Lake Presentation

8/7/2019 Lake Presentation

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Lake Aeration Systems

by PNW Inc. & ADS

For more information, visit us at http://www.paradisenw.com


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OUR LAKE NAINITAL

Highly eutrophic/ polluted nutrient rich water body withblooms of algae for major part of the year

The transparency in the lake is very poor

Hypolimnion is devoid of oxygen

Concentrations of ammonia, hydrogen sulfide andmethane very high

Blue green algae predominates in the lake

Look bottom becomes anoxic during the time ofoverturn

Lake experiences mass mortality of fishes especiallyduring winters

The water of the lake is not suitable for drinkingpurpose


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Solution

The aeration of the lake is the only remedy

to control the pollution and thus restore thelake ecosystem


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Benefits of Aeration

Increases transparency of lake Decreases the concentrations of toxic gases like

carbon dioxide. Ammonia, hydrogen sulphide andmethane

Decreases the production of algae thus increasing thetransparency of lake water

Replaces the undesirable flora and fauna and leads tothe development of desirable life forms in the water.

Creates conditions suitable for the growth and

breeding of environment friendly fish species likemahseer

Increases the concentrations of dissolved Oxygen inthe lake.

Restores the lake ecosystem completely.


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Division of Basins & Placement of Discs


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Compressor House


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COMPRESSOR


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MANIFOLDS


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Aeration DiscAeration DiscSurgical die cut air

releases in U/vresistant tubing.

Internal pressure

drop>1 PSI to

overcome

undulating bottom.

Each air releaseemits 5 micro

bubbles per second.

Thats over 1 Billion

Bubbles Per day

Coated aircraft cablehas a nominal

strength of 1,700

pounds

Durablestainless

steel welded

frame is

light weight

and

corrosion

resistant inany water

Reusable

compressiontube connector

comes with

plastic gripper

ring rated at

220 PSI

The tiny bubble size (less than 1/8" diameter)


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INSTALLATION OF DISK IN LAKE


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Non Aerated Pond Kinetics

In absence of oxygen:

Fish are limited to the Epilimnion

layer.

Anaerobic bacteria slowly digest

sludge.

Nutrients stay in the water column.

Results: Poor water quality

High BOD, algae, odours, unhealthy sludge,

dead fish, poor water clarity


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What Bottom Oxygenation Does

IN THE PRESENCE OF OXYGEN:

Organic waste from mans activities

becomes food.

Bacteria, Aquatic Insects Snails,

Worms, and Fish convert unwantedwaste.

Water Quality dramatically improves:

BOD reduction, Odor elimination,

reduced algae, better water clarity,

nutrients reduction, thermocline

elimination.

The living cycle is created through

bottom oxygenation which is the vital

link for sludge digestion and its build

up.


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Natures Scavengers

By bringing oxygen to the bottom,A

DS

finebubble aeration systems allow new aerobic

scavengers to feed on the sludge, eliminating

it the natural way

These scavengers are eaten by bigger

predators and ultimately predated on by man,

completing the ecosystem cycle.

When oxygen exists along the bottom of a lake or reservoir, important biota,all feeders, can live, eat and eliminate the organic sludge the natural way.


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Introducing oxygen

Recognized leader in aeration systems from small

lakes to giant reservoirs for over fifteen years.

Air is introduced artificially to die-cut, bottom laid

tubing using large ADS Disk module.

Fine bubbles emitted from the tubing form a curtain

of gently rising air which will pump the dead water

to the surface without lifting sediment. This is called

LAMINAR FLOW.

Highest pumping rate in the industry (22MGD @ 15

of water depth per LTC diffuser).

This circulation of oxygenated water virtually

eliminates odors & anaerobic conditions. It promotes

growth of bacteria, snails, worms and fish for the

FOOD CHAIN.


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Outstanding results

Typical observed water testing shows:

Increased dissolved oxygen concentrations

throughout the entire water column.

Increased availability of habitat for all fish

species (warm and cold).

pH is homogenous and stabilized.

Temperatures are homogenous throughout

the entire water column.

Illustration of nutrient oxidation by ADS fine bubble aeration

(from left to right, highly oxidized, slightly oxidized, initial sample)


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Worldwide Famous ProjectsBaima Canal, ChinaWillow Creek, USA BearCreek Reservoir, USA

Lake Nainital, India Established in 1965 (formerly Hinde Engineering Company).

Recognized leader in aeration systems from small lakes to giant reservoirs forover fifteen years.

Successful design and application of over one thousand different domestic andwastewater systems as well as reservoirs, lakes, aquaculture and marina icemelting systems.

Research and Development department devoted to bringing state-of-the-arttechnology into production for you.

Devoted exclusively to the fine bubble aeration industry, we have no otherconflicting business interests.

ADS employees have a combined total of over seventy-five years experiencein the fine bubble market place.


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Lake Presentation

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