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All Journal Jurnal Ilmu Lingkungan Berkala Ilmiah Pertanian Geoplanning : Journal of Geomatics and Planning Rekayasa Sipil Jurnal Dampak Jurnal Ilmu Alam dan Lingkungan Jurnal Pembangunan Berkelanjutan Turast: Jurnal Penelitian dan Pengabdian JAIM (Jurnal Abdi Masyarakat) Geodika: Jurnal Kajian Ilmu dan Pendidikan Geografi Jurnal EnviScience (Environment Science) PREPOTIF : Jurnal Kesehatan Masyarakat Jurnal Sains Agro Spizaetus: Jurnal Biologi dan Pendidikan Biologi Jurnal Abdimas Berdaya : Jurnal Pembelajaran, Pemberdayaan dan Pengabdian Masyarakat Jurnal Mandala Pengabdian Masyarakat Jurnal Jaring SainTek Journal of Industial Engineering and Technology Baselang: Jurnal Ilmu Pertanian, Peternakan, Perikanan dan Lingkungan Environmental Engineering Journal ITATS De`Teksi : Jurnal Teknik Sipil Journal of Emerging Science and Engineering GeoEco Advances in Tropical Biodiversity and Environmental Sciences Analit: Analytical And Environmental Chemistry LEMBAH: Jurnal Pengabdian Masyarakat
Heri Mulyanti
Program Studi Ilmu Lingkungan, Fakultas Sains Dan Teknik, Universitas Bojonegoro
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy 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 Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Analisis Tekstur Tanah Untuk Evaluasi Kesesuaian Lahan Pertanian Di Desa Kawengan Elvania, Nindy Callista; Mulyanti, Heri; Uswatun, Winda; Nalalizza, Nabila
Jurnal Sains Agro Vol 10, No 2 (2025): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/jsa.v10i2.1844

Abstract

Tekstur tanah merupakan komponen penting dalam menentukan kesesuaian lahan untuk kegiatan pertanian. Penelitian ini bertujuan untuk menganalisis tekstur tanah di beberapa titik sampel di Desa Kawengan, Kecamatan Kedewan, Kabupaten Bojonegoro, serta mengevaluasi kesesuaiannya terhadap komoditas pertanian utama di daerah tersebut. Metode yang digunakan meliputi pengambilan sampel tanah di tiga lokasi berbeda, analisis laboratorium untuk menentukan persentase fraksi pasir, debu, dan liat, serta klasifikasi tekstur menggunakan segitiga tekstur USDA. Hasil analisis menunjukkan bahwa tekstur tanah di lokasi penelitian berkisar antara lempung berpasir hingga lempung, yang memiliki pengaruh terhadap kemampuan tanah dalam menyimpan air dan unsur hara. Berdasarkan hasil evaluasi, sebagian besar lahan tergolong sesuai (S2) hingga sesuai marginal (S3) untuk komoditas pertanian seperti jagung dan kedelai. Penelitian ini memberikan dasar ilmiah bagi perencanaan tata guna lahan pertanian yang lebih berkelanjutan di wilayah tersebut.
Efektivitas Membran Reverse Osmosis pada Pengolahan Limbah Cair di Industri Migas Anggraini, Adinda Dhayu; Mulyanti, Heri
Jurnal Jaring SainTek Vol. 7 No. 2 (2025): Oktober 2025
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/a68c4y04

Abstract

This study aims to evaluate the effectiveness of Reverse Osmosis (RO) membranes in reducing Total Dissolved Solids (TDS) in wastewater treatment in the oil and gas industry. High levels of TDS in industrial wastewater can affect equipment performance and does not meet water quality standards. The study used a descriptive quantitative approach with observation, interviews, literature studies, and company data analysis methods. The RO system implemented included pretreatment, chemical injection, high-pressure filtration, and storage of treated water. The results showed a significant decrease in TDS from 1,200 mg/L to 150 mg/L (efficiency 87.5%), turbidity from 3.2 NTU to 0.8 NTU (75%), and total hardness from 450 mg/L to 80 mg/L (82.2%), while pH was stable in the range of 6.8–7.1. These results prove that RO technology is capable of producing water with quality that meets the quality standards of the Minister of Health Regulation No. 492 of 2010. This study confirms the superiority of RO as an effective industrial water treatment method and recommends further research on operational costs, energy efficiency, and fouling control for long-term optimization.
PENINGKATAN PARTISIPASI MASYARAKAT MELALUI PEMANFAATAN BSF DALAM PENGELOLAAN SAMPAH ORGANIK MENJADI PAKAN TERNAK DAN PUPUK ORGANIK Elvania, Nindy Callista; Heri Mulyanti; Eka Luluk Fitriani; Reva Putri Sugianti
Jurnal Abdi Masyarakat Vol. 9 No. 1 (2025): Jurnal Abdi Masyarakat November 2025
Publisher : Universitas Kadiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jaim.v9i1.6423

Abstract

The problem of household organic waste remains an environmental issue that requires effective management in various regions, including Jelu Village. This community service activity aims to increase active community participation in organic waste management through the use of Black Soldier Fly (BSF) larvae. BSF cultivation technology was chosen because it can quickly decompose organic waste and produce by-products in the form of animal feed and organic fertilizer. This program was implemented through an educational approach, technical training, and direct mentoring for residents from several neighborhood units (RT) in Jelu Village. The results of the activity showed an increase in community knowledge and skills in BSF cultivation, with maggot production reaching 2 kg in three weeks and daily organic waste management of around 4–5 kg. Furthermore, the community was also able to independently build cultivation cages. This activity has succeeded in raising ecological awareness while providing economic benefits, and is expected to become a model for sustainable organic waste management at the village level.
Bongso River Water Quality Status Due to Traditional Oil Mining Activities Using the Pollution Index Method Ahmad Niamul Abrori; Laily Agustina Rahmawati; Heri Mulyanti
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 2 (2024): June 2024: Pages 58-118
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i02.p04

Abstract

Traditional petroleum mining activities in 137 old wells in Wonocolo Village, Bojonegoro Regency Council District, East Java, have a positive impact on the local community's economy, but also have a negative impact on the environment in the form of pollution of surface water. The study aims to determine the quality of the Bongso River in the traditional Wonocolo petroleum mining area based on physical and chemical parameters (temperature, pH, DO, TSS, TDS, COD, phenol, and nitrate), as well as analyze the level of pollution in the river using the Pollution Index method. The results of the Bongso River water quality analysis contained parameters that exceeded quality standards, namely, SB 1 station with COD levels of 47.1 mg / L and Phenol 0.196 mg / L. SB 2 station with TDS levels of 1010 mg / L, TSS 93.60 mg / L, COD 94.0 mg / L and phenol 0.552 mg / L. SB 3 station TDS levels 1190 mg / L, TSS 1778 mg/L, COD 84.7 mg/L, and phenol 0.747. Station SB 4 levels TDS worth 1450 mg / L, TSS 1019 mg / L, COD 28.2 mg / L, phenol 0.632 mg / L and DO levels do not meet the minimum quality standards of 3.4 mg / L. Station SB 5 levels TDS 1310 mg / L, COD 103.5 mg / L and phenol 0.364 mg / L. Station SB 6 levels TDS 1400 mg / L, COD 65.9 mg/L and phenol 0.585 mg/L. Station SB 7 levels TDS 1230 mg/L, TSS 54.80 mg/L and phenol 0.556 mg/L. Salinity of the Bongso River increased from upstream (SB1) to middle (SB2); 0 ppt to 4 ppt (rainy season). Water quality status using the IP method shows that SB 1 and SB 5 stations are categorized as Lightly Polluted. Meanwhile, SB 2, SB 3, SB 4, SB 6, and SB 7 stations are categorized as Moderately Polluted.
Analysis of Sulfate and Cadmium Distribution in Groundwater in Wonocolo Traditional Oil Mining Area, Bojonegoro Regency Santi Amanda Tiara Putri; Nindy Callista Elvania; Heri Mulyanti
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 2 (2025): June 2025
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i02.p03

Abstract

Wonocolo Village in Bojonegoro Regency is one of the traditional oil mining areas that still contains old Dutch oil wells. The presence of these wells has the potential to affect groundwater quality. Petroleum that contaminates the soil can seep into groundwater, posing a serious threat to areas that rely on it as a source of clean water. This study aims to evaluate groundwater parameters, including temperature, pH, cadmium, and sulfate, by the standards set by the Indonesian Ministry of Health Regulation No. 32 of 2017, specifically regarding hygiene, sanitation, and public baths. Sampling was conducted using a purposive sampling method at 14 points. Data analysis was performed using the inverse distance weighted (IDW) interpolation method. The results showed that in the densely populated southern part of the study area, the temperature at sampling point SG 13 reached 35°C, and cadmium levels across all samples ranged from 0.059 to 0.156 mg/L, exceeding the permitted quality standards. In contrast, pH and sulfate values met the quality standards set by Permenkes No. 32 of 2017. Therefore, efforts are necessary to reduce cadmium levels in the groundwater of Wonocolo Village, Bojonegoro Regency.
ASSESSMENT OF BENGAWAN SOLO RIVER RAW WATER QUALITY USING THE POLLUTION INDEX Intan Ayu Pebiola; Heri Mulyanti; Laily Agustina Rahmawati
Analit : Analytical and Environmental Chemistry Vol. 10, No. 01 April (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v10i01.215

Abstract

The Bengawan Solo River is a primary water resource in Central and East Java. Human activities along the Watershed (DAS) have affected water quality. This study evaluates the water quality of the Bengawan Solo River during the dry and rainy seasons from 2019 to 2023 using the Pollution Index (IP) method, based on secondary data from Perum Jasa Tirta I at four locations: upstream, middle, downstream 1, and downstream 2. The analyzed parameters include physical (temperature, TDS, TSS), chemical (pH, DO, BOD, nitrate), and biological (Total coliform) aspects. The results indicate that pH, TDS, and nitrate remain within quality standards, whereas temperature, BOD, DO, and TSS often exceed the limits, especially during the rainy season. The Pollution Index (Pij) suggests better water quality in the dry season, predominantly classified as "Lightly Polluted." However, in the 2021 rainy season, two locations reached the "Moderately Polluted" category, indicating that rainfall contributes to increased pollution.
PENGENALAN PERUBAHAN IKLIM SECARA SEDERHANA KEPADA PELAJAR SEKOLAH MENENGAH PERTAMA Heri Mulyanti
LEMBAH: Jurnal Pengabdian Masyarakat Vol. 1 No. 1 (2025): LEMBAH: Jurnal Pengabdian Masyarakat
Publisher : Sekolah Tinggi Ilmu Administrasi Panca Marga Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perubahan iklim merupakan tantangan global yang dampaknya semakin dirasakan hingga tingkat lokal, namun pemahaman mengenai isu ini masih terbatas, khususnya di kalangan pelajar sekolah menengah pertama. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan pemahaman dan kesadaran siswa terhadap perubahan iklim melalui pendekatan edukatif yang menggunakan bahasa sederhana dan analogi kontekstual. Sasaran kegiatan adalah 40 siswa MTs Muhammadiyah Banjaranyar, Kecamatan Baureno, Kabupaten Bojonegoro. Metode yang digunakan bersifat partisipatif, meliputi sosialisasi menggunakan media video edukatif dari BMKG, penyampaian materi visual sederhana, serta diskusi dan tanya jawab interaktif yang dikaitkan dengan pengalaman sehari-hari siswa. Evaluasi dilakukan melalui pertanyaan umpan balik sebelum dan sesudah kegiatan untuk mengukur perubahan pemahaman peserta. Hasil kegiatan menunjukkan peningkatan pemahaman siswa terhadap konsep dasar perubahan iklim, penyebab, dan dampaknya, terutama terkait pemanasan global, ketidakpastian musim, serta perubahan suhu yang semakin dirasakan. Pendekatan analogi dengan istilah “biasanya” dan “tidak seperti biasanya” terbukti efektif dalam membantu siswa memahami konsep perubahan iklim secara lebih konkret. Kegiatan ini menunjukkan bahwa pendidikan perubahan iklim dengan pendekatan sederhana dan kontekstual dapat menjadi langkah awal yang efektif dalam membangun literasi iklim dan mendorong kesadaran generasi muda terhadap pentingnya aksi adaptasi dan mitigasi perubahan iklim.
Pemodelan Dan Simulasi Sistem Antrean Pelayanan Farmasi Untuk Analisis Waktu Tunggu Pasien Pada Puskesmas Bojonegoro (Studi Kasus: Unit Pelayanan Obat) Rizky Stighfarrinata, ST., MT.; Eric Apriliawan Saputra; Heri Mulyanti; Luky Wahyu Saputra; Andika Wisnujati
Journal of Industrial Engineering and Technology Vol. 6 No. 2 (2026): 30 Juni 2026
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jointech.v6i2.17380

Abstract

Penelitian ini bertujuan menganalisis dan mengevaluasi sistem antrean pelayanan farmasi pada Puskesmas Bojonegoro menggunakan pendekatan simulasi Monte Carlo dan discrete event simulation berbasis Arena. Permasalahan utama berupa ketidakseimbangan antara laju kedatangan pasien dan kapasitas pelayanan yang menyebabkan antrean serta peningkatan waktu tunggu pasien. Data penelitian diperoleh melalui observasi langsung terhadap waktu kedatangan pasien, waktu pelayanan, jumlah resep, dan kapasitas tenaga farmasi. Analisis dilakukan menggunakan model antrean M/M/2 dengan indikator kinerja berupa waktu tunggu rata-rata, panjang antrean, dan utilisasi petugas. Hasil penelitian menunjukkan bahwa rata-rata waktu tunggu aktual sebesar 2,64 menit dengan utilisasi sistem sebesar 33%. Simulasi skenario penambahan satu petugas pelayanan mampu menurunkan waktu tunggu menjadi 1,59 menit. Hasil simulasi menunjukkan bahwa metode Monte Carlo dan Arena efektif digunakan sebagai dasar pengambilan keputusan dalam meningkatkan efisiensi pelayanan farmasi.
An insight from homogeneity testing of long-term rainfall datasets over East Java, Indonesia Heri Mulyanti; Istadi; Rahmat Gernowo
Journal of Emerging Science and Engineering Vol. 2 No. 2 (2024)
Publisher : BIORE Scientia Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jese.2024.e23

Abstract

Robust, reliable, and trustworthy ground observation datasets are the preliminary requirement for assessing the impact of climate change over regions. Principal testing to assess the quality of ground observation rely on the missing data and homogeneity result. The study used 40 years of monthly rainfall documented from different topographical features in the monsoonal region of East Java, Indonesia. The test included annual rainfall, early rainy season (October-November-December), and primary rain season (January-February-March). The homogeneity of rainfall determined by absolute technique: Pettitt’s test, the Standard Normal Homogeneity Test, the Buishand Rank Test, and the von Neumann Ratio. Among the time series, October-November-December observation results in better homogeneity. However, the rainfall datasets during primary rainy season showed the worst homogeneity. By performing annual and seasonal homogeneity test from 67 rainfall stations: 5 stations out of data length required, 5% stations ‘rejected’, 11% ‘suspect’, 11% ‘doubtful’, and 73% were ‘trusted’. Therefore, a total of 45 stations can be used as metadata for relative comparison and 7 stations can be considered to be useful for analysis despite ‘doubtful’. The remaining 10 stations need careful consideration to be used for future water management.  Change point detected particularly between the year of 1997 through 2000. Pettitt’s test has outstanding results in the case of extreme climatic anomaly, but less sensitive of continuous abrupt change. The von Neumann test could detect abnormal data, but was not suitable for datasets containing few extreme values. The insights from homogeneity testing were: a) it is important to remove any outliers in the datasets before conducting homogeneity testing, b) both parametric and nonparametric homogeneity tests should be performed, and c) comparisons should be made with surrounding rainfall stations. Comparison with trusted long-term rainfall data is valuable for stations labeled as ‘doubtful’ or ‘suspect’ to mitigate false detections in individual homogeneity tests. The identified ‘useful’ rainfall data can then serve as reference stations for relative homogeneity tests. These findings suggest that reference stations should be assessed within similar rainfall zones.  
TEMPORAL VARIATION OF VEGETATION INDEX RELATED TO PRECIPITATION DYNAMICS IN FORESTED AREA OF BOJONEGORO REGENCY Heri Mulyanti; Oktavianus Cahya Anggara; Bagus Saputra; Nabila Nalalizza; Eka Luluk Fitriani
GeoEco Vol 12, No 2 (2026): GeoEco July 2026
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ge.v12i2.106740

Abstract

Vegetation dynamics in monsoonal regions are related to climate variability, particularly precipitation. Changes in precipitation may be reflected in vegetation conditions, yet studies on the temporal relationship between NDVI and Rainfall at the regional scale remain limited. This study aims to analyze NDVI dynamics and their relationship with precipitation in Bojonegoro Regency, East Java, during 2001–2023. Using Landsat satellite imagery and CHIRPS precipitation data, the Normalized Difference Vegetation Index (NDVI) was analyzed to evaluate seasonal and interannual vegetation patterns. NDVI values were calculated for April–May and October, representing the end and beginning of the rainy season. Results show that NDVI tends to be higher at the end of the rainy season, with a median value of 0.365, compared to 0.254 at the beginning. The highest NDVI was recorded in 2021, with a median of 0.596. Forested areas demonstrated greater resilience to climate variability than croplands or degraded land. NDVI and Rainfall exhibited a complex relationship, with significant correlations observed only in 2001 at lags –2, –1, and +2. The lag time responses of NDVI after specified precipitation can be used for forest management and planting. The analysis suggests that detailed assessments using time series data are necessary for a clearer understanding. NDVI alone is insufficient, and field validation is required to confirm satellite-based interpretations. Therefore, planned management required to enhance ecosystem resilience to climate change.
Co-Authors A. P. Rimansa, Salwa Adinda Dhayu Anggraini Agustiana, Elsa Ahmad Niamul Abrori Amalia, Faza Amalia, Isna Nur Anggraini, Adinda Dhayu Anggraini, Sholikhah Risqi Dwi Ayu Kurnia Ratna Sari Ayu Pebiola, intan Bagus Saputra Callista E, Nindy Eka Luluk Fitriani Eka Luluk Fitriani Elana Firdayanti Elika Febriati Elsa Agustiana Elvania, Nindy Callista Endi Adriansyah Eric Apriliawan Saputra Evi Cici Kumala Evi Cici Kumala Exta, Febri Febri Novita Sari fjasmine, Marshada Harjono Harjono I. Istadi Ilham Muchtar Ashari Intan Ayu Pebiola Intan Ayu Pebiola Istadi Luky Wahyu Saputra Mahendra Kusuma, Rieza Mrabawani Insan Rendra Nabila Nalalizza Nalalizza, Nabila Nindy Callista Elvania Nindy Callista Elvania Oktavianus Cahya Anggara Putri Astin Ningrum Rahmat Gernowo Rahmat Gernowo Rahmawati, Laily Agustina Reva Putri Sugianti Risqi Dwi Anggraini, Sholikhah Rizaliansyah, Moh. Ainun Rizky Stighfarrinata, ST., MT. Romadhoni, Novita Santi Amanda Tiara Putri Saputra, Akbar Andis Sari, Andini Ratna Solikhati Indah Purwaningrum Solikhati Indah Purwaningrum Uswatun, Winda Wibowo, Candra Guruh Adi Wisnujati, Andika Yenny Sri Margiani