WEF Discussion Forums
Operation and Maintenance
There is no problem is using recycled HDPE, recycled media gives the same material integrity as virgin and aside from reducing the project cost it also reduce the environmental footprint of the project.
As your supplier correctly mentioned, there are many MBBR projects done around the world with recycled media with no problems with it.
To summarize, recyceld media will give you the same quality with a greener aproach to your project.
From a process standpoint, the color of raw media should not affect MBBR performance. The key parameters are specific gravity, specific surface area, and longevity of the media. If the vendor meets and guarantees these three parameters, you should be ok.
Vikram M Pattarkine, PhD
CEO / Principal (Partner)