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All Journal Journal of Research and Technology Jurnal Ilmu Alam dan Lingkungan INTEGRITAS : Jurnal Pengabdian Journal of Earth Energy Science, Engineering, and Technology Calamity: A Journal of Disaster Technology and Engineering Serambi Engineering
Aulia Nur Febrianti
Environmental Engineering Department, Faculty Of Engineering, Universitas PGRI Adi Buana
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Social Sciences Veterinary

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Journal : Serambi Engineering

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Biocoagulant Utilization from Java Tamarind Seed and Sweet Orange Peel for Turbidity, COD and BOD reduction in Domestic Wastewater Aulia Nur Febrianti; Rhenny Ratnawati; Muhammad Indra Ramadhan
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Domestic liquid waste typically originates from home trash and requires treatment to decrease quantities of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and mixed particles. Additionally, treatment is necessary to eliminate nutrients and harmful components. The objective of this study is to determine the optimal dosage of biocoagulant needed for the process of coagulation and flocculation in a laboratory setting using the jar test method, specifically for treating domestic wastewater. Tamarind seed shell waste contains tannin, which can act as a natural coagulant. It functions as a positively charged natural polyelectrolyte that efficiently binds to negatively charged colloidal particles. The study included independent variables consisting of different doses of a mixture between tamarind seed shell and sweet orange peel bio coagulants, with ratios of 1:0, 1:0.5, and 1:1. An optimal dosage of 1.5 grams of tamarind seed shell effectively reduced turbidity by 51%, BOD levels by 80%, and COD levels by 77%.
Analysis of Wastewater Quality of Jetis Batik, Sidoarjo Tjahjani, Ida Kusnawati; Febrianti, Aulia Nur; Pramana, Yanatra Budi; Titisari, Manik Ayu
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Jetis Batik Industry in Sidoarjo is recognized as a prominent batik center in East Java.  Batik is known as an industry that uses both natural and synthetic dyes.  This can serve as a source of environmental pollution.  This study is to evaluate the quality of wastewater generated by Jetis Batik in Sidoarjo.  The determined quality is then evaluated according to Permenkes 02 of 2023 and PerGub Jatim Number 72 of 2013.  In this research, batik wastewater samples from 20 batik cottage industries in the Jetis region of Sidoarjo were used.  It is acknowledged that it does not meet the clean water quality standards set by the Minister of Health Regulation Number 02 of 2023 in terms of TDS parameters, turbidity, color, Fe, Mn, nitrate, nitrite, pH, and chromium.  Subsequent research in accordance with East Java Governor Law No. 72 of 2013 showed that TDS, pH, Fe, Mn, Cr, COD and BOD exceeded the quality criteria established by law.  In addition, according to the East Java Governor Regulation No. 72 of 2023, batik liquid waste is classified into categories I, II, III, IV, and seawater, which is considered unsuitable for discharge into the marine environment.  Immediate disposal of batik liquid waste into water sources without prior treatment poses a significant risk of environmental contamination.
Co-Authors Agus Mardiyanto Arson, Rudolfus Dano, Gita Hang Darmastuti, Dwi Reping Farikh Akhsanul Hafidhin Indah Nurhayati Joko Sutrisno Kurniawan, Helminoufal Latifah, Nabila Fuadah Made, Dewa Manik Ayu Titisari Muhammad Al Kholif Muhammad Indra Ramadhan Pramana, Yanatra Budi Pungut, Pungut Rahayaan, Natalia Ratnawati, Rhenny Sri Widyastuti Sugih, Yuvita Sugito Sugito Susiloningtyas, Arianik Tjahjani, Ida Kusnawati Tribhuwaneswari, Annisa Budhiyani