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Wahyuningsih, Sri

Fakultas Teknologi Pertanian, Universitas Jember

Author-ID : 1290473

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Other

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Pengujian 9 Algoritma Untuk Pemisahan Aliran Dasar : Studi Di Wilayah UPT PSDA di Madiun Sri Wahyuningsih; Indarto -; Tri Galih Yudhatama
Jurnal Teknik Sipil Vol 25 No 2 (2018)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2018.25.2.6

AbstrakPenelitian ini bertujuan untuk menguji sembilan (9) algoritma pemisahan aliran dasar yang terdiri dari: enam (6) algoritma pemisahan berbasis filter digital (Recursive Digital Filter/RDF) dan tiga (3) algoritma pemisahan berbasis grafis digital. Tahapan penelitian mencakup: (1) inventarisasi data, (2) pengolahan data, (3) kalibrasi dan validasi, dan (4) evaluasi kinerja. Ke 9 metode algortima pemisahan tersebut dikalibrasi menggunakan data debit harian dari tahun 1996 sampai tahun 2015. Kalibrasi dilakukan per tahun pada sub-DAS Kalibrasi. Kalibrasi dilakukan selama puncak musim kemarau (Juli sampai September) setiap tahunnya. Pemilihan sub-DAS untuk kalibrasi mempertimbangkan kelengkapan data yang ada pada sub-DAS tersebut. Selanjutnya parameter optimal ditentukan dari nilai rerata parameter tahunan. Kemudian, nilai RMSE, koefisien determinasi yang didapatkan dari scatter-plot, visualiasasi kurva-durasi-aliran, dan hidrograf aliran digunakan untuk mengevaluasi kinerja model. Proses validasi pada ke 3 sub-DAS lainnya menggunakan nilai parameter yang didapat dari DAS kalibrasi. Hasil pengujian menunjukkan bahwa pada prnisipnya semua algoritma dapat memisahkan aliran dasar dari debit total-nya. Namun demikian, algoritma Lyne & Hollick and EWMA menghasilkan kinerja yang lebih baik dari ke tujuh algoritma lainnya. Nilai rerata RMSE = 0,036 dan r2=0,87 untuk metode Lyne &Hollick. Kinerja EWMA ditunjukan oleh nilai rerata RMSE = 0,041 and r2= 0,83. AbstractThis research aimed to evaluate nine (9) algorithmes for baseflow separation. The six (6) recursive digital filter (RDF) and three (3) graphical separation algoritms were evaluated in this study. Four watersheds located at the administratuve boundary of UPT PSDA Madiun were used. The methodology consists of (1) data inventory, (2) data processing, (3) calibration and validation, and (4) evaluating of models performance. The algorithms were calibrated using daily discharge data (from 1996 to 2015) for each year. The average values of the parameters obtained from calibration process were used to separate baseflow for the whole period record. Calibration watershed was determined by considering the completenes of recording discharge data (in this case: we use Nambangan sub-watershed). Validation process to others three (3) sub-watersheds conducted using parameter value from the calibrated watersheds. Then, RMSE, scatter plot, FDC and hydrograph were used to evaluate model performance during the dry season (July to September) both on calibrated and validated watersheds. The result shows that pincipally all of the nine (9) algorithms can be used to separate baseflow from the total flow. Howerver, Lyne & Hollick and EWMA algortimes show the best performance compared to others algorithms. This conclusion based on the calculation of RMSE and R Squared (r2). The average value of RMSE =0,036 and R2=0,8 for Lyne &Hollick. Similarly, RMSE = 0,041 and r2= 0,83 for EWMA filter.

Studi Tentang Pemisahan Aliran Dasar pada DAS di Wilayah UPT PSDA Pasuruan, Jawa Timur Indarto -; Elda Novita; Sri Wahyuningsih; Hamid Ahmad; Muharjo Pudjojono
Jurnal Keteknikan Pertanian Vol. 4 No. 2 (2016): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractThis research aims to determine the range of parameter value and to select the appropriate method for baseflow separation. Seven (7) recursive-digital-filters (RDF) and two (2) graphical methods were used for this study. Discharge data from 6 watersheds in the administrative area of UPT PSDA Pasuruan in East Java were used to test those nine (9) algorithms. Firstly, each method was calibrate using daily discharge data for each year (annually) to separate baseflow. Then, optimal parameter values are obtained by averaging the annual values. Calibration process produce optimal parameters value for each watershed. Furthermore, validation are effectued using optimal parameter values from Pekalen watershed’s to other watersheds. The result show that optimal parameter values from Pekalen could be used to separate baseflow in other watersheds. Results also recommend two algorithems (EWMA filter and fixed interval) to be used more frequently for baseflow seperation on this region.AbstrakPenelitian bertujuan untuk menentukan nilai range parameter dan memilih metode pemisahan yang dapat direkomendasikan untuk diterapkan pada DAS-DAS di wilayah provinsi Jawa Timur. Tujuh (7) metode berbasis filter atau Recursive-Digital-Filter (RDF) dan dua (2) jenis metode berbasis grafis digunakan dalam penelitian ini. Data debit harian (dari 1996 sd 2005) yang berasal dari 6 DAS pada wilayah UPT PSDA Pasuruan dipilih sebagai sampel pengujian. Kalibrasi dilakukan menggunakan data debit musimkemarau (bulan Juli - September) pada tiap tahun-nya dan diperoleh kisaran nilai parameter untuk tiap metode pada masing-masing DAS. Proses validasi dilakukan dengan menggunakan nilai parameter DAS Pekalen, untuk menentukan baseflow pada DAS lain. Hasil penelitian menunjukkan bahwa nilai parameter dari DAS Pekalen dapat digunakan untuk menentukan aliran dasar (baseflow) pada DAS lain. Penelitian juga merekomendasikan filter EWMA dan metode grafis interval tetap (fixed interval) untuk digunakan di wilayah UPT PSDA Pasuruan.

Reduksi Bahan Organik Kulit Kopi dan Eceng Gondok Terhidrolisis Menggunakan Proses Anaerbik Elida Novita; Sri Wahyuningsih; Subdatul Widad; Hendra Andiananta Pradana
Jurnal Keteknikan Pertanian Vol. 9 No. 1 (2021): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.09.1.23-30

Coffee pulp and water hyacinth are a biomass source that can be used to feeding material for biogas production as energy an anaerobic digester. But coffee pulp and water hyacinth contain lignin. The Alkaline or base hydrolysis is a method of the solving chemical structure of lignin compounds using a strong acid and base. The focus of research investigated the base hydrolysis with NaOH in coffee pulp and water hyacinth an anaerobic process for organic material reduction. The research design in laboratory conduct of organic materials reduction on coffee pulp and water hyacinth used Completely Random Design (CRD). Anaerobic treatments were without hydrolysis (H1), only the coffee pulp with hydrolysis (H2), only water hyacinth with hydrolysis (H3) and all with hydrolysis (H4). The highest NaOH concentration for lignin reduction on the base hydrolysis was 60 ppm. The analysis of variants with significantly (p<0.05) showed all treated differently. Anerobic treatment of the coffee pulp and water hyacinth (H4) had the highest value organic material reduction. The efficiency of organic material reduction i.e. C/N, BOD and COD was in sequence namely 64.22 ± 0.02; 75.23 ± 0.02 dan 52.55 ± 0.04.

VARIASI KOMPOSISI INPUT PROSES ANAEROBIK UNTUK PRODUKSI BIOGAS PADA PENANGANAN LIMBAH CAIR KOPI Elida Novita; Sri Wahyuningsih; Hendra Andiananta Pradana
JURNAL AGROTEKNOLOGI Vol 12 No 01 (2018)
Publisher : Faculty of Agricultural Technology, University of Jember

Generally, there are two methods of coffee processing beans that are the dry processing and wet processing. The wet coffee processing will produce waste water containing organic materials. The high contain of organic matter in coffee wastewater can be used as biogas through anaerobic process. The biogas production from this processcould have variation of volume and composition depends on their feeding. The purposes of this research were to find the best biogas volume would be produced based on variation of input in batch feeding method (1) and to reduce coffee wastewater concentration by anaerobic process (2). The researched procedures were inoculum production, incubating adaptation and variation of batch feeding into the anaerobic reactor (4 variations). The variation of batch feeding were (1) 1:1; (2) 3:1; (3) 3.7:0.3 for water and (4) 3.6 : 0.4 for cow dung. The highest biogas volume and pollution load reduction were occurred in batch feeding composition 1:1. The volume of biogas production was 250 mL at day 6 and the percentage of parameters reduction were COD 57.35% and BOD 57%. Based on this research, there were also increasing gas volume from day 2 (95 ml) up to day 6 (250 ml) in each batch. Keywords: anaerobic process, biogas, coffee wastewater treatment, input variation

BEBAN PENCEMARAN KALI JOMPO DI KECAMATAN PATRANG-KALIWATES KABUPATEN JEMBER Siti Nur Aziza; Sri Wahyuningsih; Elida Novita
JURNAL AGROTEKNOLOGI Vol 12 No 01 (2018)
Publisher : Faculty of Agricultural Technology, University of Jember

Jompo River is one of many tributaries in Jember District has become one of the water source for inhabitant around use for their daily needs. People activities can make water quality in Jompo River has been polluted gradually. The measurement need to knows water quality and polution load which enter in to Jompo River. Location of research was start form Patrang to Kaliwates District with six node and distantance 625 m. each node. This research was conducted in March-July 2017. Based on data analysis, average value of water quality were TSS was 67 mg / l, TDS was 104.78 mg / l, pH was 6.73, DO was 8.34 mg / l, and BOD was 1.20 mg / l. Based on Government Regulation No. 82 of 2001, the Jompo river water quality was included in class II criteria. The highest pollution load was at the 6th node of 394.39 kg/day. Jompo River has an average reaeration rate of 0.65 mg / l.day and deoxygenation rate of 0.284 mg / l.day. The river was ability to accomodate of pollution load because the rate of reaeration rate was higher than the value of deoxygenation rate. Keywords: Jompo River, pollution load, water quality

APLIKASI METODE AMBANG BERTINGKAT UNTUK ANALISIS POTENSI BANJIR: STUDI PENDAHULUAN PADA 15 DAS DI JAWA TIMUR Indarto Indarto; Sri Wahyuningsih; Muhardjo Pudjojono; Hamid Ahmad; Tino Bachtiar
JURNAL AGROTEKNOLOGI Vol 9 No 01 (2015)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (791.758 KB)

This research deals with identification of potential flood discharge from 15 watersheds located in Eastern Part of East Java Province. Recorded times series of daily discharges data are used as main input for the analysis. The discharge data for each watershed are rangked from lowest to high value. Then, the value of discharge correspond to quantile 90% (Q90) is calculated and determined as the threshold level for each watershed. In this case, discharge data more than > Q90 value is categorized as flood events. Then, the frequency of flood events are calculated based on monthly or annual time interval. Furthermore, spatial distribution of flood events are visualized by comparing the frekuency of flood events amongs the watersheds. Finally, thematics maps corresponde to waterheds properties, frequency of flood events, and rainfall event are presented.Keywords: Threslod level method, waterheds, flood indice, East Java

UJI KEANDALAN MODEL SACRAMENTO PADA DAS BEDADUNG DAN DAS KLOPOSAWIT Sri Wahyuningsih; Elida Novita; . Indarto
JURNAL AGROTEKNOLOGI Vol 4 No 01 (2010)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (663.745 KB)

Sacramento model is once of rainfall runoff Library (RRL) model which used to measure the flow components that include rainfall, evaporation and discharge. Sacramento model using soil moisture measurements to simulate the water balance at the catchment area. Sacramento model is a relatively new model so needs to be done the testing of this model. The testing process is often used for modeling is a process of calibration and validation. Aim this study is to evaluate the feasibility of the Sacramento model to be applied in the Bedadung and Kloposawit watershed and compare the optimal parameters the both watersheds on the basis of their characteristics. The methodology used is the calibration and validation. Calibration is done by automatic methods (generic) and the method of trial and error (manually) while the method for validating is simple-sample test. The results showed that the Sacramento model proper to applied in the Bedadung and Kloposawit watershed. This is indicated by the Nash coefficient, the coefficient of correlation and bias. By using generic methods on Bedadung watershed available the Nash coefficient value of 0.849, the correlation coefficient for 0.993 and bias of 8.11. Meanwhile, if using manual methods will be obtained the Nash coefficient for 0.906 and correlation coefficient equal to 0.997. While the generic calibration method in the Kloposawit watershed available the Nash coefficient values obtained for 0,894, the correlation coefficient for 0.967 and bias of 11.11. Meanwhile, if using manual methods will be obtained for Nash coefficient is 0.918 and correlation coefficient equal to 0968. The method of validation model with a simple -sample test. The result of validation for Klopo sawit watershed is the Nash coefficient value of 0.913 and the correlation coefficient for 0.989. While the Bedadung watershed is the Nash coefficient value of 0.860, the correlation coefficient for 0.991.Keywords: sacramento, calibration, validation, simple-sample test, nash coefficient

STUDI PENDAHULUAN TENTANG PENERAPAN METODE AMBANG BERTINGKAT UNTUK ANALISIS KEKERINGAN HIDROLOGI PADA 15 DAS DI WILAYAH JAWA TIMUR Indarto Indarto; Sri Wahyuningsih; Muhardjo Pudjojono; Hamid Ahmad; Ahmad Yusron
JURNAL AGROTEKNOLOGI Vol 8 No 02 (2014)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.77 KB)

This research deals with identification of potential hydrological drought at 15 watersheds in Eastern part of East Java Province. Hydrological drought events is indicated by water deficits at the main river of the watersheds during certain period of record. Discharge data from 15 watersheds in East Java are used as main input for this analysis. TLM modul based on HydroOffice platform is used to calculate the deficit. Deficit event is counted when the discharge during more than > 7 days is below the threshold level. The threshold level is set up using percentile 90% (Q90). The value of Q90 is determined from discharge times series. Furthermore, the discharge is rangked from high to low flow. Results from TLM are then imported to EXCEL for further analysis. Furthermore, GIS software package (Quantum GIS) is used for mapping the spatial variation of discharge values (avarage, maximum, Q90), frequency and duration of deficits events. This analysis produces the spatial maps of discharge value and deficit events ( averaged annually).Keywords: TLM, hydrological drougth, percentile 90 (Q90), discharge

KOMPARASI PROSES FITOREMEDIASI LIMBAH CAIR PEMBUATAN TEMPE MENGGUNAKAN TIGA JENIS TANAMAN AIR Elida Novita; Agnesa Arunggi Gaumanda Hermawan; Sri Wahyuningsih
JURNAL AGROTEKNOLOGI Vol 13 No 01 (2019)
Publisher : Faculty of Agricultural Technology, University of Jember

Tempe waste water contains high organic matter because the raw material used to making tempe (soybean) containing protein. If tempe waste water thrown away directly into environment, it would cause water pollution, destroy the habitat of aquatic biota and causing foul odor. One of the easy efforts to reduce the impact is using phytoremediation. The aim of this research was to know the best treatment to decrease parameter such as BOD, COD, TSS, pH, turbidity and N of the tempe waste water by aquatic plants, i.e. water hyacinth (Eg), water spinach (Ka) and water lettuce (Ki). The research was conducted in laboratory experiment scale using aquarium with length of 40 cm, width of 15 cm and tall of 25 cm to each treatment with 3 replications. The data were analyzed descriptively. It was to determined the best treatment of the aquatic plant that has highest efficiency to decrease negatively parameter of waste water quality. The result showed that the applied of water hyacinth (Eg) was the best treatment in decreasing parameter of tempe waste water quality with efficiency value, such as turbidity of 85.03%; TSS of 66.44%; COD of 59.11%; BOD of 77.91% and N of 61.77%. Keywords: phytoremediation, tempe waste water, water hyacinth, water lettuce, water spinach

DAYA TAMPUNG SUNGAI REMBAGAN TERHADAP BEBAN PENCEMARAN MENGGUNAKAN METODE STREETER-PHELPS Sri Wahyuningsih; Elida Novita; Irfan Dwi Satya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 2 (2021): Juni
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i2.209-219

Rembagan River is the main tributary of the Bedadung River in Cangkring Village, Patrang District, Jember Region. Various community activities in the Rembagan River area such as bathing, washing, defecating and urinating as well as agricultural activities will produce domestic and agricultural waste. These wast can cause river water pollution, especially water quality degradation. then the research needs to be done an analysis of the capacity of the Rembagan River in receiving pollution costs. The purpose of this study is to find out how much the ability of the Rembagan River to accept the burden of pollutants using the Streeter-Phelps method. Streeter-Phelps modeling takes into account two phenomena, namely the process of measuring dissolved oxygen (deoxygenation) and the process of increasing dissolved oxygen (reaeration). The results obtained from these calculations are oxygen drop curves determined on the basis of oxygen deficit values. The average values of deoxygenation rate and reoxygenation rate were sequentially 1.58931 mg/L/day and 10.09982 mg/L/day. So that self-purification can run well which means the water quality of the Rembagan River was still relatively good. This can be seen in the DO model pattern that goes up in each segment. The actual DO of 5.6760 mg / L was greater than the DO standard of class III quality of 3 mg / L. It can be interpreted that the Rembagan River still has a remaining DO of 2.676 mg / L and was still able to accept pollution cost of 18.8 kg/day. Keywords: pollution load, Rembagan River, river capacity

Co-Authors . Indarto Afro Aransa Sahat Agnesa Arunggi Gaumanda Hermawan Agustina Widayati Ahmad Yusron Askin Askin Ayu Dyah Maharani Bambang Marhaenanto Charisna Adinda Dedy Wirawan Soedibyo Deffa Khoirulloh Deni Agung Idayana Diah Meyshita Utari Dian Purbasari Dimas Ghufron Ash-Shiddiq Dwi Agustina Dwi Andriana Na'imatul Jannah Dwi AndrianaNa’imatul Jannah Elda Novita Elida Novita Ernawati Ernawati Farida Wahyu Ningtyias, Farida Wahyu Fety Dwi Anggraini Hamid Ahmad Hamid Ahmad Hamid Ahmad Hendra Andiananta Pradana Hendra Andiananta Pradana Husnul Khotimah Idah Andriyani Idah Andriyani IIN LIASASI Ika Rini Puspitasari Ika Usiawati Indarto - Indarto - Indarto Indarto Indarto Indarto indarto indarto Irfan Dwi Satya Isnaini Isnaini Kiki Paradiba Mastuki Andika Mohamad Ihya Ulum Muddin Muhamad Derajat Karim Muhardjo Pudjojono Muhardjo Pudjojono Muharjo Pudjojono Musviro Muthmainah Zakiyyah Muthmainnah Zakiyyah Nova Hikmawati Nurul Hayati R Endro Sulistyono Rahayu Ningtias Reo Nurdiansyah Ramadhan Rizky Fathonah Imami Sayyidatina Alfu Nuriyah Shofa Tri Fatmawati Siska Suryaningtias siswoyo soekarno Siti Nur Aziza Soni Sisbudi Harsono Subdatul Widad Suhardjo Widodo Dan Syaifuddin Kurnianto Tino Bachtiar Tri Galih Yudhatama Triesnawati Ersyad Trioda Rizqi Nurcahyo Zainul Arifin

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