Bio-oil is one of the promising renewable energy that raw materials are sourced from agricultural waste and industrial but quality bio-oil still not good for fuel use. One methods to upgrading using esterification. Esterfication method reduces viscosity, water content, improving heating value. The purpose this research was by type concentration acid catalyst. Catalyst used H2SO4 HCl. result showed 1% catalyst which best in characteristic bio-oil. after esterification shows viscosity...

Studi kasus pengelolaan sampah rumahtangga di Wedomartani (Sleman, Yogyakarta, Daerah Istimewa) dan Banjarsari (Jakarta Selatan) memberikan perspektif alternatif untuk meminimalisasi timbunan yang dikelola oleh pemerintah melalui skenario daur ulang dengan mengkombinasikan aspek teknis, ekologi, ekonomi, sosial budaya, kebijakan kelembagaan. Tujuan dari kajian ini adalah mengetahui efektivitas efisiensi sumbernya Banjarsari; 2) membuat sintesis pola berbasis komunitas; 3) menguji...

Boiler ash is a second layer by-product of the combustion fuel, usually an agro-waste, in any industry.

Abstract Coconut fiber is a natural extracted from coconut coir, by-product of based product. It potential material for fiberboard because it contains high cellulose and lignin which similar to wood. Binderless medium density (MDF) was produced reduce the consumption wood emmission synthetic adhesives such as urea formaldehyde using binder. The purpose this research were determine physical mechanical properties MDF on SNI 01-4449-2006 JIS A 5905:2003 investigate effect oxidation treatment,...

Purpose The purpose of this paper is to develop a spatial intelligent decision support system (SIDSS) for increasing productivity in the rubber agroindustry by green (GP) approach. SIDSS was used measure plantation and GP approach, select best strategies agroindustry. Design/methodology/approach This developed combining analysis, GP, fuzzy analytic network process (ANP) with model-based management system, which able provide comprehensive meaningful alternatives development natural Rubber...

Cibanten river is one of the most potential to be developed as a source raw water. Crucial issues at increasing load water pollution indicated by parameter BOD, COD and TSS. This study aimed estimate amount Total Maximum Daily Load (TMDL) in river, analyze quality Status water, capacity assimilation, determine management strategy Banten Province. TMDL BOD were determined modeling Qual2KW results compared with second class standards regulation No. 82/2001. Management analysis an expert survey...

Bating is one of the processes in leather production. This process generally performed under slightly alkaline conditions, but it can also be done acidic conditions. Rhizopus oligosporus categorized as a microorganism that synthesize enzymes optimally study aimed to evaluate effect bating using acid protease from R. on qualities tanned by chromium sulfate. The used completely randomized design where crude enzyme activity (0, 2.5, 5, 7.5, and 10 U mL-1) was single treatment an experimental...

The palm oil mill effluent (POME) is generally treated using biological anaerobic treatment and then utilized for POME land application. This research aimed to study the effect of application on soil microbial community structure in plantation their impact productivity. results showed that ubiquinone (UQ) menaquinone (MK) contents soils without were 0.045 0.204 μmol/kg-dry soils, respectively. These much lower than UQ MK with which 0.074 0.301 μmol/ kg-dry diversity quinone (DQ) bioenergetic...

Cassava peel has high carbon content. It becomes potential as an adsorbent in adsorbing laundry phosphate compounds. Utilization of cassava into activated charcoal is effort to reduce waste from the processing industries. This study used two types peel, i.e. acid using HCl 0.4 M and alkaline KOH M. The objectives this research were determine: (1) optimum contact time adsorption at 30, 60, 90, 120, 150, 180 min treatment time; (2) pH value 4, 6, 8, 10; (3) capacity concentration 0.5%, 1%,...

Abstract The antistatic bionanocomposites could be synthesised using mono-diacylglycerols (M-DAG) as a agent, cellulose nanocrystals (CNC) reinforcement, and polypropylene (PP) an termoplastic matrix. purpose of this study was to determine the physical characteristics raw materials for synthesis bionanocomposites. Characteristics consists morphology analysis scanning electron microscopy (SEM), degree crystallinity particle size X-ray diffraction (XRD), Infrared spectrum fourier transform...

The production of cocoa beans in Indonesia into chocolate and other cocoa-derived products produces emissions that pollute the environment.This research aimed to calculate carbon footprint agroindustry using Life Cycle Assessment approach Lampung, Indonesia.The LCA under study is within scope Cradle Grave, starting from nurseries_cocoa plantations_dry beans_chocolate production_retail, consumers with emission function units per 1 kg product.The method refers ISO 14040:2006 life cycle...

Chicken meat agroindustry is one of the industries that contribute to environmental impacts. The impacts are due use resources, energy, and waste along chicken chain. This study aimed evaluate life cycle chain from cradle-to-grave using a assessment (LCA) approach. data inventory consisted inputs outputs five sub-systems: feed production, broiler production on farm, carcass at slaughterhouse, supplier distribution, consumer use. impact categories included global warming, acidification,...

Chromium (III) sulfate is a popular tanning agent for producing leather. However, chrome wastewater one of the problems in leather industry. To prevent this, using vegetable materials can be used process. One natural ingredients that mimosa. mimosa relatively expensive, so substitute/combination needed to make costs cheaper. This research aims determine effect combination and silicic acid from rice husk (RHSA) tanners on quality tanned produced. uses completely randomized factorial design...

Empty oil palm bunches (EFB) can be converted by hydrothermal carbonation process into biochar that used as low-cost adsorbent.This study aims to identify the effects of pretreatment and post-treatment using alkaline activators on characteristics produced from EFB.The activation was carried out before after pyrolysis heating it an autoclave at 121 °C for 90 minutes.Biochar then soaked NaOH or KOH with a concentration 0%, 4%, 8% 12% 3h.The ability adsorbent analyzed its absorb iodine...

Dari jumlah penjualan barang elektronik yang terus meningkat, Indonesia memiliki potensi limbah cukup besar dan setiap tahun bertambah. tersebut, perangkat bekas sebagian diolah oleh sektor informal dengan cara tidak ramah lingkungan karena ketiadaan kebijakan khusus tentang ini.  Jika hal ini terjadi, banyak pihak akan memanfaatkannya untuk menjadikan menjadi salah satu tujuan pembuangan ilegal di masa datang. Untuk mengatasinya, pemerintah harus memulai menjalankan sejumlah strategi...

Bagasse ashes have high silica content thus it can be used in nanosilicaproduction to increase its benefit value. This study aimed get the best time for synthesis and determine optimum temperature. hydrothermal method, a simple method with relatively low reaction temperature provide good chemical homogeneity. Time varieties synthesizing were 8,10 12 hours, at of 150 °C. But results not as expected. Moreover, optimization 4 hours °C based on previous studies. Optimization was conducted using...

This study aimed to audit environmental performance in gondorukem (resina colophonium) industry, analyze the main problem of waste and formulate direction industry development by cleaner production method. Data collection was conducted field observation, interview expert surveys. The analysis method used this research is which consist quick scan on stages process formulation option, continued prioritization with Analytic Hierarchy Process. case take place nagreg west java. Results showed...

Leather industry is known as that unfriendly to the environtment, since it produces a lot of wastes in its processes. The objectives this study were analyze material, energy and toxicity (MET) identify cleaner production strategies which can be applied leather tannery. This was survey research. method used purposive sampling, MET matrix, wastewater analysis, literature review, dan expert discussion. showed some chemical materials processing irritant, corrosive, carcinogenic; 29.5 m3and solid...

The objective of this study was to evaluate the pelt and wastewater characteristics after deliming process in an acid condition by tartaric acid, also wet blue properties that were formed. Various observed variables dose thickness, calcium content, physical chemical blue, such as tensile strength, tear elongation, shrinkage temperature, chrome oxide well pollutants content oxygen demand (COD), biological (BOD), total suspended solid (TSS), dissolve (TDS). experiment used a completely...

Boiler ash from sugar industry contains silica compounds which could be synthesized into nanosilica by ultrasonication method. The addition of surfactants in this synthesis method can affect the characteristics nanosilica. This study aims to synthesize with and determine effect on generated. research was divided three stages: (1) boiler preparation furnace ash, (2) extraction (3) using surfactant addition: PEG 6000 1:5, CMC 2.5% (b/b), 5% 10% Tween 80 3% (b/v). Silica content 49.69% 78.75%,...