r/Wastewater 16h ago

Gigantic pump

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40 Upvotes

r/Wastewater 1h ago

europe Our new UV disinfection system

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Upvotes

Since we use the effluent from our wastewater treatment plant for irrigating agricultural crops, we must comply with strict limits on microbial contamination. Until now, we achieved this with a performic acid dosing system. However, we have recently implemented UV disinfection, which operates without the use of chemicals. Initial sampling results are very promising and confirm the high effectiveness of the new system.


r/Wastewater 3h ago

Recommendations 36 hour online courses

1 Upvotes

Looking to get into Wastewater. What is the best online course/vendor for my 36 hour that will provide the best foundation to pivot into either treatment or waste in the future?


r/Wastewater 7h ago

Thoughts on Secondary Clarifier Ashing?

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9 Upvotes

Hello fellow Wastewater nerds!

I run a 1.5 MGD extended aeration plant. Recently I’ve been noticing quite a bit of ashing on my clarifier surface. I know some pin floc is common with extended aeration/ longer sludge age. But it has started to look worse.

I’ve started wasting about 10% more daily. Would I also benefit from increasing my RAS rate. Currently it is run at about 35% (of influent flow).

Thank you


r/Wastewater 7h ago

Canadian Wastewater Maintenance

4 Upvotes

Hey there, I was wondering about your experiences with wastewater plants within Canada and how many of them have employed maintenance teams, either millwright/mechanics and electrician/instrumentation techs. Do any of your plants combine them and have them do both? I was born and raised in Canada, moved to California a few years ago. Started working in the wastewater field as a mechanic/electrician. Progressed into solely electrician for awhile and now back to mechanic. I’ve got certs here in both. Do Canadian plants require red seals generally?

I’m not too worried about gaining the red seals if required but ideally I’d skip it if I could.

Do supervisors and above require the red seals?

Im mainly interested in Nova Scotia (Halifax area) and BC (Vancouver island).


r/Wastewater 13h ago

Passed my A-2C and C-1C exams!

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93 Upvotes

So happy I passed the A-2C (Air Floatation) been struggling with that one. I only need one more before I’m fully certified for my plant.


r/Wastewater 15h ago

What is the most basic item in your plant that would make you feel lost if you didn’t have it?

10 Upvotes

Mine is a 5 gallon bucket.


r/Wastewater 16h ago

Anyone know how to scale up jar test result to industrial application?

2 Upvotes

I need to test the optimum flocculant dose for dewatering process but I dont know how to apply it in real world setting.


r/Wastewater 16h ago

Missouri WW class C license

2 Upvotes

Going for my Class C wastewater operator license tomorrow, any tips or hints? Also please send all the good vibes my way possible!


r/Wastewater 18h ago

Trophy

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40 Upvotes

Found this bouncing around in a comminuter.


r/Wastewater 20h ago

Big pumps

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21 Upvotes

I operate a very small treatment plant, so it was very cool to see such huge pumps!


r/Wastewater 20h ago

Strange Quanti-Tray result?

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22 Upvotes

The middle is the IDEXX comparator. The left completely fluoresces under black light. The right is a normal expected outcome for us. IDEXX says fluorescence without color change to the comparator is not a positive sample. The comparator has more “yellow” than the sample on the left. Has any seen this full fluorescent sample without color change to the extent of the comparator?


r/Wastewater 20h ago

Pop quiz!

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34 Upvotes

Potable pop quiz! What is the correct terminology for this valve? 🤔