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STUDI EKSPERIMENTAL PROSES PIROLISIS LIMBAH SISA PRODUKSI SANDAL DITINJAU TERHADAP TEMPERATUR DAN WAKTU Agung S, Pramoda; Solichin, Mohammad
MEKANIKA: Jurnal Teknik Mesin Vol 1 No 01 (2015): July
Publisher : Program Studi Teknik Mesin, Universitas 17 Agustus 1945 Surabaya

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Abstract

Pyrolysis is defined as the process of thermal degradation of the solid by heating process in conditions oflittle or no oxygen, or other reagents that allow some conversion paths thermokimia so that these solids into gas(permanent gasses), liquid (pyrolitic liquid) and solids (char)In this experiment we used slippers waste as raw material. LPG gas stove as a heater in a system retort.denganpirollisis temperature variations of 150 ° C, 300 ° C, 350 ° C and 400 ° C with a variation of pyrolysis time of 60min, 90 min and 120 min. With the aim to produce a yield of carbon in the form of charcoal.The experimental results showed that the waste can be processed into a carbon sandals charcoal by pyrolysis.Carbon yield of charcoal produced from this experiment between 36% to 48% with an average yield of 41.425% Keywords: pyrolysis, the waste slippers, carbon charcoal.
ANALISIS PROFIL MUKA AIR DAN LUASAN GENANGAN DI LAHAN AKIBAT VARIASI POSISI SUDETAN SUNGAI CILIWUNG Parulian, Roganda; Bisri, Mohammad; Solichin, Mohammad
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 2 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Abstrak: DKI Jakarta dalam beberapa tahun terakhir sering mengalami banjir akibat luapan Sungai Ciliwung. Dengan adanya banjir yang terjadi maka pemerintah dalam hal ini Balai Besar Wilayah Sungai (BBWS) Ciliwung Cisadane-Kementerian Pekerjaan Umum mencoba memberikan solusi yang disebut Total Solution for Ciliwung. Salah satu kegiatannya adalah melakukan sudetan di Kalibata dan di Kebon Baru. Penelitian ini bertujuan untuk menganalisis sudetan Sungai Ciliwung. Lokasi Sudetan  ada 3 (tiga) lokasi, yaitu di Kalibata, di Kebon Baru, dan di Kampung Melayu. Perhitungan dilakukan dengan melakukan variasi posisi di tiga lokasi. Ada 7 variasi posisi yang dilakukan. Model simulasi menggunakan program bantu HEC-RAS 4.1.0. Hasil perhitungan menunjukkan variasi posisi 7 yaitu sudetan di Kalibata, di Kebon Baru dan di Kampung Melayu  menjadi variasi yang paling optimal dalam mengurangi banjir. Hasil sudetan dengan variasi posisi 7 adalah profil muka air di Patok 260 berupa aliran sub kritis/tenang dengan elevasi muka air +18,54 m atau berkurang 0,48 m dari kondisi eksisting +19,02 m. Luas genangan yang terjadi akibat sudetan dengan variasi posisi 7 sebesar 2,4143 km2 berkurang 0,6042 km2 (20,02%) dari kondisi eksisting 3,0185 km2.Kata kunci : DKI Jakarta, Sungai Ciliwung, variasi posisi, profil muka air, luas genangan . Abstract: In recent years, DKI Jakarta have been frequently flooded by The Ciliwung River. In this case, The government of Balai Besar Wilayah Sungai (BBWS) Ciliwung Cisadane-General Public Ministry of Pekerjaan Umum has been  trying to provide a solution which called Total Solution for Ciliwung. One of the Total Solution activities is doing diversion channel in Kalibata and Kebon Baru. This study aimed to diversion of Ciliwung River. There are 3 (three) locations of diversion. The location are in Kalibata, Kebon Baru, and Kampung Melayu. Calculation was done by variation of the position at three locations with 7 variations of position.  The model  of simulation  was using HEC-RAS 4.1.0 program.  The result of diversion in 7th variation position  is the water profile in the point 260 that form of sub critical flow/tranquil with water level +18,54 m or less 0,48 m from existing condition +19.02 m. Inundation area that caused by 7th variation position  of diversion is  2,4143 km2 reduced 0,6042 km2 (20,02%) from  existing condition  3,0185 km2.Keywords: DKI Jakarta, Ciliwung River, variation position, water profile, extensive inundation .