Dartmouth Times

F.O.G. is a term used in the wastewater field to  describe fats, oils, and grease. These products are introduced into the  waste stream from cooking, showering, dishwashing, mechanical  maintenance, and other sources of everyday life. The most common places  that introduce FOG into the wastes stream are restaurants, car washes,  garages, and households. Most of these businesses have grease and oil  separators that are designed to remove the grease and oil from the waste  stream before it hits the collection system, avoiding downstream  problems with pipes, valves, and plant equipment and process.

When  fats, oil, and grease enter the system they mix with the sanitary waste  contained in the collection system, congeal, and harden. The  FOG will stick to the sewer piping, building up over time and causing  blockages to pipes which could cause a sanitary sewer overflow allowing  sewage to contact rivers and streams or your yard! Once the FOG  enters the wastewater treatment plant it can cause pipe and equipment  blockages, can coat electronic sensors, build up on the surface of  tanks, and has a detrimental effect on the biological process and their  ability to digest waste. In short, high volumes of fats, oils, and  grease dramatically affects the overall effectiveness of the treatment  that the plant should be providing.

What can you do? FOG is best eliminated at the source. Taking steps to exclude it from the waste stream benefits everyone. 

• If  you own or operate a restaurant, check your grease separators  regularly, perform maintenance on them, and have them serviced when  needed. 
• If you are cooking, have a grease can that can be used  to collect the hot grease. Wipe out frying pans with a paper towel.  After it cools or the can is full, it can be discarded into the trash. 
• If  you do vehicle or equipment maintenance, do not dump used oil into a  drain ever! Collect it in a barrel and dispose of it properly. There are  people who may take the waste oil for heating and companies that  specialize in the removal of those wastes that can be contracted to do  so.

It is important that people understand the impact that  FOG has on the City’s public utility and that everyone has a part in  ensuring that it remains successful. These are expensive problems for  not only the City of Lebanon but also the residents and users of that  utility. Anything we can do to avoid FOG-related problems benefits all  of us. For more information on the City of Lebanon's Wastewater  Treatment, please visit the Wastewater Treatment web page. 

Original source can be found here.