Kajian Pembakaran Sampah Plastik Polystyrene (PS) Terhadap Emisi, Suhu Pembakaran, Dan Destruction Removal Efficiency Pada Insinerator

Yuliawati, Asri Anisa (2020) Kajian Pembakaran Sampah Plastik Polystyrene (PS) Terhadap Emisi, Suhu Pembakaran, Dan Destruction Removal Efficiency Pada Insinerator. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh faktor operasi insinerator. Faktor operasi yang dipilih yaitu feeding rate dan excess air. Kedua faktor ini menjadi control terhadap temperature, time, dan turbulence (3T) dalam pengoperasian insinerator. Feeding rate dan excess air dijadikan variabel dalam penelitian ini. Feeding rate dan excess air diteliti pengaruhnya terhadap emisi, suhu pembakaran dan Destruction Removal Efficiency (DRE). Selain itu juga bertujuan untuk menentukan nilai feeding rate dan excess air yang mamou menghasilkan emisi paling rendah dan suhu pembakaran paling tinggi. Variabel feeding rate divariasikan dari 2 kg/jam – 31 kg/jam. Sedangkan untuk variabel penambahan excess air dimulai dari 5%, 15%, dan 25%. Selain itu juga memperhitungkan desain dari Insinerator Departemen Teknik Lingkungan ITS. Penelitian dilakukan dengan simulasi persamaan matematis. Nilai DRE dihitung dengan rumus DRE yang berdasar pada jumlah sampah yang terdestruksi menjadi abu. Dimana produksi abu dihitung dengan menggunakan fraksi kandungan abu. Untuk parameter emisi dan suhu pembakaran menggunakan dan rumus desain insinerator. Rumus desain insinerator ini didasari oleh kesetimbangan persamaan reaksi pembakaran yang terjadi. Sampah yang dibakar yaitu sampah dengan komposisi homogen. Hanya terdiri dari sampah plastik polystyrene dengan rumus senyawa (C8H8)x. Proses pembakaran yang terjadi diasumsikan sempurna, menghasilkan CO2 dan H2O. Dari hasil simulasi pembakaran pada insinerator secara teoritis pada penelitian ini, diketahui bahwa semakin tinggi feeding rate maka semakin tinggi pula emisi dan suhu pembakaran yang ii dihasilkan. Untuk hasil analisis pada variabel excess air, semakin besar persentase excess air yang ditambahkan, suhu pembakaran yang dicapai semakin rendah. Dari hasil penelitian juga didapatkan bahwa emisi CO2 dan N2 paling rendah dihasilkan pada feeding rate 2 kg/jam pada semua variasi excess air yaitu sebesar 6,764 kgCO2/jam dan 20,585 kgN2/jam. Sedangkan suhu pembakaran paling tinggi dihasilkan pada feeding rate 31 kg/jam dengan variasi excess air 5% yaitu sebesar 1185,271 celsius. Serta untuk nilai DRE diperoleh sama untuk semua variasi feeding rate sebesar 99,96%. ========================================================= This study aims to determine the effect of feeding rate and excess air on emissions, combustion temperatures, and Destruction Removal Efficiency (DRE). In incineration operation, these two factors control the temperature, time, and turbulence (3T). This study also aims to determine the value of feeding rate and excess air which can produce the lowest emissions and the highest combustion temperature. The value feeding rate used in this study is varied from 2 kg/hour - 31 kg/hour. Whereas the variation of the addition of excess air in this study is 5%, 15%, and 25%. It also takes into account the design of the ITS Environmental Engineering Department Incinerator. The study was conducted using mathematical equations simulation. The DRE value is calculated using a formula based on the amount of waste that is reduced to ash. As for ash production, it is calculated using the ash content fraction. Emissions and combustion temperatures are estimated using the incinerator design formula. This incinerator design formula is based on the equilibrium of the combustion reaction that occurs. Homogeneous waste is used in this study. Where it only consists of polystyrene plastic waste with the empirical formula of (C8H8)x. The combustion process that occurs is assumed to be complete, producing CO2 and H2O. From the theoretical results of the combustion simulation in this study, it is known that the feeding rate has a proportional relationship with the emissions and the resulting combustion temperature. The higher the feeding rate, the higher the emissions and combustion temperatures produced. While excess air has an iv inverse relationship with the combustion temperature. The bigger the percentage of excess air added, the lower the combustion temperature achieved. The results of this research also show that the lowest CO2 and N2 emissions were generated at a feeding rate of 2 kg/hour in all variations of excess air. With 6.764 kgCO2/hour and 20.585 kgN2/hour are generated. While the highest combustion temperature achieved is 1185.271 Celsius with 31 kg/hour feeding rate at 5% excess air. For all variations of feeding rate the DRE values obtained having the same value, in which 99.96%.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: insinerasi plastik polystyrene, DRE, feeding rate, excess air, emisi polystyrene incineration, DRE, feeding rate, excess air, emission
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD796 Incineration. Incinerators
T Technology > TD Environmental technology. Sanitary engineering > TD883.5 Air--Pollution
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User: Asri Anisa Yuliawati
Date Deposited: 19 Aug 2020 03:49
Last Modified: 19 Aug 2020 04:19
URI: https://repository.its.ac.id/id/eprint/78564

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