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All Journal JURNAL TEKNOLOGI LINGKUNGAN Jurnal Ketahanan Nasional Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Sistem : Jurnal Ilmu-Ilmu Teknik Seminar Nasional Teknologi Informasi Komunikasi dan Industri SENTIA 2016 Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Al-Ard: Jurnal Teknik Lingkungan Scientific Journal of Mechanical Engineering Kinematika Envirous Indonesian Journal of Advanced Social Works (DARMA) (Journal of Environmental Sustainability Management)

Erry Ika Rhofita, Erry Ika

Unknown Affiliation

Author-ID : 630888

Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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PENURUNAN KADAR FREE FATTY ACID (FFA) PADA REAKSI ESTERIFIKASI DALAM PROSES PRODUKSI BIODIESEL : KAJIAN WAKTU REAKSIDAN TEMPERATUR REAKSI Rhofita, Erry Ika
SISTEM Jurnal Ilmu Ilmu Teknik Vol 11 No 1 (2015)
Publisher : Fakultas Teknik Universitas Wisnuwardhana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.164 KB)

Kadar asam lemak bebas (FFA) minyak yang tinggi dalam proses pembuatan biodiesel menyebabkan terjadinya reaksi saponifikasi yang akan berakibat pada penurunan kadar FAME (fatty acid methyl ester). Kadar FFA yang tinggi dapat diturunkan dengan mereaksikan minyak dengan metanol dengan bantuan katalis asam H2SO4 yang lebih dikenal dengan reaksi esterifikasi. Pada reaksi esterifikasi didapatkan kondisi optimal waktu reaksi 120 menit dengan temperatur reaksi suhu 60°C dengan penggunaankatalisH2SO4 sebanyak 5 ml. Pada kondisi ini kadar FFA dapat diturunkan 80% dari kadar FFA awal minyak

PEMANFAATAN MINYAK JELANTAH SEBAGAI BIODIESEL: KAJIAN TEMPERATUR DAN WAKTU REAKSI TRANSESTERIFIKASI Rhofita, Erry Ika
SISTEM Jurnal Ilmu Ilmu Teknik Vol 12 No 3 (2016)
Publisher : Fakultas Teknik Universitas Wisnuwardhana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (146.581 KB)

The production of biodiesel from waste cooking oil as an effort to reduce environmental pollution and it’s production cost . Free fatty acid content is high on used cooking oil is required twice in the biodiesel production process, namely the process of esterification and transesterification. The success is determined by the transesterification reaction temperature, reaction time, the rotation speed of the stirrer, the catalyst, the molar ratio of methanol, a type of alcohol, FFA content material; and the moisture content of materials. In this research study ditekannkan the transesterification process, especially changes in temperature (50oC, 55oC, 60oC, 65oC, and 70 oC) and time (30,60,90, and 120 minutes) to yield the amount of biodiesel. The results of GC-MS testing on used cooking oil is known that the content of lauric acid and palmitoleic acid contained in the raw material for biodiesel used cooking oil at 0% and 4.6 Wt% Wt, and FFA content of 9.67%. Transesterification optimal temperatures between 60oC to 65oC, capable mengahsilkan biodiesel yield of> 93%. Total yield of biodiesel produced in 30 minutes transesterification reached 80%, and 60 minutes to reach 90%.

Pemanfaatan Limbah Jerami Padi Di Desa Garon Kecamatan Balerejo, Kabupaten Madiun Rhofita, Erry Ika; Chana AW, Liliek
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 2, No 2 (2019): Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS)
Publisher : University of Islam Malang

Greenhouse gas emissions are an environmental issue that has an impact on climate change and global warming. One of the cause is the burning of rice straw after harvest in the field. The existence of majelis taklim is not only religious facilities, and itâ€™s as a way to community empowerment. QS. As-Sad 27 and QS Al-Anbiya 16 explains that everything created by Allah SWT with all aims and benefits. Generally, rice straw is perception as a waste, but if it utilised with science and technology will be able to improve the use of value and economic value. 82,19% and 79,45% of the members of majlis taklim have perception that utilizing of rice straw can improve their income and part of the sustainable environmental management. And 94,25% of the members of majelis taklim did not utilise rice straw and burned it in the field. They did not have skills and knowledge to utilise of the rice straw. Furthermore, training and education must be conducted regularly.

Efektifitas Kinerja Instalasi Pengolahan Air Limbah (IPAL) Industri Gula di Kabupaten Kediri dan Kabupaten Sidoarjo Rhofita, Erry Ika; Russo, Aldentio Emir
Jurnal Teknologi Lingkungan Vol. 20 No. 2 (2019)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

ABSTRACTWastewater from sugar industries has complex characteristics and depends on the production capacity. The main aim of this study is to determine the effectiveness of the waste water treatment processes (WWTP) of two sugar factories PG. Kediri and PG. Sidoarjo in reducing pH, BOD, COD, and TSS during year 2016 and 2017. Wastewater influents in both factories exceeded the water quality standards of Ministry of Environment Regulation Number 5 Year 2014. After treatments, water quality parameters of the effluents including pH, BOD, COD and TSS were significantly decreased. The effectiveness of the PG Kediri WWTP in reducing BOD, COD and TSS was 98.52%; 98.47% and 91.51% respectively. The effectiveness of PG Sidoarjo WWTP in reducing BOD, COD and TSS was 5-20% lower than that of PG. Kediri. Keywords: effectiveness performance, WWTP, sugar industry, wastewaterÃ‚Â Ã‚Â ABSTRAKLimbah cair yang dihasilkan oleh industri gula memiliki karakteristik yang kompleks dan bergantung pada kapasitas produksi. Pengolahan limbah cair dilakukan secara fisika dan biologi untuk mengurangi konsentrasi bahan pencemar yang menjadi permasalahan lingkungan. Tujuan dari penelitian ini adalah untuk mengetahui efektifitas kinerja IPAL di PG. Kediri dan PG. Sidoarjo dalam menurunkan konsentrasi pH, BOD, COD dan TSS selama tahun 2016 dan 2017. Sebelum pengolahan air limbah memiliki konsentrasi tinggi melebihi ambang batas baku mutu air limbah yang ditetapkan oleh Peraturan Menteri Lingkungan Hidup RI No. 5 Tahun 2014. Setelah dilakukan pengolahan terjadi penurunan konsentrasi pH, BOD, COD, dan TSS secara signifikan yang diukur di bagian outletÃ‚Â IPAL. Besarnya efektifitas kinerja IPAL di PG Kediri dalam menurunkan konsentrasi BOD, COD, dan TSS sebesar 98,52%; 98,47%; dan 91,51%. Berbeda dengan nilai efektifitas kinerja IPAL di PG Sidoarjo yang lebih rendah 5 sampai 20% dari efektifitas PG. Kediri.Kata kunci: efektifitas kinerja, industri gula, IPAL, limbah cair

Optimalisasi Sumber Daya Pertanian Indonesia untuk Mendukung Program Ketahanan Pangan dan Energi Nasional Erry Ika Rhofita Rhofita
Jurnal Ketahanan Nasional Vol 28, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jkn.71642

ABSTRACTAs an agricultural country, Indonesia had abundant natural resources necessary to realized national goals. Natural resources, particularly agriculture, had focused on achieving food resilience throughout history. At the same time, it could also be used to enhanced the energy resilience program by utilizing the agricultural residue as a raw material for bioenergy production. Moreover, since 2019, the Covid-19 pandemic had threatened national stability, including food resilience and the economy. Hence, the Indonesian government decided to developed a food estate program in several provinces through marginal land intensification to produced the food. This study aimed to assessed the agricultural resources' potential to supplied food and energy and its optimization strategies to realized the national defense goals. The research design of this study used descriptive analysis to evaluated the state of agricultural resources. In addition, a resource-focused approach was used to figured out the theoretical potential energy of agricultural residue based on data from each year and the characteristics of crops.The results showed that the amount of energy produced continued to rised in lockstep with agricultural production and would continue to increased gradually. The annual agricultural waste potential, such as rice residue, had been estimated to generated more than 1300 TJ of energy potential, equivalent to 10 GW of electrical energy. In the future, the sustainability of biomass residue utilization considering environmental, social, and economic factors would support national resilience programs.

PENGEMBANGAN KONSEP KEBERLANJUTAN LINGKUNGAN DENGAN PENDEKATAN ASSET BASED COMMUNITY DEVELOPMENT (STUDI KASUS DI UIN SUNAN AMPEL SURABAYA) Erry Ika Rhofita
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 1 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.1.1-8

The environment sustainability concepts is one of commitments at Islamic State University Sunan Ampel Surabaya (UINSA). The purposes of this study were knowing and developing of the environment sustainability concept at UINSA with approach Asset Based Community Development (ABCD), by the university facilities and infrastructure optimizing, the potential and the strength of the university. This study used a Combination Research Methods (Mixed Methods) were a methods that used quantitative and qualitative approach in the research activities. Qualitative approach were used to obtain the data from the parties that have the authority to take decisions (stakeholders). While the quantitative approach used to obtain the data from the environment university users (lecturers, staffs, and students). Data collection methods with interviews, observation, focus group discussions (FGD), literature study, and documentation. The results of this study were; 1) UINSA has potential and a major force in the development of the concept of environmental sustainability in the areas of the three responsibilities of Higher Education, UCE, and human resources, as written in the University's Strategic Plan and UCE Strategic Plan year 2014-2019, 2) concept environmental sustainability is a manifestation of the university's commitment to implement the teachings of Islam Rahmatan Lil Alamin applied in every activity of the three responsibilities of Higher Education, UCE and environment management at university, that it embodied in the form of environmental sustainability policy, 3) stakeholders and users have high expectations regarding sustainability environment concept and can be used to realize the green campus programs.

ANALISIS KUALITAS DASAR TEPUNG BENGKUANG HASIL PENGERINGAN SISTEM PEMANAS GANDA Erry Ika Rhofita
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.788 KB)

Yam (Pachyrrhizus erosus) widely cultivated in many regions in Indonesia, especially in West Java and Central Java. This fruits have many benefits in many sector, such as food industry, drugs indutry, beauty industri and many more sector, so it is so good for consumtion. The high water content of yam between 78 to 94%, which led to a faster damaged after harvest. Therefore we need further processing to extend the shelf life of yam, one of which is flouring. In the process of making flour yam, drying is an important process that need to be considered for determining the quality of the resulting yam flour. This study aims to determine the effect of variations in temperature and the drying time of the basic quality (yield, water content and ash content) yam flour produced. From this research it is known that the higher the drying temperature and longer drying time rendemen and ash generated will be higher, while its water level will decrease. The best treatment resulting from this research is the use of a temperature of 65° C with long drying time 7 hours, resulting in a yield of yam flour is 7.74%, water content of yam flour 4.69%, and the ash content of yam flour is 5.13%.

RANCANG BANGUN ALAT PENGERING TIPE RAK SISTEM DOUBLE BLOWER Rahbini Rahbini; Heryanto Heryanto; Basuki Rachmat; Erry Ika Rhofita
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (639.86 KB)

The drying process is done by most yam farmers in Indonesia by using conventional methods relying on sunlight. However, it does have many flaws that depends only on sunlight and weather changes so as to reduce the quality and interfere with the desired process. To improve the quality of the resulting yam flour is required drier. In this study focuses on design of yam drier rack type with double blower. The use of double blower on this instrument aims to establish a hot air flow patterns that can distribute the temperature evenly across the drying chamber, so that the drying process can take place quickly. Results of testing tools is done, the total energy requirement for drying chestnuts from the initial moisture content of 84% to 4.91% for 4 hours at 20118,823 kJ with total LPG consumption required for 0434 kg of LPG per hour and needs for 0109.

Kajian Pemanfaatan Limbah Jerami Padi di Bagian Hulu Erry Ika Rhofita
Al-Ard: Jurnal Teknik Lingkungan Vol. 1 No. 2 (2016): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Jerami padi di Indonesia belum termanfaatkan secara optimal sebagai bahan baku maupun bahan pengganti dalam proses produksi barang. Umumnya jerami padi yang dihasilkan dari panen hanya dibakar diareal persawahan dengan tujuan mampu meningkatkan sifat fisik dan kimia tanah serta menekan biaya pengangkutan dan transportasi dalam pembuangannya. Pemanfaatan jerami padi dapat mencakup bagian hulu maupun hilir. Dibagian hulu jerami padi banyak dimanfaatkan untuk keperluan di bidang pertanian dan peternakan. Dibidang pertanian jerami padi dimanfaatkan sebagai bahan baku dalam pembuatan pupuk organik dan mulsa tanam. Sedangkan dalam bidang peternakan jerami padi dimanfaatkan sebagai sumber pakan ternak yang kaya nutrisi. Melalui pemanfaatan jerami padi di bagian hulu diharapkan mampu menerapkan prinsip manajemen lingkungan 3R (reduce, reuse, dan recyle) dan berbasis zero waste

Al-Qur’an dan Aplikasi Teknologi Mikrohidro di Indonesia Erry Ika Rhofita
Al-Ard: Jurnal Teknik Lingkungan Vol. 2 No. 1 (2016): September
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Agama Islam mengajarkan kepada ummatnya selalu menjaga kelestarian alam yang diterangkan dalam beberapa ayat dalam Al-Qur’an. Salah satu cara untuk menjaga kelestarian alam melalui aplikasi teknologi mikrohidro sebagai energi alternatif terbarukan (renewable energy) yang ramah lingkungan sesuai dengan ajaran Islam. Konsep dasar dalam aplikasi teknologi mikrohidro adalah debit air dalam bentuk aliran sungai dan ketinggian (head) secara terperinci dituliskan dalam QS. Ar-Ra’d ayat 17 jauh sebelum turbin ditemukan. Di dalam Al-Qur’an juga telah dijelaskan beberapa ayat yang dapat dijadikan pedoman dalam penerapan mikro hidro sesuai dengan konsep persamaan mikro hidro seperti; daya mekanis mikrohidro, ketinggian air, debit air, dan gravitasi. Makalah ini membahas konsep dasar penerapam mikrohidro yang dibuktikan dan berpedoman pada Al-Qur’an. Dengan demikian, dapat disimpulkan bahwa Al-Qur’an akan selalu menjadi pedoman utama ilmu pengetahuan dan teknologi (iptek), serta petunjuk dan motivasi bagi semua umat manusia dalam setiap aspek kehidupan.

Co-Authors Anis Artiyani Auvaria, Shinfi Wazna Basuki Rachmat Chana AW, Liliek Gabriel, Marchello Heryanto Heryanto I Nyoman Sudiasa M. Ibrahim Ashari N Naily Nenny Roostrianawaty Rahbini Rahbini Rivaldo Rijadi, Dara Rizky Russo, Aldentio Emir Sa’diyah, Maia Hana Wadu, Evelyn Darmawulan Djami Wijaya, Ida Bagus Prama Yoseph, Cindy Sandrina

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