TY - THES N1 - Prof. Dr. Maya Rahmayanti, S,Si, M.Si. ID - digilib75479 UR - https://digilib.uin-suka.ac.id/id/eprint/75479/ A1 - Rini Maulida, NIM.: 22106030026 Y1 - 2026/01/19/ N2 - Household laundry waste contains various pollutants that can be measured using COD, TSS, TDS, surfactants, pH, and temperature parameters, thus potentially polluting the environment. This study aims to synthesize Fe?O?-CS nanomaterials through the reverse coprecipitation method, characterize them, and apply them as a wastewater filtration medium with a combination of activated charcoal and zeolite. The synthesis of Fe?O?-CS was carried out by mixing FeCl?·6H?O and FeSO?·7H?O into NaOH and adding orange peel extract as a stabilizer and capping agent. The synthesis results were characterized using FTIR, XRD, and SEM-EDX. The FTIR spectrum results showed the presence of typical absorption peaks of magnetite and organic groups of orange peel extract. The XRD diffractogram showed the formation of a pure magnetite phase in accordance with JCPDS No. 19-0629 with an average crystal size of 7.09 nm. The SEM results showed irregular particle morphology with a size of 833 nm with a rough surface, while EDX confirmed the elemental composition of Fe, O, and C which indicated the successful coating of organic compounds from orange peel. The application of Fe?O?-CS as a filtration medium showed improved performance compared to filter media without Fe?O?- CS. COD decreased from 1300 mg/L to 855 mg/L, TSS decreased from 292 mg/L to 197 mg/L, and detergent content decreased from 260 mg/L to 140 mg/L. Meanwhile, TDS decreased relatively slightly from 909 mg/L to 855 mg/L. The pH and temperature of the wastewater after filtration remained within the safe range according to quality standards. The interaction mechanism between pollutants and Fe?O?-CS is thought to involve electrostatic interactions, hydrogen bonds, and ??? interactions. Regeneration tests of up to five cycles showed that filtration efficiency fluctuated but was not significant, indicating that the Fe?O?-CS media still has potential for reuse. PB - UIN SUNAN KALIJAGA YOGYAKARTA KW - Nanomaterial Magnetit KW - Filtrasi KW - Adsorpsi KW - Air Limbah Laundry M1 - skripsi TI - SINTESIS NANOMATERIAL MAGNETIT TERMODIFIKASI EKSTRAK LIMBAH KULIT JERUK MANIS (Citrus sinensis) DAN APLIKASINYA SEBAGAI MEDIA FILTER AIR LIMBAH DENGAN KOMBINASI ARANG AKTIF DAN ZEOLIT AV - restricted EP - 130 ER -