May 2018 Tour of Greater Lawrence Sanitary District (GLSD) Organics to Energy Project
The Wastewater Advisory Committee and friends tour the Greater Lawrence Sanitary District Co-Digestion Project.
Food slurry is loaded into the tank, GLSD
Digesters at GLSD are squat and round--they have four.
All four can take food waste slurry along with sludge.
Gas from the digesters is cleaned of Siloxane and Hydrogen Sulfide before being burned.
The tanks here contain wood chips treated with iron oxide and carbon to remove each of these compounds.
GLSD Capital Projects Manager Richard Weare and
Advisory Board Chair Lou Taverna check out the intake for the food slurry tank.
GLSD Manager Weare shows off the new engines at the combined heat and power plant.
GLSD could produce 100% of its own energy at 92,000 gallons/day of food waste slurry.
WAC members inspect the engines.
May 2017, Tour of MWRA's Deer Island Treatment Plant
Checking out the new valves at the Winthrop Terminal Pump Station
North Main Pump Station: Checking out work on the valve replacement--looking down four stories!
Mind the gap! The disconnected pipe awaiting a new valve.
Boston from the top of the digesters
Windmill and Boston Harbor Islands (video)
View of the plant from the digesters
A falcon on a digester
Trickling filter in action
The bubble aerator
The sludge press
Updated May 5, 2015