FAST ® Sewage Systems

Complete Package Units
for New or Existing Vessels

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SUMMARY

• Introduction
  
• Click on logo to go to over 1,000  References

• D-Series Unit Specifications
  • General
  • Certifications
  • Classification Societies
  • Wastewaters treated
  • Effluent quality
  • Process
  • Rated capacity
  • Load variations
  • Overload capacity
  • Operation
  • Disinfection
  • Equipment
  • Construction
  • Corrosion Protection
  • Electrical Equipment
  • Piping
  • Consumables
  • Options Available
    
• Technical Data
• FAST ® D-SERIES DATA TABLES
• Exclusive Benefits of FAST ®
  
  

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INTRODUCTION

Each D-Series FAST ® System is completely assembled, wired and tested on its own foundation. The unique design provides the greatest possible flexibility in locating and installing the system aboard ship.

Where space and access permit, the D-Series System can be installed as a unit. Shipboard connections and installation labor are reduced to an absolute minimum.

The D-Series Media Tank and Machinery Module can be furnished on separate foundations to use available space to best advantage, and the Media Tank itself can be furnished in bolt-together sections. All D-Series Systems are factory assembled, wired and tested. Bolt-together units can be broken down and reassembled in place.

Fully certified FAST ® sewage treatment systems are available in capacities up to 175,000 GPD. They are the best marine treatment systems in the world.

FLOW DIAGRAM

D-SERIES UNIT SPECIFICATIONS

General

Package unit, assembled and wired on steel skid, tested at factory before shipment. Includes valves, machinery and controls necessary for automatic operation.

Certifications

USCG Type II for Inspected Vessels, IMCO, Canadian Great Lakes.

Classification Societies

American Bureau of Shipping, Canada Steamship Inspection, Bureau Veritas, Det Norske Veritas, Germanischer Lloyd, Lloyd Register, Nippon Kaigi Kyokai, Polski Rejestr Statkov, Registry of the USSR.

Wastewaters treated

Any combination of raw, unscreened, fresh or salt water domestic sewage from standard or vacuum toilets, personal washwater, laundry or galley.

Effluent quality

Equal or better than any known marine standard worldwide. Test reports available on request.

Process

Fixed Activated Sludge Treatment (FAST ®), patented aerobic biological process employs fixed media as site for microbial growth.

Rated capacity

Refer to Table.

Load variations

Unit shall operate properly and meet regulatory requirements at any loading from zero to overload capacity, including surges at change of watch, changes in crew size and changes in salinity of flushing water.

Overload capacity

Up to 25 % as a percentage of rated capacity, the average load shall not exceed:

Operation

Sewage enters media tank above constant waterline. Microbes normally found in sewage attach to fixed media and use organic material in sewage as food. Use of fixed media permits formation of much larger microbial population than would otherwise be possible, providing consistent treatment despite surges and other variations in loading. Unit can be bypassed up to 3 weeks, then fully treat sewage as vessel enters controlled waters. No obnoxious odors.

Compressed air operates airlifts to aerate and circulate contents of tank. Turbulence throws foreign objects to side of tank. Compressed air can be valved to air scour and clean tank before draining.

Process is inherently self regulating. There are no adjustments and proper operation does not depend on skill of personnel. Unit will handle any object which can pass through a toilet. No pre treatment, maceration, or screening is required.

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Disinfection

USCG and IMCO certified units employ solid tablet chlorine feeders. Dosage is proportional to flow. Canadian Great Lakes certified units employ ultraviolet sterilization in lieu of chlorination.

Equipment

Basic unit

Single vertical cylindrical media tank. Single vertical cylindrical chlorine contact tank. Unit incorporates structural steel skid, tablet chlorinator, air pressure regulator, and orifice plate and gravity overboard connection.

Aeration blower (if required)

Roots rotary lobe blower, belt drive, belt guard, relief valve, discharge check valve, silencer, motor and motor starter in lieu of pressure regulator and orifice plate. Fully assembled on system.

Discharge pump (if required)

Close coupled centrifugal, isolation valves, float switch in contact tank for automatic operation, motor and motor starter. Fully assembled on system. Pump is 85-5-5-5 marine bronze with stainless steel shaft and hardware.

Duplex Discharge Pumps (if required)

Two identical pumps per above, isolation and discharge check valves, standby pump starts automatically when high level float switch in contact tank energized, each pump sized for 100 % duty, either pump can be selected as duty pump. Fully assembled on system.

U.V. Sterilizer Package (if required)

U.V. Sterilizer and chart recorder for remote mounting in lieu of chlorinator. Discharge pump(s) required.

Modular construction (if required)

Media tank shall be assembled on its own structural base.

The contact tank, chlorinator and machinery shall be assembled as a machinery module on a separate structural base for remote installation. This will permit installation of the system in locations where sufficient space is not available for installation as a unit.

Modular Media Tank (if required)

For installation in existing vessels where access to the intended machinery space is limited. The media tank shall be furnished in bolt-together sections. Each section shall pass through a clear opening of dimensions as listed on the Data Table.

Remote Alarm Panel (if required)

Visible and audible alarms for high level and blower off. Low U.V. alarm included with U.V. sterilizer package.

Construction

All welded ABS Grade A (ASTM A-36) steel with bolted tank top, full structural steel skid, lifting lugs. Minimum section thickness 1/4 in. (6 mm). Bulkheads reinforced to withstand USCG / IMCO test head. All penetrations and tank seams full welded both sides.

Corrosion Protection

Interior and exterior surfaces grit blasted to white metal (S.S.P.C. 5). Two coats polyamide epoxy tank lining to 12-14 mils DFT. Assembly hardware and threaded tank nozzles stainless steel.

Electrical Equipment

Voltages

208 / 230 / 460 / 575 VAC 3 , 60 Hz and 380 VAC 3 , 50 Hz standard.

Motors

Totally enclosed fan cooled, marine duty, Class F insulation.

Controls

Across the line starting, overload protection all 3 phases, marine duty, NEMA 4 / IP65 enclosure, terminal board for external connections, manual overrides.

Electric Service Required

Refer to table.

Explosion proof equipment

Per USCG Electrical Engineering Regulations 46 CFR part 111.80-5(C) for Class 1, Division 2, Group D hazardous locations.

Piping

Schedule 40 steel, schedule 80 PVC or CPVC as applicable. All water piping external. Valve types and materials suitable for intended purpose.

Consumables

Chlorine consumption for continuous operation estimated at:

Ultraviolet lamps to be replaced at 8,000 hour intervals, yearly for continuous operation.

Options Available

Non standard voltages, special electrical enclosures, tank insulation and heaters for low temperature operation, metric (DIN) flanges, special tank and machinery arrangements are available.

Specifications are subject to change without notice.

Technical Data

The crew size shown on Data Table are for treatment of black water only for persons working and living aboard. If other type of sewage are to be treated, add appropriate factors given below to obtain service factor. Multiply service factor by actual crew size to obtain equivalent black water crew size and use this figure to select a unit from the table.

For persons working but not living aboard, or living but not working aboard, count each of these as one-half person to obtain equivalent crew size.

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FAST ® D-SERIES DATA TABLES

NOTE: dimensions and weights may vary slightly from those given in table depending on equipment selection.

If duplex pumps are required, increase outlet piping connection size by one pipe size.

Exclusive Benefits of FAST ®

• FAST ® units have been in use on board platforms for almost 20 years and have proved a very reliable treatment system in a difficult environment while complying with very tough environmental regulations.
• FAST ® (Fixed Activated Sludge Treatment) uses the bacteria already present in human waste to remove the impurities from sewage. The effluent is clear odorless water and is disinfected before discharge.

• The bacteria naturally attach themselves to fixed media and use the sewage as food and with it produce water, carbon dioxide and a silt-like sludge. This sludge is retained in the tank to be pumped out at the owner's discretion.
• Air lifts circulate the sewage to the bacteria and transfer oxygen into the water. The high oxygen content of the water prevents foul odors and tank corrosion due to hydrogen sulfide.
• The type of bacteria which grow on the media provide a very high quality effluent.
• The system is simple and completely self-regulating. The culture of bacteria adjusts itself to the food supply. Chlorination is automatic, based on the actual water flow. The blowers provide enough air to prevent odor and corrosion even under the most extreme conditions.

• Clogging is virtually impossible. There are no moving parts in contact with sewage. The bacteria consume rags, paper, sanitary napkins, etc. Such things as plastic bags remain in a portion of the tank where there is a good access for easy removal (but removal should not be needed for several years). Cigarette filter tips and other small objects are pumped out with the sludge.
  
  

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