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Hello All,
This is my first post here, I am chemical engineering student...and I am choosing my Idea for the graduation project.

the point is that I would like to choose something that is applicable on a small scale to be able to apply and use it commercially after graduation or even during my last college year.
I am thinking of extracting the whey protien from "whey waste" produced in milk industries.

Would someone help me with estimation of how much might it cost, is it comercially effective, and is there any online resources that might help me with the process.

another idea is recylcing paper or recycling the car motor oil, like mobil oils...these oils are thrown away at gas stations when changed, coudl you give me ideas , opinions or resources on these aspects
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Thanks in Advance
Sincerely,