QUALITY IMPROVEMENT OF CLEAN WATER FROM MAHAKAM RIVER USING MORINGA OLEIFERA SEED POWDER AND COCONUT SHELL CHARCOAL

• Main Authors: , novita debora nathen, , Mohammad Sulaiman, S.T., M.T., D.Eng.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2011
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/90486/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=53547
• Institution: Universitas Gadjah Mada

Samarinda is the capital city of East Kalimantan with the area of 718 km2 and the population of 770.753. Mahakam river is one of the most important transportation infrastructure in the East Kalimantan Province. Despite of the turbid and brownish water because of soil particles, mud and even heavy metal element from industrial waste and activities from people who live near the river, it still remains the pride of East Kalimantan, especially Samarinda and Kutai Kartanegara. The research uses Moringa Oleifera seed powder as a natural adsorbent in the adsorption process to reduce the level of iron ions (Fe2+), turbidity and to increase the pH value of the water in the Mahakam river. It uses coconut shell charcoal to eliminate odors from the adsorption process with Moringa Oleifera seed. The raw material is water from Mahakam river with the dosage variation of Moringa Oleifera seed powder ( 0,8 g/L, 1 g/L, 3 g/L dan 5 g/L ) and the time of precipitation (0 minute, 15 minute, 30 minute, 60 minute, 90 minute, 120 minute, 150 minute and 180 minute). The result shows that the Moringa Oleifera seed powder able to reduce the concentration of iron ions, turbidity and increase pH value of water. Moringa Oleifera seed contain cationic protein compounds and active rhamnosyloxybenzil- isothiocyanate that use able to adorp and neutralize mud particles and metal that are contained in wastewater with floating waste particle in the water. From variety the dosage of the Moringa Oleifera seed powder and the time of precipitation, it is obtained optimum value in 1 liter water with 1 g/L of Moringa Oleifera seed powder and 60 minute contact time with the results of iron ion reduction (Fe2+) 3.786 mg/L to Fe2+0.192 mg/L (down to 94.93 %), reduction of turbidity level from 30.6 NTU to 3.96 NTU and pH water to 6.32.