PNW WASTEWATER SYSTEM versus CONVENTIONAL WASTEWATER SYSTEMS
Why it's worth it?
Because we realize that energy and maintenance
are two major components in the cost of an installation, we work with
the best water and wastewater treatment manufacturers to offer you
low energy consumption and cost-effectively equipment.
Cost study: conventional wastewater
treatment versus Advanced Wastewater Treatment
AMTS : System benefits - Cost comparisons
PNW wastewater systems can meet all existing or proposed
waste Effluent Regulations very Cost-Effectively. Natures own system
and this system have a lot in common. Almost all wastewater can be
treated biologically; this is also true with our systems. Pollution
control the natural way has become a mainstream consideration when
engineering a modern wastewater plant. It makes sense to study nature
and duplicate this process.
SBR
cost
Size
Initial
capital cost (average)*
Annual
O&M Costs*
20
years cost**
0.5
MGD
$1,740,000
$255,000
$6,480,000
1.0
MGD
$3,480,000
$511,000
$13,700,000
2.0
MGD
$4,940,000
$1,022,000
$25,380,000
AMTS
Cost
Size
Initial
capital cost (average)
Annual
O&M Costs***
20
years cost
0.5
MGD
$957,000
$122,000
$3,397,000
1.0
MGD
$1,914,000
$245,000
$6,814,000
2.0
MGD
$2,722,000
$470,000
$12,122,000
* based
on EPA Office of Water Publications dated September 1999 for
SBR process.
** Excludes any borrowing or cost money or cost of moving expenditures.
*** Annual O&M savings with AMTS result from :
- NO sludge handling costs - Low electrical costs
- Low personnel costs
Low cost energy installations
PNW Inc. selected the ADS® system because it uses the least amount
of energy per million gallons of water treated and the least amount
of dollars per person in blower costs.
Energy and Cost Comparisons of Three Aeration Systems
Exceptional ASCE certified oxygen transfer efficiency with
ADS minimizes electrical costs especially in shallow water applications.
The bubbles produced by the air diffusers are less than 3 mm
in diameter and rise at approximately 0.25 m/s (0.8 ft/sec),
providing the highest oxygen transfer efficiency in the aeration
industry (15.7% in 1.5m H2O).
High oxygen transfer yields 1/6 the energy cost of surface aerators
and with only one moving part, the blower, Air Diffusion Systems
average only one hour per day to maintain.
AMTS : How good is your lagoon IQ ?
Lagoons have been under designed for nearly 50 years but with AMTS,
that’s a thing of the past…
Typical Facultative Lagoon Effluent
AMTS High Performance Lagoon
- BOD5 of 40-50 mg/L
- TSS of 30-40 mg/L
- TAN of 10-12 mg/L
- TP of 4-5 mg/L
- BOD5 of 10 mg/L
- TSS of 15-20 mg/L
- TAN of < 1 mg/L
- TP of < .5 mg/L
When fully installed, AMTS will guarantee results. In most cases, it
will achieve 90+% removal with low operating costs, built-in scalability
and sludge hauling ONCE A DECADE not EVERYDAY!
