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Southeast Energy/Water Interdependence Exercise

Basic Drinking Water TreatmentEPA-R4 Drinking Water Section

April 25, 2007

Where do we get our Drinking Water?

Rivers & Streams

Lakes & Reservoirs

Ground Water Well

GROUND WATER SYSTEM

WellNo Treatment

Well With Chlorinator

Aeration

Pump Station Sedimentation

Flocculation

Rapid Mix

Chemical Addition

FiltersClear Well/Detention

DisinfectantAddition

Source

Membrane Filtration

Components of a Typical SW Public Water System

SourceTreatmentStorageDistribution

Transmission

Filling the Reservoirs

Drawing Down the Reservoirs

LARGE SURFACE WATER SYSTEM

Pump Station Sedimentation

Flocculation

Rapid Mix

Chemical Addition

FiltersClear Well/Detention

DisinfectantAddition

Source

Elevated Storage

Elevated Storage

Storage

Plant & Clearwell

Booster Station

Diesel Fire Pumps

The Drinking Water Cycle

Water System

Distribution System

Sewer Lines

Wastewater Plant

Discharge

Homes or Businesses

Septic System

Infiltration

Source(aquifer, lake,

etc.)

Southeast Energy/Water Interdependence Exercise

Basic Wastewater TreatmentEPA-R4 Drinking Water Section

April 25, 2007

LOW TECH WASTEWATER TREATMENT

Low Tech & Low Energy Wastewater Disposal System

LAGOONS

AERATED LAGOON

Basic Activated Sludge

Aeration Basin

PreliminaryTreatment

PrimaryClarifier

PrimaryClarifier

SecondaryClarifier

SecondaryClarifier

Chlorine ContactChamber

Outfall 001

Secondary TreatmentPrimaryTreatment

Disinfection(Activated Sludge)

Oxidation Ditch Process with Mechanical Aeration

Mechanical Aerator

Inlet point of aeration basin and gate valves showing step feed

option

Disc-type Aeration System

Foam Level?

Variable speed blowers for Aeration supply

Flow Diagram of Adv. Treatment

Unit Processes

ScreensGrit

PrimaryClarifiers

Attached/Suspended

Growth

SecondaryClarifiers

SandFilters/

Polishing

ChlorineUV

Ozone

PreliminaryTreatment

PrimaryTreatment

SecondaryTreatment

TertiaryTreatment

Disinfection/Post Aeration

Biological ProcessPhysical Processes

Physical/ChemicalProcesses

LAND APPLICATION

Questions?

Tom Plouff, P.E.USEPA Region 4, Atlanta404.562.9476plouff.tom@epa.gov