Uulletin LD-J

F amw! arKI Di~es~or Saves,-fullyenclosed or

semi-enclosed

odor-free protection ofmethane-recovery systems

NAO Landfill and Digestor Flares#Safety and environmental protection with hazardous vaporsI) reliable odor-free disposal when recovery systems are down

Landfill and sewage digestor gases can bevaluable energy sources. But there are odorproblems. These waste gases containhydrogen sulfide and other foul-smellingsulfurous hydrocarbons.

When clean-up/recovery operations arenteconomically vrable - or in the case ofequipment malfunctions - safe, odor-freedrsposal of the volatile gases is necessary.

With more than 80 years of combustionexpertise, NAO has pioneered inncvationsfor disposal of waste gases, onshore andoffshore. Our landfill, digestor gas and sourgas flaring systems incorporate state-of-the-art technology. NAO enclosed landfill flares,for example, are compact, virtually invisible,smokeless and noise-free.

Reliable ignttion and complete combustionare assured wrth fall-safe monitorrng andbuilt-In alarms.

Additional Information

For detailed information about Landfill andDigestor Gas Control, request NAOTechnical Report #8-88-l and FlareTechnology Safety, a reprint from ChemicalEngineering Progress.

Other References: Bulletin

Automatic lgnrtorsSpark-Ignited PilotsConservation PilotsFlare ArrestorsWater Seals/DrumsEnclosed Flares

33D, E & FSIP-133A

356, 356-l

NCDWSDD5 7

Roof-nMMltedenclmed flare bfor sewage digestor unit.With a heatingvalue of 500 to600 Btu/scm(1s tn 22Ml/m% wagedig&or gas canbe an excellentfuel.

EncEosedoxidizers forsewage dig&or, mOrlando, Florida

Pilots can be arrangedfor multi-fuel sources.

Landfill, Digestor and Sour Gas@ High-efficiency Venturi injector * assures optimum

gas/air mix a ultra-reliable ignition systems

Enclosed landfill flare.

Suction blowers for landfillgas gathering.

Shipment of alarge encloseddigestor flare.

Open, semi-enclosed and.fully enclosed flares.