The application of carbonization or carbonization model technology to reactor equipment uses a closed method. The purpose of using a closed system is to produce high quality carbon which is shiny black in nature and breaks easily when pressed with the thumb. This technological method is very practical for the community to apply both in the manufacture of reactors and the carbonization process to the manufacture of charcoal briquettes. The reactor can be made from used compressor cylinders or 12 kg gas cylinders. The material is then modified into a reactor device where combustion is carried out in the reactor tube. In the process of carbonizing biomass, neither agricultural nor industrial waste needs to wait until it turns into carbon, in this case black granules. In this training, participants were first provided with theory and explanations about the use of reactor tubes starting from the manufacturing process to carbon production. In making briquettes, several stages are carried out, including drying, waste sorting, carbonization, mixing with adhesive to printing with a briquette size of 3.18 cm and drying using an oven or sun. so that participants can practice at home. This training can provide skills to the participants, as well as open the mindset of how to use the waste around it to be used as a solid alternative fuel. It can also be used as a home industry business so that it can improve the household economy.

Industrial merbau wood sawn waste has not been utilized as an alternative fuel. The increase in fuel prices is a policy dilemma for the government and currently subsidies have been abolished, because most of them only benefit the upper class and industry. The problems faced by both rural and urban communities are due to the expensive and unaffordable price of fuel, delays in supply which result in scarcity and long queues to get fuel. Sawn waste is a problem for the PT industry. Global Mandiri, which has not been used or managed, causing environmental pollution. With these conditions the author was moved to raise the problem through thought, by utilizing sawn timber industrial waste as an energy source around community settlements which is quite abundant as an alternative energy source. The purpose of this study was to obtain the quality of charcoal briquettes from sawdust of merbau wood as an alternative fuel. The research method used was an experimental method with 3 treatments, namely 5%, 4%, and 3% adhesives with a loading of 2000 lbm, 2500 lbm, 3000 lbm. The results of this study indicated that the density values ​​of charcoal briquettes were 0.714 and 0.789 gr/m3 at a concentration of 5% adhesive. At 4% adhesive concentration, the density values ​​were 0.771 gr/m3 and 1.054 gr/m3. For an adhesive concentration of 3%, the briquette density values ​​were obtained at 1.046 gr/m3 and 1.121 kg/m3. Of the three treatments, it is not close to the standard SN density value. Likewise, the water content obtained was 11.26%, which was not included in the SN. For the highest ash content, 8.3% is included in the SN standard. The results of the briquettes burning test showed that there was no smoke, no cracks, and did not quickly produce high ash and coal. The weight of the tested briquettes was 36.31 grams and it took 1.16'52 "hours to burn them to ashes. So that this research can be used as a suggestion in the manufacture of charcoal briquettes

The occurrence of flash floods in Sentani claimed many victims, some suffered minor and serious injuries that could not be counted, as well as many people's houses that were washed away and damaged so that the community was placed in refugee camps prepared by the government. To deal with the people affected by the flash floods that occurred in Sentani, the government could not reach out to the entirety to evacuate the evacuation sites that had been prepared. Some of the refugee campsprepared by the government do not have facilities for the community's necessities of life, namely MCK. Through this service, we are moving to conduct a field survey to see which locations can be helped to cope with life in refugee camps. The purpose of this service is to help small asey communities living in refugee camps who do not have MCK, so we encourage final semester Planology students to do KKN in that place to build environmentally friendly MCK. The materials used to build MCK houses are light steel, the process is easy to do. simple and practical. In this service, we provide training to students and the community how to cut canal C or mild steel using a hand grinder. Likewise in the assembly of bolts to the frame using a hand drill for both installation and removal if there is an error. This training is easily accepted and carried out by KKN students and the community, so that the making of MCK can be completed properly and used by the community of Kampung Asei Kecil Telaga Maya. In this service, together with KKN students, it really helps the government to overcome the lives of the people in refugee campus. Keywords: Mild steel; environmentally friendly MCK; Sentani