Dive summary:

• Rumpke Consolidated Companies is asking permission from the Ohio EPA to use 2,741 gallons of odor neutralizer every month in their landfill in Colerain Township, Ohio.
• Something in a small area, about 100 feet down, is causing problems for the landfill and their neighbors; Rumpke hopes the almost 3,000 gallons of odor neutralizer distributed through 200 nozzles will start to help.
• In the past the landfill has tried installing trenches to capture the odors and adding odor control blanket, neither had satisfactory results so researchers say this is now the best bet.

From the article: 

Rumpke is requesting an increase in odor neutralizer use in part to eliminate odors coming from a reaction occurring in a small area of the landfill, the Cincinnati-based company said in a news release. The reaction is happening 100 feet below the landfill’s surface. The reaction is not a fire and poses no health risks.

With the new permit Rumpke could use 2,741 gallons of odor neutralizer mixed with more than 2.7 million gallons of water monthly, the company said. The company distributes the odor neutralizer through more than 200 spray nozzles attached to more than 6,100 feet of hose, 20 industrial fans and mobile spray dispensers. ...