Vermifilter technogy for industrial waste water treatment - question about substrate

  • Arthur
  • Arthur's Avatar
    Topic Author
  • Environmental engineer, industrial waste water treatment, water resources management
  • Posts: 2
  • Likes received: 0

water quality

I am working with vermifilter technogy for industrial waste water treatment. I have a specific problems with the subtrate or compost whre the earthworms live. When the water is running through the substrate filter it dilutes high quatities of the soil composition and the final result is a water with high concentration of disolved solids. Although other water quatity parameters are very fine more than 70% removal, like COD, BOD5.
I would appreciate if someone would give some advise or idea of what kind of sustrate or vermicast can I use. I mean a substrate where the earthworms can live and at the same time obtain the hydraulic retention time needed for adecuate water treatment. In orther words I would need an adecuate substrate to avoid the dilution of soil particles into the treated water.
You need to login to reply
  • goeco
  • goeco's Avatar
  • Self employed innovator with an interest in wastewater treatment systems and recycling of nutrients
  • Posts: 260
  • Karma: 7
  • Likes received: 142

Re: water quality

Hi Arthur, what exactly is the substrate you are using? Could you also describe what kind of industrial wastewater you are treating?
cheers
Dean

Dean Satchell, M For. Sc.
Vermifilter.com
www.vermifilter.com
You need to login to reply
  • Arthur
  • Arthur's Avatar
    Topic Author
  • Environmental engineer, industrial waste water treatment, water resources management
  • Posts: 2
  • Likes received: 0

Re: water quality

Hi Dean,

Thank you for the post, regarding the soil subtrate I'm using is a pine residues decomposed with bacteria and stabilised, has a dark brown color. The waste water comes from a cosmetic industry; the washing containers from shampoo, body cream, cologne, etc.
The color after treatment has a yellowish color that comes from the dilution of soil subtrate.
The solution to the problem is to find the right substrate wich avoid dilution of substrate and at the same time gives the enough hidraulic retention time in order to allow the earthworms to work.
Regards
You need to login to reply
  • fppirco
  • fppirco's Avatar
  • Posts: 73
  • Likes received: 16

Re: water quality

Hi Arthur
I think in the bioremediation process as wastewater technology, use of vermiculture or bacteria, something is crucial. To what extent bioagent present in the substrate (Matrix) could tolerate environment variations, particularly PH and temperature? Sudden shock or immediate sever change certainly devaste bio ecosystem as main system player if you enter cosmetic residues you must be sure of PH and Temperature and I guess for washing cream preparation machines you may use acid or base (NaOH) as cleaners. These are very lethal for microorganisms such as worm or bacteria completely different from BOD and COD criteria. This is my deduction but I am sure experienced researchers present in this forum will express their comments.

Thank you
Mohammad

Researcher and consultant
You need to login to reply
Share this thread:
Recently active users. Who else has been active?
Time to create page: 0.939 seconds