17
Oct 2024
City of Sydney to Repurpose Runoff from Hospital's Dialysis Water Purification System for Street Cleaning
Published in General on October 17, 2024
 
                                                            City of Sydney street washers will use runoff from the intensive water purification process for dialysis machines at Royal Prince Alfred Hospital. The hospital reports that purifying water for dialysis results in 25 litres of wastewater per minute.
Typically, street cleaners rely on drinking water or water collected from stormwater recovery systems. This initiative aims to reduce water waste by repurposing the runoff for street cleaning, offering a more sustainable alternative.
To reduce its reliance on drinking water for street cleaning, the City of Sydney has turned to an unusual water source—runoff from the water filtration process for kidney dialysis machines at Royal Prince Alfred Hospital. This initiative is expected to save approximately 1.5 million litres of water annually.
Dialysis requires "ultra-pure" bacteria-free water, but around 25% of the drinking water used in the purification process is wasted. A single patient uses 500 litres over 14 hours during a typical dialysis session. With about 50 machines, Royal Prince Alfred is one of the largest dialysis centres in New South Wales.
Now, this previously wasted water is being collected and repurposed for street washing, offering a sustainable solution for the city.
Professor Steve Chadban from Royal Prince Alfred Hospital notes that as much as 25 litres of water per minute is wasted during the purification process for dialysis machines.
"That's a significant amount of water," Professor Chadban remarked.
The City of Sydney has implemented an innovative initiative to repurpose the wastewater from the purification process used for dialysis machines at Royal Prince Alfred Hospital. By collecting and utilizing this water, the city aims to reduce its dependence on traditional drinking water sources for street cleaning, saving approximately 1.5 million litres annually.
This approach optimizes the use of hospital resources and contributes to environmental sustainability by decreasing the volume of treated water discharged into the environment.
Street cleaners typically rely on drinking water or the city's stormwater harvesting schemes for their work. However, according to City of Sydney Lord Mayor Clover Moore, after passing through the purification system, the water has low levels of calcium and magnesium, making it suitable for street cleaning.
In addition to its innovative water management practices, Hospital stays offers accommodation options for patients and their families. They provide facilities to ensure patients undergoing treatment have convenient access to medical care while staying close to their support network. These accommodations are designed to enhance the comfort and well-being of patients, making their healthcare experience more manageable during their stay.
 
                                                                                     
                                                                                     
                                                                                     
                                                                                     
                                                                                     
                                                                                     
                                                                                     
                                                                                    ![“Surprise Noises Can Feel Like Pain”: New Airport Rule Eases Travel for Autistic Passengers Emma Beardsley once dreaded going through airport security. “I used to panic every time they made me take my headphones off at security,” she recalls. “The noise and the unpredictability can be overwhelming.” Now, thanks to a new policy allowing noise-cancelling headphones to remain on during security checks, Beardsley says she can “travel more confidently and safely.”
In Australia, one in four people lives with a disability, yet the travel system has often failed to accommodate varied needs. Autism-inclusion advocates at Aspect Autism Friendly have welcomed the government’s updated guidelines that let autistic travellers keep their noise-reducing headphones on during screening, calling it a “major step” toward more accessible air travel.
Dr Tom Tutton, head of Aspect Autism Friendly, emphasises the significance of travel in people’s lives: it connects them with family, supports work and learning, and offers new experiences. But he notes the typical airport environment can be especially intense for autistic travellers:
“Airports are busy, noisy, random and quite confusing places … you’ve got renovations, food courts, blenders, coffee grinders, trolleys clattering … and constant security announcements. It’s really, really overwhelming.”
“What might be an irritation for me is something that would absolutely destroy my colleague [who has autism]. Surprise noises of a certain tone or volume can genuinely be experienced as painful.”
Under the new policy — now published on the Australian Government’s Department of Home Affairs website — passengers who rely on noise-cancelling headphones as a disability support may request to wear them through body scanners. The headphones may undergo secondary inspection instead of being forcibly removed.
Dr Tutton describes this adjustment as small in procedure but huge in impact: it removes a key point of sensory distress at a critical moment in the journey. Aspect Autism Friendly is collaborating with airports to ensure that all security staff are informed of the change.
For many autistic travellers, headphones aren’t just optional — they are essential to navigating loud, unpredictable environments. Until now, being required to remove them during security has caused distress or even deterred travel.
Aspect Autism Friendly also works directly with airports, offering staff training, autism-friendly audits, visual stories, sensory maps, and other accommodations. Their prior collaborations include autism-friendly initiatives with Qantas. Dr Tutton notes:
“Airports have become this big focus for us of trying to make that little bit of travel easier and better.”
He advises people planning trips for travellers with disabilities to consult airport websites ahead of time. Some airports already offer quiet rooms or sensory zones — Adelaide, for instance, provides spaces where travellers can step away from the noise and regroup before boarding.
Beyond helping autistic individuals, Dr Tutton believes that more accessible airports benefit everyone. “These supports help lots of other people too,” he says. “When people are more patient, kind and supportive, the benefits flow to everyone. We all prefer environments that are well-structured, sensory-friendly, predictable and easy to navigate.”](https://c3eeedc15c0611d84c18-6d9497f165d09befa49b878e755ba3c4.ssl.cf4.rackcdn.com/photos/blogs/article-1061-1759742013.jpg) 
                                                                                    