20 freelancers estão ofertando em média $95 para esse trabalho
السلام عليكم و رحمة الله Hello I will be happy to deal with you . I am biochemist and master student in nano department . I studied water treatment and ready to help you . Thanks
I am chemical engineer from Egypt and I have good background in waste water and waste management . kindly contact me over Chat to discuss more about details Regards
Hey, I have done my graduation in chemical engg. for your info and will love to work with you, but I would also like to know more about the project.