Patent ID: 8287625

Claim:
A system for removing hydrogen sulfide from landfill gas including a treatment unit, a recapture device and a recirculation unit, comprising: the treatment unit including at least one of a plurality of enzymes to treat the landfill leachate with the at least one of a plurality of enzymes, wherein a first pH sensor is attached to the treatment unit to determine the pH level of the leachate in the treatment unit; the landfill gas recapture device, distinct from a landfill mass, facilitates absorption of hydrogen sulfide in the landfill gas extracted from a landfill by the treated landfill leachate from the treatment unit; a nozzle configured to introduce the landfill gas into the landfill gas recapture device; a first pump that withdraws a first portion of spent landfill leachate laden with absorbed hydrogen sulfide from the landfill gas recapture device; the recirculation unit regenerates the first portion of the spent landfill leachate laden with absorbed hydrogen sulfide, a second pH sensor is attached to the recirculation unit that determines the pH level of the leachate in the recirculation unit; a second pump that recycles the regenerated landfill leachate from the recirculation unit to the landfill gas recapture device.