Vol. 29 (4) December 2017, p. 579-587 REGENERATED SPENT BLEACHING EARTH FOR THE DECOLOURISATION AND BOD REDUCTION OF PALM OIL MILL EFFLUENT RUSNANI ABD MAJID* and CHE RAHMAT CHE MAT* DOI: https://doi.org/10.21894/jopr.2017.0006 | FULL TEXT | DOWNLOAD PDF