Steam Injection for Wastewater and Sludge Treatment

Pick direct steam injection is an excellent alternative to conventional sludge heating methods, offering dramatic reduction in capital and installation costs while providing exact temperature control. The benefits of preheating sludge upstream of the thermophilic digesters are well documented. However, doing so is a costly proposition, especially with traditional processes using indirect heater exchangers.

Pick Heaters, Inc. offers steam injection heaters designed specifically for sludge service. These couple Pick's proven method of steam injection with a fabricated housing - available as inline or elbow configuration to best suit your sludge piping arrangement. Generous internal clearances and smooth contours impose negligible pressure drop and allow free passage of stringy matter. Hard facing is available on the internal surgaces of the housing and the injector can be surface hardened to resist erosion when heating sludge containing abrasive grit.

 

Applications include:

Thermophilic Digestion Process
A direct steam injection (DSI) heater offers several advantages over an indirect heat exchanger in this process. It is compact, imposes negligible pressure drop, and is easy to maintain.

Anaerobic Treatment of Organic Waste
The Pick Heater can handle large volumes of liquid with a low liquid side pressure drop, while maintaining the tight temperature control necessary in the anaerobic process.

Pick Steam Injection Heaters for Swine Manure
When a major meat processing company committed to building a waste to energy facility, they called on Pick.

Anaerobic Digester Expansion Application