relation: https://eprints.untirta.ac.id/51233/
title: PEMANFAATAN STEEL SLAG DAN KULIT MELINJO SEBAGAI ALTERNATIF MATERIAL PEMBUATAN PUPUK KALSIUM FOSFAT
creator: Utomo, Mochammad Fandito
subject: TP Chemical technology
description: Banten Province produces waste from steel processing or known as steel   slag of 1.4 million tons per year. This area is also known for the large amount of   melinjo crops, this makes melinjo skin waste quite abundant. The two wastes have   only been used in a fairly limited field, where steel slag is only used in the   construction sector and melinjo leather waste is only used as processed food. The   two wastes still contain elements that can be used in agriculture in large quantities,   the content is calcium in steel slag and phosphorus in melinjo skin waste. This study   aims to extract calcium in steel slag and phosphorus in melinjo skin waste and then   use it into high-phosphorus calcium chloride fertilizer. In addition, this study also   aims to determine the type of extraction and the best operating conditions to extract   the two elements. The method used in this study is extraction using strong acids.   The results obtained in this study are calcium phosphate fertilizer products with   calcium content of 0.93% and phosphate 0.19%, the best type of extraction to   extract phosphorus is H2SO4 with a phosphorus content of 148.96 ppm, and the   best temperature and time for calcium extraction from steel slag is 65°C and the   time is 30 minutes with the mass of CaCO3 produced is 41.6 gr.
date: 2025-07-11
type: Thesis
type: NonPeerReviewed
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identifier: https://eprints.untirta.ac.id/51233/1/Mochammad%20Fandito%20Utomo_3335210002_FullText.pdf
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identifier: https://eprints.untirta.ac.id/51233/2/Mochammad%20Fandito%20Utomo_3335210002_CP.pdf
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identifier: https://eprints.untirta.ac.id/51233/4/Mochammad%20Fandito%20Utomo_3335210002_02.pdf
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identifier: https://eprints.untirta.ac.id/51233/5/Mochammad%20Fandito%20Utomo_3335210002_03.pdf
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identifier: https://eprints.untirta.ac.id/51233/6/Mochammad%20Fandito%20Utomo_3335210002_04.pdf
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identifier: https://eprints.untirta.ac.id/51233/7/Mochammad%20Fandito%20Utomo_3335210002_05.pdf
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identifier: https://eprints.untirta.ac.id/51233/8/Mochammad%20Fandito%20Utomo_3335210002_Reff.pdf
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identifier: https://eprints.untirta.ac.id/51233/9/Mochammad%20Fandito%20Utomo_3335210002_Lamp.pdf
identifier:   Utomo, Mochammad Fandito  (2025) PEMANFAATAN STEEL SLAG DAN KULIT MELINJO SEBAGAI ALTERNATIF MATERIAL PEMBUATAN PUPUK KALSIUM FOSFAT.  S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.