Subscribe to our free weekly newsletter
Send news

News tags

mental health  physical activity  earthquake  vacancies  families  public health  children  funding  poverty  health determinants  social  Community development  planning  employment  healthy cities  volunteers  newsletter  youth  volunteering  nutrition  employment opportunity  housing  alcohol and drugs  maori  community engagement  rebuilding  wellbeing  disabilities  Lectures  counselling  Training  earthquake recovery  sustainability  event  community gardens  Community  seminar  Awards  stress  Community Groups  mens health  research  arts  smokefree  culture  men  exercise  migrants  community event  education  environment  resilience  human rights  health  medical  business  sport  conferences  survey  mental wellbeing  Courses  obesity  elderly  support group  environmental health  healthy food  health promotion  violence  pacific health  resources  rebuild  women  race relations  meeting  gardens  workshop  services  leadership  forum  water  disabled  repair  transport  prevention  pacific  dance  fundraising  asian health  sexual health  inequality  cancer  support  disasters  development  mindfulness  dementia  presentation  collaboration  health in all policies  data analysis  recovery  smoking  law  drugs and alcohol  technology  safety  cycling  Sleep  policy  parenting  media  hearing  walking  land  neighbours  social justice  qualification  resilient cities  information  community connection  consultation  oral health  bullying  depression  youth empowerment  young people  activities  non-profit  charity  harm  NURSES  addiction  disease  Communication  alcohol  symposium  submission  anxiety  accessibility  Relationships  eating  economics  Advocacy  eLearning  falls  parking  energy  efficiency  heating  insulation  advice  Eating Disorders  abuse  waste  Matariki  webinar  diabetes  workplace  Film  Climate Change  solutions  urban  management  economy  plan  restoration  Report  Vulnerability  welfare  parks  learning  awareness  emergencies  legislation  injury prevention  reading  Meeting Room  conservation  language  refugees  recreation  built environment  data  venue  urban design  Food  older people  finances  suicide  heritage  gender  recycling  breastfeeding  public  identity  Nursing  submissions  Rainbow  biodiversity  campaign  promotion  Gut Health  diversity  therapy  older adults  sexuality  computing  pollution  School Holidays  Arts Therapy  providers  gambling  Maori health  Cervical cancer  screening  trauma  autism  Governance  treaty of waitangi  care  mentoring  pets  relaxation  Professional Development  pornography  exhibition  history  discrimination  vaping  equity  lockdown  grief  rural  hygiene  participation  tourism  summer  intervention  warning  podcast  science  petition  swimming  roadworks  traffic  wildlife  beaches  pools  immunisation  vaccination  brain  preparation  open day  market  evaluation  noise  music  property  testing  crafts 

Council working to reduce smell from fire-damaged plant

Thursday, November 4, 2021   Posted in: Signatory Notice Board By: Administrator With tags: waste, services, environmental health

Christchurch City Council Newsline: 4th November 2021

Christchurch City Council is working to install a sprinkler system over the smouldering trickling filters at the fire-damaged wastewater treatment plant to help extinguish hot spots and reduce the smell.

“We are aware there are some odour issues around the plant because the plastic media housed within two trickling filters has partially melted and is giving off an acrid smell," says Council Head of Three Waters and Waste Helen Beaumont.

“We hope to reduce the smell by putting a constant stream of water through the trickling filters so we are working through options for installing sprinklers over the structures."

Ms Beaumont says while it obvious that the roof structure and the wastewater distribution system for the trickling filters have been destroyed, it is not yet clear how much of the plastic media housed within the filters has been damaged.

It is also not yet known whether the concrete housing has been structurally compromised, although external inspections indicate there is no immediate risk of collapse.

“To undertake a full internal inspection we will need to gain access to the interior of the trickling filters and remove most, if not all, of the material inside. This is going to a challenging logistical exercise," Ms Beaumont says.

“There are still hot spots deeper within the filter media – it is about six metres deep. We are assessing options for gaining access so we can do a full inspection once the material has cooled sufficiently for us to safely enter."

Preliminary testing of the debris from the fire indicates that none of the material contains asbestos.

Ms Beaumont says while people can still use their toilets, bathrooms and kitchens as usual, the loss of the trickling filters at the wastewater plant is impacting on the wastewater treatment process.

“We are modifying the treatment process so that we can bypass the filters, however, doing that will impact on the quality of the effluent discharge. We have assured Environment Canterbury that we will make every effort to comply with the conditions of our discharge consents and that we will liaise with their compliance monitoring officers during the recovery effort."

Ms Beaumont says it takes about 20 days for the wastewater that is piped into the plant to pass through the treatment process and to get discharged via the ocean outfall. As such it will be some time before any changes in the quality of the discharge becomes evident.

“An adaptive management plan is being worked on with the objective of ensuring the best possible outcome with respect to the quality of the effluent discharge within the practical constraints of the plant," Ms Beaumont says.