MAK Water’s Membrane Bioreactor (MBR) type packaged sewage treatment plants are designed to treat domestic strength sewage, to achieve “Class A+” treated effluent, suitable for reuse in “risk category high” applications or for discharge to sensitive environments.
The standard treatment process includes influent screening, balance tank mixing, anoxic & aerobic treatment, flat sheet membrane filtration with air scouring and CIP system, and effluent disinfection (hypochlorite dosing). MAK Water’s bioreactors are corrosion resistant and are self-contained, modular systems for easy deployment to remote locations.
AC 415V, 3 Phase, 50 Hz (other voltages and frequencies available on request)
Power con- sumption
MBR plant
kW
9
19
26
36
42
65
83
*2, *3Recirculation pump
0.75
1.1
1.1
1.5
2.2
3
4
*2Irrigation pump
0.75
1.5
2.2
2.2
7.5
7.5
11
Footprint
FRP bioreactor(s) & access platform(s)
m
6 x 3.2
9 x 3.2
12 x 3.2
12 x 3.2
12 x 5.6
12 x 8.8
12 x 12
Containerised plant room
m
*4N/A
6 x 2.4
Sludge tank(s)
m
Ø1.6
Ø2.6
Ø2.97
Ø3.57
Ø3.95
7.7 x 3.55
8.5 x 3.95
Characteristics
Units
Influent
Effluent
Temperature
°C
15~35
-
*5pH
pH units
6.5~8.5
6.5~8.5
*6Biological oxygen demand (BOD)
mg/L
*7≤350
<10
Suspended solids (TSS)
mg/L
*7≤350
<10
Emulsified oil and grease
mg/L
<2.0
-
Free oil & grease
mg/L
<0.1
-
Total nitrogen (T-N)
mg/L
<50
<40 (or <10 mg/L reduction from influent value)
Total phosphorus (T-P)
mg/L
<16
4~12 (variable according to coagulant dose rate)
Total dissolved solids (TDS)
mg/L
<2,000
-
Turbidity
NTU
-
<2 (95%ile)
E.Coli
cfu/100 mL
-
<1
Coliphages
pfu/100 mL
-
<1
Clostridia
cfu/100 mL
-
<1
Free chlorine
mg/L
-
0.2~2
*2UV dose
mJ/cm2 @ 70% UVT
40
Bacteria removal (membrane only)
Log
*8≥4
Virus removal (membrane only)
Log
*8≥1
*1 Sold separately, *2 Optional equipment, *3 Sizing based on recommend treated effluent tank volume, *4 Plant room integral to FRP bioreactor, *5 Caustic dosing may be required where influent alkalinity is inadequate, *6 Sucrose dosing may be required where ratio of BOD to TKN is ≤5, *7 Referenced from Metcalf & Eddy (5th edition, 2014), Typical composition of untreated domestic wastewater; higher/lower design values available on request, *8 Additional log credits are available with UV and chlorination; consult MAK Water.
STANDARD INCLUSIONS + OPTIONS
✓= Standard Supply, o = Optional Supply, - = Not Available
Equipment
MBR-020
MBR-045
MBR-060
MBR-075
MBR-155
MBR-225
MBR-315
Automatic inlet screen (2 mm in two dimensions)
✓
✓
✓
✓
✓
✓
✓
Influent mixing pump
✓
✓
✓
✓
✓
✓
✓
Influent feed pump
✓
✓
✓
✓
✓
✓
✓
FRP bioreactor(s) with aluminium access platform(s) & ladder(s)
Aerobic zone with submersible aerator & MLR pump
✓
✓
✓
✓
✓
✓
✓
MBR zone with flat sheet membranes and submersible RAS/WAS pump
✓
✓
✓
✓
✓
✓
✓
CIP/membrane flush tank
✓
✓
✓
✓
✓
✓
✓
Bioreactor roofing (COLORBOND® steel sheeting)
o
o
o
o
o
o
o
Plant room with air conditioning, overhead lighting & GPOs for maintenance
Chemical dosing
Coagulant
✓
✓
✓
✓
✓
✓
✓
Hypochlorite
✓
✓
✓
✓
✓
✓
✓
Sucrose
o
o
o
o
o
o
o
Caustic
o
o
o
o
o
o
o
MBR permeate pump
✓
✓
✓
✓
✓
✓
✓
Treated effluent tank recirculation pump
o
o
o
o
o
o
o
Pressurized UV reactor (non-validated*1)
o
o
o
o
o
o
o
PLC control system with touch screen HMI
✓
✓
✓
✓
✓
✓
✓
Externally mounted MBR air scour blower
✓
✓
✓
✓
✓
✓
✓
Sludge tank with supernatant sampling points & discharge valves
✓
✓
✓
✓
✓
✓
✓
Supernatant sump with submersible pump & level control
o
o
o
o
o
o
o
Irrigation pump with level control & mechanical flow totaliser / flow transmitter
o
o
o
o
o
o
o
Instrumentation
Standard package
✓
✓
✓
✓
✓
✓
✓
Premium package with ClearAccessTM remote monitoring
o
o
o
o
o
o
o
Instrumentation & Controls
Standard package
Premium package
Level switches
Balance, bioreactor and treated effluent tank
✓
-
Chemical dosing & sludge tank float level switches
✓
✓
Level transmitters
Balance, bioreactor and treated effluent tank
-
✓
Pressure transmitters
Membrane differential pressure
✓
✓
Pressure switches and gauges
✓
✓
Flow transmitters
Influent feed, MLR and RAS/WAS
✓
✓
Permeate and irrigation pump (with optional irrigation pump)
-
✓
Flow indicator
Permeate flow
✓
-
Mechanical flow totaliser
Irrigation pump (with optional irrigation pump)
✓
-
Analysers
Aerobic zone dissolved oxygen
✓
✓
Aerobic zone pH analyser
-
✓
MBR zone mixed liquor suspended solids
-
✓
Permeate turbidity
-
✓
Permeate pH and free chlorine
-
✓
UV intensity sensor (with optional UV steriliser)
-
✓
Variable speed drives
Influent feed pump
-
✓
Submersible aerator
✓
✓
MLR pump
-
✓
RAS/WAS pump
-
✓
MBR permeate pump
-
✓
ClearAccessTM remote monitoring & control capabilities
