Biosolids Management at South East Water

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BIOSOLIDS MANAGEMENT AT SOUTH EAST WATER

Aravind Surapaneni

22 February 2012

OVERVIEW

• South East Water • Biosolids Management • Biosolids HACCP • Challenges

SOUTH EAST WATER

• Commenced operation in 1995

• Provides water, sewerage and recycled water services

in the south-east region of Melbourne
• One of 3 water retailers in the Melbourne metropolitan area

• 1.5 million people served in a 3640 square kilometre area

• 8 STPs

SOUTH EAST WATER PRODUCTS

• Drinking Water

• Recycled Water

• Biosolids

• Effluent for environmental discharge • Sewage (as an ingredient of recycled water) • IWMS products (eg. Sewer mining, Storm water)

SOUTH EAST WATER PRODUCT QUALITY OBJECTIVES

1.That our products be safe, sustainable and satisfy

customer need.

2. That our products are backed by quality systems

that emphasise optimal performance and

accountability.

SOUTH EAST WATER QUALITY SYSTEM
BUSINESS WIDE

ISO9000 ISO14000 AS4801

HACCP & ISO22000
PRODUCTS

Drinking Water – IWMS (alternative sources)
Raw Sewage – Discharge Effluent – Recycled Water – Biosolids

South East Water Sewage Treatment Plants

Eastern Treatment
Plant

Port Phillip
Bay

Pakenham

Longwarry

Blind Bight
Koo Wee Rup

Lang Lang
Mt Martha

Boneo

Western Port

Somers

Melbourne Water Sewage Treatment Plant

South East Water Sewage Treatment Plant

2010-11 ESC REPORTING DATA (tDS)

South East Water STP Sludge Produced
Sludge Stored

5150 2367

2198 3608 225

Biosolids Used

Boneo
529

225

665 433 29

789 835

349 194 0

Somers

Mt Martha Pakenham Blind Bight Koo Wee Rup Longwarry Lang Lang

TOTAL

1954
14355
2163

SOUTH EAST WATER‟S BIOSOLIDS ANNUAL

PERCENTAGE USAGE

BONEO STP – 8 ML/DAY PLANT

BONEO STP

BONEO STP – SLUDGE LAGOON 2

12
6 March 2012

BONEO STP – BELT PRESS

13
6 March 2012

BONEO STP – BELT PRESS

14
6 March 2012

BONEO STP – SOLAR DRYERS

15
6 March 2012

BONEO STP – SOLAR DRYERS

16
6 March 2012

BONEO STP – SOLAR DRYER SLUDGE

17
6 March 2012

BONEO STP SOLAR DRYER SLUDGE CHARACTERISATION

Parameter
27 April 2011 (n=3)

Nitrogen (%)
4.6

1.9 860 23
Phosphorus (%) Available K (mg/kg) Total Organic Carbon (%)

C:N ratio
5.5

Treatment Grade

Contaminant Grade
C2

So what other product is competing with biosolids ?

Which is Which ?

Poultry Litter

Biosolids

Broiler (meat birds) litter

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