Treating Cake Factory Wastewater?

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For designing a package to treat cake factory's wastewater about 100 m3/d  with CoD = 4000 mg/l, which process do you suggest and you think how much air needs to biological treatment?

Thank you for the comments in advance.

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5 Answers

  1. Anaerobic digestion then aerobic activated sludge. You need to contact a consulting engineering firm for design considerations. This type of wastewater has many wastewater plants in service so there is a large body of experience among many engineering firms.

  2. The type of system that would be best for you really depends on:

    Do you want to be able to re-use the water?

    Do you want a dry waste and the cleaned water?

    Do you want to keep buying chemicals for the process?

    The space you have available for the equipment/plant.

    Your budget?

    We have equipment that will clean the waste water and make it re-usable and any solids that remain will be a dry granular waste. Yes you will need to buy chemicals but the machines are very efficient. Our equipment has a small footprint and use very little energy.

    We can only tell you what the costs would be once we have analysed the waste water and proven that we can do what we say.

    A brief description of the equipment is on www.gictechs.com

  3. More info would be required, but I would say at COD's of 4000mg/l one should consider anaerobic pre-treatment. On the positive side sludge production as well as energy requirements will be considerably less following an anaerobic treatment step. On the negative side complexity and capital investment could be more. An evaluation of the total system would be the only way to get a good indication of the best route. 

  5. Waste water can have chemicals in it så a MBR system with aluminium can help

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