Candlenut shell is an organic waste that has a hard texture and has a high carbon element. The amount of candlenut shell produced from each processing of candlenut seeds is very large but has not been optimally utilized. For this reason, an effort is needed to utilize candlenut shells so that they do not become waste. In the manufacture of hazelnut shell briquettes, hazelnut shells are carbonized at 500 °, sifted with mesh 30 and 100 sieves, given a compressive load of 3 kg, 4 kg, 5 kg and 5.5 kg, the adhesive on hazelnut shell briquettes is starch and drying is carried out with a drying oven for 3 hours at a temperature of 80 °. The purpose of this study was to determine the effect of variations in pressure and particle size on the quality of hazelnut shell briquettes when viewed from the combustion rate and calorific value. The methodology used in this research is experimentation on hazelnut shell briquettes, testing hazelnut shell briquettes including testing water content, testing ash content, burning rate and calorific value of briquettes. From the results of the research on hazelnut shell briquettes with variations in pressure and mesh, the highest calorific value in hazelnut shell raw material briquettes is in the 5.5 Kg pressure specimen on mesh 30, namely 9855.18 Cal/gram and the bomb calorimeter test results are 7008.03 Cal/gram with an error rate of 24.40%, the higher the pressure will produce a higher calorific value as well. The highest combustion rate value is in hazelnut shell briquettes at a pressure specimen of 3 Kg mesh 100 with a value of 1.2 grams/minute the smaller the particle size, the higher or faster the combustion rate.

Briquettes are a type of alternative energy whose raw material source comes from agricultural waste such as coconut shells. Coconut shells are converted into charcoal which has a higher calorific value through the pyrolysis process. The aim of this research is to determine the effect of comparing particle size and printing pressure on the length of burning time and burning temperature, so as to obtain a briquette composition that is durable and produces high temperatures. In this research, the raw material used was shell waste with a drying process of 400°C and the particle size variations used were mesh 30, 150 and 250 mixed with 12 grams of starch adhesive. The briquette molding process uses 3 kg and 5 kg pressure, which are then dried using an oven at a temperature of 750°C for 3 hours. Tests were carried out on burning time, burning temperature, water content and ash content. From the research results, it was found that for the highest temperature, briquettes with a particle size of 250 mesh were produced with a pressure of 5 kg at 312°C, and the flame duration of the briquettes was 240 minutes.

The current fuel is still sourced from fossil fuels, namely oil, coal and The current fuel is still sourced from fossil fuels, namely oil, coal and gas, which have many impacts on the environment. As an agricultural country located in the tropics, Indonesia is rich in biomass energy sources. In this research, the use of candlenut shells will be used or processed into alternative fuel, namely briquettes, with the aim of determining the value of combustion time and temperature produced through variations in composition and mesh size. The results of the research show that the effect of the burning temperature has an impact on the burning time of the briquettes and the resulting temperature, where the best burning time and temperature values ??of the briquettes are produced by a burning temperature of 400°C with a grain size of 100 mesh, namely 177 minutes with an average burning temperature briquettes 193.9°C.

AbstrakProsentase sampah plastik di Indonesia menduduki peringkat kedua, setelah sampah organic, yaitu14% dari total. Indonesia termasuk salah satu dari 8 negara terbesar kontributor sampah plastik di laut.Berdasarkan data tersebut, pemerintah berusaha mengurangi limbah plastik melalui berbagai cara, sehingga perludilakukan pemilahan sampah plastik mulai dari sumbernya (rumah tangga). Pemahaman kesadaran memilahsampah plastik dapat dilakukan melalui edukasi, salah satunya kegiatan edukasi terhadap siswa SD, SLB danSMP di Kabupaten Pasuruan. Kegiatan ini dilaksanakan dalam rangka memperingati World Environment Daydengan tema Beat Plastic Pollution. Kegiatan dilakukan dengan penayangan video singkat dampak sampahplastik terhadap biota laut; lomba mewarna tote bag sesuai tema; dan lomba memilah sampah organik, anorganikdan B3. Dari hasil penayangan video, terdapat 57,1% peserta SD memahami isi pesan dalam video tersebut, dan75% peserta SLB dan SMP yang memahami. Seluruh peserta paham untuk memilah sampah organic darisampah lain. Sedangkan dalam memilah sampah anorganik, 50% peserta SD bisa memilah dengan benar;sementara peserta SLB dan SMP hanya 25% bisa memilah dengan benar. Pemahaman memilah limbah B3, 100% peserta SMP,75% peserta SD dan 50% peserta SLB bisa memilah, meski masih ada kesalahan.Kata kunci : edukasi, pemilahan, sampah plastikAbstractThe percentage of plastic waste in Indonesia ranks second after organic waste, constituting 14% of the total.Indonesia is among the eight largest contributors of plastic waste in the oceans. The government has beenmaking efforts to reduce plastic waste through various means, emphasizing the need for plastic wastesegregation at its sources (households). Awareness and understanding of plastic waste segregation can beachieved through education, including educational activities for elementary, special needs, and junior highschool students in Pasuruan Regency. These activities are conducted in commemoration of World EnvironmentDay with the theme "Beat Plastic Pollution." The activities include the screening of a short video illustrating theimpact of plastic waste on marine life, tote bag colouring competition, and waste segregation competition fororganic, inorganic, and hazardous waste. From the video screening, 57.1% of elementary school participantsunderstood the message, while 75% of special needs and junior high school participants understood it. Allparticipants understood how to segregate organic waste from other waste types. However, when it came tosegregating inorganic waste, only 50% of elementary school participants could do so correctly, while only 25%of special needs and junior high school participants could do it. For segregation of hazardous waste, 100% ofjunior high school participants, 75% of elementary school participants, and 50% of special needs participantscould do it, with some errors.Keywords: education, segregation, plastic waste.

AbstrakProsentase sampah plastik di Indonesia menduduki peringkat kedua, setelah sampah organic, yaitu14% dari total. Indonesia termasuk salah satu dari 8 negara terbesar kontributor sampah plastik di laut.Berdasarkan data tersebut, pemerintah berusaha mengurangi limbah plastik melalui berbagai cara, sehingga perludilakukan pemilahan sampah plastik mulai dari sumbernya (rumah tangga). Pemahaman kesadaran memilahsampah plastik dapat dilakukan melalui edukasi, salah satunya kegiatan edukasi terhadap siswa SD, SLB danSMP di Kabupaten Pasuruan. Kegiatan ini dilaksanakan dalam rangka memperingati World Environment Daydengan tema Beat Plastic Pollution. Kegiatan dilakukan dengan penayangan video singkat dampak sampahplastik terhadap biota laut; lomba mewarna tote bag sesuai tema; dan lomba memilah sampah organik, anorganikdan B3. Dari hasil penayangan video, terdapat 57,1% peserta SD memahami isi pesan dalam video tersebut, dan75% peserta SLB dan SMP yang memahami. Seluruh peserta paham untuk memilah sampah organic darisampah lain. Sedangkan dalam memilah sampah anorganik, 50% peserta SD bisa memilah dengan benar;sementara peserta SLB dan SMP hanya 25% bisa memilah dengan benar. Pemahaman memilah limbah B3, 100% peserta SMP,75% peserta SD dan 50% peserta SLB bisa memilah, meski masih ada kesalahan.Kata kunci : edukasi, pemilahan, sampah plastikAbstractThe percentage of plastic waste in Indonesia ranks second after organic waste, constituting 14% of the total.Indonesia is among the eight largest contributors of plastic waste in the oceans. The government has beenmaking efforts to reduce plastic waste through various means, emphasizing the need for plastic wastesegregation at its sources (households). Awareness and understanding of plastic waste segregation can beachieved through education, including educational activities for elementary, special needs, and junior highschool students in Pasuruan Regency. These activities are conducted in commemoration of World EnvironmentDay with the theme "Beat Plastic Pollution." The activities include the screening of a short video illustrating theimpact of plastic waste on marine life, tote bag colouring competition, and waste segregation competition fororganic, inorganic, and hazardous waste. From the video screening, 57.1% of elementary school participantsunderstood the message, while 75% of special needs and junior high school participants understood it. Allparticipants understood how to segregate organic waste from other waste types. However, when it came tosegregating inorganic waste, only 50% of elementary school participants could do so correctly, while only 25%of special needs and junior high school participants could do it. For segregation of hazardous waste, 100% ofjunior high school participants, 75% of elementary school participants, and 50% of special needs participantscould do it, with some errors.Keywords: education, segregation, plastic waste.