Fossil fuel sources are non-renewable energy sources and someday will experience scarcity due to the increasing population; it is necessary to look for alternative fuels. Several renewable energies that can replace fossil fuels are water, solar energy, wind, thermal energy, and biomass energy. One biomass energy from plantations is biomass from oil palm plantation waste. Riau Province is Indonesia's largest palm oil producer, with a total land area of 2.89 million until 2021. The results of harvesting coconuts will produce waste, i.e., oil palm shells. Oil palm shells can be treated with pyrolysis technology. In the pyrolysis process, three products are produced: liquid, solid (biochar), and oil products (bio-oil). In this study, the pyrolysis product of oil palm shell waste in the form of biochar was used as raw material to produce bio-briquettes. Producing bio-briquettes resulted from pulverized biochar pyrolysis, mixed with tapioca flour adhesive with a percentage of 4% and 8%. Then, the biochar mixture with adhesive was put in a mold and compressed. The results of the bio-briquettes were tested for water content, ash content, volatile matter content, and calorific value. The test results were compared with the Indonesian National Standard (SNI) 8021 2014. The research results on bio briquettes from the pyrolysis of palm oil shell waste showed the best results at 4% reactant content with 4.45% water content, 5.1% ash content, volatile matter content 40.40%, and the calorific value was 5,999.93 cal/gram.
Bukit Permata Sumbari II has a dry environment and Podsolik Merah Kuning soil type so that the people really need to improve the environmental conditions around the housing through tree planting activities. The problem of partners is the difficulty in getting tree seedlings, planting equipment to fertilizer. Team provided a solution by providing counseling the technical and maintenance of trees, also facilitated tree planting activities so that the residential environment was balanced. The activities carried out were counseling on tree planting and maintenance techniques, procurement of facilities and infrastructure in the form of 60 seedlings and planting equipment, field assistance to evaluation by percent growth, giving questionnaires before and after activities. Based on the results of the statistical tests was concluded that there was a significant difference in the ability of partners to increase due to counseling. The practice of planting 100% managed to grow well.
Lancang Kuning University Campus (UNILAK) is one of the campuses that has a fairly wide area and has enormous potential, especially related to the use of space whose potential has not been maximally utilized to support the Tridharma activities of higher education. The lack of land use is due to a more detailed inventory of land cover types that have not yet been carried out so that data and information related to existing land cover types are still very minimal. So it is necessary to identify the type of land cover and land cover characteristics at the Unilak Campus, to obtain information and data for further use. Land cover is the mention of biophysical appearance on the surface of the earth consisting of areas of vegetation, open land, built up land, water bodies and wetlands. One of the activities carried out for land cover data collection is land cover inventory activity using applications in the senses and GIS to collect data on land cover types in the study area coverage. Information on the types of land cover can be obtained from land cover data inventory activities through ground check activities or data collection on land cover conditions in the field.
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