The Effect of Adding Vinasse for Biochar Production from Bagasse by Pyrolysis Method

Jurnal Teknik Kimia dan Lingkungan Pub Date : 2023-04-30 DOI:10.33795/jtkl.v7i1.1373

E. Naryono, Susanto Susanto, M. A. I. Iswara, Cucuk Evi Lusiani

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Abstract

The increasing industrial waste was caused problems for the environment. Bagasse is a solid waste produced from the sugar industry. Vinasse is bioethanol industry liquid waste from molasses which contains much nutrients. The vinasse and bagasse in this study was developed into biochar. This study aimed to determine the effect of vinasse addition on biochar characteristics. The yield and characteristics of the biochar were then compared. Based on gravimetric, pH, and SEM-EDX analysis, the result indicated that adding vinasse to the biochar was increasing yield, water content and ash content, lowering pH, and tend to increase nutrient levels (carbon, nitrogen, and potassium). The biochar produced from bagasse and vinasse by pyrolysis had a yield of 6.682-9.406%; water content of 7.0-8.2%; ash content of 4.8-13.6%; at pH 8.4-88; carbon content (C) of 65.07-80.88%; nitrogen (N) content of 2.06-8.66%; and potassium (K) levels of 0.00-2.15%, while phosphorus (P) levels were not detected in SEM-EDX analysis. Based on the consideration of the highest levels of nitrogen and potassium elements needed by plants, the optimum biochar was obtained from bagasse with a vinasse of 7.5%.

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添加酒糟对蔗渣热解制生物炭的影响

越来越多的工业废物给环境带来了问题。蔗渣是制糖工业产生的固体废物。Vinasse是一种来自糖蜜的生物乙醇工业液体废物，含有大量营养物质。本研究中的酒糟和甘蔗渣被开发成生物炭。本研究旨在确定添加酒糟对生物炭特性的影响。然后比较了生物炭的产率和特性。基于重量分析、pH值和SEM-EDX分析，结果表明，在生物炭中添加酒糟可以提高产量、水分和灰分，降低pH值，并倾向于增加营养水平（碳、氮和钾）。以蔗渣和酒糟为原料，经热解得到的生物炭产率为6.682-9.406%；含水率为7.0-8.2%；灰分4.8-13.6%；pH为8.4-88；碳含量（C）为65.07-80.88%；氮含量为2.06-8.66%；而在SEM-EDX分析中未检测到磷（P）水平。在考虑植物所需氮和钾元素最高水平的基础上，从酒糟为7.5%的蔗渣中获得了最佳的生物炭。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Jurnal Teknik Kimia dan Lingkungan

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审稿时长

12 weeks