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afkar, khilyatul
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Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering

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Penyisihan BOD, COD, TSS, dan TDS Menggunakan Adsorben Lumpur Lapindo dan Cangkang Kerang Darah pada Limbah Tekstil Jetis Sidoarjo permatasari, tasya; rahmayanti, ardhana; rahman, annur; ruhaini; arifuddin, maulana rizki; firmansyah, achmad danial; afkar, khilyatul; Sumiyarsono, Elmi
Journal of Research and Technology Vol. 9 No. 2 (2023): JRT Volume 9 No 2 Des 2023
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v9i2.1065

Abstract

Jetis Batik Village is a Sidoarjo batik center that produces typical Sidoarjo handwritten batik. The batik processing process produces textile waste which must be processed before being discharged into the environment. Many producers, both large and household scale, have one thing in common, namely producing liquid waste, containing dyes, suspended solids, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), Total Dissolved Solids (TDS) that need to be managed before being discharged into water bodies. One way of processing that can be done is by using adsorbents. Lapindo mud and Blood Clam shells are abundant natural materials that can be used to process textile waste. Varying adsorbent mass ratios were carried out to determine the optimal adsorbent ratio for processing textile waste. Variations in mass of Blood Clamshells and Lapindo mud (1:0, 0:1, 1:1, 1:2, 2:1). The best variation in reducing COD was variation C (1 g Lapindo mud and 1 g Blood Clam shell) with a removal efficiency of 89.13%. The best variation in reducing TDS is variation E (2 g Lapindo mud and 1 g Blood Clam shell) with an efficiency of 86.07%. The TSS removal efficiency showed relatively the same results 33.33%.
Optimasi Removal Logam Pb Sungai Porong Sidoarjo Terdampak Lumpur Lapindo Menggunakan Biokoagulan Ekstrak Daun Mangga Asmarani, Nabila Nur Fauziyah Putri; Basri, Moch Faisal; Sabri, Rajib Naji; Hamidah, Laily Noer; Afkar, Khilyatul
Journal of Research and Technology Vol. 10 No. 1 (2024): JRT Volume 10 No 1 Juni 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i1.1116

Abstract

The Lapindo mud is an eruption event caused by excessive soil excavation, leading to contamination in the surrounding area, including the Porong River. Biocoagulants are natural coagulants that can act as flocculants to bind pollutants. This study aims to determine and identify the effectiveness of mango leaves as a biocoagulant in reducing turbidity and heavy metals in the Porong River water. The method used is maceration using ethanol with a concentration of 96% and 70%. The use of different ethanol concentrations creates diverse sample variations. Sample treatment with the biocoagulant involves both rapid and slow stirring. From the results of the study, the maximum reduction of Pb is achieved in variation E using 0.06 ml of 96% ethanol, with 20 minutes of rapid stirring and 40 minutes of slow stirring, resulting in an efficiency of 79.31%. For Cd, the best reduction efficiency is in variation J using 0.06 ml of 70% ethanol, with 15 minutes of rapid stirring and 30 minutes of slow stirring, resulting in an efficiency of 92%. The highest TDS reduction is observed in sample variation F. The findings suggest that mango leaf extract can serve as a natural biocoagulant to reduce the levels of heavy metals in the water of the Porong River.
Co-Authors Ardhana Rahmayanti arifuddin, maulana rizki Asmarani, Nabila Nur Fauziyah Putri Basri, Moch Faisal firmansyah, achmad danial Laily Noer Hamidah Permatasari, Tasya Rahman, Annur Ruhaini Sabri, Rajib Naji Sumiyarsono, Elmi