?url_ver=Z39.88-2004&rft_id=10.1007%2Fs11356-017-0287-5&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Heng&rft.au=Heng%2C+G.C.&rft.aufirst=G.C.&rft.pages=27113-27124&rft.atitle=Enhancement+of+anaerobic+digestibility+of+waste+activated+sludge+using+photo-Fenton+pretreatment&rft.issue=35&rft.date=2017&rft.volume=24&rft.issn=09441344&rft.title=Environmental+Science+and+Pollution+Research&rft.genre=article