That is really a loaded ...

 That is really a loaded question. You have everything from designs for anaerobic and aerobic secondary waste treatment, then you have to think about what you have coming in in order to choose the best technology for either anaerobic or aerobic or both. For someone to say that there’s a best technology one-size-fits-all, is either selling  that technology, or they simply don’t understand the ramifications of choosing the wrong technology. I will say is that what you do upstream in your primary treatment is going to dictate heavily on what you can do downstream both economically and efficiently to meet your permit. In other words, do not skimp on the primary treatment because that will dictate the longevity and the likelihood of success In your secondary waste treatment. Then you want to consider if you need tertiary treatment.  I mean what is the water going to be used for after treatment simply discharged or is it going to be reused and I want passion is it going to be reused. Does your permit allow for TKN  versus ammonia?  How much of your COD is BOD and does it fluctuate? Do I have any hydraulic problems or organic loading problems?  This again goes back to primary treatment which would include your equalization basins.  Since the name of the game and waste water is steady, when you have a lot of EQ upfront it helps so much downstream. Thoughts on this are in list so I hope you can take a look at your influential  and assess it for proper design of all the systems.  This is not an easy task and is industry dependent for sure.  There are several modeling programs out there, that I would suggest that you invest in if you really are going to resign entire waste treatment system. And as always money, efficiency, maintenance, longevity and cost factor in.  Some of these more sophisticated modeling programs tell you all the economics as well, including yearly spend, ROI, life cycle economy, etc.  You have a lot of variables and this is no easy task so good luck to you. Please let me know if you have any questions and I’ll try and steer you in the right direction. Best, Sean.  239-989-3581