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Open Science and Technology
Published by Research and Social Study Institute
ISSN : 2776169X     EISSN : 27761681     DOI : http://dx.doi.org/10.33292/ost
Core Subject : Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Environmental Science Mechanical Engineering
Open Science and Technology diterbitkan oleh Research and Social Study Institute sebagai sarana untuk mempublikasikan hasil penelitian, artikel review dari peneliti-peneliti dibidang Ilmu alam, Ilmu pertanian, ilmu Kehutanan, Ilmu Keteknikan, Teknologi, dan Aplikasinya. Jurnal ini terbit dua kali setahun (April dan Oktober). Jurnal ini diterbitkan secara online dan cetak. Open Science and Teknologi memilki filosofi bahwa jurnal ini terbuka untuk siapa saja baik mahasiswa, dosen, peneneliti, konsultan, praktisi di bidang ilmu sains dan teknologi secara umum untuk menerbitkan hasil studi atau penenlitiannya di jurnal ini. Jurnal ini diharapkan pula dapat menjadi jurnal yang fast respone, fast review dan fast publication. Dan kedepan dapat terakreditasi secara nasional dan terindek secara global. Open Science and Technology telah ber P-ISSN 2776-169X dan E-ISSN 2776-1681
Arjuna Subject : Umum - Umum
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Analisis Struktur Biaya, Keuntungan dan Nilai Tambah Agroindustri Tempe di Kelurahan Gunung Sulah Sebelum dan Sesudah Covid-19: Analysis Structure of Cost, Profits and Additional Value of Tempe Agroindustry in Gunung Sulah Village Before and After Covid-19 Thania indri Savitri; Dwi Haryono; Yuliana Saleh
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.21

Abstract

Agroindustri menjadi salah satu subsektor yang penting untuk menunjang pembangunan nasional. Fungsi agroindustri sendiri adalah untuk menciptakan nilai tambah pada produk yang dihasilkan. Namun, pada masa pandemi Covid-19, pengrajin tempe dihadapkan pada permasalahan bahan baku yaitu harga kedelai impor mengalami kenaikan. Kenaikan harga menyebabkan berkurangnya keuntungan yang didapat para pengrajin tempe, sehingga perlu mengurangi jumlah produksi dan mengurangi ukuran tempe, agar usaha tersebut dapat terus berjalan. Penelitian bertujuan untuk.menganalisis struktur biaya, keuntungan dan nilai tambah sebelum dan sesudah pandemi Covid-19. Penelitian dilakukan sejak bulan Desember 2020 – Januari 2021 di Kelurahan Gunung Sulah. Penelitian menggunakan sampel 32 agroindustri yang dibagi berdasarkan strata dari populasi. Metode pengambilan sampel menggunakan metode stratified random sampling. Metode analisis yang digunakan terdiri dari struktur biaya, keuntungan dan nilai tambah. Hasil menunjukkan struktur biaya dengan persentase paling besar pada biaya bahan baku kedelai impor dan persentase paling rendah pada ragi. Nilai tambah yang didapatkan para pengrajin tempe bernilai positif dan para pengrajin tempe masih mendapatkan keuntungan, meskipun harga bahan baku kedelai impor naik. Agroindustry is one of the important sub-sectors to support national development. The function of the agroindustry itself is to create added value to the products produced. However, during the Covid-19 pandemic, tempe producers were faced with the problem of raw materials, namely the price of imported soybeans had increased. The price increase that occurs causes a decrease in the profits obtained by the tempe producer, so they reduce the amount of production and reduce the size of the tempe, so that their business can continue to run. This research aims to analyze the structure of costs, benefits and added value before and after the Covid-19 pandemic. This research was conducted from December 2020 – January 2021 in Gunung Sulah Village. This study used a sample of 32 agroindustries which were divided based on the strata of the population. Method taking sampling using stratified random sampling method. The result of this research is that the cost structure with the largest percentage is in the cost of imported soybean raw materials and the lowest percentage is yeast. The added value obtained by the tempe produceris positive and the tempe producer still profit, even though the price of imported soybean raw materials increases.
Perubahan Profil Tekstur Ketupat selama Penyimpanan: Changes in Texture Characteristics of Ketupat during Storage Isnaini Rahmadi; Sugiyono; Nugraha Edhi Suyatma
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.22

Abstract

Beras merupakan makanan pokok bagi lebih dari setengah penduduk dunia. Ketupat merupakan produk olahan beras yang menjadi bagian dari budaya Indonesia. Ketupat memiliki umur simpan yang singkat. Suhu penyimpanan yang berbeda diduga memengaruhi profil tekstur ketupat. Penelitian bertujuan untuk memperoleh data pengaruh amilosa beras dan persentase pengisian ketupat pada perubahan profil tekstur ketupat selama penyimpanan pada suhu yang berbeda. Karakterisasi tekstur ketupat dilaksanakan pada dua suhu, yaitu suhu ruang dan dingin. Ketupat dibuat dengan beras varietas IR 64 dan Pandan Wangi. Selama penyimpanan suhu ruang, beras beramilosa tinggi serta persentase pengisian ketupat yang lebih rendah diperoleh ketupat dengan elastisitas yang rendah. Elastisitas meningkat selama penyimpanan pada suhu ruang, tetapi selama penyimpanan suhu dingin elastisitas tidak berubah. Amilosa beras serta persentase pengisian yang lebih tinggi diperoleh nilai daya kunyah ketupat tinggi selama penyimpanan disuhu dingin, tetapi saat kondisi suhu ruang kadar amilosa tidak berpengaruh pada daya kunyah. Selama penyimpanan, baik disuhu ruang ataupun suhu dingin, nilai daya kunyah ketupat meningkat. Kelengketan ketupat tidak dipengaruhi oleh kandungan amilosa dan persentase pengisian ketupat. Rice is a staple food for more than half of the world's population. Ketupat is an Indonesian indigenous food made from rice. However, ketupat has short a shelf life. The differences in storage temperatures might affect the texture characteristics. The objective of this research was to observe the effect of amylose content and the percentage of ketupat filling on the change of texture characteristics of ketupat during storage at different temperatures. Characterizations of ketupat during storage were conducted in two temperature conditions, i.e. room temperature and cold temperature. Ketupat was produced by using IR 64 and Pandan Wangi rice varieties. The higher amylose content and the lower percentage of ketupat filling resulted in the lower of ketupat springiness during storage at room temperature. The springiness of ketupat also increased during storage at room temperature, but it did not change significantly during storage at cold temperature. The higher amylose content and the percentage of ketupat filling resulted in the higher of ketupat chewiness during storage at cold temperature. However, at room temperature, the chewiness was not affected by the amylose content. The chewiness of ketupat increased during storage at room temperature and cold temperature. The amylose content and the percentages of ketupat filling did not affect adhesiveness, of the ketupat during storage.  
Pemanfaatan Limbah Batang Singkong Menjadi Obat Nyamuk Bakar Dengan Campuran Sereh Wangi (Cymbopogon nardus L.): Utilization Of Cassava Stem Waste Into Mosquito Coils With Citronella (Cymbopogon nardus L.) Elhamida Rezkia Amien; Sandi Asmara; Resa Anggraini; Ridwan
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.24

Abstract

Provinsi Lampung merupakan salah satu produsen singkong terbesar di Indonesia. Salah satu limbah melimpah yang perlu diolah adalah batang singkong. Sebagai upaya pemanfaatan limbah batang singkong menjadi produk alternative lain, maka perlu dilakukan kajian tentang pembuatan limbah batang singkong menjadi obat nyamuk bakar melalui pencampuran dengan sereh wangi. Pelaksanaan penelitian terdiri dari beberapa tahap yaitu persiapan alat dan bahan, pengecilan ukuran dan penyaringan, pengeringan bahan, pencampuran bahan dan perekat, pencetakan, pengeringan obat nyamuk, dan analisis data. Hasil analisis data disajikan dalam bentuk tabel dan grafik. Analisis data meliputi Uji kadar air, kerapatan, lama bakar, berat per satuan, dan uji keutuhan obat nyamuk bakar.  Berdasarkan pengujian, dihasilkan obat nyamuk bakar dengan diameter lingkaran 12 cm, lebar 0,7 cm, ketebalan 0,4 mm, panjang  80 cm, dan berwarna kuning kecoklatan. Obat nyamuk yang dihasilkan dari pencampuran limbah batang singkong dan sereh wangi memenuhi 2 kriteria standard SII yaitu keutuhan dan kadar air. 2 kriteria belum memenuhi standard SII yaitu berat per satuan dan lama bakar. Lampung Province is one of the largest cassava producers in Indonesia. One of the abundant wastes that need to be processed is cassava stems. To utilize cassava stem waste into other alternative products, it is necessary to conduct a study on the manufacture of cassava stem waste into mosquito coils through mixing with citronella. The implementation of the research consisted of several stages, namely preparation of tools and materials, size reduction and screening, drying of materials, mixing of materials and adhesive, printing, drying of insect repellent, and data analysis. The results of data analysis were presented in the form of tables and graphs. Data analysis includes testing of moisture content, density, burning time, weight per unit, and wholeness test of mosquito coils. Based on the test, mosquito coils were produced with a circle diameter of 12 cm, a width of 0.7 cm, a thickness of 0.4 mm, a length of 80 cm, and a brownish yellow color. Mosquito repellent produced from mixing cassava stem waste and Citrolella that fulfils two SII standard criteria, namely wholenes test and water content. two criteria does not meet the SII standard, namely weight per unit and burn time.
Analisis Drag Force dan Aliran Fluida pada Desain Mobil Listrik Green Campus UNILA Berdasarkan Kecepatan: Drag Force and Fluid Flow Analysis at UNILA Green Campus Electric Car Design Based on Velocity Akhmad Riszal; Martinus
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.25

Abstract

Penggunaan energi fosil sangat berpengaruh terhadap keberlanjutan lingkungan. Sehingga kita harus mempunyai komitmen untuk mengurangi konsumsi bahan bakar fosil untuk menjaga lingkungan yang berkelanjutan. Hal ini senada dengan komitmen Universitas Lampung (UNILA) dalam menjadikan kampus Unila sebagai Green Campus. Pada tahun 2019, Unila mendapat peringkat ke 18 Nasional Ranking UI Green Matric. Salah satu teknologi yang dapat dikembangkan dalam menekan emisi lingkungan kampus adalah penggunaan mobil listrik. Tujuan dari penelitian ini adalah menganalisis drag force dan fenomena aliran fluida yang melewati body kendaraan dalam kajian aerodinamika terutama fenomena sparasi aliran dan terjadinya wake. Kecepatan yang akan disimulasikan pada kecepatan 10, 20, 30, 40, 50, 60 km/h. Penelitian ini menggunakan jenis penelitian Research and Development (R&D) dengan Komputasi numerik di Lab Teknik Mesin UNILA. Penelitian ini menggunakan Software Ansys Workbench 2020 R1 dengan CFD (Computational Fluid Dynamics) Solver. kemudian metode yang digunakan dalam simulasi numerik ini menggunakan metode turbulen k-epsilon realizable standard wall function. Penelitian ini menunjukkan terjadinya kenaikan drag pada setiap variasi kecepatan, hal ini dikarenakan banyaknya sparasi aliran dan adanya wake yang mempengaruhi drag force. The use of fossil fuel energy is very influential on environmental sustainability. And than we must have a commitment to reduce the consumption of fossil fuels to maintain a sustainable environment. This is in line with the commitment of the University of Lampung (UNILA) in making the Unila Green Campus. In 2019, Unila was ranked 18th in the UI Green Matric National Ranking. One of the technologies that can be developed to reduce emissions in campus area is the use of electric car. The purpose of this study is to analyze the drag force and the phenomenon of fluid flow passing through the vehicle body in aerodynamic studies, especially the phenomenon of flow separation and the occurrence of wakes. Velocity to be simulated at velocity of 10, 20, 30, 40, 50, 60 km/h. This research uses Research and Development (R&D) research with Numerical Computing at the UNILA Mechanical Engineering Lab. This research uses Ansys Workbench 2020 R1 software with CFD (Computational Fluid Dynamics) Solver. The method used in this numerical simulation uses the turbulent k-epsilon realizable standard wall function method. This study shows an increase in drag at each velocity variation, this is due to the large number of flow separations and the presence of wakes that affect drag force.  
Manajemen Pemberian Pakan Ternak Sapi Potong Di Kecamatan Pasir Sakti, Kabupaten Lampung Timur: The Feed Management of Beef Cattle in Pasir Sakti Sub District, Lampung Timur District Rohmatul Anwar; Tri Adi Wibowo; Desy Sasri Untari
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.27

Abstract

Penelitian bertujuan untuk mengetahui manajemen pakan ternak sapi potong di Kecamatan Pasir Sakti Kabupaten Lampung Timur. Metode penelitian yang digunakan adalah metode survei yang terdiri dari data primer dan data sekunder. Data primer diperoleh langsung di lapangan melalui wawancara dengan setiap peternak sapi potong, sedangkan data sekunder didapat dari instansi-instansi yang terkait. Data yang diperoleh kemudian diolah dan disajikan dalam bentuk deskripsi dan tabel. Hasil penelitian yang telah dilaksanakan yaitu jenis ternak sapi yang dipelihara adalah sapi Bali, Peranakan Ongole, dan Simmental. Manajemen pemberian pakan yang diterapkan peternak masih belum tepat untuk memenuhi kebutuhan pakan, hewan ternak hanya digembalakan sehingga jumlah pakan yang diberikan belum memenuhi kebutuhan, ternak tidak diberi pakan berupa konsentrat, serta frekuensi dan cara pemberian pakan yang belum tepat. Hasil penelitian menunjukkan masyarakat peternak sapi potong belum menerapkan manajemen pemberian pakan yang baik terhadap ternak sapi potong. This research aims to find out the feed management of beef cattle in Pasir Sakti Sub District of East Lampung Regency. The research method used in this study is a survey method consisting of primary data and secondary data. Primary data is obtained directly in the field through interviews with each beef cattle farmer, while secondary data is obtained from related agencies. The data obtained is then processed and presented in the form of descriptions and tables. The results of research that has been carried out are the types of livestock that are maintained are Bali, Ongole crossbreeds, and Simmental. The management of feed applied by farmers is still not right to meet the needs of feed,  livestock only grazed so that the amount of feed provided has not met the needs, livestock is not fed in the form of concentrate, as well as the frequency and way of feeding is not yet appropriate. The results show that the beef cattle farming community has not implemented good feeding management for beef cattle.
Analisis Struktur Pendapatan dan Kesejahteraan Anggota Koperasi Produksi Ternak Maju Sejahtera Di Kecamatan Tanjungsari Kabupaten Lampung Selatan: Analysis of Income Structure and Welfare of Members of Maju Sejahtera Livestock Production Cooperatives in Tanjungsari Subdistrict, Lampung Selatan District Eka Wahyu Rahmawati; Dyah Aring Hepiana Lestari; Maya Riantini
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.28

Abstract

Koperasi Produksi Ternak Maju Sejahtera merupakan koperasi peternakan yang beranggotakan peternak sapi. Penelitian ini bertujuan menganalisis manfaat ekonomi koperasi, struktur pendapatan, kesejahteraan serta faktor-faktor yang mempengaruhi kesejahteraan anggota koperasi. Penelitian dilakukan di Koperasi Produksi Ternak Maju Sejahtera Kecamatan Tanjungsari Kabupaten Lampung Selatan. Sampel penelitian 41 rumah tangga anggota koperasi yang dipilih acak sederhana. Analisis data deskripsi kuantitatif. Hasil penelitian:(1) total manfaat ekonomi koperasi yang diterima rendah, (2) kontribusi pendapatan terbesar adalah pendapatan usahatani sebesar 56,22% sedangkan manfaat ekonomi koperasi hanya 1,01%, (3) berdasarkan garis kemiskinan Badan Pusat Statistik 2018, anggota koperasi dalam kategori sejahtera. Pendapatan rumah tangga anggota koperasi berpengaruh positif terhadap kesejahteraan. Jumlah tanggungan keluarga berpengaruh negatif terhadap kesejahteraan anggota koperasi. The Maju Sejahtera Livestock Production Cooperative is a livestock cooperative consisting of cattle farmers. This study aims to analyze the economic benefits of cooperatives, income structure, welfare and the factors that affect the welfare of cooperative members. The research was conducted at the Maju Sejahtera Livestock Production Cooperative, Tanjungsari Subdistrict, Lampung Selatan District. The research sample was 41cooperative member household which at simple random. Analysis of data quantitative descriptions. The results (1) the total economic benefits of cooperatives received low, (2) the largest contribution to income is farming income of 56.22% while the economic benefits of cooperatives was only 1.01%, (3) based on the poverty line. Badan Pusat Statistik 2018, cooperative members are already in the prosperous category. Cooperative members' household income has a positive effect on welfare. The number of family dependents has a negative effect on the welfare of cooperative members.  
Analisis Timbulan Dan Komposisi Sampah Di Kawasan Pantai Goa Cemara, Kabupaten Bantul, Daerah Istimewa Yogyakarta: Analysis of Waste Generation and Composition at Goa Cemara Beach, Bantul Regency, Special Region of Yogyakarta Rifka Aisha; Yebi Yuriandala; Hijrah Purnama
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.29

Abstract

Pantai Goa Cemara merupakan daerah wisata dimana tingginya aktivitas penduduk maupun kegiatan wisatawan dapat berdampak pada peningkatan jumlah timbulan sampah. Tujuan dari penelitian ini adalah untuk mengetahui timbulan dan komposisi sampah dari aktivitas pariwisata maupun penduduk sekitar pantai Goa Cemara. Penelitian dilakukan berdasarkan SNI 19-3964-1994 yang telah dimodifikasi dengan waktu sampling dilakukan selama 3 minggu dengan pengambilan sampling 3-4 hari berurutan disetiap minggunya (jumat, sabtu, minggu dan senin). Jumlah timbulan sampah Pantai Goa Cemara per hari sebesar 7,03 m³. Sehingga didapatkan hasil timbulan sampah orang perhari sebesar 2,44 L/orang/hari atau 0,49 kg/orang/hari. Jenis sampah yang dihasilkan berupa tempurung kelapa (36%), sampah kayu (18%), sisa makanan (20%), plastik (8%), Styrofoam (13%), kertas (4%), dan lain-lain (1%). Terdapat beberapa cara yang dapat dilakukan guna menangani permasalahan dari timbulan serta komposisi sampah di Pantai Goa Cemara yaitu dengan cara mengoptimalkan pengelolaan sampah dan kepengurusan pantai Goa Cemara, serta menerapkan konsep 3R (Reduce, Reuse, Recycle). Goa Cemara Beach is a tourist area where the high activities of residents and tourist activities can increase the amount of waste generation. The purpose of this study was to determine the generation and composition of waste from tourism activities and residents around Goa Cemara beach. The study was conducted based on SNI 19-3964-1994 Standard which has been modified with a sampling time of 3 weeks with a sampling of 3-4 consecutive days each week (Friday, Saturday, Sunday, and Monday). The amount of waste generated by Goa Cemara Beach per day is 7.03 m³. So that the results of waste generation per day are 2.44 L/person/day or 0.49 kg/person/day. The types of waste generated are coconut shells (36%), wood waste (18%), food waste (20%), plastic (8%), Styrofoam (13%), paper (4%), and others (1 %). There are several ways that can be done to deal with problems from waste generation and composition at Goa Cemara Beach, namely by optimizing waste management and management of the Goa Cemara beach, and applying the 3R concept (Reduce, Reuse, Recycle).
Tanaman Mahoni (Swietenia Macrophylla) sebagai Bioindikator Pencemaran Udara Khususnya Logam Pb, Cu, Zn di Universitas Islam Indonesia: Mahogany (Swietenia macrophylla) as a Bioindicator of Air Pollution, Especially Pb, Cu, Zn Metals at Universitas Islam Indonesia Divia Septirizqia Salsabil; Suphia Rahmawati; Lutfia Isna Ardhayanti
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.33

Abstract

Aktivitas kendaraan bermotor seperti penggunaan bahan bakar dan rem menjadi salah satu penyumbang pencemar udara seperti logam berat. Mahoni (Swietenia macrophylla) selain digunakan sebagai tanaman peneduh juga dapat berfungsi sebagai filter udara dengan menyerap polutan disekitarnya. Studi ini bertujuan untuk mengetahui apakah Mahoni dapat dijadikan sebagai bioindikator pencemaran udara khususnya logam Pb, Cu, dan Zn. Sampel daun Mahoni, udara, dan tanah diambil di lingkungan kampus Universitas Islam Indonesia Jl. Kaliurang Km 14.5. kemudian sampel didestruksi menggunakan HNO3 dan dianalisis menggunakan Spektrofotometer Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa konsentrasi Cu dan Pb pada sampel daun Mahoni berkorelasi dengan konsentrasi Pb pada sampel udara dengan nilai korelasi 0,76. Sedangkan untuk logam Cu dan Zn menunjukkan korelasi dengan sampel tanah sebesar 0,93 dan 0,83. Vehicle activities such as fuel and brakes contribute to air pollutants such as heavy metals. Mahogany (Swietenia macrophylla), apart from being used as a shade plant, can also function as an air filter by absorbing surrounding pollutants. This study aims to determine whether Mahogany can be used as a bioindicator of air pollution, especially Pb, Cu, and Zn metals. Mahogany leaves, air, and soil samples were taken at the Universitas Islam Indonesia, Jl. Kaliurang Km 14.5 Sleman Yogyakarta Indonesia. then the sample was destructed using HNO3 and analyzed using Atomic Absorption Spectrophotometer (AAS). Results showed that the concentrations Pb in the mahogany leaf samples were correlated with the concentrations Pb in the air samples with correlation values of 0.76. Meanwhile, the Cu and Zn concentration of Mahogany leaves correlated with the Cu and Zn concentration of the soil sample of 0.93 and 0.83.
Partisipasi Masyarakat dalam Kegiatan Posyandu Melati IV Kecamatan Medan Area: Community Participation in Melati IV Posyandu Activities, Medan Area Data Rizqueen Maipiana; Firsty Alifa Putri; Fitri Pralistami; Putri Nabillah; Putri Sonia; Rabiatul Adhwiyah Dalimunthe; Ummu Walidah Lubis
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.35

Abstract

Posyandu ialah kegiatan pelayanan dengan tujuan mendapatkan pelayanan kesehatan dasar, serta turunnya angka kematiaan ibu dan anak yang dibentuk untuk dan oleh masyarakat dari instansi terkait. Partisipasi masyarakat dibutuhkan dalam melaksanakan aktivitas posyandu. Penelitian ini bertujuan untuk mendefinisikan keikutsertaan kader posyandu dalam mendorong kontribusi masyarakat dan strategi kader posyandu dalam mendorong kontribusi masyarakat. Jenis penelitian yang digunakan adalah penelitian deskriptif dengan desain penelitian cross-sectional. Penelitian ini dilaksanakan pada bulan Oktober tahun 2021 di Posyandu Melati IV Kecamatan Medan Area, Kota Medan. Hasil penelitian didapatkan bahwa bentuk keikutsertaan yang didapatkan oleh ibu-ibu dibagi menjadi dua, yakni partisipasi dalam bentuk tenaga dan perwujudan program. Aspek utama yang membawa para ibu untuk berkontribusi dalam pelayanan kesehatan balita adalah lebih kepada aspek internal. Hal ini tampak dari wawasan dari ibu begitu pentingnya menjaga kesehatan. Kemudian aspek eksternal, seperti dukungan keluarga, yaitu suami setuju jika para ibu ikut berkontribusi. Aspek internal dan eksternal tersebut membuktikan sudah terlaksana sasaran dalam bidang kesehatan. Posyandu is a service activity with the aim of obtaining basic health services, as well as reducing maternal and child mortality rates which are established for and by the community from the relevant agencies. Community participation is needed in carrying out posyandu activities. This study aims to define the participation of posyandu cadres in encouraging community contribution and the strategy of posyandu cadres in encouraging community contributions. The type of research used is descriptive research with a cross-sectional research design. This research was conducted in October 2021 at the Posyandu Melati IV, Medan Area District, Medan City. The results showed that the form of participation obtained by the mothers was divided into two, namely participation in the form of energy and program realization. The main aspect that brings mothers to contribute to health services for children under five is more to the internal aspect. This can be seen from the mother's insight into how important it is to maintain health. Then external aspects, such as family support, where the husband agrees if the mothers contribute. These internal and external aspects prove that the targets in the health sector have been achieved.
Penurunan Kandungan Hidrokarbon Menggunakan Constructed Wetland Reactor Dalam Mengolah Limbah Minyak: Removal of Hidrocarbon Compounds Using Constructed Wetland Reactor to Treat Oily Wastewater Joni Aldilla Fajri; Dewi Wulandari; Awaluddin Nurmiyanto; Aster Rahayu
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.36

Abstract

Limbah minyak dari kegiatan perbengkalan otomotif umumnya dibuang langsung ke drainase sebelum masuk ke dalam badan air terdekat. Limbah minyak mengandung senyawa aromatik, hidrokarbon, logam dan lainnya yang sangat berpotensi merusak lingkungan. Low cost wastewater treatment seperti wetland memiliki efektifitas yang cukup baik untuk mengolah air limbah domestik dan air limbah spesifik. Oleh karena itu, tujuan penelitian ini adalah mengevaluasi kinerja reaktor kontinu wetland kombinasi dengan indigen bakteria dalam mereduksi zat pencemar limbah minyak. Konsorsium indigen bakteri ditambahkan ke dalam reaktor wetland (105 cm x 30 cm x 30 cm) yang terdiri dari kompartement Vertical floating wetland dan constructed wetland dan dioperasikan kontinu selama 30 hari dengan waktu tinggal total 15 hari. Hasilnya menunjukkan bahwa reaktor ini mampu menurunkan konsentrasi minyak-lemak 73-98%, Total Petroleum Hidorkarbon  77-99%, kandungan minyak 67-94%, dan juga minyak dan lemak 49 – 98%. Sehingga dapat disimpulkan, reactor continuous vertical flow wetlands kombinasi dengan indigen bakteri dan tanaman Vetiveria z mampu menurunkan kadar minyak-lemak, dan TPH. Oil and grease wastewater produced by the automotive workshop mainly introduces to the drainage without any prior treatment. Oily wastewater consists of aromatic compound, hydrocarbon, metal, and other contaminates that had major impairments into the environment. Low cost wastewater treatment e.q: wetland has satisfied performance to treat domestic wastewater and industrial wastewater. Therefore, the purpose of this study is to analyze the performance of continue wetland reactor combined with consortium indigenous bacteria to treat oily wastewater. Consortium indigenous bacteria were added to the three compartments in the reactor (105 cm x 30 cm x 30 cm); vertical floating wetland and constructed wetland, and it was operated for 30 days with the hydraulic residence time (HRT) for 15 days. As results, this reactor could reduce the concentration of oil-grease, total petroleum hydrocarbon (TPH), oil content, and oil grease (OG) at the level of 73-98%, 77-99%, and 49 – 98%, respectively. This result indicates that combination of consortium indigenous bacteria enhances the effectivity of reactor continuous vertical flow wetlands in degrading the oil-grease contaminants.

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