Grammar, Usage / "Academic English?"- converting poor english dissertation into academic uk english [2]

I am an oversease M.sc student in a medical subject in a UK university. I presented my two assignments for feedback to my teacher.My teacher has crossed , mistakes saying it is not UK academic writing. Teacher want to see it in Academic english. These are 6000 words dissertation and assignment each. Please help me.I heard there is a software that convert ordinary english in to Academic uk english ??. Please Help me SOS