treatment.ppt

Waste Water TreatmentWaste Water Treatment

Gas Detection OpportunitiesGas Detection Opportunities

WWTP Gas DetectionWWTP Gas Detection

• Simple WWTP Overview• Pumping and Lift Stations• Typical WWTP Gas Detector Layout

– Headworks– Influent Processing– Sludge Processing– Clarification– Digestion– Final Disinfection

• Equipment Selection• Current large installations• Recent Successes• Where to begin – How to win

Waste Treatment OverviewWaste Treatment Overview

A simple view of a typical Waste Water Processing System

Pumping and Lift StationsPumping and Lift Stations

Moving waste to the plant for processing

• Wet Well or Dry Well may be considered a confined space

• Combustible Gas• Oxygen Depletion• Hydrogen Sulfide• Sensors must be mounted

above high water mark

Typical Wastewater Treatment PlantTypical Wastewater Treatment Plant

EqualizationBasin

PrimaryClarifier

Aerobic / AnaerobicSludge Digester

Gravity SludgeThickener

SecondaryClarifier

NitrificationBasin

Aeration Basin

Plant Inlet(Influent)

FinalFiltration

Disinfection

Plant Effluent

Return Activated Sludge (RAS)

Waste Activated Sludge (WAS)

SludgeDewatering

SludgeDisposal

Concentrate

PreliminaryTreatment

Stage

LEGENDCombustible

Hydrogen Sulfide (H2S)

Oxygen

Other Toxic

The HeadworksThe Headworks

Where it all begins• Large debris removal• Rakes and Bar Screens

Gas Detection Required• Combustible Gas Cat-Bead

– Combustible Liquids

– Heavy Hydrocarbons

• Combustible Gas Infrared– Methane or Light Hydrocarbons

• Oxygen Depletion• Hydrogen Sulfide

Influent ScreeningInfluent Screening

• Bar Screen Rooms• Sedimentation Tanks• Grit Chambers• Solids Transport and

Loading

Gas Detection Required• Combustible Gas Cat-Bead

– Combustible Liquids

– Heavy Hydrocarbons

• Combustible Gas Infrared– Methane or Light Hydrocarbons

• Oxygen Depletion• Hydrogen Sulfide

Sludge ProcessingSludge Processing

• Sludge Storage Tanks• Gravity Thickeners• Pumping Systems• Sludge Dewatering• Sludge Incineration

Gas Detection Required• Combustible Gas Infrared

– Methane or Light Hydrocarbons

• Oxygen Depletion• Hydrogen Sulfide• Carbon Monoxide

ClarificationClarification

Secondary Treatment

Bio-Solids settling and removal

Gas Detection Required• Combustible Gas Infrared

– Methane or Light Hydrocarbons

• Hydrogen Sulfide (Odor Control)

DigestionDigestion

Aerobic Digestion (With Air)

Anaerobic Digestion (Without Air)

Combustible Gas IR (Methane)Used for Co-Generation

Sold to Gas Company

Hydrogen Sulfide (Odor Control)

Final DisinfectionFinal Disinfection

Final point before discharge into local River, Lake or Creek.

Gas Detection Required• Chlorine• Ammonia• Sulfur Dioxide

Equipment SelectionEquipment Selection

• Sierra Monitor New IT series positioned for the future

• IT series modules meet both NEMA 7 and NEMA 4 rating

• IT series modules meet both Analog 4-20 mA and Digital protocol requirements

• Use of Rainshields allow for remote calibration

• Promote Infrared durability and cost of ownership

Current large installationsCurrent large installations

Massachusetts Water Resource Authority Deer Island Plant

Cleveland, Ohio

Easterly, Southerly, Westerly Plants

140 + Sensors

City of New York DEP

Coney Island Plant 70 + Sensors

Wards Island Plant 120 + Sensors

120 + Sensors

Hyperion Plant

100 + Sensors

Recent SuccessesRecent Successes

• City of New York DEP (Wards Island Plant)– A&E = Malcolm Pirnie– Contractor = P.J.S. Electrical– 120 + Points of Combustible & H2S

• City of Cleveland, Ohio (Easterly, Southerly, Westerly)– A&E = Malcolm Pirnie (PA-3)– Contractor = Bay Mechanical & Electrical– 80 + points Combustible & H2S– A&E = Montgomery, Watson, Harza (HEI-1)– Contractor = Shook Northern Construction– 50 + Points of Combustibles

Where to beginWhere to begin

• Architect & Engineering firms– Find Projects– Get into specs – “locked-in” or “equal”– A&E’s must account for their time so best access:

• Lunch & Learns considered continuing education and we do them often. Schedule at least one per quarter.

• Specific project meetings

• Investment– A&E Calls are not instant revenue generation they are investments in future projects– Involve RSM’s in A&E calls

Where to winWhere to win

• Relationships with local contractors a must– Monitor local municipal project awards– Follow the chain of funds– Some Electrical & Mechanical contractors will

consistently win municipal bids • Find them – get to know them – visit them often

– Municipal work is LOW BID• We win by: Installation efficiency, aggressive pricing

when necessary– Sierra Monitor’s submittals are the best available – use

examples to create high confidence with new contractors

WWT Application ReviewWWT Application Review

• Learn the application

• Teach the A&E’s

• Use your Regional Manager

• Know the contractors

• Quote SMC IT series and Sentry systems

• Get aggressive to win every project

Sense the future paycheck