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This study comprehensively evaluates the quality of biomass briquettes produced from blends of coconut shell charcoal and sengon sawdust, using both carbonized and non-carbonized materials. Composite briquettes were fabricated with varying compositions and characterized through proximate analysis, calorific value, density, and burning rate measurements to determine their suitability as solid fuel. The results indicate that adding non-carbonized sawdust increases volatile matter content and burning rate but reduces the calorific value of the briquettes. In contrast, incorporating up to 10% carbonized sawdust significantly improves the calorific value to 6119.2 cal/g, approaching that of pure coconut shell charcoal (6352.2 cal/g), while maintaining a relatively high burning rate. Briquettes containing carbonized sawdust also exhibit low ash content, below 3%, and moisture content under 8%, meeting standard solid fuel quality requirements. These findings demonstrate that a strategic combination of carbonized and non-carbonized materials can produce hybrid biomass briquettes with optimized thermal performance, providing a promising, sustainable, and environmentally friendly alternative fuel for domestic and industrial applications.

Waste candlenut shells are one type of biomass that has significant potential to be developed as an alternative energy source, particularly in the form of briquettes. Candlenut shells, which are typically discarded as agricultural waste, contain combustible material that can be transformed into solid fuel. However, the traditional briquette molding process is still done manually, which is time-consuming, inefficient, and often results in inconsistent briquette shapes and density. This study aims to design and develop a briquette molding machine specifically for processing candlenut shell waste, with the goal of improving both production efficiency and the quality of the briquettes produced. The research methodology includes several stages: mechanical design, selection of appropriate materials, fabrication of machine components, assembly, and performance testing of the machine. The resulting machine utilizes a screw conveyor compression system powered by a 5.5 HP petrol engine. It features a cylindrical mold with a 40 mm diameter to shape the briquettes uniformly. During the performance test, the machine demonstrated a maximum production capacity of 14.3 kg per hour, with an average processing time of 24 minutes and a briquette yield reaching up to 85%. The findings indicate that the machine can significantly streamline the briquette production process while maintaining product consistency and quality. This briquette molding machine is particularly suitable for household and small-scale industries aiming to utilize renewable energy sources and reduce dependency on fossil fuels. The use of this machine also supports environmental sustainability by converting agricultural waste into a usable energy product.  

This research was carried out using a qualitative method through a direct survey conducted in Tangga Batu Village. The main goal of this study is to utilize corn cob waste into an alternative fuel product in the form of briquettes that is more environmentally friendly. Corn cobs are one of the abundant agricultural wastes, but they are often not used optimally. Through simple innovations, this waste can be processed into alternative energy sources that have economic value while having added value for the surrounding community. The process of making briquettes begins with the preparation of equipment which includes a kiln, mold, drying container, mash tool, strainer, and scale. The main ingredient is corn cobs that are first dried in the sun for 3–4 days to reduce the moisture content by 10–20%. Additional materials used are tapioca flour as an adhesive, small amounts of diesel, and water. The next stage is to compose the corn cobs in the burning pit for 20–30 minutes until they become charcoal. The charcoal is then scraped using a simple tool and sifted to separate the fine and rough parts. The fine charcoal is mixed with a starch adhesive from tapioca flour, then molded using a simple mold and compacted through a pressing process to produce good quality briquettes. Next, the briquettes are dried in the sun for 2-3 days until they are completely dry and ready to be used as fuel instead of wood or kerosene. The results of the study show that corn cob waste has great potential to be used as an alternative fuel. In addition to being environmentally friendly, these products also contribute to reducing dependence on fossil fuels.

Pollution of hydrocarbons in marine waters was recorded up to 2003 around 6.44 million tons and dominant due to the results of fishery port activities to cause the balance of coastal ecosystems disrupted. The drained state funds for its handling can reach 1000 USD per ton up to 33,000 USD in each region. Various efforts have been made is still not effective enough. The purpose of this program is to get the appropriate technology design in overcoming the problem of hydrocarbon pollution in the fishing port. The method used by literature and field study and a series of testing tools. The solution is called MABOA (Magic Briquette Oil Absorbent) is a technology that is applied aplikatif appropriate to overcome the problem of oil pollution in the port area. This tool is a net with the main components of magic briquettes, auto-spray containing bacteria degradation and microcontroller which as a whole has the ability to absorb and degrade hydrocarbon compounds. The circular MABOA net will prevent the expansion of the oil spill zone by the absorption process by magic briquettes. Pseudomonas puttidae and Bacillus sp. In auto-spray will be automatically sprayed over the surface of the spill zone to perform the decomposition of hydrocarbon compounds. Bacteria will grow and utilize hydrocarbons that have been absorbed and accumulated in the body of magic briquettes so that the cleaning process becomes more effective and faster. Results from a series of trials showed that MABOA with 3meter diameter dimension able to absorb hydrocarbon compound as much as 35.000mL with 3-5min time absorption rate and with density of colonies of bacteria 3,5x109 able to degrade 32% of existing hydrocarbon compound with efficiency time 3-7 days. The data is an accumulation of those component test result data.

Potensi besar di Desa Sajau Hilir ini terletak pada sektor pertanian, khususnya produksi padi sebagai komoditas unggulan masyarakat setempat. Namun, aktivitas pertanian menghasilkan limbah berupa sekam padi dalam jumlah cukup besar. Mengolah sekam padi menjadi briket memberikan manfaat besar secara ekonomi dan lingkungan. Proses ini menambah nilai pada limbah sekam padi yang sebelumnya tidak termanfaatkan, menciptakan peluang usaha baru bagi masyarakat. Kegiatan sosialisasi ini bertujuan untuk meningkatkan kesadaran dan pengetahuan masyarakat Desa Sajau Hilir tentang manfaat dan potensi sekam padi sebagai bahan baku briket. Kegiatan Pengabdian kepada Masyarakat di Desa Sejau Hilir dengan tema "Pemanfaatan Limbah Sekam Padi sebagai Briket" dilaksanakan melalui metode sosialisasi dan pembekalan materi. Sosialisasi pemanfaatan sekam padi memberikan dampak positif di Desa Sajau Hilir dalam hal pemahaman, kesadaran, dan keterampilan masyarakat. Melalui kegiatan ini, masyarakat yang sebelumnya tidak memiliki pengetahuan tentang potensi pengolahan limbah sekam padi kini memiliki wawasan baru tentang potensi energi alternatif dan manfaat ekonomi. Program ini tidak hanya mendorong penggunaan energi yang lebih berkelanjutan, tetapi juga memberikan peluang untuk menumbuhkan jiwa kewirausahaan warga desa yang dapat berkontribusi pada peningkatan ekonomi desa.

CV Harico is a manufacturing company that produces briquetted charcoal final products. In this research, the company had problems with the quality of charcoal briquettes which did not meet standards, amounting to 12% of the production process, including slanted shapes, holes and cracks. In this research, problem solving is done by combining the Six Sigma and TRIZ methods to get suggestions for improvement. The Six Sigma method is an organized and systematic method, Six Sgma has 5 stages, which can be known as the DMAIC phase. Based on the calculation of the DPMO value and the calculation of the sigma value at the measurement stage, the average DPMO value for October 2023-November 2023 was 27219 with a sigma value of 3.43. Based on the identification results using the Fishbone Diagram method and the FMEA method, the largest defects were found in the slanted shape of the charcoal briquettes, these results were obtained from the factor with the highest RPN value that caused defects. Proposed improvements based on the TRIZ method analysis include providing training, carrying out periodic actions, making maintenance schedules, evaluating work processes, changing tools to reduce the occurrence of defects. The aim of this research is to analyze the problems that occur as well as efforts to control quality and reduce product defects in briquetted charcoal products.

Salah satu sumber mata pencaharian masyarakat di Desa Sibalaya Selatan, Kecamatan Tanambulava, Kabupaten Sigi adalah di bidang pertanian yang ditanami jagung. Setelah melakukan observasi, kami menemukan bahwa di daerah ini banyak menghasilkan limbah hasil pertanian yaitu tongkol jagung. Seperti yang kita ketahui bersama bahwa limbah adalah buangan yang dihasilkan dari suatu proses produksi baik industri maupun domestik. Dan sampai saat ini memang masih menjadi masalah besar dalam masyarakat. Fenomena ini juga yang terjadi pada masyarakat di Desa Sibalaya Selatan.Masyarakat hanya membuang limbah jagung-jagung tersebut, tidak memanfaatkannya sama sekali. Melihat fenomena tersebut kami mencoba menemukan salah satu solusi untuk mengurangi limbah tongkol jagung tersebut dengan menjadikannya suatu produk yang selain bernilai manfaat juga nantinya dapat memiliki nilai komersil. Salah satu caranya adalah dengan memanfaatkan tongkol jagung itu sendiri menjadi bahan bakar dan sumber energy. Metode pelaksaan yang dilakukan dalam kegiatan ini adalah (1) observasi, (2) demonstrasi, dan (3) praktek langsung oleh masyarakat. Pemanfaatan limbah tongkol ini tujuan yang ingin dicapai adalah salah satunya mengurangi pencemaran limbah tongkol jagung, karena banyaknya limbah tongkol yang tidak di manfaatkan dengan baik sehingga kami berpikir soal tongkol jagung tersebut diubah menjadi produk yang bernilai yaitu termasuk suatu teknologi alternatif sebagai pengganti bahan bakar minyak yaitu briket, sekaligus membuka peluang usaha yang dapat memajukan pendapatan di Desa Sibalaya Selatan.

Lingkungan zero waste adalah lingkungan yang bebas dengan limbah disekitarnya, manakala kita membicarakan lingkungan nyaman, terbersit di benak kita adalah keadaan yang bersih tanpa banyak kotoran yang ada disekitarnya. Lingkungan saat ini banyak sekali kendala yang dihadapi, salah satunya adalah sampah yang menumpuk dan menjadi masalah berkepanjangan. Untuk menjadi lingkungan yang bersih maka kita harus ada keperdulian kita, salah satu cara dengan mengolah limbah menjadi bermanfaat. Tujuan penelitian ini adalah memanfaatkan janjang kosong dijadikan briket, sehingga lingkungan menjadi zero waste, mengetahui kualitas briket yang dibuat dari limbah janjang kosong.Metode eksperimental, yang dipakai dalam pembuatan briket adalah dengan cara penepungan kemudian mencampur dengan lem dan dilakukan pengovenan, selanjutnya untuk mengetahui kualitas briket yang dibuat dari limbah janjang kosong denagn cara uji analisis briket yang meliputi kadar air, kadar abu, lama nyala dan kekuatn tekan. Berdasarkan dari modifikasi metode penambahan janjang kosong yang berbeda beda. Proses awal sampel pertama  dari pembuatan briket adalah melakukan penimbangan bahan baku yaitu janjang kosong, dengan diameter prallon 2 inchi, dibutuhkan janjang kosong sebanyak 30, 40, 50, 60, 70 gr dan lem sebanyak 15 gr, dalam pencampurannya tidak menggunakan air. Setelah semua bahan sudah siap, kemudian dilakukan pengadukan secara rata, dan pengovenan pada suhu 60˚C, selama 6 Jam. Test uji yang dilaksanakan adalah kuat tekan 3.035 cm, lama nyala 2.8 menit, kadar air rata-rata 8.43 %, kadar abu rata-rata 24.2 %. Kesimpulan pada penelitian ini adalah test uji pada kadar abu terlalu tinggi sehingga perlu inovasi dalam pengeringan bahan baku.

Briquettes are alternative energy that can be used as substitutes of petroleum and gas. Coal briquettes generally have a slowignition time. Therefore, this study modifies coal briquettes by adding a  blazingstimulant of palm frond fiber and potassium chlorate. The objectives to be achieved in this study  wereto find out the effect of pressure variations modificationsof coal briquettes to the ignition time. In this study, the briquetting process was done by varying pressure of 200 Psi, 300 Psi, 400 Psi, 500 psi and 600 Psi. Coal briquette powder particle size used in this study was 80-100 mesh while the particle size of oil palm frond fibers used were 40-50 mesh. The results showed that the fastest ignition time obtained at a pressure of 200 Psi with ignition time 132 seconds. In conclusion, the pressure variations  on coal briquettes modifications infunced ignition time.