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All Journal TEKNIK BERKALA SAINSTEK Jurnal sistem informasi, Teknologi informasi dan komputer Journal of Tropical Biodiversity and Biotechnology Jurnal Sains & Teknologi Lingkungan Jukung (Jurnal Teknik Lingkungan) Jurnal Ilmu Alam dan Lingkungan Jurnal Skala Kesehatan Jurnal Abadimas Adi Buana Wahana : Tridarma Perguruan Tinggi WAKTU: Jurnal Teknik UNIPA Jurnal Ilmu Hukum The Juris Industrial and Domestic Waste Management JURNAL INOVASI DAN PENGABDIAN MASYARAKAT INDONESIA International Journal of Informatics, Economics, Management and Science INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal Pengabdian Masyarakat dan Riset Pendidikan Al Adawat : Jurnal Pendidikan Madrasah Ibtidaiyah Jurnal Pengabdian Masyarakat Indonesia (JPMI) EKOBIS ABDIMAS : Jurnal Pengabdian Masyarakat Journal of Clean Technology JURNAL REKAYASA KIMIA & LINGKUNGAN
Indah Nurhayati
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THE EFFECT OF ROTOR ROTATION SPEED ON DECREASED LABORATORY LIQUID WASTE POLLUTING PARAMETERS Kholif, Muhammad Al; Sutrisno, Joko; Nurhayati, Indah; Setianingrum, Retno
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 1, OCTOBER 2021
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i1.10572

Abstract

aboratory wastewater is produced through laboratory activities. Laboratory wastewater can have a large impact on the environment if it is not processed before being discharged into the water body. Laboratory waste treatment can be carried out using suspended growth technology to reduce pollutant loads, especially Biological Oxygen Demand (BOD5) and Chemical Oxygen Demand (COD). Aims: This study aims to treat wastewater produced by the activity of laboratory using suspended growth technology. Methodology and Results: This research was conducted by finding the most efficient rotor rotation in degrading the load of BOD5 and COD pollutants. The reactor used is a Mixed Flow Reactor type reactor made of acrylic material with a thickness of 5.5 mm. The reactor is arranged into three series with the same sampling time and different rotor turns that expressed in rotors per minute (rpm). The reactor series consists of Reactor I with 50 rpm rotor rotation speed, 100 rpm Reactor II and 150 rpm Reactor III. Processing is carried out using 8 hours of detention time and variation of sampling time every 8 hours. Conclusion, significant and impact study: From the results of the study obtained the highest level of effectiveness of reducing pollutant load on processing using 150 rpm rotor rotation and 40 hours sampling time which is 94.6% for BOD5 parameters and 94.4% for COD parameters.
DOMESTIC WASTEWATER TREATMENT USING VERMIFILTER COMBINED WITH CANNA INDICA Sutrisno, Joko; Nurhayati, Indah; Al Kholif, Muhammad; Rahmaniasari, Dinda
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 3, OCTOBER 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i3.12752

Abstract

Untreated domestic wastewater can pollute the aquatic ecosystem. Vermifilter integrated with the Canna indica plant is one of the technological alternatives that can be used to treat domestic wastewater. One of affecting the performance of vermifilters is the vermibed media. Aim: This study aims to examine the effect of vermibed material on the concentration of COD, TP, DO, and the pH value of domestic wastewater treated with vermifilter combined with Canna indica plants. Methodology and Results: The research was conducted on a laboratory scale with a a continuous system using a plastic reactor dimension of 59 x 38 x 29 cm, which is filled with sand filter media, coconut fiber, gravel, and vermibed. The vermibed reactor consists of 4 reactors including reactor 1 (R1) vegetable vermibed, reactor 2 (R2) sawdust, reactor 3 (R3) banana peel, and reactor 4 (R4) cow dung. The results showed that  at the end of the research, the best performance is showed by reactor R2 that able to decrease COD 94.81%, TP 92.07%, DO increase 320.00%, pH 6.30±0.10.  Vermibed sawdust (R2) can lower COD, TP and raise DO higher to treat domestic wastewater by combining vermifilter with Canna indica plant.  Conclusion, significance, and impact study:  Vermifilter with Canna indica plant is an effective wastewater treatment in reducing COD, TP, increasing DO and pH value.   This treatment is easy processing of operation and maintenance, does not require large land, can be done on an individual scale, and is environmentally friendly.
Bioremediation Greywater using Vermifilter Ratnawati, Rhenny; Nurhayati, Indah; Sutrisno, Joko; Sugito, Sugito
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 1 (2022): Jurnal Rekayasa Kimia & Lingkungan (June, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i1.25510

Abstract

Vermifilter is a greywater waste treatment by utilizing the symbiosis of earthworms with microbes. Vermifilter is more efficient, simple in design, and easy to maintain. The purpose of this study was to determine the effect of vermibed material on the concentration of BOD5, NH3-N, and DO in greywater waste treatment using vermifilter. The study used four vermifilter reactors (VF) with filtration media for gravel, coconut fiber, rough sand, and vermibed. Reactor VF1 uses a vermibed mixture of mustard greens and cabbage, VF2 sawdust, VF3 banana stalk, and VF4 cow dung. This study provides results that VF1 removal BOD5 90%, NH3-N 98%, and increase DO 164%; FV2 removal BOD5 92%, NH3-N 98%, and increase DO 185%; FV3 removal BOD5 94.5% NH3-N 98.5%, and increased DO 156%; and FV4 decreased BOD5 93%, NH3-N 99%, and increased DO 270%. The media material had no significant effect on the concentration of BOD, NH3-N, and DO.
PERLINDUNGAN HUKUM BAGI PEKERJA PEREMPUAN YANG MENGALAMI KEKERASAN SEKSUAL Nurhayati, Indah; Dewi, Sartika; Abas, Muhamad
The Juris Vol. 8 No. 2 (2024): JURNAL ILMU HUKUM : THE JURIS
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat STIH Awang Long

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56301/juris.v8i2.1302

Abstract

Penelitian ini bertujuan untuk menganalisis kasus kekerasan seksual yang terjadi di tempat kerja berdasarkan undang-undang nomor 12 tahun 2022 tentang tindak pidana pelecehan seksual dan pertanggungjawaban pelaku. Kemudian menganalisis kondisi-kondisi kebergantungan dilihat dari motif kronologi kasus. Metode yang penulis gunakan yaitu metode kualitatif dengan menggunakan pendekatan yuridis empiris. Data diperoleh dari hasil wawancara tiga orang korban, hasil penelitian didapatkan bahwa adanya tindak pelecehan sesksual. Di dalam undang-undang nomor 12 tahun 2022 tentang tindak pidana kekerasan seksual terdapat hak penanganan, hak perlindungan dan hak pemulihan bagi para korban, akan tetapi di PT.Plasess Indonesia tidak terdapat perlindungan pelecehan seksual bagi para pekerja wanita yang mengalami pelecehan seksual. Di dalam undang-undang nomor 12 tahun 2022 tentang tindak pidana pelecehan seksual menyebutkan bahwa penerapan sanksi pelecehan seksual nonfisik berupa sanksi pidana penjara selama 9 bulan dan denda sebanyak Rp.10.000.000 (sepuluh juta rupiah). Sedangkan di PT.Plasess Indonesia sendiri tidak ada sanksi khusus untuk pelaku pelecehan seksual maupuan perlindungan hukum bagi pekerja perempuan yang mengalami pelecehan seksual sebagai mana yang tertera dalam PKB (perjanjian kerja Bersama).
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.
Penerapan Bank Sampah Di Desa Kepatihan Tulangan Sidoarjo Untuk Meningkatkan Pendapatan Keluarga Dan Mengatasi Masalah Lingkungan: Penelitian Nurhayati, Indah; Dian Majid; Sri Widyastuti; Sugito, Sugito; Pungut, Pungut; Muhammad Al Kholif
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.3919

Abstract

Permasalahan pengelolaan sampah menjadi isu penting di berbagai wilayah, termasuk di Desa Kepatihan Kecamatan Tukangan Kabupaten Sidoarjo. Volume sampah rumah tangga yang terus meningkat memerlukan solusi berbasis masyarakat yang berkelanjutan. Program pengabdian ini bertujuan untuk menerapkan sistem bank sampah di Desa Kepatihan Kecamatan Tulangan Kabupaten Sidoarjo, sebagai upaya meningkatkan pendapatan keluarga dan mengatasi permasalahan lingkungan. Metode pelaksanaan kegiatan meliputi observasi dan identifikasi, sosialisasi dampak lingkungan sampah, implementasi bank sampah, pelatihan pemilahan sampah,  dan monitoring dan evaluasi kegiatan. Kegiatan sosialisasi dampak lingkungan sampah, implementasi bank sampah, pelatihan pemilahan sampah diikuti oleh pengurus PKK, anggota PKK dan perangkat Desa Tulangan sebanyak 45 orang. Hasil kegiatan menunjukkan bahwa pemahaman masyarakat tentang pemilahan sampah dan bank sampah mengalami peningkatan, yang semula menjawab sangat setuju hanya sekitar 16% namun setelah pelatihan dan sosialisasi, masyarakat yang menjawab sangat setuju meningkat hingga 52%. sehingga dapat disimpulkan masyarakat mulai memahami pentingnya memilah sampah dan nilai ekonomi dari sampah anorganik. Program ini berhasil menumbuhkan kesadaran lingkungan sekaligus mendukung ekonomi sirkular di tingkat desa.
The effect of audit tool and linked achieved system (ATLAS) on auditor performance Napitupulu, Bertha Elvy; Nurhayati, Indah; Hermawan, Francisca; Saragih, Kuncu; Marpaung, Oktavia
International Journal of Informatics, Economics, Management and Science Vol 5 No 1 (2026): IJIEMS (January 2026)
Publisher : Sekolah Tinggi Manajemen Informatika dan Komputer Jayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52362/ijiems.v5i1.2245

Abstract

Technological developments require all sectors to implement the use of information technology, including audit processes that transform manual audits into computer-based audit techniques. Computer-based audit techniques make it easier for auditors to collect evidence and evaluate data, thereby supporting the identification of material errors. The optimal use of computer-based audit techniques has a significant impact on the effectiveness of audit implementation. Public accounting firms have begun to use computerized audit techniques to improve the efficiency and effectiveness of the audit process. ATLAS (Audit Tool and Linked Achieved System) is one of the computer-based audit software that has become widely used in public accounting firms. ATLAS is audit software designed to improve the effectiveness and efficiency of audits through structured documentation, tracking of audit findings, and integration of historical data. The use of ATLAS software should significantly improve auditor performance, particularly in terms of the efficiency and accuracy of the audit process. This study aims to determine the effect of ATLAS usage on the performance of auditors from public accounting firms in Jakarta. Auditor performance is measured in terms of efficiency, effectiveness, and accuracy. The sample for this study consisted of 80 auditors from public accounting firms in Jakarta who had worked for at least one year using ATLAS. Data analysis was performed using regression analysis and simple linear correlation, the results of which showed that ATLAS had an effect on auditor performance, namely efficiency, effectiveness, and accuracy.
A Sustainable Sugarcane Bagasse Biochar–Bentonite Composite for Peroxide Value Reduction in Used Cooking Oil Wijayanti, Avissa Auryn; Yuniarto, Adhi; Nurhayati, Indah; Rochman, Sagita
Industrial and Domestic Waste Management Volume 5 - Issue 2 - 2025
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v5i2.945

Abstract

Used cooking oil underwent thermal and oxidative degradation due to repeated heating, resulting in increased peroxide levels and producing rancid odors, discoloration, and potential toxicity. In this study, the initial peroxide value of the used cooking oil was 56.42 meq O₂/kg, indicating significant oxidative degradation. The study evaluated the ability of activated sugarcane bagasse-bentonite (ASBB) and non-activated (SBB) composites to reduce peroxide values. Characterization was performed using SEM-EDX and FTIR, while adsorption efficiency was tested by varying the adsorbent dose (2–10 g) and treatment time (0–180 minutes). Peroxide reduction was analyzed using iodometric titration. The results showed that ASBB was more effective, with 10 g of ASBB and 180 minutes of treatment reducing the peroxide value by up to 82.3–84.5%.
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