) dispensing the cultivated bacteria into the drainage pipe of the commercial kitchen via an outlet port present in the mixing chamber,
• wherein said second Venturi eductor having at least one inlet port, wherein the at least one inlet port of the second Venturi eductor is in fluid communication with a supply of air such that, in use, air is drawn into said second Venturi eductor by the water, nutrient and bacteria mix passing from the first Venturi educator in to the second Venturi educator and wherein the air supplied to the system is drawn from the atmosphere.