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Journal : Jurnal Inovator

Pengaruh Aditif Limbah Kerang Darah (Anadara Granosa) Terhadap Kualitas Beton K-225 Dian Kharismadewi; Muhammad Afrizal Pelantika; Marhaini
Jurnal INOVATOR Vol. 5 No. 2 (2022): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v5i2.155

Abstract

A rapid development of the concrete construction sector has resulted in an increase in the need for concrete raw materials that are obtained directly from nature. The need for environmentally friendly materials is also increasing along with the development of construction engineering technology, so several studies have been conducted to search for an alternative to raw materials additives or concrete mixtures. Anadara granosa clam shell can be utilized as one of the alternative materials to substitute material for coarse aggregates. In this research, Anadara granosa clam shells of 10% and 13% were added to normal concrete mixtures, aged for 28 days, and then analyzed for characteristics and compressive strength. From the analysis of the results, it was found that an increase in the concrete compressive strength up to 103.67% or 233.47 Kg/cm2 with the addition of clam shells 10% to normal concrete mixtures, while the addition of more than 10% can reduce the concrete compressive strength. Scanning Electron Microscopy results showed a relatively rough surface and many pores on the surface of the concrete due to the addition of a clam shell. Finally, it can be concluded that Anadara granosa clam shells can be used as concrete additives with a maximum addition of 10% of the total weight of normal concrete.
Pengolahan Limbah Cair Industri Petroleum Menggunakan Membran Komposit PVDF/Karbon Aktif/TiO2 Martini, Sri; Marhaini; Khairil Iksani; Elfidiah
Jurnal INOVATOR Vol. 8 No. 2 (2025): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v8i2.500

Abstract

Industri perminyakan menghasilkan limbah cair berminyak dalam jumlah yang signifikan. Hal ini memerlukan strategi pengolahan yang efektif untuk menghindari permasalahan terkait lingkungan. Dalam penelitian ini, dikembangkan membran komposit berbahan dasar polyvinylidene fluoride (PVDF), karbon aktif (AC) dari kulit singkong, serta TiO₂, yang ditujukan untuk mengolah limbah cair kilang minyak mentah dengan kandungan pencemar organik dan anorganik yang tinggi. Dalam penelitian ini, membran difabrikasi dengan variasi konsentrasi AC/TiO₂ sebesar 0, 1, 2, dan 3% untuk mengevaluasi pengaruh komposisi komposit terhadap kualitas permeat. Hasil penelitian menunjukkan bahwa membran dengan penambahan AC/TiO₂ sebesar 3% memberikan kinerja paling optimal. Pada rasio tersebut, efisiensi penyisihan mencapai lebih dari 40% for BOD5,  40% for COD, 80% for oil and grease, 69% for sulfida and 60% for amonia. Dengan demikian, membran komposit berpotensi menjadi alternatif yang andal untuk pengolahan limbah cair industri. penelitian lanjutan diharapkan dapat lebih mengeksplorasi integrasi membran komposit dengan teknik pengolahan lain untuk memperpanjang umur membran sekaligus meningkatkan kualitas limbah cair.