Pulp and Paper industry which has been growing rapidly does not only bring financial benefits but also has an impact on the environment due to the use of chemicals and other materials in production process. Therefore, it is necessary to possess an appropriate and economical wastewater treatment using one of the adsorbents, like bottom ash, produced by boilers in Pulp and Paper Industry to be us…
Spent Bleaching Earth (SBE) merupakan limbah padat yang dihasilkan dari proses pemurnian (bleaching) minyak goreng. Limbah ini masih mengandung 20-30% minyak nabati. SBE mengandung bahan kimia berbahaya antara lain logam berat (Cr, Ni, dan Zn), residu minyak, serta residu asam. Oleh karena itu, berdasarkan Peraturan Pemerintah Nomor 85 Tahun 1999, SBE dikategorikan ke dalam limbah yang bersi…