Wastewater Advisory Committee to the MWRA
WAC ON TOUR

 

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May 2018 Greater Lawrence Sanitary District Organics to Energy Project Tour

May 2017, Deer Island Treatment Plant Tour

May 2016, Ward Street Headworks Tour

May 2015, Clinton Wastewater Treatment Plant Tour

May 2014, Cambridge Constructed Wetland Tour

May 2013 Pellet Plant Tour

 


May 2018 Tour of Greater Lawrence Sanitary District (GLSD) Organics to Energy Project

 

GLSD photo 1

The Wastewater Advisory Committee and friends tour the Greater Lawrence Sanitary District Co-Digestion Project.

 

GLSD Photo 2

Food slurry is loaded into the tank, GLSD

 

GLSD photo 3

Digesters at GLSD are squat and round--they have four.
All four can take food waste slurry along with sludge.

 

GLSD Phtoto 4

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 Photo 5

GLSD Capital Projects Manager Richard Weare and
Advisory Board Chair Lou Taverna check out the intake for the food slurry tank.

 

GLSD photo 6

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.

 

GLSD Phtoto 7

WAC members inspect the engines.

 

 

May 2017, Tour of MWRA's Deer Island Treatment Plant

 

wac tour deer island may 2017

 

valves at N Main PS

Checking out the new valves at the Winthrop Terminal Pump Station

 

 

looking down four stories

North Main Pump Station: Checking out work on the valve replacement--looking down four stories!

 

 

mind the gap

Mind the gap! The disconnected pipe awaiting a new valve.

 

 

Boston from digester

Boston from the top of the digesters

 

 

Windmill and Boston Harbor Islands (video)

 

 

plant from digester

View of the plant from the digesters


falcon on digester

A falcon on a digester

 

 

May 2016, Tour of MWRA's Ward Street Headworks, Boston

 WAC tours the Ward St. Headworks, Boston.
WAC tours the MWRA's Ward St. Headworks
The Screens - MWRA Ward St. Headworks
The Screens
The Grit Chamber - MWRA Ward St. Headworks
The Grit Chamber
The Outfall - Ward St. Headworks
The Outfall

 

May 2015, Tour of MWRA's Wastewater Treatment Plant, Clinton

WAC tours the MWRA Clinton Wastewater Treatment Plant
WAC views the clarifiers at Clinton

Trickling filter in action

 

The bubble aerator

 

 

The sludge press

 

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May 2014, Cambridge Constructed Wetland Tour

WAC tours the Cambridge Constructed Wetland, May 2014
WAC tours the Cambridge Constructed Wetland, May 2014
Catherine Woodbury, Cambridge engineering project coordinator,and Duke Bitsko, director of interdisciplinary design at Bioengineering Group explain the functions of the wetland.
Catherine Woodbury, Cambridge engineering project coordinator,and Duke Bitsko, director of interdisciplinary design at Bioengineering Group explain the functions of the wetland.
Wayne Chouinard, town engineer of Arlington and WAC member, explores the wetland.
Wayne Chouinard, town engineer of Arlington and WAC member, explores the wetland.

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May 3, 2013, Pellet Plant Tour with Carl Pawlowski, MWRA

On May 3, 2013, WAC toured MWRA's Residuals to Fertilizer Plant in Quincy, Massachusetts. The "pellet plant" manufactures Bay State Fertilizer from the residual solids from wastewater.
 
MWRA - Harbor view from second floor conference room
Harbor view from the second floor conference room
Carl Pawlowski,
MWRA Residuals Manager Carl Pawlowski leads the tour
MWRA - Digested Sludge Comes In
Digested sludge comes in
MWRA - Residuals in the Water Returned to Deer Island
Residual water returned to Deer Island
MWRA - Heating for Dryer at Sludge to Fertilizer Plant
Heating for dryer
MWRA - Red dryers spinning
Red dryers spinning (QuickTime video)
MWRA - The NEFCO stack
The NEFCO stack
Surplus augers, pipes at harbor side
Surplus augers, pipes at harbor side
MWRA - WAC on tour
WAC on tour
MWRA - Falcon Box
A wooden box, center top, was put there to give some resident Peregrine falcons a place to nest. They haven't returned this year.

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Updated May 5, 2015