general lake presentation

8/3/2019 General Lake Presentation

1/40

CLEAN-FLO

I n t e r n a t i o n a l

Restoring Lakes, Ponds, Rivers,Reservoirs and Wastewater

Lagoons Worldwide


2/40

2007 Lake Savers 2

Why Care About Restoring Water Bodies?

Which lake would you rather ownproperty on?

Swim in?

Invite your friends to?


3/40

2007 Lake Savers 3

Agenda

About CLEAN-FLO International

Understanding Restoration Dynamics

Limitations of Conventional TreatmentApproaches

The CLEAN-FLO System

Project Examples Newtown Creek Project

Questions and Discussion


4/40

2007 Lake Savers 4

About CLEAN-FLO

To dramatically improve the health

of water bodies.

Mission:


5/40

2007 Lake Savers 5

About CLEAN-FLO

The CLEAN-FLO processesbiodegrade bottom organic muck,

reduce weed and algal problems,eliminate odor, improve waterquality and provide healthy waterfor fish growth, health & increasednumbers.

Process:


6/40

2007 Lake Savers 6

About CLEAN-FLO

Recreational lake and ponds

Drinking water reservoirs

Municipal & industrial wastewater

Hog, dairy and chicken farmsAquaculture

Swimming beaches

Polluted rivers

Irrigation ponds

Dead end salt water canals

Used in:


7/40 2007 Lake Savers 7

Whats the Big Deal AboutPhosphorus?

Most times phosphorus is the limiting

nutrient that controls plant and algaegrowth.

Excess phosphorus means excess algae

and weeds. Excess weeds and algae overwhelm a water

bodys natural self-cleaning/renewal

process.

Water quality diminishes and the water bodybegins to literally die from overfeeding.



The Reality

Fact:

Most inland water bodies in developed areas arereceiving more phosphorus than they can handle tostay in balance.

As a result, most water bodies are in a state ofaccelerated Eutrophication a fancy word for anover-fed, dying lake.



Sources of Excess Phosphorus

1 Pound of Phosphorus can produce10,000 pounds of wet weeds and algae!
http://www.defiancecohealth.org/sewage.jpghttp://www.scsc.k12.ar.us/2005BlanchardSprings/images/Arnold%20Pictures/Mammoth%20Springs%2005/Canada%20Geese%201.JPG



Impact: Accelerated Eutrophication

2. Dead algae and

weeds fall to thebottom

3. Decompositiondepletes lake of

oxygen

Decaying weeds and algae

Anaerobic sludge

Lake Bottom

4. Nutrients releasedback into the water

5. New algae bloomand weed growth

1. Nutrients Flow intoLake/Pond Leadingto ExcessiveWeed/Algae Growth



Traditional Management Approaches In Theory

Visible

Problems:

Excessive Weed Growth

Algae Blooms

Accumulation ofMuck/Loss of Depth

Odor

Root

Causes:

Externalnutrient loading

Internal nutrientloading

Oxygen Depletion

Treat thesymptomswithChemicals,

harvesting,drawdown,etc.

WatershedManagement

Dredging



Traditional Management Approaches In Practice

Watershed Management programs are extremelydifficult to implement and enforce withoutgovernment mandate/ordinances.

Dredging is typically too cost prohibitive anddifficult to obtain required permits.

Chemicals and harvesting become the de-factomanagement options to manage the symptoms ofthe problem.

These costs increase over time as root cause isnever adequately addressed.

Beaches are closed because coliform levelscannot be reduced.


13/40 2007 CLEAN-FLO

Lakes Need To Breathe To Be Healthy!!!13

CLEAN-FLO Management Approach

Restore/enhance the natural, self-cleaningmechanism of the water body with the

CLEAN-FLO Process.

Address Internal Loading

Reduce muck

Eliminate odor and gases

Limit external nutrient loading where

possible. Use chemicals/harvesting as a

supplemental tool if necessary.




The natural processes within a body ofwater begin to breakdown when they arelimited or eliminated by low oxygen levels.

High dissolved oxygen levels at the bottomprevent the release of Phosphorous fromthe sediment (internal loading).

Aerobic organisms are more efficient atdigesting organic material than anaerobicorganisms.

Aerobic organisms assimilate nutrients and

take them out of the system through thefood chain.

Dissolved Oxygen The Key toHealthy Water Bodies




The Real Target for Lake Restoration

Rapid Accumulation ofOrganic Muck Caused by

Oxygen Depletion Toxic gases Hydrogen

sulfide, Ammonia, Methane. Disease causing bacteria

fecal coliform, E. coli

Other undesirable organisms swimmers itch parasite,leeches.



CLEAN-FLO: An Exercise Program for Lakes!16

The CLEAN-FLO Process

Improve the water bodys naturalSelf-Cleaning Capability:

Continuous Laminar Flow InversionProcess oxygenates the entire body ofwater significantly reducing nutrient

availability, odor and disease causingbacteria.

Application of naturally occurring

bacteria and enzymes accelerates theaerobic breakdown of organic material(decaying plants and muck).



CLEAN-FLO: Exercise Program for Lakes!17


O2

Aerobic benthic bacteria

break down organics

Nutrients removed

through the food chain

Phosphorus stays

locked in sediment

NOxygenated surfacewater moves to thebottom.

CO2Toxic Gasesremoved

H2S





The CLEAN-FLO approach is NOTa quick-fix.

A combination of strategies may berequired, but improving a water bodysability to breathe is THE KEYto improvingits health.

Every body of water is unique. The mainingredient to success is understandingthe conditions involved and designing the

system to achieve success.



Collins LakeScotia, New York

About the Lake

60 acre lake with public beach.

Beach closed for two years due to fecal bacteria issue.

Milfoil and pondweed growth out of control.

Watershed management strategies and herbicide treatment werenot producing adequate results.

Management Program

One-time herbicide treatment formilfoil and pondweed (2006).

CLEAN-FLO System installed inApril of 2006.

CLEAN-FLO bacteria and enzymetreatment applied in July of 2006.

Results

Beach opened in August of 2006,remained open all of 2007.

No significant re-growth of milfoil orpondweed.

Dissolved oxygen maintainedthroughout water column all winterdespite shutting down the system for

3 months.

Noticeable reduction in dead plantmaterial and muck in 2007.


20/40 2007 Lake Savers20

Collins Lake Before in May 2006



Collins Lake Before in May 2006



Collins Lake After in July 2008

Will L k



Willow LakeKalamazoo, Michigan

About the Lake

7 Acre lake/pond.

Completely over-run with milfoil, filamentous algae, lily pads, andcoontail

Management Program

CLEAN-FLO System installed inJune of 2007.

One-time herbicide treatment formilfoil.

Harvesting program for lilypads.

Bacteria and Enzyme treatmentapplied in July of 2007.

Results

Filamentous algae problemeliminated.

No significant re-growth of milfoil.

Coontail significantly reduced. Lily pads did grow back after

harvesting, however, we are startingto see tubers pop to the surface.

Clear signs of breakdown of organics

in the lake.




Willow Lake Before Pictures June 18, 2007


27/40

2007 CLEAN-FLO


Willow Lake After Pictures June 23, 2007(5 days after installation of the Clean-Flo System)


28/40

2007 CLEAN-FLO


Willow Lake After Pictures June 23, 2007(5 days after installation of the Clean-Flo System)

Willow Lake After Pictures July 6 2007


29/40

2007 CLEAN-FLO


Willow Lake After Pictures July 6, 2007(Herbicide treatment applied on June 27th))

Willow Lake After Pictures July 14 2007


30/40

2007 CLEAN-FLO


Willow Lake After Pictures July 14, 2007(Herbicide treatment applied on June 27th)


31/40

2007 CLEAN-FLO


Willow Lake After Pictures July 14, 2007

Will L k B tt Pi t J l 15 2007


32/40

2007 CLEAN-FLO


Willow Lake Bottom Pictures July 15, 2007(Bottom area not yet impacted by Clean-Flo System)

Willow Lake Bottom Pictures July 15 2007


33/40

2007 CLEAN-FLO


Willow Lake Bottom Pictures July 15, 2007(Bottom area near Diffusers)

Willow Lake Secchi Disk Readings


34/40

2007 CLEAN-FLO


Willow Lake Secchi Disk Readings(An indication of Water Clarity)

April 23, 2007 4+ feet Secchi disk hit bottom,still visible (did not knowlocation of deep hole)

May 15, 2007 3 feet Not clear to bottom maximum depth

June 18, 2007 < 2 feet Lake choked with weeds

and algae

July 6, 2007 6 feet Found the deep hole inthe lake.

July 15, 2007 7+ feet Secchi disk hit bottom,still visible

Date Depth Reading Comments

Cherry Creek Unimproved Area Across the Street from Willow Lake


35/40

2007 CLEAN-FLO


Cherry Creek Unimproved Area Across the Street from Willow LakeJuly 15, 2007


36/40

2007 CLEAN-FLO


Hammonton Lake Project Overview

Background On Hammonton Lake:

65 acre lake located in Hammonton, NJ.

Maximum depth of 12 feet; average depth of 6 feet

Swimming beach was closed for all but 13 days in 2006 dueto high coliform levels (>300/100 ml). Levels alwaysincreased significantly after rain events

CLEAN-FLO designed a program for the entire lake in 2005but was asked to address the beach area first

System installation completed on July 19, 2007

Coliform levels on the 19th were over 500

Daily water sampling was conducted by Hammontonpersonnel starting on July 23rd

Coliform levels were below acceptable limits for 25 of the

first 30 days of operation


37/40

2007 CLEAN-FLO


Hammonton Lake Water Sampling

July 23 180 First test

July 31 1,621 1.5 rain on 7/30

Aug 2 356

Aug 3 185

Aug 4 96

Aug 8 56

Aug 15 60

Aug 19 58 2 rain event in pm

Aug 21 1,400Aug 24 200

Date Coliform Comments


38/40

2007 Lake Savers 38

Lake Powai, India

About the Lake

500+ acre lake in India.

Hydrilla and Water Hyacinth had taken over the lake. Lake heavily polluted from watershed

Management Program CLEAN-FLO System installed

with bacteria and enzymetreatment.

Harvesting program initiated toreduce Water Hyacinth.

Results Nutrient levels in the lake reduced

by 90% in the first year.

Hydrilla and Water Hyacinth

reduced to non-nuisance levels. Significant improvement in all

water quality indicators.


39/40

2007 Lake Savers 39

Lake Powai, India Results

Clean-Flo system Installed


40/40

CLEAN-FLO system Installed

Lake Powai, India Results

general lake presentation

Documents