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All Journal Ecotrophic, Journal of Environmental Science BERKALA SAINSTEK Jurnal sistem informasi, Teknologi informasi dan komputer Journal of Tropical Biodiversity and Biotechnology Jurnal Sains & Teknologi Lingkungan JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jukung (Jurnal Teknik Lingkungan) Jurnal Ilmu Alam dan Lingkungan Pendas : Jurnah Ilmiah Pendidikan Dasar IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Skala Kesehatan Jurnal Abadimas Adi Buana Jurnal Penamas Adi Buana Wahana : Tridarma Perguruan Tinggi WAKTU: Jurnal Teknik UNIPA Jurnal Ilmu Hukum The Juris International Journal of Marine Engineering Innovation and Research Industrial and Domestic Waste Management JURNAL INOVASI DAN PENGABDIAN MASYARAKAT INDONESIA JUARA: JURNAL WAHANA ABDIMAS SEJAHTERA INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal Pengabdian Masyarakat dan Riset Pendidikan Al Adawat : Jurnal Pendidikan Madrasah Ibtidaiyah EKOBIS ABDIMAS : Jurnal Pengabdian Masyarakat Journal of Clean Technology JURNAL REKAYASA KIMIA & LINGKUNGAN
Indah Nurhayati
Universitas PGRI Adi Buana Surabaya
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Bibliometrics Analysis and Future Study Trends in Anaerobic Biofilter Systems for Laundry Wastewater Treatment Sutrisno, Joko; Al Kholif, Muhammad; Purwanti, Linda; Nurhayati, Indah
International Journal of Marine Engineering Innovation and Research Vol 9, No 3 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.21544

Abstract

The rapid expansion of the laundry industry, particularly in residential areas, has led to significant environmental challenges due to the discharge of untreated wastewater containing high levels of pollutants, such as Chemical Oxygen Demand (COD) and phosphate (PO₄). This study aims to explore the effectiveness of anaerobic biofilter systems in reducing COD and PO₄ levels in laundry wastewater. A lab-scale anaerobic biofilter reactor was designed and operated at varying hydraulic retention times (HRTs) of 9, 11, and 13 hours to treat the wastewater. The results showed that the anaerobic biofilter system effectively reduced PO₄ levels, meeting Indonesian regulatory standards, with the highest removal efficiency observed at an HRT of 11 hours. However, while COD levels were reduced, they remained above the required quality standards, indicating the need for optimization of the treatment process. The study highlights the potential of anaerobic biofilters in laundry wastewater treatment and suggests further research into integrated treatment approaches for improved pollutant removal.
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.
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%.
THE EFFECT OF ROTOR ROTATION SPEED ON DECREASED LABORATORY LIQUID WASTE POLLUTING PARAMETERS Muhammad Al Kholif; Joko Sutrisno; Indah Nurhayati; Retno Setianingrum
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.
KORELASI MINAT BELAJAR DENGAN KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA KELAS V SEKOLAH DASAR DI PEKANBARU Nurhayati, indah; Intan Kartika Sari; Otang Kurniaman
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Public
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.53500

Abstract

Penelitian ini dimotivasi oleh pentingnya keterampilan berpikir kritis dalam pembelajaran matematika di tingkat sekolah dasar. Namun, keterampilan berpikir kritis matematika siswa masih relatif rendah. Salah satu faktor yang diasumsikan mempengaruhi keterampilan ini adalah minat belajar. Oleh karena itu, penelitian ini bertujuan untuk mengetahui tingkat minat belajar siswa, tingkat keterampilan berpikir kritis matematika, dan korelasi antara minat belajar dan keterampilan berpikir kritis matematika di kalangan siswa kelas lima sekolah dasar di Pekanbaru. Penelitian ini menggunakan pendekatan kuantitatif dengan desain korelasional. Populasi terdiri dari siswa kelas lima dari empat sekolah dasar negeri di Pekanbaru, dengan sampel sebanyak 80 siswa yang dipilih menggunakan pengambilan sampel acak berdasarkan rumus Slovin. Data dikumpulkan melalui kuesioner minat belajar dan tes berpikir kritis matematika. Data yang dikumpulkan dianalisis menggunakan statistik deskriptif, uji normalitas, uji linearitas, dan analisis korelasi peringkat Spearman. Hasil penelitian menunjukkan bahwa minat belajar siswa dalam matematika dikategorikan sedang, sedangkan keterampilan berpikir kritis matematika mereka dikategorikan rendah. Selanjutnya, analisis korelasi menunjukkan koefisien korelasi sebesar 0,223 dengan nilai signifikansi 0,045 (p < 0,05). Temuan ini menunjukkan hubungan positif yang signifikan antara minat belajar dan kemampuan berpikir kritis matematika. Namun, kekuatan hubungan tersebut diklasifikasikan sebagai lemah. Oleh karena itu, meningkatkan minat belajar siswa dapat berkontribusi pada peningkatan kemampuan berpikir kritis matematika mereka dalam pembelajaran matematika sekolah dasar.
Co-Authors Abadiana, Christine Abas, Muhamad Abdur Rosyid, Muh Ali Adhi Yuniarto Adi Moh Rizal Adi Utarini Al Kholif, Muhammad Anhar, Rizki Aulia Nur Febrianti Ayu Pertiwi Budi Arianto, Budi Budipramana, Krisyanti Christine Abadiana Chusnaifah, Defriana Lutfi Citra Indriani dewi k wulandari Dewi, Shinta Dian Majid Didik Sumanto Djoko Adi Walujo Dwi Febrioko Eggi Arguni Farikh Akhsanul Hafidhin Fauziatul Fajaroh Febrioko, Dwi Firda Zakiyatur Rofi'ah Fitriana, Iva Huda, Mohammad Qomarul Huzna, Assiva Nurul Inayatus Sa‘idah, Archil Intan Kartika Sari Jenni Oni Rahmawati Jenti, Usman Bapa Joko Sutrisno Joko Sutrisno Joko Sutrisno Joko Sutrisno Joko Sutrisno Kristin Ari Fitria Kurniawati , Cici Tri Kusmaningrum, Winda Kusumaningrum, Manik Lailil Lutfia, Zumrotul Lutvi Novianto Maulina, Tia Ayu MIFTAKHUL ROHMAH Moch. Shofwan Mochamad Sofyan Zainudin Muh Ali Abdur Rosyid Muhamad Abas Muhammad Al Kholif Muhammad Syafi&#039;i Novianto, Lutvi Nurina Dyah Larasaty, Nurina Dyah Otang Kurniaman Pungut Purwaningrum, Nabhela Ayu Purwanti, Linda Putra, Muhammad Uke Dwi Putri, Dwi Yolanda Rafi Umara, Dimas Rahmawati, Jenni Oni Raisha, Rajwa Ruhing Retno Setianingrum Rhenny Ratnawati Riris Andono Ahmad Rizal, Adi Moh Rizki Anhar Rohim, Imam Nur Sagita Rochman Sagung Alit Widyastuty Saputri, Alda Eva Saraswati, Utari Sartika Dewi Sela Vigiani Setyo Purwoto Shinta Dewi Siti Agustina Triastuti Sri Widyastuti Subandowo, Marianus Sugito Sugito - Sugito Sugito Sulastri Sulastri Sulastri Sulastri Supriyati, Endah Suroto suroto Susilowati Sutrisno, Joko Triamanda, Rona Zulfa Triastuti, Siti Agustina Trixie Salawati Ulfa Nurullita Usman Bapa Jenti Utami, Indira Diah Warsito Tantowijoyo, Warsito Wawan Gunawan Widyastuty, Sagung Alit Wijayanti, Avissa Auryn Winda Kusmaningrum Wulandari Meikawati Yanatra Budi Pramana Yoso Wiyarno Zainudin, Mochamad Sofyan Zumrotus Sa'diyah