Penyisihan senyawa fenolik air limbah dengan teknik ozonasi : studi kasus air limbah pabrik tekstil PT. Texmaco Jaya, Karawang-Jawa Barat = Removal of phenolic compounds in wastewater by simultaneous ozonation techniques : a case study in wastewater of textile mills PT. Texmca Jaya, Karawang-West Java