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1

Feed System

Max feed per system: 9600 kg/day

84

Drum Filters

(estimated, including
sluicing
pumps)

Side-stream units: 36 units – 1 unit per tank

•40-micron mesh

•99% removal of particles greater than 40-micron

•1,875 m3/h each (11.9 MGD)

•Tank mounted drum screen with connection
(dimensions to be provided by vendor).
Internal bypass in the tank.

•Influent TSS concentration 25 mg/L (est)

•Temperature: 14°C

•Salinity: 12-23 ppt (parts per thousand)

Biofilter area units: 48 units (est) – actual number of units to be proposed by vendor including redundancy (e.g., N+1 per system):

•Centralized sluicing pump station for
drum filters in the biofilter area

•60-micron mesh

•99% removal of particles greater than 60-micron

•Total average Phase 2 flow: 135,000 m3/h
(856 MGD)

•Average flow per system (6 systems):
22,500 m3/hr. (143 MGD)

•Max flow: 125% of average flow

•Influent TSS concentration: 25 mg/L (est)

•Temperature: 14°C

•Salinity: 12-23 ppt

460 V, 60 Hz, 3 phase

6*

Protein Skimmer

Systems

(Foam Fractionator)

•Total average Phase 2 flow:
135,000 m3/hr. (856 MGD)

•Average flow per system (6 systems):
22,500 m3/hr.

•(143 MGD) *Actual number of units
to be defined by vendor

•Max flow: 125% of average flow

•Influent BOD concentration: 5-15 mg/L

•Influent TSS concentration: 10-15 mg/L

•Influent TAN (Total Ammonia Nitrogen):
1.7 mg/L as N

•50% TSS removal

•CT: 10 mg-min/L

•Temperature: 14°C

•Salinity: 12-23 ppt

460 V, 60 Hz, 3 phase

6

Biofilters

(MBBRs)

4 MBBR tanks/system including:

»media

»mixers

»O2 diffusers

»Inlet dist. pipe and screens

»Effluent screens

•Total average Phase 2 flow:
135,000 m3/hr. (856 MGD)

•Average flow per system (6 systems):
22,500 m3/hr. (143 MGD)

•Max flow: 125% of average flow

•Temperature: 14°C

•Influent BOD concentration: ≤7 mg/L

•Influent TSS concentration: ≤7.5 mg/L

•Influent TAN concentration: 1.7 mg/L as N

•Minimum effluent alkalinity: 100 mg CaCO3/L

•Minimum 80% dissolved oxygen out of
the reactors

•Approx. TAN fish production to be removed
15 kg/h

460 V, 60 Hz, 3 phase

42

Degassers

36 cascade-type side degassers

•Average flow: 1,875 m3/hr. (11.9 MGD), each

•Influent TSS concentration: 7.5 mg/L

•Bypass of the degasser should be provided

•Side degasser vendors are responsible to include in their proposal one (1) horizontal end-suction centrifugal pump per degasser to return the filtered water back to the tank.

»Flow per pump 1,875 m3/hr. (11.9 MGD)Approx. Head 11.3 m (37 ft).

»Vendor to confirm pump’s head according to the final arrangement.

»Totally Enclosed, Fan-Cooled (TEFC) NEMA motors with variable-frequency drive (VFD) (alternative motor arrangements will be considered).

»Include one (1) un-install backup
complete pump set per system
(motor and appurtenances).

6 shallow or flooded biofilter systems with vacuum degasser treating 10% of total flow

•Total average Phase 2 flow: 135,000 m3/hr.
(856 MGD)

•Average flow per system (6 systems):
22,500 m3/hr. (143 MGD)

•Max flow: 125% of average flow

•Influent TSS concentration: 7.5 mg/L

OG tanks effluent CO2 concentration: 12 mg/L

Required CO2 influent concentration to the OG tanks: 5 mg/L (target concentration achieved by all degassing units in the system – side-stream and biofilter units. Vendor to confirm CO2 balance)

Maximum nitrogen gas concentration in water: 100%

460 V, 60 Hz, 3 phase

1	Feed System	Max feed per system: 9600 kg/day
84	Drum Filters (estimated, including sluicing pumps)	Side-stream units: 36 units – 1 unit per tank •40-micron mesh •99% removal of particles greater than 40-micron •1,875 m3/h each (11.9 MGD) •Tank mounted drum screen with connection (dimensions to be provided by vendor). Internal bypass in the tank. •Influent TSS concentration 25 mg/L (est) •Temperature: 14°C •Salinity: 12-23 ppt (parts per thousand) Biofilter area units: 48 units (est) – actual number of units to be proposed by vendor including redundancy (e.g., N+1 per system): •Centralized sluicing pump station for drum filters in the biofilter area •60-micron mesh •99% removal of particles greater than 60-micron •Total average Phase 2 flow: 135,000 m3/h (856 MGD) •Average flow per system (6 systems): 22,500 m3/hr. (143 MGD) •Max flow: 125% of average flow •Influent TSS concentration: 25 mg/L (est) •Temperature: 14°C •Salinity: 12-23 ppt 460 V, 60 Hz, 3 phase
6*	Protein Skimmer Systems (Foam Fractionator)	•Total average Phase 2 flow: 135,000 m3/hr. (856 MGD) •Average flow per system (6 systems): 22,500 m3/hr. •(143 MGD) *Actual number of units to be defined by vendor •Max flow: 125% of average flow •Influent BOD concentration: 5-15 mg/L •Influent TSS concentration: 10-15 mg/L •Influent TAN (Total Ammonia Nitrogen): 1.7 mg/L as N •50% TSS removal •CT: 10 mg-min/L •Temperature: 14°C •Salinity: 12-23 ppt 460 V, 60 Hz, 3 phase
6	Biofilters (MBBRs) 4 MBBR tanks/system including: »media »mixers »O2 diffusers »Inlet dist. pipe and screens »Effluent screens	•Total average Phase 2 flow: 135,000 m3/hr. (856 MGD) •Average flow per system (6 systems): 22,500 m3/hr. (143 MGD) •Max flow: 125% of average flow •Temperature: 14°C •Influent BOD concentration: ≤7 mg/L •Influent TSS concentration: ≤7.5 mg/L •Influent TAN concentration: 1.7 mg/L as N •Minimum effluent alkalinity: 100 mg CaCO3/L •Minimum 80% dissolved oxygen out of the reactors •Approx. TAN fish production to be removed 15 kg/h 460 V, 60 Hz, 3 phase
42	Degassers	36 cascade-type side degassers •Average flow: 1,875 m3/hr. (11.9 MGD), each •Influent TSS concentration: 7.5 mg/L •Bypass of the degasser should be provided •Side degasser vendors are responsible to include in their proposal one (1) horizontal end-suction centrifugal pump per degasser to return the filtered water back to the tank. »Flow per pump 1,875 m3/hr. (11.9 MGD)Approx. Head 11.3 m (37 ft). »Vendor to confirm pump’s head according to the final arrangement. »Totally Enclosed, Fan-Cooled (TEFC) NEMA motors with variable-frequency drive (VFD) (alternative motor arrangements will be considered). »Include one (1) un-install backup complete pump set per system (motor and appurtenances). 6 shallow or flooded biofilter systems with vacuum degasser treating 10% of total flow •Total average Phase 2 flow: 135,000 m3/hr. (856 MGD) •Average flow per system (6 systems): 22,500 m3/hr. (143 MGD) •Max flow: 125% of average flow •Influent TSS concentration: 7.5 mg/L OG tanks effluent CO2 concentration: 12 mg/L Required CO2 influent concentration to the OG tanks: 5 mg/L (target concentration achieved by all degassing units in the system – side-stream and biofilter units. Vendor to confirm CO2 balance) Maximum nitrogen gas concentration in water: 100% 460 V, 60 Hz, 3 phase