Environmental impact of dialysis water use

Jason Wei, MBBS, DipNeph

Clinical Renal Physiologist (CPRB, NZBDP) Technical Advisor, Haemodialysis Service, Renal Dept. Auckland City Hospital

The 2018 edition of the United Nations World Water Development Report stated that nearly 6 billion peoples will suffer from clean water scarcity by 2050. This is the result of increasing demand for water, reduction of water resources, and increasing pollution of water, driven by dramatic population and economic growth. On top of this due to the climate changes which makes things worsen. Nephrology, especially in the dialysis setting, has significant negative environmental impact worldwide, as it uses large amounts of water and energy and generates thousands of tons of waste.

( A call-to-action for sustainability in dialysis in Brazil, José A. Moura-Neto1,Katherine Barraclough2,3, John W. M. Agar4. DOI: 10.1590/2175-8239-JBN-2019-0014), the more dialysis water we use and waste,  the more energy we will use and more CO2 emission will be produced. Typically dialysis unit waste about 30 to 50 % of the incoming water as rejected water which can be reused by proper designed system, it will reduce the environment impact  by doing so, the extra KPI on dialysis water use / treatment hr.  HD may be needed to look at environment impact of dialysis water use.


Dr Jason Wei, Senior Clinical Renal Physiologist (CPRB, ANZSRDP) Technical Advisor, Haemodialysis Service, Renal Dept. Auckland City Hospital, ADHB NZ Jason Graduated from Shanghai Second Medical University in 1985 worked in one of teaching hospitals from same medical school from 1985 to 1995 as a resident to nephrologist.  From 1995 to 1997 he Studied at University of Auckland in Physiology then from 1997 to now he has been working as a Certified Clinical Renal Physiologist at Haemodialysis service Renal Dept. Auckland City Hospital, especially is interested in Continue Quality Improvement for haemodialysis, from technical to clinical, he is a Certified Lean Six Sigma Practitioner, an international advisor to Shanghai Quality Control Centre for haemodialysis and a Committee member of World Association of Chinese Nephrologists (WACN) Also Jason, as a Green Nephrology Action Team member from ANZSN, is interested in how to make dialysis greener under this climate crisis situation.  He has been covering from haemodialysis monthly report, renal information system, CVC database, renal Score card since 2002. have been a guest speaker and presenter for National (NZBDP, RSA ,HiNZ and international (ISHD, OCN, AKI-CRRT, Shanghai HD Quality control Training Course and World Integrative Medicine Congress) conferences, regularly doing teaching sessions for clinical physiologists training course from MIT/ ADHB NZ.


Dr Matthew Sypek graduated from the University of Adelaide and undertook advanced training in adult nephrology (FRACP) in Melbourne at The Alfred Hospital and Monash Medical Centre, and in the UK at Oxford University NHS Trust. He completed additional post-fellowship training in paediatric nephrology at the Royal Children’s Hospital Melbourne and continues to practice in both adult and paediatric settings.  Matthew commenced a PhD through the University of Melbourne in 2016 examining immunological factors in kidney transplant allocation. Since 2017 he has also held the position of Epidemiology Fellow at the Australia and New Zealand Dialysis and Transplant Registry (ANZDATA). His areas of interest include renal transplantation, organ allocation, epidemiology, transitional care and environmental sustainability.


The ASM is hosted by Australian and New Zealand Society of Nephrology.

The aims of the Society are to promote and support the study of the kidney and urinary tract in health and disease, and to ensure the highest professional standards for the practice of nephrology in Australia and New Zealand.

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