Hi,
Has anybody tried using small algae scrubber for purifying industrial wastewater?
Regards,
Sunny
Hi,
Has anybody tried using small algae scrubber for purifying industrial wastewater?
Regards,
Sunny
Welcome from India,
Do you mean take an aquarium scrubber and put in on wastewater, or take a wastewater scrubber and put in on an aquarium?
Well, I am shareholder of a small/medium bulk drug factory which has a problem of waste water with high chemical oxygen demand (cod).
can somebody suggest how I can grow the useful algae (Chlorella Vulgaris or Scendesmus Sp.) and reduce COD at an acceptable level?
I am open to any suggestion (preferably those that are tried and tested)
You are thinking of micro algae, and that would probably mean no harvesting, unless you had expensive flocculation or centrifuge techniques used by the biofuel people.
Instead I think you would want macro algae, meaning seaweed, like we all grow in our scrubbers. "Seaweed" can be freshwater too, because saying "lake weed" is a bit strange.
Yes they are established and tested. One source for ideas is www.Hydromentia.com, but they have to be built above the ground so the water can flow downwards. The other option is air-bubble upflow, which would go in your treatment ponds; it does not require additional space, but would still need to have a harvesting mechanism built.
Neither option is ready to use; they both are built from scratch.
Thanks for the reply. We have decent laboratory which can do flocculation (is Chitosan the preferred material?) & use a centrifuge. We do not know easy way of immobilization and a system allowing the waste water to flow over the immobilized algae. We may build one but it means trial and error which we would rather avoid.
That's the problem with micro... harvesting. Why not just go macro and make it easy.
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