Biosolids Management Engineering

Biosolids (treated wastewater sludge) used to be considered a waste product. Today, biosolids are a resource that can be beneficially used.  For example, properly processed biosolids can be a supplement to fertilizers or soils providing additional nutrients, organic matter and trace elements while improving soil structure. 

 

For years, methane gas resulting from biosolids digestion has provided a useful product from waste. Newly applied technologies like gasification allow biosolids to be directly used as a supplemental source of energy – waste producing “green” energy.  

 

King’s experience with biosolids began in 1992 with the design and permitting of a regional biosolids treatment facility for Pasco County. The system used a combination of belt filter presses and a patented process to create a dried biosolids product to meet the US EPA’s Class AAA treatment level for public marketing.  

 

Since then, we’ve designed several types of waste management systems including activated sludge storage and thickening facilities using belt filter presses and rotary drum thickeners and pelletizing facilities preparing dried product for the fertilizer industry.  We have also assisted clients with a number of regulatory efforts regarding the disposal of biosolids or the construction and operation of biosolids facilities – including Title V Air Permits.