50 research outputs found
Wastewater reclamation design from sewerage system for gardening activity in Universitas Pertamina
Daur ulang air limbah adalah salah satu dari kriteria inovasi berkelanjutan dalam tingkat perguruan tinggi. Reklamasi air dari sistem pembuangan limbah untuk kegiatan berkebun merupakan salah satu cara untuk mencapai target tersebut di Universitas Pertamina. Tujuan dari penelitian ini adalah mendesain dan memverifikasi unit pengolahan air dari saluran limbah menjadi air siap pakai untuk kegiatan berkebun. Unit yang dibutuhkan untuk sistem pengolahan air limbah adalah tangki pengumpulan, Horizontal Roughing Filters (HRF), Rapid Sand Filtration (RSF), reservoir, dan desinfeksi. Kualitas efluen yang diharapkan dari unit pengolahan adalah TDS 278 mg/L, TSS 1,3 mg/L, Kekeruhan 0,17 NTU, BOD5 0,63 mg/L, COD 6,12 mg/L, Fosfat total 0,95 mg/L, Nitrat 0,07 mg/L, deterjen 0,7 mg/L, dan total coliform MPN/100mL. Parameter yang paling penting dalam proses pengolahan air sewerage adalah total coliform yang harus mencapai efisiensi sebesar 99%. Pengolahan air dengan cara konvensional ini digunakan karena ketersediaan lahan yang masih mencukupi, jika tidak mencukupi maka diperlukan pengolahan lanjut yang efisien, ramah lingkungan, dan bernilai ekonomi.Wastewater recycling is one of the criteria for continuous innovation at the campus level. Reclamation of water from the sewage system for gardening activities is one way to achieve this target at Universitas Pertamina. The aim of this study is to design and verify a water treatment unit from sewage to ready-to-use water for gardening activities. The units needed for the wastewater treatment system are a tank, Horizontal Roughing Filter (HRF), Rapid Sand Filtration (RSF), reservoir, and disinfection. The expected quality of effluent from processing is TDS 278 mg/L; TSS 1.3 mg/L; Turbidity 0.17 NTU; BOD5 0.63 mg/L; COD 6.12 mg/L; Total phosphate 0.95 mg/L; Nitrate 0.07 mg/L; detergent 0.7 mg/L; and total coliform MPN/100mL. The most important parameter in the sewerage water treatment process is the total coliform which must achieve an efficiency of 99%. This conventional method of water treatment is used because the availability of land is still sufficient, if it is not sufficient then further processing that is efficient, environmentally friendly, and has economic value is required
Rancang Bangun Aplikasi Pembangkit Halaman HTML Untuk Pembuatan Media Cetak Digital Berbasis Windows Metro Style
Aplikasi dibangun dengan memanfaatkan Windows Metro Style agar dapat dijalankan pada sistem operasi Windows 8. Input dari aplikasi pembangkit halaman ini berupa HTML. Aplikasi ini menyediakan editor halaman HTML agar pengguna dapat mengubah isi halaman tanpa harus membuat ulang media dan juga dapat menampilkan daftar media yang pernah dibuat sebelumnya agar dapat dibuka sewaktu-waktu. Pengujian aplikasi dilakukan dengan menggunduh folder yang berisi file HTML, file HTML tersebut sebelumnya harus sudah diurutkan terlebih dahulu jika terdapat lebih dari satu file, contohnya: 01.html, 02.html, dll. File HTML yang sudah diinputkan, dibaca dan digabungkan di dalam aplikasi dengan menggunakan metode HTML tag extraction method. Metode tersebut bertujuan untuk mencari tag <body>, <script>, <h1>, dll. Halaman yang sudah digabungkan ditambahkan skrip menggunakan plugin BookBlock dan Booklet agar menyerupai tampilan atau format membuka pada buku maupun majalah. Output aplikasi berupa tampilan media cetak digital yang berjalan pada Windows 8. Dapat dijalankan menggunakan komputer pribadi maupun komputer tablet dengan sistem operasi Windows 8. Karena output aplikasi berupa halaman HTML, halaman tersebut dapat ditampilkan dalam browser dengan macam-macam perangkat. Akan tetapi, untuk keberhasilan tampilan halaman tergantung pada browser perangkat dan layar monitor perangkat
PENGENDALIAN EMISI DAN LIMBAH DARI INDUSTRI PENYEWAAN ALAT BERAT UNTUK INDUSTRI TAMBANG BATUBARA
The increasing number of waste-producing industries has led to the emergence of the application of the concept of industrial waste management, including in the heavy equipment rental industry which generates waste in every process of its activity. Not only does it reduce the potential for environmental pollution, this concept can also benefit from a fulfillment of obligations and cost savings. In order to support the achievement of this concept, field studies were carried out to determine the characteristics of the waste produced, as well as literature studies to determine the appropriate measures. After the analysis is carried out, the waste produced is solid waste in the form of used spare parts from the checking and replacement of spare parts, liquid waste in the form of sludge containing detergent, oil and water from the washing process, and CO2 emissions from energy use. Waste minimization is the main effort in industrial waste management and can be achieved by reducing CO2 emissions and applying technology in the form of a gravity separator for wastewater treatment. Processed liquid waste can be reused as clean water so that it can reduce usage and costs for clean water.The increasing number of waste-producing industries has led to the emergence of the application of the concept of industrial waste management, including in the heavy equipment rental industry which generates waste in every process of its activity. Not only does it reduce the potential for environmental pollution, this concept can also benefit from a fulfillment of obligations and cost savings. In order to support the achievement of this concept, field studies were carried out to determine the characteristics of the waste produced, as well as literature studies to determine the appropriate measures. After the analysis is carried out, the waste produced is solid waste in the form of used spare parts from the checking and replacement of spare parts, liquid waste in the form of sludge containing detergent, oil and water from the washing process, and CO2 emissions from energy use. Waste minimization is the main effort in industrial waste management and can be achieved by reducing CO2 emissions and applying technology in the form of a gravity separator for wastewater treatment. Processed liquid waste can be reused as clean water so that it can reduce usage and costs for clean water
Advances in Social Media Research:Past, Present and Future
Social media comprises communication websites that facilitate relationship forming between users from diverse backgrounds, resulting in a rich social structure. User generated content encourages inquiry and decision-making. Given the relevance of social media to various stakeholders, it has received significant attention from researchers of various fields, including information systems. There exists no comprehensive review that integrates and synthesises the findings of literature on social media. This study discusses the findings of 132 papers (in selected IS journals) on social media and social networking published between 1997 and 2017. Most papers reviewed here examine the behavioural side of social media, investigate the aspect of reviews and recommendations, and study its integration for organizational purposes. Furthermore, many studies have investigated the viability of online communities/social media as a marketing medium, while others have explored various aspects of social media, including the risks associated with its use, the value that it creates, and the negative stigma attached to it within workplaces. The use of social media for information sharing during critical events as well as for seeking and/or rendering help has also been investigated in prior research. Other contexts include political and public administration, and the comparison between traditional and social media. Overall, our study identifies multiple emergent themes in the existing corpus, thereby furthering our understanding of advances in social media research. The integrated view of the extant literature that our study presents can help avoid duplication by future researchers, whilst offering fruitful lines of enquiry to help shape research for this emerging field
Determination of Rain Intensity Based on Rain Characteristics Observed from Rain Observation Stations Around South Jakarta
South Jakarta has the highest rainfall concentration and the most flood location in Jakarta. Therefore, an urban drainage system is needed to control surface water so flood can be prevented. This research aims to support the urban drainage system planning by determining rainfall intensity based on three methods, those are Van Breen, Bell Tanimoto, and Hasper der Weduwen. The most suitable method will be selected by comparing the value of rainfall intensity with Talbot, Sherman, and Ishiguro approach. This research reveals that the most suitable method is the Van Breen Method with the Talbot equation. The result of the calculation is rainfall intensity for 2, 5, 10, 25, 50, and 100 years rain return period, with each range 27.2 – 182.8 mm/hour, 36.8-197.6 mm/hour, 43.1-206.3 mm/hour, 51.1-216.6 mm/hour, 57-223.9 mm/hour, and 63-230,8 mm/hour
The Boy in the Mirror: A Tale of Radical Queer Muslim Liberation
This photo-series & its connected narrative captures the ornate reality of identifying as a Queer Muslim of color. The photos were beautifully curated by a photographer and dear friend of mine, Khansa Noor. The images are meant to visually conceptualize how queerness can manifest outwardly in one\u27s bodily expressions and demeanor. The guilt, shame, and relief that I described in the narrative translates intimately in my brown skin and my movements. Both pieces merge to illustrate the layers of queer Muslim survival in concealing one\u27s queerness while simultaneously remaining unequivocally bold in queer spaces
Composition of Functional Bacteria on Suppressive and Conducive Soil for Fusarium Wilt on Chilli (Capsicum annum)
Fenomena tanah supresif telah banyak dikaji sebagai metode pengendalian penyakit tanaman alami di lapangan dan dicirikan dengan banyaknya sejumlah mikrob fungsional yang mampu menekan populasi patogen. Penelitian ini bertujuan mengetahui dan membandingkan komposisi bakteri fungsional pada tanah supresif dan kondusif layu fusarium. Metode penelitian terdiri atas pengambilan sampel tanah di lapangan, isolasi bakteri fungsional dari sampel tanah supresif (TS) dan kondusif (TK), penghitungan populasi dan jenis bakteri, penapisan berdasarkan keamanan hayati, dan karakterisasi bakteri fungsional dalam menekan Fusarium oxysporum. Hasil penelitian menunjukkan bahwa populasi bakteri pada TS lebih tinggi dibandingkan TK, khususnya bakteri toleran panas dan Pseudomonas kelompok fluorescent. Hal ini didukung dengan tingginya nilai keanekaragaman bakteri fungsional pada TS (H’ 3.70 > 3) dibandingkan TK yang tergolong sedang (1 < H’ 2.07 < 3), dengan sebaran bakteri fungsional tergolong hampir merata dan tidak ditemukan adanya dominansi jenis tertentu pada TS maupun TK. Persentase bakteri nonpatogenik pada TS lebih tinggi dibandingkan TK, masing-masing 51% dan 23%. Bakteri tersebut berpotensi sebagai plant growth promoting bacteria (PGPB) dengan memproduksi IAA atau melarutkan fosfat saja, masing-masing 24% dan 10% pada TS, sedangkan pada TK masing-masing 14% dan 29%. Hanya bakteri yang berasal dari tanah supresif yang mampu memproduksi IAA sekaligus melarutkan fosfat dengan persentase sebanyak 48%
Implementation of Spatial and Regional Plan Policies and Disaster Resilient Villages in West Nusa Tenggara
West Nusa Tenggara is located on active fault line along the Lombok and Sumbawa Faults, which often causes high magnitude earthquakes and can cause major impact on society, environment and infrastructure. The purpose of this study is to determine the implementation of spatial and regional planning policies in earthquake risk reduction in West Nusa Tenggara. The method used in this research is descriptive qualitative research using purposive sampling technique and literature study. The informant of this research is the Planning Analyst of the Regional Planning and Development Agency of West Nusa Tenggara. The result of this research is that disaster risk management strategies are implemented collaboratively between agencies from various sectors. In the pre-disaster stage, the local government ensures the readiness of the region and the community against the potential threat of natural disasters, by forming disaster resilient villages. Spatial and regional plan policies in West Nusa Tenggara are directed at natural disaster mitigation and adaptation to reduce disaster risk