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Stickney Water Reclamation Plant

Stickney population / area served

2.38 million people / 260 square miles

Site size

560 acres

Design capacity

1,200 million US gallons/day (4.6 million m<sup>3</sup>/day)

Average outflow

750 million US gallons/day (2.8 million m<sup>3</sup>/day)

Parameters (in mg/L)

DO

9.3

BOD<sub>5</sub>

5

TS

1225

SS

8

TKN

2.70

NH<sub>3</sub>-N

0.78

Hardness

236 (as CaCO<sub>3</sub>)

New biosolids plant

Input

600 wet tonnes/day

Output

150 dry tonnes/day

Heat drying process time

45 minutes

Product

EQ/Class A pellets

Stickney service area grand total cost

$1,024,361,000

Plant originally commissioned

1930 (western section); 1939 (southwest)

Fine screen replacement

January 2006

Centrifuge work completed

March 2006

Computer control centre completed

April 2006

Pumping station sluice gate improvement completed

May 2006

Plant ventilation improvement completed

December 2006

Sludge project management and design contract awarded

August 2006

Detailed watershed plan studies launched

October 2006

Digester rehabilitation and cleaning finished

November 2006

Expected project award dates

Service tunnel/connecting tunnel-phase II

February 2007

Final clarifier collectors replacement

April 2007

Additional sludge concentration facilities

April 2007

HVAC improvements

July 2007

Service tunnel-rehabilitation phase III

September 2007

Southwest side grit tank improvements

December 2007

New preliminary treatment

March 2008

Service tunnel rehabilitation-phase IV

June 2008

Westside circular primary settling tanks

April 2009

Westside grit handling improvements

April 2009

Plant owner/operator

Metropolitan Water Reclamation District of Chicago

Biosolids recycling

Metropolitan Biosolids Management (Biosolids Management and Veolia Water North America Operating Services JVC)

Sludge project management and design services

Earth Tech

Watershed plan studies

Little Calumet

Camp, Dresser & McKee

Calumet Sag Channel

CH2M Hill

Upper Salt Creek

MWH Americas
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