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Blackwater Recycling System

Verified by manufacturer 2 months ago

Aquacell Ltd

A blackwater recycling system.

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Application

The Aquacell S Series can be incorporated into residential apartment buildings, commercial office towers and more.

The Aquacell S Series provides a simple modular solution for on site blackwater recycling. The system features a controlled, robust and comprehensive treatment process that combines physical, microbiological and oxidative treatments in one package.

The treated blackwater can then be reused for non-drinking applications such as toilet flushing, cooling towers, irrigation and more.

Description

Blackwater is any wastewater that is contaminated with water discharged from a toilet. Compared to greywater recycling, it’s usually easier to recycle blackwater because most plumbing systems don’t separate greywater streams, e.g. showers and basins. Aquacell’s S Series blackwater systems can be retrofitted to existing buildings or installed in new developments without having to deal with complex dual plumbing setups.


Features and benefits:

  • Aquacell blackwater systems simply and efficiently help you re-use your water. 
  • Once your system is installed, you’ll have instant access to a never-ending supply of recycled water for all your non-drinking needs.

General information

Finish

Other

Material

Other

Shape

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Other

Uniclass

Ss_55_70_97_08 Black water reclamation systemsPrimary

Specification data - Black water reclamation systems

Description

Blackwater recycling system with ancillary disinfection, colour removal and reverse osmosis/ozonation.

System performance

-

Manufacturer guidance

Insert design parameters including, e.g. sources, end uses and storage volume.

System manufacturer

Aquacell.

System reference

Aquacell S Series.

Standards

To BS 12056-2:2000 and BS 8558:2015.

System completion

Testing and setting to work: Commissioning of the plant to CIBSE standards. Performance testing of the plant via laboratory analysis in accordance with issued approval.
Documentation: Operation and maintenance manual.
Servicing and maintenance: Undertake for 12 months after completion.

Manufacturer guidance

The operation and maintenance manual includes as a minimum:

  • Operator responsibilities and duties.
  • Records system.
  • Sampling and testing.
  • Workplace health and safety.
  • Utilities details.
  • Electrical systems.
  • Process description, operation and control.
  • Residuals management.
  • Maintenance - service visits, frequency and tasks.
  • Phone assistance and support.


Pipes

Collection and distribution pipelines: Supplied by others.

BackflowPreventerType

Supplied by others.

Collection tank

Pump station and blackwater buffer tank.

Manufacturer guidance

Untreated blackwater will gravitate along the dedicated collection network to a pump station which will be located on the basement level, from here it will then be pumped on demand into a buffer tank.

The tank material is subject to project specifications. Consult manufacturer for details.

Pump

Submersible pumps.

Manufacturer guidance

Pumps within the buffer tank will transfer screened wastewater to the Aquacell blackwater treatment system located in the basement of the building.

Filter

Coarse (buffer tank): Screen filter.
Fine (membrane tank): Hollow-fibre ultrafiltration membrane with pulse air scour clean-in-place system.

Manufacturer guidance

Ultrafiltration membrane:

  • Minimum nominal pore size of 0.05 μm.
  • Air-scour using fine bubble diffusers is not permissible.
  • The use of flat-sheet membranes is not permissible.

WaterFilterType

Reverse osmosis membranes and calcite filter.

Ozonation system and biologically activated carbon (BAC) filter.

Manufacturer guidance

  • Reverse osmosis membranes are used for the control of TDS in the water stream followed by conditioning of the water via a calcite filter. The RO unit provides a second barrier to pathogens.
  • Or, an ozonation system uses advanced oxidation to remove residual contaminants in the water stream, followed by a biologically activated carbon (BAC) filter to remove residual inorganics from the water stream. 

Biological

Anoxic and aerobic biological treatment.

Manufacturer guidance

Air is diffused into the wastewater to create aerobic conditions where a biomass will grow in both aerobic and anoxic zones.

Identification

Pipework: Colour-coded and labelled to BS 1710.
Recycled water meter and tap handles: Coloured and/ or appropriately labelled.

Manufacturer guidance

  • Signs indicating the use of recycled (non-potable) water are mandatory.
  • Pipes will be colour coded in accordance with local Plumbing Codes.
  • Appropriate safety signs near the location of the treatment system are mandatory.
  • All recycled water taps should have a warning sign – “Not for Drinking”. 

Controls

Motor control centre and programmable automation controller.

Manufacturer guidance

A touch screen on the face of the panel provides a visible display of plant status, motor manual/off/auto, critical control point status. The plant operates via the touchscreen interface without remote operation in the event of communications failure.

Disinfecting

Ultraviolet (UV) radiation system to US EPA standards with UVT monitor and chlorination system.

Manufacturer guidance

Alarms in the UV system (lamp needing clean, lamp deterioration, lamp end of life, reduced UV transmissivity) are detected by the photo intensity monitor, which transmits information to the remote monitoring system. This ensures appropriate UV dose at all times.  

Monitoring

Remote monitoring and data acquisition system.

Guidance for specification option:

The plant monitors the following parameters and uses controls to ensure reliable and safe recycled water supply is available at all times:

  • Buffer and MBR tank levels via analogue level sensors.
  • Recycled water storage tank level via analogue sensors.
  • High-level alarms.
  • Flow.
  • Level sensors.
  • Pumps on/off.
  • Blowers on/off.
  • Filtration.
  • Aeration cycle.
  • UV reactor on/off, lamp alarms, UVI and UVT.
  • Online DOx monitoring.
  • Online turbidity monitoring.
  • Online pH monitoring of influent and treated water.
  • Online free chlorine monitoring.
  • Online conductivity monitoring.

Manufacturer guidance

To monitor all process variables and critical control points. Includes ethernet-based human interface with real-time remote operation and control via web-connected PC, trending and alarming function systems via email. 

Mounting

304 stainless steel skids.

Storage

Treated water storage tank.

Manufacturer guidance

The tank material is subject to project specifications. Consult manufacturer for details.

Ventilation

Vent to stack (supplied by others).

Odour control mechanical ventilation (supplied by others).

Sustainability data

Contains Red List materials

Yes

Country of material origin

Australia

Country of product manufacture

Australia

Material

Other

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

-

Manufacturer guidance

As a bespoke system, this can be provided as an indication during the design process.

Recyclability

-

Manufacturer guidance

Major items including stainless steel, LDPE, HDPE etc. can be recycled at end-of-life. Some components are unable to be recycled at the end-of-life. The percentages vary depending on system sizes and design requirements.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

-

Manufacturer guidance

>20%

Expected Life

25 year

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