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All Journal REKAYASA KOVALEN: Jurnal Riset Kimia JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Teknologi Lingkungan Lahan Basah JAMAIKA: Jurnal Abdi Masyarakat Jurnal Pengabdian Pada Masyarakat

Estin Nofiyanti

Universitas Muhammadiyah Tasikmalaya

Author-ID : 3080108

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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Articles

PROSES KONVERSI MINYAK GORENG BEKAS MENJADI POLIOL SEBAGAI BAHAN BAKU BUSA POLIURETAN Estin Nofiyanti; Gatut Ari Wardani
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 2 (2018): Edisi Agustus
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Minyak goreng bekas yang bersifat karsinogenik dan selama ini menjadi limbah yang mencemari lingkungan berpotensi sebagai bahan baku pembuatan busa poliuretan yang bernilai ekonomis. Penelitian ini bertujuan untuk mengkonversi minyak goreng bekas menjadi poliol dan selanjutnya dijadikan sebagai bahan baku busa poliuretan. Minyak goreng bekas dikonversi menjadi poliol melalui proses hidroksilasi menggunakan asam formiat dan asam peroksida. Proses pembuatan poliuretan ini direaksikan dengan Toluen diisosianat (TDI) dan PEG-400. Poliuretan dikarakterisasi menggunakan FTIR, perhitungan massa jenis dan nilai derajat penggembungan. Poliuretan yang terbentuk memeiliki massa jenis sebesar 0,38 g/mL dan nilai derajat penggembungan sebesar 13,21%.

Analisis Kandungan Cemaran Logam Berat Kromium pada Anak Sungai Citanduy Kota Tasikmalaya Estin Nofiyanti; Ayu Erviena; Gatut Ari Wardani; Nurcholis Salman
JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Vol 4, No 2 (2020)
Publisher : State University of Malang or Universitas Negeri Malang (UM)

Citanduy adalah salah satu sungai yang terkena dampak dari aktifitas manusia, dimana anak sungai Citanduy di Cigeureung Kecamatan Cipedes Kota Tasikmalaya telah lama tercemar oleh aktifitas domestik dan aktifitas UKM industri batik. Tujuan penelitian ini untuk mengetahui beban cemaran kromium di anak sungai Citanduy. Pengambilan sampel dilakukan secara purposive sampling dengan menggunakan metode storet. Pengambilan sampel dilakukan dengan jarak masing-masing titik sejauh 1 km sebanyak 3 titik sampling yaitu Desa Parakanyasag koordinat 7°17’46.4”S 108°13’04.3”E dengan wilayah yang didominasi persawahan tanpa industri. Titik ke dua di Desa Cicariuk pada koordinat 7°18’08.9”S 108°13’07.4”E, titik ini merupakan titik sentral industri batik di Cigeureung. Titik ke tiga berada di Gg. Masjid Buninagara dengan koordinat 7°18’42.7”S 108°12’58.9”E. Setelah dilakukan pengujian laboratorium hasil menunjukan nilai Cr pada titik satu sebesar 0,007 mg/L, pada titik kedua nilai Cr 0,010 mg/L, dan titik ketiga Cr 0,012 mg/L. Hasil ini menujukan nilai Cr tidak melebihi ambang baku mutu air sungai kelas II (nilai Cr 0,05) sesuai Peraturan Pemerintah No 82 Tahun 2001.

Sosialisasi Pengelolaan Limbah Dapur Serta Program 3R (Reuse, Reduce, Recycle) Bagi Pemilik Rumah Makan dan Jasa Boga di Wilayah Kota Tasikmalaya Melly Mellyanawaty; Estin Nofiyanti; A Ibrahim; N Salman; N Nurjanah; N Mariam
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 1 No. 2 (2018): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Society services activity in kitchen waste management system has been implemented to the owner of restaurant and catering work in Tasikmalaya City area. This activity has colaborated with Indonesian Catering Associations (APJI). The rapid growth of restaurant and catering activities has created serious problems of energy requirement, water, and solid waste disposal. Less information and limited area become the problems in handling of kitchen waste. A simple technique is needed to overcome the environmental problem which is caused by kitchen waste. The components of kitchen waste include vegetables, peelings, fruit skins, spoilt fruit, cooked and uncooked meat, bones, fats, egg-shells, bread and pastries, cooked food waste, etc. Due to a high organic content, bioconversion technologies such as anaerobic digestion are more suitable to handle the waste convert to biogas. It would be reducing the LPG usage. For the kitchen wastewater, grease trap as pre-treatment followed by a physical and biological process is one of a simple process which can produce the effluent in accordance with government standard. The activities were continued by the socialization of 3R program (reuse, reduce, recycle) by doing demo utilization of kitchen solid waste such as packing material, mineral water bottle is made a handicraft. Knowledge transfer run well and the enthusiasm of the participants in following the activity were very good.

PELATIHAN DAUR ULANG SAMPAH PLASTIK MENJADI SOUVENIR RAMAH LINGKUNGAN DI KABUPATEN TASIKMALAYA Estin Nofiyanti; Nurcholis Salman; Novi Nurjanah; Melly Mellyanawaty; Tazkia Nurfadhillah
JAMAIKA: JURNAL ABDI MASYARAKAT Vol 1, No 2 (2020): JUNI
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.059 KB)

Sampah plastik menjadi salah satu limbah padat yang di hasilkan oleh masyarakat. Sampah plastik sangat berbahaya bagi lingkungan karena plastik tidak mudah membusuk dan sulit diuraikan. Perlu adanya kesadaran dan peran aktif dari masyarakat untuk menangani permasalahan sampah plastic. Salah satu cara penanganannya yaitu dengan program 3R ( Reuse, Recycle, Reduce). Contohnya adalah bekas air kemasan yang sudah tidak memiliki nilai diolah dan di daur ulang menjadi sesuatu yang lebih bermanfaat dan memiliki nilai ekonomis. Plastik tidak hanya menjadi sumber masalah tetapi di sisi lain sampah plastik justru memberikan peluang bisnis. Pelatihan daur ulang sampah plastik ini bertujuan agar peserta dapat memiliki keterampilan dan jiwa berwirausaha hasil daur ulang sampah plastik. Metode yang digunakan meliputi penyuluhan dan pelatihan serta praktek langsung. Hasil kegiatan menunjukkan bahwa program PkM dapat dilaksanakan dan direspon dengan baik oleh ibu-ibu PKK Desa Bugel, Kecamatan Ciawi, Kabupatan Tasikmalaya. Peserta pelatihan terlihat sangat antusias dalam membuat aneka kerajinan dari sampah plastik. Keterampilan membuat aneka souvenir ramah lingkungan dari sampah plastik ini sangat bermanfaat bagi ibu-ibu PKK Desa Bugel. Souvenir yang dihasilkan selain bisa dijual untuk menambah pendapatan keluarga, juga dapat mengurangi jumlah sampah plastik yang sulit terurai.

Arang Aktif Ampas Tebu Termodifikasi Kitosan sebagai Adsorben Tetrasiklin: Pemanfaatan Metode Kolom: Chitosan Modified Sugarcane Bagasse Activated Charcoal as Tetracycline Adsorbent: Utilization of the Column Method Gatut Ari Wardani; Adinda Nur Octavia; Mochamad Fathurohman; Taufik Hidayat; Estin Nofiyanti
KOVALEN: Jurnal Riset Kimia Vol. 8 No. 3 (2022): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2022.v8.i3.16090

Currently, antibiotics are considered environmental pollutants because of their undesirable effects on human health and the environment, including the waste of antibiotics tetracycline hydrochloride. While on the other hand, bagasse is an agricultural waste that has no economic value. This study aims to study the characteristics of activated charcoal from bagasse and the use of bagasse as chitosan-modified activated charcoal using the column method to determine the variation of adsorbent height, flow rate, and acidity of the solution in the ability of the bagasse adsorbent to adsorb tetracycline hydrochloride. Bagasse goes through a carbonation process using a furnace at a temperature of 350°C until charcoal is formed. The next process is activation using 2 M phosphoric acids and compared based on SNI 06-3730-1995 regarding technically activated charcoal. Determination of functional groups using Fourier Transform Infra-Red, adsorbent morphology using Scanning Electron Microscope, and crystallinity using X-Ray Diffraction. The concentration of tetracycline hydrochloride before and after adsorption was measured using an Ultra Violet-Visible spectrophotometer. The best absorption results in the adsorption process were found at the adsorbent height of 14 cm (99%), the flow rate of 0.5mL/minute (92%), and pH 4 (93%).

Edukasi Mengenai Peranan Reaksi Kimia dalam Tubuh Bagi Anak Usia Dini di Kober Al-Mujahidin Estin Nofiyanti; Noer Laelly BTAG; Nandhini Huda A; Gatut Ari Wardani
Jurnal Pengabdian Pada Masyarakat Vol 7 No 3 (2022): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

THE ROLE OF CHEMICAL REACTION IN THE BODY EDUCATION FOR EARLY CHILDHOOD IN KOBER AL-MUJAHIDIN. The essence of Early Childhood Education (PAUD) is education that organized with the aim of facilitating the growth and development of children as a whole, emphasizing on the development of all aspects of the child's personality. The PAUD program must focus on all aspects of child development according to the interests, needs, and abilities of the child. In addition, development programs should instill and foster behavior and attitude development through good habits. Science learning can be used as a medium to stimulate developmental aspects and maximize children's potential. This Community Service Program was held at Kober Al Mujahidin, Pangandaran Regency. This activity aims to introduce body organs and provide education about the role of chemical reactions in the body for early childhood. This community Service Program was carried out through three stages, namely the preparation stage (survey & observation), implementation and evaluation stages. The results showed that the implementation program can increase students' understanding in recognizing the chemical processes that occur in their bodies. School partners also gain experience contextual learning materials for early childhood students in an interactive and fun way.

Uji Efektivitas Ulat Hongkong (Tenebrio molitor L.) dalam Degradasi Sampah Plastik Oriented Polypropylene Estin Nofiyanti; Rubiansyah Dio Lazuardi; Melly Mellyanawaty; Gatut Ari Wardani
Rekayasa Vol 16, No 2: Agustus 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v16i2.19321

Oriented Polypropylene (OPP) plastic is a thermoplastic polymer that is widely used for the benefit of plastic product packaging in the pharmaceutical, cigarette, shampoo, detergent, textile, food, and beverage industries. OPP plastic has a high coefficient of thermal expansion, is susceptible to UV degradation, has poor resistance to solvents, is difficult to paint due to poor bonding properties, is highly flammable, susceptible to oxidation, and difficult to decompose naturally when it becomes waste. This study aimed to determine the ability of the Hong Kong caterpillar to degrade OPP plastic waste. This research method used a completely randomized design consisting of 4 treatments and 3 replications. The various treatments given were OPP 0.23 g for 120 caterpillars (V0); OPP 0.17 g: Bran 0.23 g for 120 caterpillars (V1); OPP 0.11 g: Bran 0.23 g for 120 caterpillars (V2); and OPP 0.06 g: Bran 0.23 g for 120 caterpillars (V3). The results showed that the feeding of OPP and rice bran affected the degradation rate of OPP plastic. The highest percent degradation value was obtained in the V3 treatment at 50% and the most optimal biodegradation rate occurred in the V1 treatment of 0.02 mg/day.

Penentuan Mutu Air Waduk Jatiluhur Jawa Barat dengan Metode IP, Storet, CCME WQI sebagai Dampak Keramba Jaring Apung Melly Mellyanawaty; Siti Nurhalimah; Estin Nofiyanti
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 2 (2024): April 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i2.76658

The Jatiluhur Reservoir is an important structure in West Java Province that damming the Citarum River. This reservoir is a reservoir for domestic, industrial, and agricultural wastewater pollution originating from the catchment area, causing water quality to decline. This study was conducted to determine the water quality of the Jatiluhur reservoir in the 2020-2021 period using the IP, Storet, and CCMW WQI methods. Samples were taken from 5 stations, namely: Karamba, Kerenceng, Taroko, Parung Kalong, and Cilalawi, at several depths. Based on the results of the study, it is known that pH, DO, BOD, and free ammonia at the monitoring location do not meet the quality standards. The analysis found the lowest DO was 2 mg/L, the highest pH value was 10, BOD was 13 mg/L, and free ammonia was 1 mg/L. These four parameters contributed to the decline in water quality. Determination of water quality status showed lightly polluted for the IP method and moderately polluted for the Storet and CCMW WQI methods, thus affecting the utilization of this reservoir, especially as drinking water. Of the three methods, IP is the appropriate method used in this study because it has the lowest standard error. The decline in water quality in Jatiluhur Reservoir is caused by organic substances originating from floating net cage waste. Keywords: Jatiluhur; floating net cage; water quality method Abstrak Waduk Jatiluhur merupakan bangunan penting di Provinsi Jawa Barat yang membendung Sungai Citarum. Waduk ini menjadi tempat penampungan pencemaran air limbah domestik, industri, dan pertanian yang berasal dari daerah tangkapan air sehingga menyebabkan kualitas air menurun. Penelitian ini dilakukan untuk mengetahui kualitas air Waduk Jatiluhur pada periode 2020-2021 dengan metode IP, Storet, dan CCMW WQI. Sampel diambil dari 5 stasiun yaitu: Karamba, Kerenceng, Taroko, Parung Kalong, dan Cilalawi, pada beberapa kedalaman. Berdasarkan hasil penelitian, diketahui bahwa pH, DO, BOD, dan amonia bebas di lokasi pemantauan tidak memenuhi baku mutu. Dari hasil analisis ditemukan nilai DO terendah 2 mg/L, pH tertinggi 10, BOD 13 mg/L, dan amonia bebas 1 mg/L. Keempat parameter ini berkontribusi terhadap penurunan kualitas air. Penentuan status mutu air menunjukkan tercemar ringan untuk metode IP dan tercemar sedang untuk metode Storet dan CCMW WQI, sehingga berpengaruh terhadap pemanfaatan waduk terutama sebagai air baku untuk air minum. Dari ketiga metode tersebut, IP merupakan metode yang sesuai digunakan pada penelitian ini karena memiliki standar eror terendah. Penurunan kualitas air di Waduk Jatiluhur disebabkan oleh zat-zat organik yang berasal dari limbah keramba jaring apung. Kata Kunci: Jatiluhur; keramba jarring apung; metode mutu air

Co-Authors A Ibrahim Adinda Nur Octavia Ayu Erviena Gatut Ari Wardani Gatut Ari Wardani Gatut Ari Wardani Melly Mellyanawaty Mochamad Fathurohman N Mariam N Nurjanah N Salman Nandhini Huda A Noer Laelly BTAG Novi Nurjanah Rubiansyah Dio Lazuardi Salman, Nurcholis Siti Nurhalimah Taufik Hidayat Tazkia Nurfadhillah

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