draft_SOW and SPECIFICATIONS Wastewater Treatment System.pdf

DRAFT

SOW and SPECIFICATIONS New Wastewater Treatment System

DeGray Lake, AR

Supply & deliver one wastewater treatment system Design Flow 13,000GPD

BASIC CONFIGURATION:

Flow Equalization Equipment

1 Flow equalization chamber having a volume of 5,000 gallons 2 Flow Equalization pumps ½ hp, 240 volt, 1 phase, 60 Hz.

4 Liquid level sensors 1 Flow proportioning control chamber complete with v-notch control with flow piping and valving and cover (Stainless steel to be 1/8”). Chamber to have grit removal zone 1 Diffused aeration system with course air disc diffusers and diffuser drop pipes 2 Flow Equalization Blower motor units, 30 SCFM @ 5psi equipped with energy efficient motors 2 hp, 240 volt, 1 phase, 60 Hz. mounted within a fiberglass blower sound enclosure for noise reduction, mounted on the foundation pad

1 Electrical flow equalization control system, Model CP-2 complete with enclosure Nema 4X fiberglass. IEC Motor starters, circuit breakers, phase protection, liquid level sensors, the selector switches are all designed to operate off of 240 volt, 1 phase, 60 Hz main power

1 High Water Alarm with light and horn

Major Secondary Treatment Equipment

1 Aeration chamber having a volume of 13,000 gallons 2 Blower motor units, each with a capacity of 70 SCFM at 5 PSI, equipped with 3 hp energy efficient motor 240 volt, 1 phase, 60 Hz. Each mounted within a WWD-FE-SE Fiberglass Blower Sound Enclosure Housing for sound reduction, mounted on the foundation pad

1 Pre-wired electrical control system Model CP-1 complete with enclosure Nema 4X fiberglass with the necessary Motor IEC starters, circuit breakers, programmable timers, selector switches all designed to operate off of 240 volt, 1 phase, 60 Hz main. With phase protection for all equipment

1 Gravity Hopper clarifier chamber having 2 (Two) Sludge return pump, airlift type 3 inch size 2 (Two) Skimmer pump, airlift type 2 inch size

1 Air manifold box beam complete with diffuser drop pipe assemblies with diffusers and pressure relief facilities complete with pressure gauge

1 Outlet from clarifier weir trough 1 All piping to be painted steel schedule # 40 1 Lot of course air bubble diffusers in aeration chamber, mounted on 6” centers

Sludge Holding Chamber

1 Sludge holding chamber with a volume of 3000 gallons, aerated and constructed as integral to plant. The air diffuser drop assemblies with diffusers. Air shall be supplied from the main blower motor units.

1 3” Connection for draining sludge tank

Tertiary Filter System

One (1) Model 130-RSTF prefabricated steel rapid sand tertiary treatment process wastewater treatment system. The rapid sand tertiary filter system shall have a design flow of 13,000 gallons per day gallons per day of quality effluent less than 10-PPM BOD5 and 15-PPM TSS. The filter shall be complete with dual filter cells and shall be integral to the main tank structure.

Tertiary Filter System Equipment

2 Filter Cells 1 Clearwell integral 1 Mudwell chamber 2 Filtrate Holding Chambers 2 Mudwell pumps, rated at ½ hp, 240 volt, 1 phase, 60 hz.

2 Backwash pumps, rated at 3/4 hp 240 volt, 1 phase, 60 hz.

1 Blower motor unit with a capacity of 30 SCFM at 5 psi, equipped with 2 hp motor

240 volt, 1 phase, 60 Hz. mounted within a blower enclosure constructed of fiberglass with tertiary manifold piping and solenoid valves

1 Pre-wired electrical control system Model CP-3 complete with enclosure Nema 4X fiberglass with the necessary Motor IEC starters, circuit breakers, phase protection, programmable timers with selector switches all designed to operate off of 240 volt, 1 phase, 60 Hz main power. Panel to operate in manual mode only

1 Flanged outlet 1 Filter Media and nozzles

Disinfection System

1 270-gallon integral chlorine contact chamber 1 Tablet chlorinator 1 135-gallon de-chlorination chamber 1 Tablet feeder for de-chlorination 1 Post aeration blower unit 1 Diffuser drop with fine air diffuser 1 Effluent v-notch weir 1 Ultrasonic flow meter

Service Walkway

1 Lot of grating, for the service area only, non-skid galvanized, painted on ends for corrosion protection 1 Aluminum handrail system around the perimeter of the service walkway 1 Access Stairway with handrails

Corrosion Protection

1 All steel vessel surfaces to be prepared before painting by sandblasting 1 All steel vessel surfaces to be painted with Tnemec coal tar epoxy, 8-10 mils DFT 8 Magnesium anode packages, 17LBS each, with test stations

OTHER ITEMS

Approximate Dimensions: 44’-3”L x 11’11”W x 11’H – 40,000LBS

Only those items shown in the above specs will be furnished. All other items will be furnished by others, such as but not limited to: Excavation, All Concrete Work including material, removing tank structure from truck, Crane to set equipment, Electric power to our control panel(s) Sewage lines, Finished grading, Mounting and installation of the equipment being provided, External piping and valving, Field erection, backfilling, Field welding, water to fill the tank and fencing.