The stationary vacuum systems handles waste and recyclable materials. Replacing old-fashioned refuse rooms and bins with underground vacuum technology eliminates the typical problems associated with waste including unpleasant odours and unsightly bins. Also, as the system is underground, nobody needs to come into contact with waste bags or containers.
This is how it works
Users throw their waste into ordinary, readily accessible inlets, which can either be indoors or outside. Here, the bags are stored temporarily above a closed storage valve. All full inlets are then emptied at regular intervals. Automatic emptying is governed by a control system in the waste collection station, which is located on the outskirts of the development it serves and linked to the inlets via a network of underground pipes.
When the control system senses that it is time to empty the inlets, Envac’s fan system is initiated and a vacuum is created in the pipe network. A supply air valve is opened in order to allow air into the pipe system to transport waste from the inlets to the waste collection station. The storage valves beneath the inlets are then opened one by one. The waste bags fall down into the underground network and are sucked away to the waste collection station at speeds of up to 70kph and over distances as long as 2km from the waste inlets.
2) Collection station
Waste at the collection station is sucked through a cyclone, where it is separated from the transport air. It then falls down into a compressor where it is compressed and fed into a sealed container. The transport air is released via a flue after having passed through a series of cleaning filters and silencers.
The inlets can be customised to suit an individual development or streetscape and placed on every floor indoors, in the doorway, at street level or even outdoors. They can be wall-mounted or freestanding, both indoors and out.
Envac can be adapted to suit each individual project depending on the development’s design and requirements. Extending the system to adjacent properties, areas or entire districts is straightforward as new pipework can be added on to the existing underground infrastructure. This system can be installed into large-scale new commercial and residential developments as well as being retrofitted into existing buildings and developments. It can also be integrated into individual properties and rows of terraces.
The Envac solution is a long-term investment with significant financial and environmental advantages. It makes areas considerably cleaner, reduces carbon emissions and increases the sustainability credentials of the environments in which it operates.
No need for collection vehicles
As there is no longer any need to manually empty bins, waste collection vehicles no longer need to make frequent visits to the area. This reduces the amount of heavily polluting waste collection vehicles on the roads whilst creating a safer environment for residents. Resource traditionally associated with manually emptying bins can be reallocated and waste collection cycles can be made more regularly - and for less cost.
Hygiene is considerably improved for people in the area and for waste collection operatives, who no longer need to come into contact with the waste. As the system is hermetically sealed, the litter will not attract pests or insects or release unpleasant odours.
Lower operation and maintenance costs
The initial cost of the investment is offset by lower operation and maintenance costs.