JOURNAL OF ENVIRONMENTAL MANAGEMENT AND TECHNOLOGY

Analisis Timbulan, Komposisi, Karakteristik dan Potensi Daur Ulang Sampah Bandara Internasional Minangkabau (BIM)

yommi dewilda — Tue, 19 Apr 2022 00:00:00 +0000

This study aims to measure and analyze the generation data, composition, recycling potential and characteristics as well as a preliminary study of waste processing in the Minangkabau International Airport (BIM). Sampling generation and determination of the number of samples carried out based on SNI 19-3964-1994 conducted for eight consecutive days with sampling locations at 16 points including BIM facilities with a confidence level of 99.95%. The results showed the average generation unit of BIM waste was 0.09341 kg / person / day in units of weight or 1.87111 liters / person / day in units of volume. The composition of BIM waste consists of 87.49% organic waste consisting of 24.76% paper waste, 20.66% plastic waste, page waste 15.90%, wood waste 11.01%, food waste is 8.73%, textile waste 4.73%, rubber waste 1.72% and inorganic waste 12.51% consisting of glass waste 10.23%, non-ferrous metals 1.45% and other waste 0 , 84%, the potential for recycling of BIM waste is paper waste of 52.77%, plastic waste of 91.27%, glass and non-ferrous metal waste of 100% and organic waste of 57.00%. The average density of garbage is 0.53 kg / l, water content is 16.05%, volatile content is 78.45%, ash content is 4.55%, fixed carbon is 0.95%, C / N ratio is 28.28% and biodegradability fraction 51.31%. Based on these data for alternative BIM waste treatment is composting with Rotary Kiln, recycling, compaction and combustion.

Keyword: characteristic, composition, recycling potency, waste of Minangkabau International Airport , generation.

Restorasi Hutan Mangrove Di Kecamatan Teluk Mengkudu Kabupaten Serdang Bedagai Sumatera Utara (Studi Kasus)

Yulliza Salwa, Dr. Ir. Munir Tanjung, MM, Sarah Patumona, SKM, Msc — Tue, 19 Apr 2022 00:00:00 +0000

Mangrove dapat mengurangi gelombang laut dan dampak angin, melawan bencana, sebagai penahan abrasi, dan mempertahankan lingkungan pantai sekitar. Oleh karena itu diperlukan upaya perlindungan dan pemanfaatan secara lestari. Penelitian ini memiliki tujuan memberikan gambaran kondisi hutan mangrove dan strategi penanggulangan restorasi di Kecamatan Teluk Mengkudu. Penelitian ini menggunakan metode Purposive Sampling dan simple random sampling method, populasi yang digunakan ialah hutan mangrove yang berada di pesisir Kecamatan Teluk Mengkudu. Diperoleh 3 stasiun yaitu di Desa Sialang Buah, Sentang dan Bogak Besar. Dari hasil penelitian didapatkan hutan mangrove di Kecamatan Teluk Mengkudu memiliki kategori rusak berat (jarang) dengan kerapatan 741 ind/Ha. Adapun strategi restorasi mangrove yaitu langkah pertama penelitian awal mengetahui kondisi ekologi pasisir dan keanekaragaman mangrove, kedua sosialisai ke masyarakat dan membuat tim, ketiga pembuatan bedeng, keempat pembibitan dengan total jumlah bibit 145.500 bibit dan bibit penyulaman 29.100 yang akan ditanam di 4 desa, langkah kelima pembuatan bangunan hybrid engineering dengan total panjang perencanaan 5.300 m. langkah keenam penanaman mangrove, ketujuh penyulaman dan terakhir pemeliharaan.

Plumbing system design in Education Hospital of Jambi University

Freddy Ilfan — Tue, 19 Apr 2022 00:00:00 +0000

The plumbing system is an inseparable part of the building. Planning and implementation of plumbing system work must be carried out in accordance with the building planning stages. The plumbing system planning in the Jambi University Hospital building includes a clean and hot water supply system, a waste water distribution system, a vent system and a fire prevention system. The method of calculating water demand is using fixture unit of plumbing equipment, determining the size of the water pipe using pipe equivalence, and determining the sprinkler system using the provisions in Indonesian National Standard No. 03-3989 of 2000. The need for clean water in this design is 93,600 liters/day and the waste water produced is 74,880 liters/day. The pipe sizes for clean water, hot water, waste water and vent pipes used include 13 mm, 16 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 65 mm, 75 mm and 100 mm, respectively. The type of pipe used is PVC pipe. For fire prevention, the building requires 615 sprinkler heads and 30 hydrants.

Proses Ozonasi Untuk Pemanfaatan Kembali Buangan Akhir Pengolahan Pome Sebagai Air Baku Di Industri Minyak Sawit

Jecky asmura — Tue, 19 Apr 2022 00:00:00 +0000

Buangan akhir pengolahan POME merupakan permasalahan industri minyak sawit saat ini karena tidak mencapai baku mutu yang telah ditetapkan dan dapat merusak kehidupan pada biota akuatik. Penelitian ini bertujuan mengolah buangan akhir pengolahan POME menggunakan metode ozonasi untuk menyisihkan parameter chemical oxygen demand (COD) dan total suspended solid (TSS) sehingga dapat memenuhi baku mutu yang berlaku dan hasil olahan dapat digunakan sebagai air baku di industri minyak sawit. Penelitian ini didahului dengan penentuan konsentrasi ozon yang terbentuk dari alat generator ozon. Tahap selanjutnya dilakukan pengolahan limbah buangan akhir pengolahan POME dengan metode ozonasi dengan variasi laju alir udara ambien yaitu 2; 3; 4 dan 5 L/menit dan waktu kontak dengan variasi 0; 5; 10 dan 15 menit. Hasil penelitian menunjukkan terjadinya penurunan konsentrasi COD dan TSS. Penurunan konsentrasi COD terbaik terjadi pada waktu kontak15 menit untuk laju alir udara ambien 2 L/menit dengan efisiensi penyisihan sebesar 20%. Efisiensi penyisihan konsentrasi TSS terbaik yaitu sebesar 85,7% terjadi pada waktu kontak 5 menit untuk laju alir udara ambien 4 L/menit , pada waktu kontak 10 menit untuk laju alir udara ambien 5 L/menit, dan pada waktu kontak 15 menit untuk laju alir udara ambien 4 dan 5 L/menit.

Analisis Spasial Tingkat Kebisingan Aktivitas Transportasi (Studi Kasus: Persimpangan Jl. Sisingamangaraja – Jl. A. H. Nasution Kota Medan)

Isra ST M.Si — Tue, 19 Apr 2022 00:00:00 +0000

The source of road traffic noise comes from motorized vehicles, both two-wheeled, four-wheeled and heavy vehicles. This study aims to determine the noise level at the intersection of Jl. SM Raja– Jl. A. H. Nasution Medan City and determine appropriate controls to reduce noise levels. The measurement method used refers to KepMenLH No. 48 of 1996. Vehicle speed measurements and traffic volume calculations are carried out on holidays and weekdays at 31 measurement points. The results of the sampling were mapped using Surfer version 15 and determined the noise control efforts at the Jl.SM Raja–Jl. A. H. Nasution Medan which is superimposed with a screenshot of the google maps map. The results obtained from the noise level ranged from 71.3 dBA - 85.2 dBA on holidays and on weekdays obtained a noise level of 79.3 dBA - 85.3 dBA. Based on the mapping with Surfer 15, the highest noise level was obtained at point 1. The recommended noise control alternatives such as planting 1.2 m tall plants with 16.65 m2 of vegetation, installing brick walls as high as 2.8 m, regulations on honing the horn, diverting the flow of rickshaw traffic on weekdays and vary the receptor safe distance with the noise source.

Triggering Time Difference Test Study, Boiling Water and Flame on Citrus Wood Waste Biomass Briquettes

Restu Auliani, Fiore Crislia Viranti, Desy Ari Apsari — Tue, 19 Apr 2022 00:00:00 +0000

This study aims to find out the manufacture of charcoal briquettes as an alternative fuel that is environmentally friendly. This research utilizes orange trees waste which is usually used as firewood but produces abundant smoke which can cause environmental problems. This wood processing research was carried out using the combustion method with a pyrolysis system. The results showed that the treatment of mixing orange tree charcoal with coconut shell charcoal had a significant effect on the duration of the flame. The volume of the waste is abundant, the availability of which will not run out, and can be processed into briquettes, will strengthen energy security. Through the results of the study, it is known that several variations are as follows: variation A, 700 grams of citrus wood: 300 grams of coconut shell; variation B, 300 grams of citrus wood: 700 grams of coconut shell, and variation C, 500 grams of citrus wood: 500 grams of coconut shell. Variation B briquettes are the best because these briquettes contain the most coconut shells.