So far #17 has the most potential. I do like the recycled symbol as well but #17 hits pretty close to home. Can you also try a couple different versions of this logo? try changing out the O in Bottle as well as incorporating different colors as well.
Can you make a logo using the symbol you already made with #15 and #16 but put the symbol to the left of the name, and also try having three different colors for the bottles (brown, green, blue). And also use the font from #17