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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Agrikultura Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) ASAS : Jurnal Hukum Ekonomi Syariah Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura Planta Tropika Jurnal Hukum Novelty Kultivasi METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Biosaintifika: Journal of Biology & Biology Education Journal of Tropical Crop Science Jurnal Kesehatan Buletin Ilmiah Sarjana Teknik Elektro Jurnal Ilmiah Permas: Jurnal Ilmiah STIKES Kendal JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Journal of Energy and Electrical Engineering (JEEE) International Journal of Robotics and Control Systems Jurnal Ilmu Komputer dan Informatika Jurnal Locus Penelitian dan Pengabdian Jurnal Pengabdian Masyarakat Jurnal Pusat Inovasi Masyarakat Jurnal Ilmu Komputer dan Teknologi (IKOMTI) DEVICE : JOURNAL OF INFORMATION SYSTEM, COMPUTER SCIENCE AND INFORMATION TECHNOLOGY SEMINAR NASIONAL PENELITIAN DAN PENGABDIAN KEPADA MASYARAKAT Journal of Advanced Health Informatics Research Control Systems and Optimization Letters Jurnal Multidisiplin Pengabdian Masyarakat (JMPM) Jurnal Ilmiah Ekonomi Terpadu Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal)
Purwono Purwono, Purwono
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PENGGUNAAN TEKNOLOGI REAKTOR MICROBIAL FUEL CELLS (MFCs) DALAM PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU UNTUK MENGHASILKAN ENERGI LISTRIK Purwono, Purwono; Hermawan, Hermawan; Hadiyanto, Hadiyanto
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 12, No 2 (2015): September 2015
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (807.435 KB) | DOI: 10.14710/presipitasi.v12i2.57-65

Abstract

Microbial Fuel Cells (MFCs) adalah bioreaktor yang mengubah energi kimia dari senyawaorganik menjadi energi listrik melalui reaksi katalitik mikroorganisme dalam kondisi anaerob. Tujuandari penelitian ini adalah mengetahui pengaruh variasi media terlekat (attached growth media) danvariasi konsentrasi COD awal terhadap efisiensi penyisihan konsentrasi COD dan energi listrik yangdihasilkan. Reaktor MFCs didesain dalam bentuk dual-chamber yang dihubungkan menggunakanjembatan garam. Kerikil dan bioball digunakan sebagi variasi media lekat pada kompartemen anodadan konsentrasi limbah awal divariasikan dari 0%, 25%, 50%, dan 100% dari konsentrasi COD limbahcair industri tahu asli dengan cara melakukan pengenceran.Hasil penelitian menunjukkan bahwamedia lekat kerikil dengan konsentrasi 50% menghasilkan arus listrik rata-rata tertinggi 7,25 µA danenergi listrik sebesar 179,54 mWh. Voltase dan enegi listrik pada kedua variasi tersebut semakin harisemakin menurun. Variasi konsentrasi 25%, 50%, dan 100% menghasilkan penurunan nilai effisiensipenyisihan COD masing-masing 41,41%; 39,90% dan 18,26%.Pada variasi 100% menghasilkanenergi listrik lebih rendah dari pada 50%. Kemungkinan hal ini karena adanya senyawa sulfida yangberperan sebagai akseptor elektron. Pembentukan senyawa sulfida ditandai dengan terbentuknyawarna hitam pada substrat. Efisiensi coulombic (εC) akibat perbedaan media lekat dan variasikonsentrasi berada pada kisaran 0,001-0,035%. Rendahnya εC kemungkinan karena adanya produkproduk fermentasi dan biofilm pada elektroda anoda yang menghambat transfer elektron menujuelektroda anoda seperti biomassa, bahan organik terlarut, gas H2 dan gas CH4
Pemanfaatan Kitosan dan Teknologi Plasma untuk Penyisihan COD, TSS, dan Warna pada Limbah Cair Industri Paper & Packaging Saphira, Debby Bella; Syakur, Abdul; Purwono, Purwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 14, No 2 (2017): September 2017
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.388 KB) | DOI: 10.14710/presipitasi.v14i2.62-67

Abstract

Industri paper & packaging adalah industri yang menghasilkan limbah cukup banyak karena kegiatan produksi yang berlangsung terus-menerus. Salah satu limbah yang dihasilkan adalah limbah cair yang mengandung COD, TSS, dan warna yang tinggi dan berpotensi untuk mencemari lingkungan apabila tidak diolah. Pengolahan yang dilakukan adalah pretreatment koagulasi-flokulasi dan pengolahan selanjutnya dengan teknologi plasma tegangan tinggi. Hasil pengolahan menggunakan koagulasi-flokulasi menggunakan koagulan kitosan menunjukkan terjadinya penyisihan konsentrasi optimal pada dosis 40 mg/l dengan efisiensi penyisihan COD 81,35%, TSS 96,34%, dan warna 98,18%. Kemudian limbah diolah dengan teknologi plasma dengan tegangan tinggi 15 kV dan variasi waktu kontak 10, 20, 30, 40, 50 menit. Didapatkan hasil optimal pada waktu 50 menit pada penyisihan konsentrasi COD, TSS, maupun warna. Diketahui bahwa semakin lama waktu kontak limbah dengan plasma tegangan tinggi maka semakin banyak spesies aktif pendegradasi limbah seperti H•, OH•, dan H2O2 yang terbentuk sehingga pendegradasian limbah akan semakin lebih baik.Kata kunci: COD, Koagulasi-Flokulasi, Limbah Industri Paper & Packaging, Teknologi Plasma, TSS, Warna.
PENGGUNAAN BIOCATALYS ELECTROLYSIS DALAM PENURUNAN KONSENTRASI TOTAL SUSPENDED SOLID (TSS) DAN CHEMICAL OXYGEN DEMAND (COD) LIMBAH DOMESTIK Oktiawan, Wiharyanto; Hadiwidodo, Mochtar; Purwono, Purwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 13, No 2 (2016): September 2016
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.443 KB) | DOI: 10.14710/presipitasi.v13i2.81-87

Abstract

Secara umum air limbah kegiatan rumah tangga (domestik) dibuang langsung menuju badan air seperti sungai dan danau. Pengolahan limbah cair secara biologis (aerob) sering menghasilkan lumpur dalam jumlah besar. Jumlah lumpur dapat dikurangi dengan pengolahan anaerob. Sistem bioelektrokimia merupakan salah satu terobosan teknologi yang memungkinkan untuk mengolah limbah sekaligus menghasilkan energi berupa gas metana. Penggunaan biocatalys electrolysis dapat mengatasi kelemahan proses anaerob secara konvensional dalam penurunan konsentrasi TSS dan COD limbah domestik salah satunya mampu menghasilkan gas H2 dari proses elektrolisis. Penambahan daya ekternal sebesar 6 volt mampu menyisihkan TSS sampai kadar 82 mg/l dari kadar semula 157 mg/l. Tegangan 12 volt mampu menurunkan kadar COD sampai 47,46 mg/l dari kadar awal 223 mg/l. Penyisihan TSS paling rendah pada waktu elektrolisis 15 menit dengan kadar 87 mg/l. Penambahan waktu elektrolisis sebanding dengan penurunan konsentrasi COD limbah domestik. Pada penelitian ini kualitas maupun kuantitas gas metana tidak diketahui secara jelas. Selain gas metan, produk fermentasi juga belum diketahui.
FAKTOR LINGKUNGAN SOSIAL, LINGKUNGAN FISIK, DAN PENGENDALIAN PROGRAM DBD TERHADAP KEJADIAN DEMAM BERDARAH DENGUE (DBD) Murwanto, Bambang; Trigunarso, Sri Indra; Purwono, Purwono
Jurnal Kesehatan Vol 10, No 3 (2019): Jurnal Kesehatan
Publisher : Politeknik Kesehatan Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.457 KB) | DOI: 10.26630/jk.v10i3.1424

Abstract

Dengue Bedarah Fever (DHF) one of the problem of the disease in Indonesia and including 30 countries in the world endemic for dengue disease, even though be second place disease in 2015 with a Case Fatality Rate (CFR) of 0.95%. Besides in Lampung in the last three years (2014-2016) tendency for Incidence Rate (IR) is increasing. In South Lampung Regency as the gateway to Sumatra Island in 2017 the Incidence Rate (IR) averaged 20.78% and one of the highest Incidence Rate (IR) reached 70.59% in the Hajimena Health Center Working Area, Natar District. The purpose of this study was to find out the relationship between the factors of the Social Environment, Physical Environment, and the Factors of Controlling the DHF Control Program, and factors were the most dominant relationships. The research method is quantitative with the Cross-Sectional approach, with the study population in the Hajimena Community Health Center Working Area, Natar District, which includes three villages namely Hajimena village, Sidosari village, and the Pemanggilan village. Primary data is taken using questionnaires and checklists, and secondary data is sourced from Puskesmas and Kecamatan. Processing data using data processing software by analyzing using univariate, and bivariate methods. The results of this study show that there is a meaningful relationship are the mobility of the population with the incidence of disease. To eradicate dengue in the Natar sub-district, especially the Hajimena Public Health Center area which is an endemic area, it also requires comprehensive and integrated activities, namely PSN-DBD with periodic larvae checks by cadres of the Larvas Monitoring.
Genetic Parameters of Agronomic Traits in Sweetpotato Accessions Rahajeng, Wiwit; Restuono, Joko; Indriani, Febria Cahya; Purwono, Purwono
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 2 (2020): August 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i2.23780

Abstract

Germplasm as a source of genes in sweetpotato breeding requires information on appearance and genetic parameters. The objectives of this research were to determine the performance and genetic parameters of sweet potato accessions. The research was conducted at Kendalpayak Research Station, Malang, East Java, Indonesia. The materials used were thirty sweet potato accessions from Indonesian Legumes and Tuber Crops Research Institute (ILETRI) germplasm collection. The research was arranged in a Randomized Block Design (RBD) with two replications. The variables observed included: the vines length, the weight of vines, the number and weight of the saleable root per plot, the number and weight of the non-saleable root per plot, the number and weight of root per plant, the root yield, the harvest index, and the dry matter content. The results of ANOVA showed a significant difference among the tested genotypes in almost all traits observed except on weight of non-saleable root. PCV estimation was higher than GCV estimation for all the observed characters. The weight of the saleable root per plot, the weight of root per plant, and the root yield that showed a wide range of PCV and GCV as well as high broad-sense heritability indicated that these traits had additive gene effect and more reliable for effective selection. The broad GCV in a population is effective for selection to obtain the superior variety.
Tingkat Korosifitas Air Permukaan Hilir Rawa Pening pada Musim Kemarau dan Penghujan Purwono, Purwono; Oktiawan, Wiharyanto; Istirokhatun, Titik; Nurfaiz, Agus
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 3 (2020): November 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.763 KB) | DOI: 10.14710/presipitasi.v17i3.215-222

Abstract

Corrosion is an important factor that can affect the quality of air used by humans. This has an impact on health and economic factors, damage to air distribution equipment. The level of corrosivity of surface water as raw water for drinking water is important to be examined before the water enters the processing process or other uses such as hydroelectric power (PLTA). This study aims to measure the level of water corrosivity on the surface of the Pening swamp during the dry and rainy seasons in 2018. Taking air samples on the surface of the Pening swamp, then carrying out laboratory tests on the parameters of air corrosivity. The results showed that the downstream surface of the Pening swamp was not corrosive in terms of pH, temperature, TDS, and chloride parameters. The pH value in the dry season (J1) is 7.00, while in the rainy (J2) it is 7.77 and is non-corrosive. The temperature values are 28.6oC and 29.3oC in the rainy and dry seasons, respectively. The TDS measurement results in the dry season are lower than the rainy season by a difference of 12 mg / l. In the dry season it is 141 mg / l and the rainy season is 153 mg / l. This increase probably came from geological material (geological material) such as rocks and soil around the Pening Swamp Lake. Other sources of TDS include urban land, road workers, agricultural land and pasture. Human activities also increase in the increase of TDS in water including domestic activities (bathing and washing), trade, and industry. Chloride levels were 2.19 mg / l and 3.19 mg / l. This research has implications for the users of Sungai Pening Swamp. The corrosivity of air measurement is also by microbiological parameters which need to be investigated further.
The Application of Filter Cake Compost to Improve The Efficiency of Inorganic Fertilizer in Upland Sugarcane (Saccharum officinarum L.) Cultivation Wibisana, Dharend Lingga; Purwono, Purwono; Yahya, Sudirman
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 8, No 2 (2020)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2020.119.93-102

Abstract

The production of sugarcane in 2018 decreased due to the change in the cultivation method from lowland to upland. This research aimed to study the responses of growth and yield of two sugarcane varieties to the application of filter cake compost and inorganic fertilizer in upland sugarcane cultivation. This experiment was arranged in a split-split plot design consisting of three-factors, which were sugarcane varieties, the levels of filter cake compost, and the rates of inorganic fertilizer, assigned to the main plot, sub-plot, and sub-sub plots, respectively. The two sugarcane varieties were PS 881 and PS 862. The three levels of filter cake compost were 0, 5, 10 tons ha-1, and the four rates of inorganic fertilizers (percent of recommended dosage) were 25%, 50%, 75%, and 100%. The results showed that the growth and yield of PS 862 was better than that of PS 881, shown in the plant height, stem diameter, number of stems, and the length of internodes. The use of filter cake compost at a dose of 5 tons ha-1 was more efficient, and it could provide an efficiency of 0.097 tons per kg of cane at a dose of 76.76% inorganic fertilizer. Yet, it cannot reduce the use of inorganic fertilizer in producing sugarcane yield.
Evaluation of Promising Sweet potato Clones for Higher Root Yield and Dry Matter Content Rahajeng, Wiwit; Restuono, Joko; Indriani, Febria Cahya; Purwono, Purwono
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 9, No 1 (2021)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v9i1.6026

Abstract

Dry matter content is one of the important characteristics of sweet potatoes in addition to high yield. The aim of this study was to evaluate the performance of promising sweet potato clones for higher root yield and dry matter content. A hundred promising sweet potato clones were evaluated and arranged in randomized block design with two replication. The variables observed included: weight of vine, harvest index, number of root per plot, the weight of root per plot, dry matter content, root yield, root skin color, and flesh color. The analysis of variance showed a significant difference among the tested genotypes in all traits observed. A hundred promising sweet potato clones showed that root yield has varied ranged from 4.88–41.38 t h-1 with an average 20.28 t h-1 and dry matter content ranged from 19.19 – 40.65% with an average 30.47%. Fifteen promising clones of a hundred clones tested had high root yield and dry matter content with varying color flesh.
Soil nutrient and invertase-producing bacteria relation impact on Cilembu sweet potato (Ipomoea batatas L.) growth: A study based on upland and wetland cultivation in Cilembu village Sumedang district Solihin, Eso; Anwar, Syaiful; Santoso, Dwi Andreas; Nugroho, Budi; Purwono, Purwono; Sudirja, Rija; Maulana, Haris; Kamaluddin, Nadia Nuraniya; Karuniawan, Agung
Kultivasi Vol 22, No 1 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i1.45353

Abstract

The environment is one important factor that must be considered in supporting sweet potato productivity. Environmental factors can be biotic and abiotic, including the availability of nutrients and microbes in the soil. This study aims to identify the nutrient content of the soil in wetland and upland, identify the total invertase microorganisms in wetland and dupland, and identify the relationship between soil nutrients and microorganisms during the growth of Cilembu sweet potato in dry and wetland agroecosystems. This research was conducted on upland and wetland in Cilembu Village, Sumedang Regency. The experimental design used was a single randomized block design (RBD) with six treatments and three replications:  A; Rancing, wetland, B; Biang wetland, C; Mencrang wetland, D; Rancing, uplands, E; Biang, uplands, F; Mencrang, upland. Parameters observed included pH, C-organic, total-N, available-P, exchangeable K, exchangeable Na, exchangeable Ca and exchangeable Mg, CEC, and total invertase-producing bacteria. The results showed that in wetland nutrient content such as N, P, exchangeable Ca,  Mg, Na, CEC, C-organic and pH tended to be more available. K content and abundance of invertase bacteria are more available in upland. The availability of invertase bacteria has a close relationship with the K content. The information generated in this study can be used as a basis for determining an effective location to produce good quality.
Prediksi Kanker Darah Menggunakan Metode Convolutional Neural Network Istiqomah, Hani; Purwono, Purwono; Ardianto, Rian
Jurnal Ilmu Komputer dan Informatika Vol 4 No 1 (2024): JIKI - Juni 2024
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jiki.156

Abstract

Leukemia pada anak-anak di Indonesia menjadi perhatian serius dalam bidang kesehatan karena variasi tingkat kelangsungan hidup dan dampak negatif dari pengobatan. Penelitian ini bertujuan meningkatkan deteksi dini dan pengelolaan leukemia pada anak-anak melalui penerapan metode Convolutional Neural Network (CNN). Metode yang digunakan adalah arsitektur MobileNetV2 untuk mengklasifikasikan gambar sel darah terkait kanker darah. Dataset yang digunakan berisi 3257 gambar sel darah yang telah dipreproses menjadi resolusi 300x300 piksel. Hasil penelitian menunjukkan bahwa implementasi CNN dengan arsitektur MobileNetV2 menghasilkan akurasi 95.6%, presisi 94.8%, recall 96.2%, dan F1-score 95.5%. Evaluasi model menggunakan confusion matrix menunjukkan tingkat kesalahan yang rendah dalam klasifikasi gambar normal dan leukemia, menyoroti efisiensi dan efektivitas MobileNetV2 dalam klasifikasi gambar medis.
Co-Authors Adji, Diva Permata Adriani, Vita Afrilies, Marlia Hafny Agung Karuniawan AHMAD JUNAEDI Ainurrofiq, Mohammad Naffah Alfian Ma’arif Anas Dinurrohman Susila Anik Sarminingsih, Anik Annastasya Nabila Elsa Wulandari Annida Unnatiq Ulya Ardhi Ristiawan Ardianto, Rian Arfianto, Irfan Arif Setia Sandi A. Arya Rezagama Bala Putra Dewa Basil, Noorulden Budi Nugroho Cahyani, Gesa Nur Deli, Syekh Zulfadli Arofah Dewa, Bala Putra Dharend Lingga Wibisana Dita Purwinda Anggrella Dyah, Dwi Tristining Eka Maulidiya, Sherly Eka Wardhani S., Eka Eso Solihin Fadillah, Arvin Muhammad Fakhri Zahi Mumtaza Fathurrahman, Haris Imam Karim Fathurrohman Husen Fatmawati, Puput Yosi Febria Cahya Indriani Fitriansyah, Muhammad Ramdhani Frisky, Aufaclav Zatu Kusuma Frutos, Roger Garunja, Evis Hadi Jayusman Hadiyanto Hadiyanto Hamdani, Kiki Kusyaeri Haq, Qazi Mazhar ul Hermanto Hermanto Hermawan Hermawan I Ketut Suada Imam Ahmad Ashari Imam Ahmad Ashari, Imam Ahmad Indriyanto, Jatmiko Irdika Mansur Istiqomah, Hani Janu Saptari, Janu Jayusman, Hadi Josef, Hari Kusnanto Ketty Suketi Khairani Khairani KHOIRUN NISA Kurniawati, Ari Lutviana Lutviana, Lutviana Mahfud Afandi, Mahfud Mangkunegara, Iis Setiawan Marhoon, Hamzah M. Marlin Sefrila Maulana, Haris Maya Melati Mei Ahyanti Mia Yustika, Mia Mochtar Hadiwidodo Mohamad Rahmad Suhartanto Mohammad Fatkhul Mubin, Mohammad Fatkhul Monica Puspa Dewi Muhammad Amin Bakri Mukhlishin , Mukhlishin Munif Ghulamahdi murwanto, bambang Nadia Nuraniya Kamaluddin Nandang Hermanto Novieta Hardeani Sari Nurfaiz, Agus Nurhalizah, Ria Suci Nurul Fajri Ramadhani, Nurul Fajri Nurwulan Purnasari Pangesti, Lintang Desy Pascawati, Nur Alvira Prabowo, Zuhda Nur Purwaningsih, Wida Putra, Jessa Syah Putri, Korisa Putri, Lystiana Dewi Rachman Hidayat Rahayu, Nur Laila Rahmaniar, Wahyu Restuono, Joko Rija Sudirja Rumbiwati, Rumbiwati Safa Kiana Salah, Wael A. Sandra Arifin Aziz Santoso, Dwi Andreas Saphira, Debby Bella Sarwono Sarwono Satriya Pranata Sefrila, Marlin Septin Puji Astuti Setiyaningrum, Ika Feni Setyo Supratno Sharkawy, Abdel-Nasser Silviani, Wahyu Dian Simanjuntak, Efendi Siti Aisah Sudirman Yahya Suryo Wiyono Syaiful Anwar Tazhdinov, Magomed Titik Istirokhatun Tri Baskoro Satoto, Tri Baskoro Tri Yulianti Tri Yulianti, Tri Trigunarso, Sri Indra Tristiyaningrum, Diana Tuny, Nurfitriyana Vranada, Aric Wiharyanto Oktiawan Wiwit Rahajeng Wulandari, Annastasya Nabila Elsa Y.Paidjo Y.Paidjo, Y.Paidjo Yuris Tri Naili