Atlantic County Utilities Authority Wastewater Treatment Facility

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1 Atlantic County Utilities Authority Wastewater Treatment Facility

2 ACUA s Operates a Regional System 40 MGD Activated Sludge Treatment Plant 20 Regional Pumping Stations Ocean Outfall

3 ACUA Regional System Planned and developed in the 1970 s s in response to the contamination of the back bays. Shell fishing was banned in the back bays and intercostals waterways. The ACUA replaced smaller treatment plants in our member communities

4 Original ACUA Regional System Mainland Communities Sommers Point Linwood Northfield Egg Harbor Township Pleasantville Absecon Galloway Township Coastal Communities Longport Margate Ventnor Atlantic City Brigantine

5 ACUA Regional System Expanded in the 1990 s s to provide wastewater services to the Pineland s s designated regional growth areas in Mays Landing, Egg Harbor City and Galloway and Egg Harbor Townships. Coastal Alternative Communities Hamilton Township Egg Harbor City

6 Regional Wastewater System

7 City Island Plant 40 Million Gallons per Day Capacity

8 Wastewater Treatment Wet End Treatment Removal of solids and colloidal solids from wastewater Disinfection of treated effluent Discharge to Ocean Solids End Treatment Solids Thickening Incineration Ash Disposal

9 Influent Sources Pipelines from Collection System Trucked Septic Tank and Storage Tank Wastes

10 Trucked Wastewater Sampling and Testing Screening and Grit Removal

11 Preliminary Treatment Metering Screening for Rags and Debris

12 Primary Treatment Removal of Settleable Solids Water (Primary Effluent) Overflows Weirs Settleable Solids are removed from the bottom of the tank

13 Biological Treatment Removal of Colloidal Solids by Microorganisms

14 Secondary Clarification Treated Water overflows Weirs to the Effluent Equalization basin prior to discharge to the Ocean Biological Solids (microorganisms)settle to bottom and are returned to Aeration Tanks

15 Odor Control Covers on tanks where turbulent conditions exist control odors Odiferous air is removed from covered tanks and buildings and treated through Carbon Columns or Bio Filters

16 Effluent Discharge Treated Wastewater stored in Lagoon prior to Discharge to Ocean Treated Wastewater pumped to 4 mile Effluent Pipeline

17 Effluent Disinfection After Physical and Biological Treatment Sodium Hypochlorite is applied to the wastewater to disinfect the treated effluent prior to discharge to the Ocean.

18 Effluent Discharge After Physical and Biological Treatment and Disinfection flow is pumped over 4 miles to a point 1.5 miles into the Atlantic Ocean

19 What happens to the Solids removed from the Wastewater?

20 Solids Sources Primary Biosolids and Grease from Primary Treatment Wasted Biomass and Grease from Activated Sludge Process Trucked Biosolids and Greases from Outside Sources

21 Solids Thickening Centrifuges with the help of Polymer thicken wasted biological solids Gravity thickens primary solids

22 Solids Blending and Dewatering Thickened Biological Solids and Thickened Primary solids are blended and then Dewatered with Centrifuges

23 Dewatered Biosolids are then Incinerated Excess Incinerator Capacity is utilized by outside customers disposing of their Dewatered Biosolids and Greases

24 Dewatered Biosolids Incineration Dewatered Biosolids and greases are fed to the highly regulated incinerator where it is heated to 1500 degrees F and converted into ash and CO 2

25 How much electricity does it take to operate the Atlantic County Utilities Authority s Treatment Facilities? Approximately 55 Megawatt-hours of Electricity each day. That s equivalent to Approximately 1860 homes...acua s electric bill for last year was over $2.8million.

26 Why Solar and Wind Electric Costs account for over 15% of the Facilities annual Budget. Electric Costs have risen over 33% in the last 3 years. The Wind Turbine and Solar projects will stabilize over 50% of our Electrical Costs for the next 20 years.

27 Windmill Production The Windmills produce electricity only when the wind blows over 7 mph. The windmills only operate at their rated capacity with the wind speed is over 12 mph. Production rates vary as the wind varies. The windmills shut down at wind speeds over 40 mph.

28 Wind Power When the wind is blowing over 12 mph. The ACUA facility is completely powered by the wind.and The windmills can export 4.8 Megawatts to the local electric grid. During calm or gusty weather, when the windmills are not at peak capacity, the facility buys electricity from the local power grid.

29 Windpower Benefits Wind Power is a renewable energy source which will never run out. Wind Power production generates no air or water pollution. The ACUA can purchase wind generated electricity for 7.9 / kwh delivered for the next 20 years. Currently Electrical Grid prices are over 12 / kwh delivered and rising. Estimated $350,000 savings per year.

30 Solar Power The ACUA Solar Farm is the 2 nd largest facility of its type in New Jersey. The Solar Farm consists of over 2800 solar panels. Each solar panel can generate 175 watts of electricity. The Solar Farm is rated at 500 kwatts and should provide over 600,000 kwh annually. Solar Energy is expected to provide 3% of the Facilities Electricity.

31 Solar Power Benefits Solar Power is a renewable energy source which will never run out. Solar Power production generates no air or water pollution. The ACUA owns and operates the Solar Farm. The Total Project cost $3.9 M. Energy Rebates of $1.9 M were obtained from the New Jersey Board of Public Utilities. The solar panels will provide Electricity at rates lower than 5 per kwh for the next 20 years. Anticipated Savings exceed $35,000 per year