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Journal : Jurnal Sains

Penurunan Chemical Oxygen Demand (COD) Dan Fosfat (PO4-P) Limbah Laundry Menggunakan EM4 dan Mikroalga Spirulina sp Kristin Ari Fitria; indah nurhayati; Joko Sutrisno
Jurnal Sains & Teknologi Lingkungan Vol. 15 No. 1 (2023): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

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Abstract

Laundry waste containing COD and PO4-P levels exceeds the quality standard so that it is released directly into the water body due to eutrophication. One technology to reduce COD and PO4-P uses symbiosis of Spirulina sp and EM4 microalgae. The purpose of this study was to examine the EM4 survey (0%, 5%, and 10%), aeration and residence time of 3 days, 6 days and 9 days for pH, COD and PO4-P in waste treatment using microbial symbiosis Spirulina sp and EM4 . Microalgae culture Spirulina sp using microalgae seedlings from Biological Laboratotrum University PGRI Adi Buana Surabaya, and culture carried out for 35 days to obtain a chlorophyll a concentration of 4.1 mg/L. EM4 before use was activated by fermentation for 7 days. Waste treatment is carried out with a laboratory-scale batch system using a 5 L volume glass reactor. The results showed EM4 concentration, aeration and residence time evaluation of the reduction in COD and PO4-P. PH during the study was stable around 8.1 - 8.3, the highest COD and PO4-P reduction in the reactor with the addition of 5% EM4 with aeration on the 3rd day with a final COD concentration of 283.5 mg/L with a decrease of 81,75%, and a final PO4-P concentration of 11.25 m /L with a reduction of 48.15%.
PENURUNAN BEBAN PENCEMAR RUMAH POTONG HEWAN (RPH) MENGGUNAKAN SISTEM BIOFILTER ANAEROB Muhammad Al Kholif; Miftakhul Rohmah; Pungut; Indah Nurhayati; Djoko Adi Walujo; Majid, Dian
Jurnal Sains dan Teknologi Lingkungan Vol. 14 No. 2 (2022): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol14.iss2.art1

Abstract

Rumah Potong Hewan (RPH) di Desa Banyuurip, Kedamean, Gresik belum memiliki fasilitas pengolahan air limbah yang dihasilkannya, sehingga air limbah tersebut langsung dialirkan ke badan air dan menjadi sumber pencemaran air. Tujuan dilakukannya penelitian ini adalah untuk mengetahui efisiensi penurunan konsentrasi COD dan Amonia pada air limbah RPH menggunakan biofilter anaerob dengan variasi waktu tinggal 1,2,dan 3 hari. Penelitian ini dilakukan pada skala laboratorium menggunakan sistem kontinyu dengan reaktor yang terbuat dari kaca berukuran 20 x 20 x 60 cm bermedia bio ring (keramik ring). Reaktor yang digunakan terdiri dari 3 reaktor dengan masing-masing reaktor menyesuaikan variabel yang digunakan. Debit yang dialirkan sebesar 10 L/hari dengan analisis parameter dilakukan setiap hari selama 5 hari untuk masing-masing reaktor. Hasil penelitianmenunjukkan bahwa penurunan konsentrasi COD dan amonia tertinggi terjadi pada reaktor 3 hari ke-5dengan efisiensi sebesar 92,22% dan 91,23%. Konsentrasi COD dan Amonia tersebut telah memenuhibaku mutu yang tercantum pada Peraturan Gubernur Jawa Timur Nomor 72 Tahun 2013 tentang BakuMutu Air Limbah bagi Industri dan/atau Kegiatan Usaha Lainnya.Kata Kunci: Amonia, Bioring, COD, Limbah Cair RPH
Peningkatan Kualitas Air Bersih Sumur Gali Menggunakan Teknologi Filtrasi Al Kholif, Muhammad; Putra, Muhammad Uke Dwi; Sutrisno, Joko; Sugito, Sugito; Majid, Dian; Nurhayati, Indah
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 2 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss2.art3

Abstract

The most common problem encountered in the use of well water is the presence of metal contaminants, particularly iron (Fe) and manganese (Mn). One alternative solution is the use of filtration with zeolite and activated carbon. This research aims to improve the quality of well water by reducing Fe, Mn, and turbidity levels using filtration technology. The treatment reactor consists of two reactors with the difference between reactors 1 and 2 lies in the type of media used. Reactor 1 uses zeolite media, and reactor 2 uses activated carbon. The filtration column used is a PVC pipe with a diameter of 10 cm and a length of 1 m. The independent variable in this study is the composition of the filtration media, consisting of a combination of quartz sand-zeolite and quartz sand-activated carbon. The research findings show that in reactor 1, the decrease in Fe levels from the first day to the third day is 0.4975 mg/L, 0.6175 mg/L, and 0.605 mg/L, whereas in reactor 2, it is 0.9175 mg/L, 0.7725 mg/L, and 0.685 mg/L. The decrease in Mn levels in reactor 1 over three consecutive days is 0.08 mg/L, 0.07 mg/L, and 0.05 mg/L, while in reactor 2, it is 0.12 mg/L, 0.09 mg/L, and 0.06 mg/L. The decrease in turbidity levels in reactor 1 consecutively is 20.825 NTU, 13.305 NTU, and 11.09 NTU, while in reactor 2, it is 21.4775 NTU, 18.36 NTU, and 12.23 NTU. These filtration results have met the clean water quality standards according to PERMENKES No. 32 of 2017.
PENGOLAHAN LIMBAH CAIR LABORATORIUM DENGAN ADSORPSI SERTA PRETREATMENT NETRALISASI DAN KOAGULASI Nurhayati, Indah; Sugito, Sugito; Pertiwi, Ayu
Jurnal Sains & Teknologi Lingkungan Vol. 10 No. 2 (2018): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol10.iss2.art5

Abstract

The liquid waste of the UNIPA Surabaya Environmental Engineering laboratory has not fulfilled the requirements of the Minister of Environment Regulation Number 5 of 2014, so it needs to be processed so as not to pollute the Environment. This study aims to examine the effect of the coagulant dose of Poly Alum Chloride (PAC) on decreasing Pb, Cr, and TDS, assessing the quality of wastewater after neutralization, coagulation and adsorption especially for Pb, Cr, TDS, and pH parameters. The variables of this study were PAC doses of 150 mg / L, 225 mg / L and 300 mg / L. The research was carried out on a laboratory scale with a continuous system with downflow. The adsorption media used are fibers, coconut fiber, bagasse activated carbon and multilevel zeolites in the reactor from the PVC pipe. Adsorption process is carried out for 2 hours and sampling every 15 minutes. The results of this study showed that the PAC 300 mg / L produced the highest reduction efficiency, namely TDS 13.7% Cr 97%, Pb 93.5%, and the quality of waste after neutralization, coagulated and adsorbed in the 15th minute having TDS 1.810 levels ppm, Cr total 0.36 ppm, Pb 0.66 ppm so that wastewater has met the quality standards in accordance with Regulation of the Minister of Environment No. 5 of 2014 while the pH of 5.42 does not meet the quality standard.
Co-Authors Abadiana, Christine Abas, Muhamad Abdur Rosyid, Muh Ali Adhi Yuniarto Adi Utarini Anggun Rizky Yani Anhar, Rizki APRILIA LESTARI Ayu Pertiwi Bela Oktaviani Budi Arianto, Budi Chusnaifah, Defriana Lutfi Citra Indriani dewi k wulandari Dewi, Shinta Dian Majid Didik Sumanto Djoko Adi Walujo Eggi Arguni Febrioko, Dwi Fitriana, Iva Francisca Hermawan Huda, Mohammad Qomarul Huzna, Assiva Nurul Inayatus Sa‘idah, Archil Jenni Oni Rahmawati Jenti, Usman Bapa Joko Sutrisno Joko Sutrisno Kristin Ari Fitria Kusmaningrum, Winda Kusumaningrum, Manik Lailil Lutfia, Zumrotul Majid, Dian Marpaung, Oktavia Maulina, Tia Ayu MIFTAKHUL ROHMAH Moch. Shofwan Muhamad Abas Muhammad Al Kholif Muhammad Syafi'i Napitupulu, Bertha Elvy Novianto, Lutvi Nurina Dyah Larasaty, Nurina Dyah Pungut, Pungut Purwaningrum, Nabhela Ayu Purwoto, Setyo Putra, Muhammad Uke Dwi Putri, Dwi Yolanda Rafi Umara, Dimas Rahmaniasari, Dinda Rahmawati, Jenni Oni Raisha, Rajwa Ruhing Ramadhan Adityatama Ratnawati, Rhenny Riris Andono Ahmad Rizal, Adi Moh Rofi`'ah, Firda Zakiyatur Rohim, Imam Nur Sagita Rochman Sagung Alit Widyastuty Saputri, Alda Eva Saragih, Kuncu Saraswati, Utari Sari, Venny Yunita Sartika Dewi Sephia Icha Kesuma Setianingrum, Retno Siti Agustina Triastuti Sri Widyastuti Sri Widyastuti Sugito - Sugito Sugito Sulastri Sulastri Supriyati, Endah Suroto suroto Susilowati Triamanda, Rona Zulfa Triastuti, Siti Agustina Trixie Salawati Ulfa Nurullita Utami, Indira Diah Warsito Tantowijoyo, Warsito Widyastuty, Sagung Alit Wijayanti, Avissa Auryn Winda Kusmaningrum Wulandari Meikawati Zainudin, Mochamad Sofyan Zumrotus Sa'diyah