Article Per Year (5 Year)
p-Index From 2021 - 2026
0.562
P-Index
This Author published in this journals
All Journal ASEAN Journal of Systems Engineering Jurnal technoscientia International Conference on Coastal and Delta Areas Journal of Research and Technology KACANEGARA Jurnal Pengabdian pada Masyarakat Jurnal Rekayasa Lingkungan JURNAL TEKNOLOGI TECHNOSCIENTIA
Indrawati, Rosiana
Institut Teknologi Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

Published : 19 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 19 Documents
Search

 1   2 
PURIFIKASI BIOGAS MENGGUNAKAN PELET SEKAM PADI TERAKTIVASI UNTUK MENINGKATKAN KONSENTRASI CH4 DALAM BIOGAS Rosiana Indrawati; Joko Susilo
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1073.422 KB) | DOI: 10.34151/technoscientia.v11i1.113

Abstract

The availability of fossil fuels as the main supplier of national energy is increasingly expensive and limited. Biogas appears as an alternative energy source. The purity of CH4 produced by biogas becomes very important, because it affects the calorific value produced. This study aims to determine the effect of biogas purification using rice husk pellet adsorbent on CH4 content in biogas. The independent variable is the height of the adsorbent 5 cm, 10 cm and 15 cm. Contact time is 30 minutes, 60 minutes and 90 minutes. While the controlled variables include activation of adsorbents with heating temperatures of 1200C. The dependent variable observed was the percentage of CH4 content before and after purification. Sampling was carried out on day 20. Based on the gas chromatography test results showed that the largest CH4 gas content was found in SPWT90TA5 purification reactor, rice husk adsorbent namely 5 cm adsorbent height variation and 90 minutes residence time which was 32,393 with a percentage of CH4 content increase of 260.3% from the initial content of CH4 gas before the purification process which was 8.99. And the lowest CH4 gas content is in the SPWT60TA 10 sample which is 6.252 or reduced by 30% from the initial CH4 content before purification is carried out. The conclusion is that biogas purification using rice husk pellet adsorbent can adsorb impurities in biogas and increase methane levels in biogas.
SIMULATION OF POLLUTION LOAD CAPACITY USING QUAL2Kw IN BABON RIVER Hermin Poedjiastoeti; Rosiana Indrawati
International Conference on Coastal and Delta Areas Vol 1, No 2 (2015): the 2th International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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

Abstract

Babon River is one of the important rivers in Central Java through the Semarang Regency, Semarang City and Demak Regency. However, the amount of domestic, agricultural and industrial waste dumped into Babon River leads to increased pollution load and decrease in capacity. This study aimed to calculate the pollution load capacity using the Streeter Phelps method with appllied QUAL2Kw program to describing the quality of river water through the profiles of BOD, COD and TSS. And then it was compared with the standard stream due to Government Regulation No. 82/2001 about Management of Water Quality and Water Pollution Control. The study area includes Babon River from upstream to downstream that divided into 8 segments. The simulation BOD’s curve, COD’s curve and TSS’s curve results that maximum pollution load capacity of the Babon River for BOD and COD parameters contained in the segment 8 and the TSS parameter is in segment 2, while for the minimum pollution load capacity for BOD parameter contained in segment 1, COD in segment 6 and TSS in segment 7. The result of simulation due to pollution load capacity uses minimum flow rate is compared with Government Regulation No. 82/ 2001, it indicate that in segment 8 has no capacity for water quality standard class I, II and III with pollution load capacity of BOD ranged 24, 5 kg / day – 54,2 kg / day, and then the pollution load capacity of COD has exceeded the water quality standard class I of 42,1 kg / day, while pollution load capacity of TSS parameter meet the capacity of all classes.Keywords: Babon River, Pollution Load Capacity, Water Quality, QUAL2Kw
TEKNOLOGI PETERNAKAN TERPADU BERBASIS ENERGI BARU TERBARUKAN DI KABUPATEN TANGERANG Rosiana Indrawati; Sri Haryanti Prasetiyowati; Primanda Kiky Widyaputra
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 4, No 1 (2021): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v4i1.857

Abstract

Tangerang Regency has the largest cattle farm in Banten Province. Animal husbandry business activities can have a positive impact, namely increasing community economic activities, as well as negative environmental impacts, namely livestock waste both solid and liquid waste. Partners in this activity are the Arafah Agro livestock business group and Barokah UMKM located in Pakulonan Barat Village, Kelapa Dua District, Tangerang Regency. So far, livestock waste management is only limited to being collected and then used for plant fertilizer. The technology to be implemented is a biogas reactor with a capacity of 12 m3, a chopper, a feed mixer, a solar powered water pump and a 500 liter water reservoir, and a PLTS with a capacity of 300 WP. The stages of its activities start from identifying the real conditions of partners related to the application of technology, designing and making technology systems, testing the technology systems that have been made, and conducting training and mentoring to partners in operating and utilizing technology that has been disseminated. The output of this activity is the use of cow biogascoture for cooking and lighting for cages, the installation of a solar powered water pump to suck water from the well into the reservoir, which can later be used for drinking and bathing cows and other stable operations, grass chopper and feed mixer. help provide high quality cow feed, thereby increasing cow productivity by up to 50%.
PENURUNAN BOD PADA BIOGAS KOTORAN SAPI CAMPURAN LIMBAH CAIR RUMAH POTONG HEWAN (RPH) DENGAN VARIASI KECEPATAN DAN LAMA PENGADUKAN Rosiana Indrawati
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v10i2.92

Abstract

The scarcity of energy sources, especially fuel oil (BBM) has become a world problem. The abundant cattle dung in the community has not been optimally utilized. In addition, the slaughterhouse (RPH) wastewater has not been optimally utilized. The aim of this research is to know the effect of speed and duration of stirring to biogas volume and final BOD concentration on cow dung biogas mixture the slaughterhouse (RPH) wastewater. The experiment used biodigester reactor as much as 5 pieces, 1 as the controller without stirring and 4 others as the test digester with stirring. RPH0 as a control digester without stirring. Variation of stirring speed 5 and 10 rpm and stirring time 10 and 15 minutes. The volume of biogas is measured for 20 days. BOD levels are measured on the last day of the fermentation process. The experiment showed that the highest biogas volume was found on PK10L10 test digester that was mixture of cow dung and the slaughterhouse (RPH) wastewater with variation of 10 rpm and duration of stirring 15 minutes ie 1,331 m3, and the lowest biogas volume was 0,243 m3 in RPH0 digester. The highest decrease in BOD content was 37% in RK10L15 digester and the lowest decrease RK5L15 digester was 12%. The stirring process has a significant effect on biogas production and decrease of BOD concentration in the digester.
PURIFIKASI BIOGAS MENGGUNAKAN PELET SEKAM PADI TERAKTIVASI UNTUK MENINGKATKAN KONSENTRASI CH4 DALAM BIOGAS Rosiana Indrawati; Joko Susilo
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v11i1.113

Abstract

The availability of fossil fuels as the main supplier of national energy is increasingly expensive and limited. Biogas appears as an alternative energy source. The purity of CH4 produced by biogas becomes very important, because it affects the calorific value produced. This study aims to determine the effect of biogas purification using rice husk pellet adsorbent on CH4 content in biogas. The independent variable is the height of the adsorbent 5 cm, 10 cm and 15 cm. Contact time is 30 minutes, 60 minutes and 90 minutes. While the controlled variables include activation of adsorbents with heating temperatures of 1200C. The dependent variable observed was the percentage of CH4 content before and after purification. Sampling was carried out on day 20. Based on the gas chromatography test results showed that the largest CH4 gas content was found in SPWT90TA5 purification reactor, rice husk adsorbent namely 5 cm adsorbent height variation and 90 minutes residence time which was 32,393 with a percentage of CH4 content increase of 260.3% from the initial content of CH4 gas before the purification process which was 8.99. And the lowest CH4 gas content is in the SPWT60TA 10 sample which is 6.252 or reduced by 30% from the initial CH4 content before purification is carried out. The conclusion is that biogas purification using rice husk pellet adsorbent can adsorb impurities in biogas and increase methane levels in biogas.
PENURUNAN BOD PADA BIOGAS KOTORAN SAPI CAMPURAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT DENGAN VARIASI KECEPATAN DAN LAMA PENGADUKAN Indrawati, Rosiana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.937 KB) | DOI: 10.55732/jrt.v3i2.239

Abstract

The scarcity of energy sources, especially fuel oil (BBM) has become a world problem. The abundant cattle dung in the community has not been optimally utilized. In addition, the Tannery Industry (IPK) has not been optimally utilized. The aim of this research was to know the effect of speed and stirring duration to biogas volume and final BOD concentration on cow manure biogas mixed with tannery industry wastewater (IPK). The experiment used biodigester reactor as much as five pieces, one unit as a controller without stirring and four other unit as the test digester with stirring. IPK 0 as a control digester without stirring. Variation of stirring speed were 5 and 10 rpm, and stirring time were 10 and 15 minutes. The volume of biogas was measured for 20 days. BOD level was measured on the last day of fermentation process. The experiment results showed that the highest biogas volume was found on PK10L10 test digester that was mixture of cow manure and tannery industry wastewater (IPK) with variation of 10 rpm and duration of stirring 10 minutes ie 0.904 m3, and the lowest biogas volume was 0,158 m3 in IPK0 digester. The highest decreasing in BOD content was 20% in PK10L15 digester and the lowest decreasing IPK0 digester was 4%. The stirring process had a significant effect on biogas production and decreased BOD concentration in the digester. Keywords: BOD, Tannery Industry Wastewater, Biogas, Cow Manure.
PENURUNAN BOD PADA BIOGAS KOTORAN SAPI CAMPURAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT DENGAN VARIASI KECEPATAN DAN LAMA PENGADUKAN Indrawati, Rosiana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.239

Abstract

The scarcity of energy sources, especially fuel oil (BBM) has become a world problem. The abundant cattle dung in the community has not been optimally utilized. In addition, the Tannery Industry (IPK) has not been optimally utilized. The aim of this research was to know the effect of speed and stirring duration to biogas volume and final BOD concentration on cow manure biogas mixed with tannery industry wastewater (IPK). The experiment used biodigester reactor as much as five pieces, one unit as a controller without stirring and four other unit as the test digester with stirring. IPK 0 as a control digester without stirring. Variation of stirring speed were 5 and 10 rpm, and stirring time were 10 and 15 minutes. The volume of biogas was measured for 20 days. BOD level was measured on the last day of fermentation process. The experiment results showed that the highest biogas volume was found on PK10L10 test digester that was mixture of cow manure and tannery industry wastewater (IPK) with variation of 10 rpm and duration of stirring 10 minutes ie 0.904 m3, and the lowest biogas volume was 0,158 m3 in IPK0 digester. The highest decreasing in BOD content was 20% in PK10L15 digester and the lowest decreasing IPK0 digester was 4%. The stirring process had a significant effect on biogas production and decreased BOD concentration in the digester. Keywords: BOD, Tannery Industry Wastewater, Biogas, Cow Manure.
Inovasi Teknologi Produksi Gula Semut di Tasikmalaya Indrawati, Rosiana; Cahyono, Sigit; Putra, Dhafid Etana
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 3, No 1 (2020): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v3i1.477

Abstract

Gula merah merupakan produk olahan nira kelapa. Kabupaten Tasikmalaya merupakan kebupaten penghasil gula merah di Jawa Barat. Peluang pasar gula semut di Tasikmalaya belum diimbangi kemampuan pelaku usaha gula semut sekitarnya yang merupakan usaha berskala IKM. Promosi masih terbatas mulut ke mulut, variasi produk terbatas, motivasi pengembangan usaha yang rendah sekedar untuk memenuhi kebutuhan sehari-hari sehingga usaha berskala IKM tidak dapat mengembangkan usahanya. Harga penjualan rendah karena dikuasai oleh tengkulak yang melakukan penadahan terhadap produk industri gula semut. Berdasarkan permasalahan yang dihadapi oleh kedua mitra, solusi yang ditawarkan: Membuat mesin pengolahan berskala IKM untuk meningkatkan mutu produk gula semut itu sendiri, penerapan teknologi pengembangan mesin pengolahan gula semut skala IKM menjadi produk tepat guna sehingga meningkatkan pelaku usaha gula semut di Kabupaten Tasikmalaya. Pembuatan alat disesuaikan kebutuhan mitra, dan diujicobakan pada salah dua mitra yaitu Amis Budi dan Penyadap bagja yang berlokasi di Kp.Gunung Pendeuy, Kel.Sukamenak Kec.Purbaratu Kota Tasikmalaya. Kegiatan dilakukan melalui sosialisasi dan pelatihan. Antusias warga penggiat gula semut pada saat tim melakukan sosialisasi dan pelatihan terlihat sangat antusias. Kemampuan mitra dan masyarakat penggiat semut terkait penggunaan teknologi pengolahan gula semut semakin meningkat dan kegiatan pembuatan gula semut menjadi lebih ringan dari segi waktu dan tenaga. 
Diseminasi Teknologi Pengolahan Sampah Terpadu di Kabupaten Purworejo Indrawati, Rosiana; Hindarti, Fifin; Puspitasari, Amallia
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 3, No 1 (2020): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v3i1.540

Abstract

Household waste is one of the sources of waste which has a big role in environmental pollution. The community as a waste producer still lacks a high level of concern for waste management itself. Partners in this case are Bandungrejo Village Youth and Youth Youth Association of “Jaya Jaya” RT 02 RW 04 Bandungrejo Village Bayan District Purworejo District initiative to be able to manage the waste they produce so that it is not harmful to the environment while at the same time adding value to the income from the sale of processed waste. So in this case, the proposer has ideas to develop waste processing technology that can be utilized by partners in this case the community through the Appropriate Technology Application Program (PPTTG) in collaboration with the Ministry of Research, Technology and Higher Education with the House of Representatives Commission X. Activities undertaken i.e. to provide assistance in the form of an integrated waste processing machine as well as a waste management training. The tools provided include one unit of a plastic chopper machine, one unit of an organic chopper machine, one unit of an organic sieving machine, 20 unit of sorted waste bins, 20 units of composter and financial assistance for the construction of a waste processing building for the placement of these machines. This activity is expected to solve the problems of partners in waste management and improve the welfare of the community itself.
Co-Authors Cahyono, Sigit Fachri, Ahmad Hermin Poedjiastoeti Hindarti, Fifin Joko Susilo Joko Susilo Lintang Timur Mu’minin, Amirul Prasetiyowati, Sri Haryanti Primanda Kiky Widyaputra Puspitasari, Amallia Putra, Dhafid Etana Styana, Ucik Ika Fenti Triastianti, Rita Dewi