Making the Wastewater Treatment Plant less stinky
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.
A reminder this hunting season
As thousands of hunters are making their plans for autumn – the Roar – recreational firearms groups are urging hunters to always be 100% sure of their targets.
Te Tari Pureke - Firearms Safety Authority NZ, which chairs the Recreational Firearms Users Group, has begun a public information campaign reminding hunters everywhere of Rule #4 of the Firearms Safety Code: to identify their target beyond all doubt.
Director Communities and Corporate, Mike McIlraith, says there is an estimated 50,000-60,000 New Zealanders involved in big game animal hunting each year, and the Roar is the key event for many hunters each year.
“The Roar is a fantastic time of year for hunters to get out into the hills after a trophy animal but hunting safely and making sure everyone gets home in one piece, still must be the most important goal of every trip,” says Mike McIlraith.
“The consequences of not fully identifying your target beyond all doubt can be catastrophic. Our message to hunters is a really simple one: If you are not sure, then don’t shoot.”
Mike McIlraith says while hunting fatalities are thankfully rare, research has shown that misidentification of the target is the largest firearms related risk to New Zealand deer hunters, and 80% of the time this involves members of the same hunting group.
The Authority says hunters should not feel pressured to take a shot: “Instead, hunters should take the time to analyse their target, wait and see if it is a hind or stag, how old is the animal, how many points does its antlers have? Identifying your target means never firing at sound, shape, colour or movement alone.”
Mike McIlraith says good hunters will slow down, and run through some simple mental checks:
- Can I see the whole animal, or could this be another hunter?
- Where are my hunting companions – could this be them or someone else?
- How much of the animal can you see, if it is a hind or stag, how old is the animal, how - many points does its antlers have?
“Taking a little extra time to identify your target and check the firing zone is the key to safer hunting. No meat or no trophy is better than no mate,” he says.
Poll: Does a savoury scone require cheese on top, or folded inside?
Help settle the great kiwi debate ... cheese on top, or folded inside?
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76.5% Inside!
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23.5% On top!
Don't overthink this riddle...
I have a silver sole
but no feet,
I make my living by bringing the heat.
What am I?
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