Highlight Research:The potential calorific value of marine debris obtained from calculating the total waste is 12.05 MJ/kg, which still falls within incinerator application's standard criteria. AbstractMarine debris, a global environmental issue today, major threat to Bali’s seas are famous for its natural beauty and aggravated by spread COVID-19 pandemic. This study aimed determine characteris...

Solar dried sewage sludge (SS) conversion by pyrolysis and gasification processes has been performed, separately, using two laboratory-scale reactors, a fixed-bed pyrolyzer and a downdraft gasifier, to produce mainly hydrogen-rich syngas. Prior to SS conversion, solar drying has been conducted in order to reduce moisture content (up to 10%). SS characterization reveals that these biosolids coul...

Background Research shows that jasmonic acid (JA) and Methyl Jasmonate (MJ), compounds that participate in the metabolism’s control, development and protection of plant processes [1], also possess anticancer activities [2]. In studies, researchers found that Jasmonate were able to inhibit the growth of human cancer cells, and MJ induced death in lung carcinoma cells [3], breast, prostate, melan...

The aim of this work was to study the characteristics of solid and liquid products from the torrefaction of oil palm fiber pellets (OPFP) in inert and oxidative environments. The torrefaction temperature and O2 concentration in the carrier gas were in the ranges of 275-350°C and 0-10 vol%, respectively, while the torrefaction duration was 30 min. The oxidative torrefaction of OPFP at 275°C dras...

Energy is very essential to human livelihood and makes significant help economic, social, environmental features of development. Biomass certainly a source renewable energy worldwide abundant with high potential. This research aimed characterize produce briquette fuel from the combination coconut husk corncob using starch as binder. The composite briquettes were produced by varying mixture rati...

The optimal conditions for the torrefaction of mixed softwood were investigated by response surface methodology. This showed that the chemical composition of torrefied biomass was influenced by the severity factor of torrefaction. The lignin content in the torrefied biomass increased with the SF, while holocellulose content decreased. Similarly, the carbon content energy value of torrefied biom...

1. Eighteen male sledge dogs were weighed immediately on removal from their sheltered winter quarters at Halley Bay, Antarctica (75 degrees 31' s, 26 degrees 42' W) and weekly thereafter for 14 weeks. The first 2 weeks they were tethered and inactive and the following 12 weeks travelled an average of 10.9 km/d fully laden. Daily energy intake during winter and while tethered averaged 18-25 MJ/d...

The purpose of this study is to assess the energy savings and emission reductions of the present rural biogas system in China. The life cycle assessment (LCA) method is used to analyze a "pig-biogas-fish" system in Jingzhou, Hubei Province, China. The nonrenewable energy cost and the greenhouse gas (GHG) emissions of the system, including the pigsty, the biogas digester, and the fishpond, are t...

Isopropil alkohol merupakan bahan kimia yang banyak digunakan di industri salah satunya sebagai baku antiseptic hand sanitizer. Berdasarkan proses pemisahan isopropil alkohol-air terhalang oleh titik azeotrop sehingga tidak dapat dipisahkan menggunakan distilasi konvensional. Distilasi tepat untuk campuran yaitu ekstraktif dengan bantuan gliserol solvent. Penelitian ini bertujuan mengetahui pen...