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Activated Sludge Bioreactor Plus

MAK Water’s Activated Sludge Bioreactor Plus (ASBR+) type packaged sewage treatment plants are designed to treat domestic strength sewage, to achieve “Class C” treated effluent, plus enhanced nutrient removal, suitable for reuse in “risk category low” applications or for discharge to environment. With the optional “Class A” upgrade, treated effluent suitable for reuse in “risk category medium” applications is achieved.

The standard treatment process includes influent screening, balance tank mixing, anoxic & aerobic treatment for nitrification and denitrification, clarification, effluent sterilization (chlorine tablets) and bag filtration (100 micron). The optional “Class A” upgrade includes an auto-backwashing filter (25 micron), secondary chlorination via tank recirculation and residual trim hypochlorite dosing, and analyzers for online monitoring of treated effluent turbidity, free chlorine and pH.

MAK Water’s ASBR+ Bioreactors are corrosion resistant , and are self-contained, modular systems for easy deployment to remote locations.

Technical Specifications

Standard Specifications

Parameter		Units	ASBR+009	ASBR+016	ASBR+022	ASBR+035	ASBR+045
Treatment capacity (min/max)		m³/day	3 / 9	5 / 16	7 / 22	12 / 35	15 / 45
*¹Balance tank volume (min)		m³	15	22	30	50	65
*¹Treated effluent tank volume (min)		m³	6	11	15	25	32
Sludge tank volume (min for monthly sludge removal)		m³	2	3.2	4.5	7	9
Sludge waste volume (min/max)		m³/day	0.1 / 0.3	0.2 / 0.6	0.3 / 0.8	0.4 / 1.3	0.6 / 1.7
*²Irrigation pump duty		m³/hr @ 350 kPa	1.1	2	2.8	4.4	5.6
Ambient temperature (min/max)		°C	1 ~ 35 (1 ~ 43 with optional plant room air-conditioner)
Power supply		-	AC 380~450 V, 3 Phase, 50/60 Hz
Power consumption	Class C (max)	kW	6	7	7.5	9.2	10.5
	Class A (max)	kW	6.5	7.7	9	11.2	13
	*²Irrigation pump motor size	kW	0.37	0.55	0.75	1.1	1.5
	*²Air conditioner	kW	1.5	1.5	1.5	1.5	1.5
Footprint	FRP bioreactor & access platform	m	6 x 3.2	7.5 x 3.2	9 x 3.2	12 x 3.2	12 x 3.2
Footprint	Containerised plant room	m	N/A (plant room integral to FRP bioreactor)				3 x 2.4

Characteristics	Units	Influent	* ³ Class C effluent	* ³ Class A effluent
Temperature	°C	15~35	-
pH	pH units	6.5~8.5	6.5~8.5
Biological oxygen demand (BOD)	mg/L	*⁴≤350	<20
Suspended solids (TSS)	mg/L	*⁴≤350	<30
Oil & grease	mg/L	<10	-
Total nitrogen (T-N)	mg/L	<80	<10 (or 70 mg/L reduction from influent value)
Total phosphorus (T-P)	mg/L	<16	1~6 (variable according to coagulant dose rate)
Total dissolved solids (TDS)	mg/L	<2,000	-
Turbidity	NTU	-	N/A	<5 (95%ile)
E.Coli	cfu/100 mL	-	<1,000	<10
Free chlorine	mg/L	-	0.2~2

*¹ Sold Separately, *² Optional Equipment, *³ Based on QLD Guidelines, *⁴ Referenced from Metcalf & Eddy (5th edition, 2014), Typical composition of untreated domestic wastewater; higher/lower design values available on request.

Technical Specifications

Standard Inclusions and Options

✓ = Standard Supplyo = Optional Supply- = Not Applicable

Equipment			ASBR+009	ASBR+016	ASBR+022	ASBR+035	ASBR+045
Automatic inlet screen (2 mm)			✓	✓	✓	✓	✓
Influent mixing pump			✓	✓	✓	✓	✓
Influent feed pump			✓	✓	✓	✓	✓
FRP bioreactor with access platform &ladder	Aerobic zones with submersible aerators & MLR pump		✓	✓	✓	✓	✓
	Anoxic zone with submersible mixing pump		✓	✓	✓	✓	✓
	Clarifier with scum removal system		✓	✓	✓	✓	✓
	Chlorine contract zone with tablet chlorinator		✓	✓	✓	✓	✓
	Bioreactor roofing (COLORBOND^® steel sheeting)		o	o	o	o	o
Plant room withoverhead lighting and GPO for maintenance	Chemical dosing – coagulant, sucrose & caustic		✓	✓	✓	✓	✓
	RAS/WAS pump		✓	✓	✓	✓	✓
	Effluent transfer/filter feed pump		✓	✓	✓	✓	✓
	Class C	Bag filter (100 µm)	✓	✓	✓	✓	✓
	Class A	Auto-backwashing filter (25 µm)	o	o	o	o	o
		Treated effluent tank recirculation pump	o	o	o	o	o
		Residual trim hypochlorite dosing	o	o	o	o	o
	PLC control system with HMI		✓	✓	✓	✓	✓
	Plant room air conditioner		o	o	o	o	o
Sludge tank with supernatant sampling points and discharge valves			✓	✓	✓	✓	✓
Supernatant sump with submersible pump and level control			o	o	o	o	o
Irrigation pump with level control and mechanical flow totaliser			o	o	o	o	o
Instrumentation	Standard package		✓	✓	✓	✓	✓
Instrumentation	Premium package with ClearAccess^TM remote monitoring		o	o	o	o	o

Instrumentation & Controls		Standard Package	Premium Package
Balance & chlorine contact tank float level switches		✓	-
Chemical dosing & sludge tank float level switches		✓	✓
Pressure switches		✓	✓
Pressure gauges		✓	✓
Magnetic flow transmitters (influent feed pump and MLR pump)		✓	✓
Aerobic tank dissolved oxygen analyser		✓	✓
Aerobic tank pH analyser		✓	✓
Class A only	Treated effluent chlorine & pH analyser	✓	✓
Class A only	Treated effluent turbidity analyser	✓	✓
Variable speed drives	Influent feed pump	✓	✓
	Submersible aerator 1	✓	✓
	MLR pump	✓	✓
Balance & chlorine contact tank level transmitters		-	✓
ClearAccess^™remote monitoring & control capabilities		-	✓

Sewage Treatment Hire Plant for Prison Farm

Infrastructure

A rural prison farm located south of Perth, Western Australia was undergoing a major upgrade of the existing sewage treatment plant and required additional temporary treatment capacity. The equipment needed to be onsite and operational as soon as possible. MAK Water operates an extensive hire fleet and had a suitable sewage treatment plant in stock that was able to be quickly mobilised to site. MAK Water was able to deliver the plant within three weeks and provide installation with integration of existing equipment on site.

Activated Sludge Bioreactor Plus

Serpentine, Queensland

Sewage Treatment Hire Plant For Mine Shutdown

Mining

A large fertiliser processing company was planning a major shutdown and needed a temporary sewage treatment plant to account for the increase of manpower required on site. The number of people during the shutdown was double the normal occupancy and trucking the excess sewage off site was not a practical option. MAK Water was engaged to deliver a modular Activated Sludge Bioreactor (ASBR) to treat 150 m3/day of domestic strength sewage to Class C.

Activated Sludge Bioreactor Plus

Queensland

Gas Processing Hub

Oil and Gas

A remote natural gas, condensate and oil processing facility in north-west Western Australia had an ageing sewage treatment plant (STP) requiring replacement, the operator contacted MAK Water. We took our client through a thorough engineering design process where we had to account for the challenges of the extreme remote location, 20-year design life in a cyclone-prone, corrosive marine environment (AS4312, Category 5), and compliance with our client’s exacting engineering standards and specifications MAK Water manufactured, commissioned and continues to visit the sewage treatment plant monthly to keep the plant operating optimally.

Activated Sludge Bioreactor Plus

Western Australia

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