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187 days ago

Making the Wastewater Treatment Plant less stinky

The Team from Whangarei District Council

Can you smell the wastewater treatment plant on Kioreroa Road? 🐷

We've got a plan to make it less smelly: covers and odour treatment systems (bio filters) will be installed around the four stinkiest parts of the plant between now and September 2025. What are those 4 parts? Buckle up.

💩 1: the inlet works (where the untreated sewage comes in for treating), screenings bin (where the lumps go, including old barbie dolls and false teeth)

😷 2: the sludge thickener tanks (that reduce the water in the sludge prior to disposal)

🟫 3: the sludge holding tanks (exactly what they sound like)

🐌🐌 4. the snail bin. The water treatment plant has four large trickling filters - large round bins filled with granite rock. The wastewater trickles over the rocks and the algae growing on them. The algae take massive amounts of nutrients out of the wastewater and clean it up. It’s a very robust and natural process, accelerated by engineering and technology.

The algae attract small snails (3mm), which just love the environment in the trickling filter – it is wet and full of food. The snails grow there by the billions. Every now and then, a few snails are swept out with the wastewater and are filtered out before the water goes to further cleaning.

Those “few snails” however, add up to 2-3 cubic metres per week. We put them in our snail bin and empty it weekly. However, this is long enough for it to over-power all the other smells in the wastewater treatment plant.

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More messages from your neighbours
3 hours ago

Poll: When should the tree go up? 🎄

The Team from Neighbourly.co.nz

From what we've heard, some Christmas trees are already being assembled and decorated.

What are your thoughts on the best time to get your Christmas tree up?

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When should the tree go up? 🎄
  • 3.6% Second half of November
    3.6% Complete
  • 32.9% 1st December
    32.9% Complete
  • 23.6% A week before Christmas
    23.6% Complete
  • 37.1% Whenever you wish
    37.1% Complete
  • 2.9% Other - I'll share below
    2.9% Complete
140 votes
13 hours ago

Riddle Me This, Neighbours! Bet You Can’t Guess It!

Riddler from The Neighbourly Riddler

Sometimes narrow, sometimes wide, wind or rain, I stay outside.
Even if there’s heat or snow, from house to house I will still go.
What am I?

Do you think you know the answer to our daily riddle? Don't spoil it for your neighbours! Simply 'Like' this post and we'll post the answer in the comments below at 2pm.

Want to stop seeing riddles in your newsfeed?
Head here and hover on the Following button on the top right of the page (and it will show Unfollow) and then click it. If it is giving you the option to Follow, then you've successfully unfollowed the Riddles page.

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J
2 hours ago

Garage & Estate Sale - this Sunday 24th November 10 am - 3 pm Maungakarmea Community Hall

Jill from Central Whangarei

Raising funds to upgrade K9 Luva Dog Training & Rehabilitation

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