MWEA Lagoon Conference

February 21, 2013

Frankenmuth, Michigan

Show Me The Data

Effectiveness and Measurement of Chemical Use

Jeff Grames & Bill Soper

NuSystems, Inc.

Agenda

• Who is NuSystems

• What is ReNew?

• What happens in a lagoon...

• Review of case studies

• Summary

Who Is NuSystems?NuSystems is located in Bay City, Michigan serving customers throughout the Midwest. We perform our services in Wastewater Treatment, Industrial Processing, Institutional Applications and the Paper Industries. We support Environmental Management Systems (EMS), and quality programs such as ISO 14000 and Good Manufacturing Practices (GMP). We provide life science chemistry based solutions for municipal and industrial applications from air scrubbers to waste treatment processes. Our technology focus is pH neutral chemistries that work to eliminate odors, reduce COD/BOD, breakdown Suspended Solids, Fats, Oils and Grease which provides a more treatable waste for downstream processes.

3

What is ReNew?

NuSystems is the original developer of the technology.

Air

The ReNew Product Family

WaterCleaning

Food & Beverage Processor Wastewater Treatment

Odor Remediation; Industrial, Air Scrubbers, CAFOs

Hydrogen Sulfide Treatment for Sewer Systems

Cooling Tower Treatment

Silicone-based Product & Open Plant Cleaning

Municipal Lagoon Treatment

Fats, Oils, & Grease Cleaning for Sewer Systems, Lift Stations, & Drains

What happens in a lagoon..

Aerobic Respiration – The Role of Oxygen

Municipal Waste + Bacteria + Oxygen CO2 + Bacteria

Two pounds oxygen per pound BOD

Compressed air or electric aerators.

WWTP budgets are typically 30% for power.

Lagoons use less power and more time.

Oxygen Sources in Municipal Lagoons

• Biological (algae)• Mechanical (aerators, diffusers)• Atmospheric Diffusion (wind)

OxygenAlgae

Photosynthesis and Respiration

Algae + CO2 + Sunlight More Algae + Oxygen + Carbonate

• Biomass increases nutrient uptake ( P, N ).

• Bacterial respiration decreases organic waste (C)

• ReNew allows algae to produce more oxygen.

Carbon Dioxide

Oxygen

Pollutants

BacteriaAlgae

Lagoon Cost Components

Power

Treatment Chemicals

Sludge Removal

Odor Complaints / Lawsuits

Regulatory Compliance

Lagoon Bio-chemical Changes1. Treatment Program:

a. Spike dose applications of Odor Out at 5 ppm initially for immediate biological & odor improvement.

b. Continual feed of Hydro Zyme @ 3-6 ppm into influent.

2. Measurables that will quickly impacted.

Increase Dissolved Oxygen

Increase Oxidation Reduction Potential

Increase pH

Decrease turbidity

Value Proposition

• Near future (present to 6 months)– Reduced Odor– Reduced Power (if aerated)– Reduced Chemical Addition– Improved D.O.

• Long term (6 months to 1 year)– Reduced Sludge Layer– Reduced Green House Gas Emissions– Steady Improvement in Effluent Quality

Clarification of water allows algae to produce more oxygen

Case Study Data

Data and Methodology: In order to understand the affects of candidate treatment technologies we must safely collect surface and subsurface water quality data before and after treatment. There are numerous variables that can affect the data like rain, sunlight, temperature, volume flow rate changes, and fluctuations in organic load. The equipment shown here is used to collect, Dissolved Oxygen, Oxidation Reduction Potential, Total Suspended Solids, pH, Conductivity, and chlorophyll content. This information is used to better understand the performance of the untreated lagoon, and to make decisions on the viability of various treatment options.

Unmanned Research Vessle Sludge Mapping Sensor monitoring and data logging

Laboratory Pond Cloning

• 0.2 MGD Influent

• Cell 1 is heavily aerated

• Alum to cell 2 @ 40 lbs/Day

• 2 Solar mixers Cell 2

• Regulatory pressure on N and P

Cell 1 1.04 Acres 2.85 MG

Cell 33.74 Acre 11.67 MG

Cell 24 Acre 14.7 MG

200 ft

875 ft

Process Design- Oscoda Twp WW LagoonsOscoda, Michigan

Oscoda

June 28, 2011 Cell 2

Oscoda

June 28, 2011 Cell 2

Oscoda

July 13, 2011 Cell 2

Oscoda

August 1, 2011 Cell 2

Oscoda Cell Two InfluentDissolved Oxygen Before and After a 5 mg/l Odor Out Spike Dose on 9/1/11

Before Line is the average of all August dataAfter Line is the average of all September data

0.0

4.0

8.0

12.0

16.0

20.0

6:00 12:00 18:00 0:00 6:00 12:00 18:00

Time of Day

DO

, mg

/l

DO Before, mg/l

DO After, mg/l

Oscoda Cell Two EffluentDissolved Oxygen at One Foot Before and After 5 mg/l Odor Out Spike Dose on 9/1/11

Before Line is the average of all August dataAfter Line is the average of all September data

0.0

4.0

8.0

12.0

16.0

20.0

6:00 12:00 18:00 0:00 6:00 12:00 18:00

Time of Day

Av

era

ge

DO

, m

g/l

DO Before, mg/l

DO After, mg/l

Oscoda Cell Two EffluentOxidation Reduction Potential Before and After 5 mg/l Odor Out Spike Dose on 9/1/11

Before Line is the average of all August dataAfter Line is the average of all September data

-400

-300

-200

-100

0

100

200

6:00 12:00 18:00 0:00 6:00 12:00 18:00

Time of Day

OR

P,

mV

ORP Before, mV

ORP After, mV

Oxidation Reduction Potential

c

Oscoda Cell Two EffluentTurbidity at One Foot Before and After a 5 mg/l Odor Out Spike Dose 9/1/11

Before Line is the average of all August dataAfter Line is the average of all September data

0.0

5.0

10.0

15.0

20.0

25.0

30.0

6:00 12:00 18:00 0:00 6:00 12:00 18:00

Time of Day

Tu

rbid

ity

, N

TU

Turbidity Before, NTU

Turbidity After, NTU

Antwerp, Ohio Lagoon SystemN

Cell One

Cell Two

Cell Three

Monthly Power Cost with 6

Aerators$2,166

Monthly Power Cost with 1

Aerator$436

Annual Savings $20,800

Ferric Chloride Consumption

50.0

70.0

90.0

110.0

130.0

150.0

170.0

190.0

10/14/09 12/3/09 1/22/10 3/13/10 5/2/10 6/21/10 8/10/10 9/29/10 11/18/10

Time

Fe

rric

Ch

lori

de

Co

nc

en

tra

tio

n, m

g/l

Before ReNew

158 mg/l $30,000/yr

After ReNew

91 mg/l $17,000/yr

Annual Savings = $13,000

Total Cost to Operate – Treatment ChemicalsWinamac, Indiana

ReNew Start

Plus electrical savings for turning off aerators.

Village of – NuSystems Lagoon Program Results

Primary issues regarding the wastewater lagoons:

• Sludge: Sludge removal cost for cells 1&2 was approximately $300,000.00 plus. The NuSystems Lagoon Treatment Program reduced the sludge 25% in the first year. This is a reduction of approximately $75,000.00 in removal costs.

• H2O/Odor: Community odor complaints averaged five or six per year. For the years ending 2011 and 2012, there were 0 complaints.

• Aeration costs: Two aerators were in operation with a cost of $1,500.00 per month, excluding man hours for maintenance and repair. Three months after the beginning of the NuSystems technology implementation, the aerators were decommissioned and the dissolved oxygen numbers increased.

• Parameters: 2009 2012BOD 50 11TSS 70 26DO 07.9 14Amm 02.18 01.00Phos 03.84 01.23

Village of – NuSystems Lagoon Program Results

Primary issues regarding the wastewater lagoons:

• Sludge: Sludge removal for the Village of was to be 25% greater than average due to high metal content within the sludge. The sludge blanket has been reduced 10% annually since 2009 with the NuSystems Lagoon technology.

• Odor Control: Before the NuSystems technology was implemented, was experiencing extensive odor issues on cell #1 and the main lift station in town. After a week of implementation, all odors were gone. There was also no odor at turn over time in the spring.

• Parameters: Before NuSystems After NuSystemsBOD 02.4 02.3DO 09.25 12.4Amm 06.7 00.69Phos 04.9 01.54Fecal Coliform 76 10

Summary

• Hard data in Lagoon enhancement has been scarce

• Claims for performance improvements have been many

• Operators have been justifiably skeptical

• Data gathering is expensive and necessarily site specific

• Best data sets combine laboratory, controlled field and actual operating data from a variety of Lagoon operations

• Decision to accept an enhancement program must be based on scientific data, field experience and value to the community