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capacity within the constraints of the existing facility. Automated flow control to Pass D will be provided to further enhance clarifier operation along with the capability to add polymer. The production of biological foam or froth is associated with the longer SRTs needed for nitrification. ABBNR includes three methods to control froth: RAS chlorination, froth hoods, and froth wasting. A moderate level of instrumentation will also be provided. A schematic of the process is shown in Figure 1-3. Figure 1-3: ABBNR Process Configuration In addition, this technology typically includes the capability to direct sludge dewatering centrate to a dedicated aeration tank for separate nitrification. A portion of mainstream RAS would be added to seed the process and alkalinity would be provided to satisfy the centrate nitrification requirement. Nitrified centrate would be returned to the head of the A Pass of the remaining tanks to be further treated. At Port Richmond, sludge is shipped to another facility for dewatering and therefore this capability will not be provided. 1.1.6 Full Step BNR
The Full Step BNR (FSBNR) process is similar to the ABBNR, but provides additional control and flexibility. All of the components of ABBNR will be provided, in addition to the following: • Flow distribution and control will be provided on all 4 passes of the aeration tanks. • Alkalinity and Methanol facilities will be provided and sized to meet the load to the aeration tanks. • The RAS capacity will be expanded to 100% of the DDWF. • The process blowers and aeration system will be upgraded to meet the needs of the nitrogen removal process. A schematic of the process is shown in Figure 1-4. 1.1.7 Full Step BNR with Solids Filtration Figure 1-4: FSBNR Process Configuration The FSBNR with Solids Filtration (FSBNR-SF) process will provide all of the components of FSBNR, in addition to a solids filtration process installed downstream of the secondary treatment process to enhance the removal of particulates in the wastewater, including solids, particulate BOD, and particulate TKN. Secondary effluent is applied to a filter bed and the filter media
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Page 4 and 5: two options are defined for process
Page 6 and 7: WPCP 26th Ward Bowery Bay Coney Isl
Page 8 and 9: Table EX-2: Key Cost Assumptions An
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Page 12 and 13: Figure EX-4: Full Step BNR $350 Cap
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Page 16 and 17: Figure EX-8: Membrane Bioreactor $9
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Page 20 and 21: Table 1-2: 2003-2005 Influent and E
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Harbor Estuary Program June 2007 Po
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Harbor Estuary Program Red Hook Wat
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Harbor Estuary Program June 2007 Re
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Red Hook WPCP HEP Conceptual Design
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HYPOCHLORITE STORAGE TANKS Average
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Parameter Units Minimum Week Minimu
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Parameter Units Minimum Week Minimu
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Red Hook Full Step BNR w DENITRIFIC
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EFFLUENT FILTER PLAN FACILITY AND F
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EFFLUENT FILTER SECTION FLOW CONDUI
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EFFLUENT FILTER PLAN FACILITY AND F
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MICRO FILTER PLAN - PROCESS FLOW SC
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MICRO FILTER PLAN FILTER TANKS AND
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MICRO FILTER PLAN FACILITY AND FLOW
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PRIMARY SETTLING TANKS SECTION EFFL
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NORTH FINE SCREENING FACILITY BOTTO
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FINE SCREENING FACILITY SECTION
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CITY OF NEW YORK DEPARTMENT OF ENVI
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SECTION DETAIL SECTION SECTION AERA
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SECTION ELEVATION
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AERATION TANK PROCESS AIR DISTRIBUT
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AERATION TANK PROCESS AIR DISTRIBUT
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PROCESS AIR BLOWERS - SCHEMATIC - M
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RAS SYSTEM SCHEMATIC FULL STEP BNR
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WAS SYSTEM SCHEMATIC PROPOSED
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SECTION PLAN FROTH CONTROL HOOD - P
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FROTH CONTROL SURFACE WASTING SYSTE
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FROTH CONTROL SURFACE WASTING MEMBR
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CHEMICAL SYSTEMS - PLAN - STORAGE A
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METHANOL FEED SYSTEM - PART PLAN ME
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METHANOL FEED SYSTEM - SCHEMATIC -
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ALKALINITY FEED SYSTEM - SCHEMATIC
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FIG. POLYMER FEED SYSTEM - SCHEMATI
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ELUTRIATION EFFLUENT ELUTRIATION RE
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MEMBRANE BIO REACTOR - PLAN FLOW CO
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FINAL SETTLING TANKS - PLAN - DEMO
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EFFLUENT FILTER PLAN - PROCESS FLOW
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MWH/Hazen & Sawyer A Joint Venture
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