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Mojorejo Village has the potential to develop oyster mushroom cultivation. However, with increasing production, mushroom baglog waste also increases and often becomes an environmental problem. Local residents lack the knowledge to utilize this waste optimally. To this end, outreach and training were conducted on making charcoal briquettes from mushroom baglog waste. This processing process allows baglog waste to be converted into a value-added product, namely charcoal briquettes. In addition to providing an effective waste management solution, this training also opens up new business opportunities for the community. The approach used in this activity is the ABCD (Asset Based Community Development) method, which focuses on empowering local potential. The results of the outreach showed that the resulting charcoal briquettes have good combustion quality and have the potential to be an environmentally friendly fuel. It is hoped that this training will reduce the accumulation of baglog waste and provide economic and environmental benefits for the residents of Mojorejo Village.

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.

This community service activity aims to optimize the utilization of woodcraft waste and broken tiles in Tamansari Village through training in briquette charcoal production and effective marketing strategies. The wood waste, which has not been optimally utilized and has become an environmental issue, is expected to be processed into high-economic-value products. The conversion of waste into briquette charcoal is expected to reduce pollution while opening up new environmentally-friendly business opportunities. The implementation method includes socialization on the potential and benefits of briquette charcoal, technical training covering material preparation, carbonization process, mixing, molding, and drying, as well as assistance with marketing strategies both offline and digitally. Participants include local residents, small business owners, and craftsmen. The expected outcomes are an increase in the community's skills in processing waste into marketable products, the growth of new businesses based on alternative energy, and increased awareness of environmentally-friendly waste management. This program is expected to make Tamansari Village a model for creative, independent, and environmentally-conscious villages with strong competitiveness in the local economy.

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.

The majority of people in Balongsari Village, Megaluh District, Jombang Regency work as farmers. The rice harvest every harvest period produces very abundant agricultural waste. One of these agricultural wastes is rice husks. A common habit of farmers in this area is burning rice husks. This has an impact on environmental pollution, which comes from the smoke from burning rice husks. The purpose of this activity is to provide a solution for managing rice husk waste so that it is more useful. Proper processing of agricultural waste, namely rice husks, will produce various processed products, namely alternative fuel sources to replace kerosene or LPG gas or firewood. The objects of community service activities are youth of Karang Taruna and farmer groups. The results of this service activity are (1) Obtaining alternatives to replace fuel oil, (2) Reducing rice husk waste, (3) Providing added value to rice husks so that they become more useful. During the activity, participants were very enthusiastic about participating in the event from beginning to end, as evidenced by the results of the questionnaire after the activity, namely 90% of participants were very enthusiastic.

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.

This study aims to determine the process of making oil palm empty fruit bunch briquettes through variations in tapioca flour as an alternative material, through the stages of research which include briquette making, namely drying, carbonization and printing. Briquette characterization includes proximate tests, namely water content, ash content, calorific value and densit. From the results of the proximate test at a ratio of 91:9, it shows that the quality of oil palm empty  fruit bunch biochar briquettes with a moisture content of 7.07%, ash content of 8.769%, calorific value of 5850.2 cal/g and density of 0.55 g/cm3. The utilization of oil palm empty fruit bunches not only reduces waste, but also provides a solution for sustainable energy needs.

This research optimises the production of quality charcoal briquettes using the Multi Factor Evaluation Process (MFEP) method to meet the need for sustainable alternative energy. The main raw material is coconut shells, which are cleaned, burned in iron drums, and sun-dried to produce quality charcoal. Quality evaluation was conducted on calorific value, moisture content, ash content, and compressive resistance. Findings showed significant improvement in the quality of briquetted charcoal after the application of MFEP, with higher calorific value, lower moisture and ash content, and better compressive resistance. This research supports energy efficiency, reduces emissions, and improves environmental sustainability and community welfare.

The problem of organic waste, especially dry leaves, is one of the environmental challenges that has not been optimally resolved in Indonesia. Kaliwungu Village, Jombang District, is one of the areas that has high potential for dry leaf waste, but has not been utilized economically. Most of this waste is simply burned, causing air pollution and carbon emissions. This community service program aims to empower environmental cadres and PKK cadres through training in making briquettes from dry leaves, which not only provides environmental solutions but also opens up business opportunities based on social entrepreneurship. The training was carried out for three days involving 30 participants. Activities included socialization, technical training, business simulations, and evaluation of results. The results showed a significant increase in participant understanding, with an average pretest score of 40% increasing to 85% in the posttest. As an output, participants succeeded in producing 300 briquettes that met alternative fuel quality standards. In addition, most participants expressed their readiness to start a briquette business independently or in groups. This program has a positive impact on social, economic, and environmental aspects, in line with the principles of sustainable development and the Sustainable Development Goals (SDGs) agenda, especially point 8 (Decent Work and Economic Growth) and point 12 (Responsible Consumption and Production). With continued assistance and collaboration with strategic partners, it is hoped that this program will be able to create a sustainable small business ecosystem based on the environment and provide wider benefits for the people of Kaliwungu Village.

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.

Kuliah Kerja Nyata (KKN) or Community Service Program is a student engagement initiative designed to apply academic knowledge and skills in real-world contexts. The KKN program in Lampuyang Village, Teluk Sampit District, Central Kalimantan, conducted from July 15 to August 29, 2024, focused on converting coconut shell waste into charcoal briquettes. Lampuyang Village possesses significant potential in coconut plantation, but the waste from coconut, such as shells and husks, is often underutilized. This KKN aimed to provide a solution by training the village’s youth in making charcoal briquettes, thereby enhancing their skills and creating new, environmentally friendly business opportunities. Through a Participatory Action Research (PAR) approach, the program actively involved the community at every stage, from observation, planning, implementation, to evaluation. As a result, the program raised awareness about the economic potential of coconut waste, reduced environmental impacts from open burning, and encouraged the youth to engage in local economic development. This initiative is expected to offer long-term benefits to Lampuyang Village’s community and strengthen the role of students as agents of social change.

Agricultural waste, when managed properly, is not merely production residue but also holds significant economic potential. Margomulyo Village, as a major corn-producing center, has abundant corn waste. To address the waste problem and simultaneously boost the village's economy, the production of corn briquettes is an attractive alternative. Corn briquettes, as a biomass-based alternative fuel, are rich in carbon content and can be utilized as a clean energy source.

The PKK Women's Group in Sambirejo Village, Wonosalam District, Jombang Regency has the potential to produce briquettes from durian peel waste. This is supported by the large amount of waste waste that is wasted. The use of durian peel waste in Sambirejo Village has never been done before. The empowerment activity of the PKK Women's Group in Sambirejo Village aims to provide information, training and assistance regarding how to use durian peel waste into products that have a selling value and can reduce environmental waste. This activity received a positive response from the PKK Women's Movement and Village Apparatus in Sambirejo. From the results of this empowerment activity, the Sambirejo Village PKK Women's Group was able to process and utilize durian peel waste into a product that has a selling value.

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.

The use of biomass as a renewable source for the development of bioenergy and biomaterials can also address the increasing needs of the community. Biomass is a more environmentally friendly alternative to oil and coal, which can replace non-renewable fuels. Biomass raw material with a high calorific value, is usually used as a mixing base or the main raw material in the manufacture of biobriquettes. The characteristics of briquettes made from coconut shell charcoal with starch adhesive are varied in dimensions and particle size of the charcoal. One of the adhesives that can be used to glue charcoal particles together to get compact briquettes is starch. This study aims to determine the effect of variations in the dimensions of charcoal and particle size used on the characteristics of briquettes made from coconut shell with starch adhesive. The method used was an experiment with Completely Randomized Design (CRD) testing three repetitions. The independent variables in this study were dimensional variations, namely cubes and pyramids, as well as variations in particle size using mesh 60, 80, and 100. The dependent variables in this study were the values of moisture content, ash content, destruction index, and heating value. From the results of testing a completely randomized design using ANOVA, it was found that the dimensions of the briquettes affected the ash content and flammability of the briquettes, while the particle size affected the moisture content, ash content, and flammability of the briquettes. Both dimensions and particle size have no effect on the briquette destruction index    

This study aims to formulate the Application of Reverse Engineering And Redesign Method in making briquettes from corn cobs in South Sibalaya Village. Based on the results of this study, it shows that briquettes are alternative energy materials that are solid in form containing carbon, have a high calorific value. One of the advantages in developing corn cob briquette products is that it can increase sales by improving existing products or redesigning products, and minimizing shortcomings in order to meet needs, attract attention, and consumer satisfaction.  Meanwhile, from the external factor analysis, namely, the development of corn cob briquette products is one of the strategies, in order to maintain or increase its market demand.

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.