Spiral heat exchangers, thin film evaporators, wiped film evaporators, short path evaporators, film evaporators, vacuum distillation, mixers, dryers- Gooch Thermal Systems.

THERMAL TREATMENT OF BIOSOLIDS

Gooch Thermal Systems provides in-depth expertise in the design, application and construction of Spiral Sludge Heat Exchangers for efficient and reliable heating and cooling of biosolids at municipal and industrial wastewater treatment plants (WWTP).

The first spiral heat exchangers for sludge digestor heating were installed by Dorr-Oliver™ during the 1950's for their mesophilic sludge Anaerobic Digestion process in North America. In fact Dorr-Oliver™ performed much of the early pioneering work in process development and sizing of spiral heat exchangers for different heat loads and capacity requirements.

Six (6) large GTS spiral sludge heaters were shipped to the City of Philadelphia WWTP completing an order for eight new digestor heaters. Sludge flow rate per unit is between 700 - 800 GPM (160 - 180 m3/h), and each heater delivers 3,000,000 Btu/h (900kW) of heat to the anaerobic digestors.

Smaller capacity spiral heat exchangers for sludge digestor heating have been delivered to hundreds of WWTP plants in North America. Industry standard is typically painted carbon steel construction (for City of Urbana-Champaign, IL/picture 1, and for City of Laguna, CA/picture 3), although spiral sludge heat exchangers in 316L SS are not uncommon (for City of Visalia, CA/picture 2). The capacity of the small spiral sludge heaters as depicted is from 500,000 Btu/h (150kW) to 1,000,000 Btu/h (300kW).

In case of a specific inquiry for spiral sludge heat exchangers, please complete and return the Sludge Heat Exchanger Design Questionnaire in the Downloads section.