NSWCCD Ballast Water Treatment Survey

1

Date: _____________

General Information

Manufacture Environmental Technologies, Inc.

Product/Model Name ETI BWTS

Contact Information

(Name, Phone, e-mail) Thomas L. Maddox, 800-940-8161, tlm@tlmcos.com

Are you the manufacturer or 

distributor? Manufacturer

Product Availability 2012 to 2015 est

Certification status, include 

date certified or anticipated.

(IMO: G-8, G-9 [Basic and Final], 

Other) None

Vessels using the system

(Please provide Ship Name and/or 

location of land base test) None

Technology Description

Technology used, please 

identify for all stages, if 

applicable. Filtration from existing Ships 

system(s)

Ozone

Ultrasound

Treatment location Discharge piping during de-ballasting

Technology Description 

(Brief explanation of how the 

system operates) The BWTS combines O3 and sonic energy to treat upon discharge.

Effluent quality achieved 

(If possible, please provide any 

testing data showing effectiveness 

during shore or shipboard testing.) Please see the “Phase V 2008 Field Testing” Attachment

Does the system use 

consumables? 

(If yes, please identify the 

consumables)

No. The BWTS use compressed air to make O3, which is injected into 

the sonic reactor-piping module.

Installation/Operational Information
NSWCCD Ballast Water Treatment Survey

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Installation/Operational Information

Is there any specific piping

or tank configurations 

required for 

installation/operation?

(Please explain)

There would need to be a loop at the location in the ship where the

ballast water discharge piping exits the ship.

Does the system require the 

ballast water to be mixed 

within the tanks? No. The BWTS is operated upon discharge only.

Is there a minimum or 

maximum amount of 

contact/residence time 

required?

(Please explain)

We can treat a nominal 1500 m3/hr/6600 GPM, per ballast pump, in a 

manifold system consisting 20 feet of 12 inch dia pipe upon discharge.

Does the system incorporate

any automatic or manual 

monitoring of the effluent to 

ensure correct operation? 

(Brief explanation of requirements) Yes. “BallastWatch” Please see the BallastWatch Attachment

Does the system increase the 

corrosion rate of the ballast 

tanks, piping, or valves? 

(Steel, copper nickel, bronze 

materials)

No. The ballast water exits the ship through the SS manifold as

mentioned above. 

Physical Characteristics (Size, Arrangement, Capacity, etc.)

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Flow Capacity

(gpm or m

3

/hr)

The ETI BWTS can be 

sized from 1000 GPM 2K, 3K 4Kk 5K GPM

The largest single system is 

6,000 GPM

Size (L x W x H) 

(in or mm) 20’ L X 8’ H X 8’ W

Please see the 

“Attributes” Attachment 

for more details.

Please see the “Drwg” 

Attachments for more details.

Dry Weight

(lbs or kg) 10,000 #s 12,000 #s 14,000 #s

Wet Weight

(lbs or kg) Plus 1,200 # Same same
NSWCCD Ballast Water Treatment Survey

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Physical Characteristics (Size, Arrangement, Capacity, etc.)

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Stowage space 

required for 

consumables, 

spares, repair 

parts, etc for 6 

months 

(L x W x H)

(in or mm)

There are no 

consumables, nor any 

moving parts, thus this 

space requirement is 

very minimal. Same Same

Dry weight for 

spares and/or 

consumables for 6 

months

(lbs or kg) Same Same Same

Is the system 

provided as a 

modular unit?

Yes. The BWTS can 

also be broken down 

into the following 

components and piped 

together: Oxygen Gen 

set, O3 Gen set sonic 

Gen sets Sonic reactors 

piping manifold Same Same

Can you provide 

dimensional/

system drawings?

Yes. Please see the 

“Drwg” Attachments Same Same

Ship System Interface Requirements

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Electrical Power

(KW) 25KW 80KW 200KW

Compressed Air 

(Minimum Pressure 

and Consumption 

Rate) 10 SCFM at 90-150 PSI 80 SCFM at 90-150 PSI 240 SCFM at 90-150 PSI

Potable Water

(Minimum Pressure 

and Consumption 

Rate) None None None
NSWCCD Ballast Water Treatment Survey

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Ship System Interface Requirements

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Seawater

(Minimum Pressure 

and Consumption 

Rate)

5 GPM for cooling 

water 10 GPM for cooling water 30 GPM for cooling water

Fuel

(Minimum Pressure 

and Consumption 

Rate) None None None

Drainage 

Requirements None None None

Has the system 

been Shock (MILS-901D, Grade B) or 

vibration tested 

(MIL-STD-167)

tested? No. No. No.

Is the system 

hardened or 

ruggedized? Yes Same Same

Other Please see the various 

additional Attachments 

for more info and 

details Same Same

Cost and Operating Information

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Cost per Unit $250,000.00 $350,000.00 $1,000,000.00

Consumables 

Cost for 6 months 

of operation $0.00 $0.00 $0.00

Estimated 

operating cost per 

m

3

treated water

The only cost of 

operation is the cost of 

the electric power Same Same
NSWCCD Ballast Water Treatment Survey

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Cost and Operating Information

Small Unit

(~400 gpm/100m3/hr)

Medium Unit

(~3,000 gpm/700 m3/hr)

Large Unit

(~10,000 gpm/2,000 m3/hr)

Annual Operating 

Labor Hours 

Zero! Because the ETI 

BWTS is a very

automated and 

controlled system 

which can also, via, 

BallastWatch, be 

remotely monitored via 

the web. Same Same

Annual 

Maintenance 

Labor Hours

Because there are no 

moving parts or filters, 

the maintenance time 

require should be less 

than 40 hours/ year. Same Same

Other

Additional 

Comments

Please call me to review and discuss the above when you have a 

moment.