Biodiesel is one of the products resulting from initiation energy diversification which can overcome crisis both in Indonesia and world. reduce combustion emissions. The purpose this study was to produce biodiesel waste cooking oil (WCO). conducted using simultaneous esterification-transesterification method with help a catalyst. catalyst used bifunctional catalyst, namely CaO/Fe2O3. Waste raw materials were analyzed by GC-MS, while SEM-EDX XRD. calcination temperature varied at 750-950°C...

Application of Spirulina platensis (Gomont) Geitler into food product can be used for producing functional and improve its nutritional value. However, some bioactive compounds containing in S. are heat sensitive, therefore processing techniques need to strictly considered. It is necessary observe the application powder different products ice cream soft cheese which was relatively low temperature protect from damage. contains approximately 55 % 70% protein utilization on expected Innovation...

Biodiesel is a promising renewable fuel with lower emissions and environmental friendliness. This study investigates the potential of CaO/MgO/Fe3O4 nanomagnetic catalyst synthesized from dolomite iron sand for biodiesel production waste cooking oil. The was characterized using XRD, SEM, PSA techniques. influence loading, Fe3O4:CaO/MgO mass ratio, calcination temperature on yield investigated. optimal reaction conditions were found to be 1% w/w weight ratio 1:7.5 w/w, 1000°C temperature,...

The use of antibiotics has increased in the last five years due to COVID-19 pandemic, which led an increase antibiotic concentrations wastewater. Therefore, there is a need for implementation technology degradation. This research aimed determine efficiency advanced oxidation process (AOP) using combination UV/H2O2 degradation was conducted amoxicillin batch-wise experiment. Response Surface Methodology with Central Composite Design (RSM-CCD) employed optimize process. result revealed that...

The flocculation efficiency and biomass recovery are key characteristics to consider measure when researching solid–liquid separation during the harvesting process of Chlorella sp. microalgae. Response surface methodology (RSM) with a central composite design (CCD) is used in conjunction chitosan as bio-flocculant improve parameters. pH, dosage, cationic inducer dose all factors that have been determined. A multiple response optimization approach was effectively estimate optimal parameters,...

Biodiesel is fatty acid methyl or ethyl esters made from vegetable oils (edible and non edible) animal fats. The objective of this research was to produce biodiesel rubber seed by in situ method with catalyst a goal for obtaining environmentally friendly alternative fuels edible raw material. This focuses on influence reaction time, concentration ratio material methanol. first stage carried out order get time based the density viscosity mixture produced. In process H2SO4 0.5% (v/v) used as...

ZSM-5 is a synthetic zeolite which contains silica (Si) and alumina (Al) with the ratio of greater than alumina. The catalyst known as because it has pore diameter 5 Å (angstroms) more five Si/Al ratios. high production cost complex process highly influenced by time temperature. Based on that fact, focus this research studying investigating effect temperature crystallinity morphology ZSM-5. In research, Latourette et al. method was used, followed calcination at different temperatures (500...

Nowadays, the use of homogenous catalyst has been gradually reduced for its operational reason. The leads in difficulty separation after process completed and life cycle is shorter. Therefore, most researches are introducing heterogenous substitution. This research was aimed to evaluate shell Anadara granosa CaCO3 as source CaO based through impregnation method. preparation started by decomposition shells at temperature 800 oC 3 hours, followed 70 4 hours then calcined 2 hours. gained high...

Pemerintah Indonesia melalui Rencana Umum Energi Nasional (RUEN) menetapkan kebijakan bauran EBT sebesar 23% di tahun 2025. Salah satu upaya yang dilakukan adalah dengan cofiring biomassa pada PLTU Batubara. sebagai negara penghasil kelapa sawit terbesar dunia, otomatis menghasilkan limbah besar. Dari 1 ton Tandan Buah Segar (TBS), dihasilkan sebanyak 21% Kosong Kelapa Sawit (TKKS). kosong dibiarkan menumpuk dan tidak termanfaatkan. dapat dimanfaatkan bahan bakar pembangkit uap listrik....

Energy demand will increase along with the in population. The current energy is dominated by non-renewable as it could reduce dependence on fossil sources; hence, imperative to be developed. Biodiesel waste cooking oil its raw material one of renewable energies currently being Catalyst can utilized improve quality biodiesel product and process. major content solid geothermal power plant silica oxide, while dolomite contains magnesium oxide calcium oxide. This study aims test MgO-CaO/SiO2...

In Indonesia, coal-fired power plants (CFPP) account for nearly 70% of the nation’s electricity supply, contributing significantly to global warming. Biomass co-firing program CFPP offers a potential solution. This study analyzes impact between blending Low Rank Coal (LRC) with Medium (MRC) and wood pellet biomass, on performance 615 MW capacity CFFP. Using simulations Cycletempo software, research examines operational parameters such as plant efficiency, auxiliary equipment, techno-economic...

Calcium reduction of bone is crucial to collagen purification and gelatin synthesis from fish bones. Research on the effect immersion time calcium products assisted by ultrasound at 950 W 25 kHz bones Himantura gerrardi stingrays has been carried out. This study used 0.1 M EDTA disodium salt as a chelating agent form complex Ca-EDTA compounds with variations in for 0, 2, 4, 6, 10, 16, 18, 20, 22, 24 hours. The results X-ray fluorescence (XRF) analysis showed that soaking hours produced level...

The conversion of palm acid oil and bulk cooking into biodiesel presents considerable opportunities while employing catalysts. development effective catalysts, which may improve both esterification transesterification processes, is essential for optimizing production from these feedstocks. This study investigates a mixture (PAO) using an Fe/aluminosilicate catalyst synthesized via the wet impregnation method. Fe was derived iron sand, geothermal waste employed as source aluminosilicate...