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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.

Increasing consumer demand, including in the fashion sector, is directly proportional to the waste generated. Unconsciously, the fashion industry is one of the contributors to global pollution. One of the contributions is with a sustainable fashion. Awareness of environmental sustainability encourages environmentally friendly clothing styles become more popular. Designers are competing to make design collections with sustainable materials, It is the ecoprint fabric motif. Ecoprint means the technique of making motifs on cloth by tracing the leaves and then boiling them. Almost 100% of ecoprint fabrics are made using natural materials that are biodegradable. Creating fabrics with ecoprint motifs requires fabric materials derived from natural fibers, both plant and animal fiber. The dyes used come from nature, including from stems, leaves, flowers, fruit skins which when boiled are able to produce the same colors as chemical substances. The motif from leaves that produce natural colors, arranged in such a way is created kind of motif formation. Experimental methods of various in arranging leaves and flowers will produce unique different styles of motifs. Ecoprint as an alternative to sustainable Indonesian ‘Wastra’ expected will become more popular because of the uniqueness of the motifs, sustainable and the high selling price.

Mercury (Hg) is a metal that is commonly found in water and has toxic properties, so it is very dangerous for human health and the environment. Mercury in the environment can come from gold mining activities such as in Pesanggaran Village, Banyuwangi. Based on information from the surrounding community, the waste disposal flowed into the river and it was feared to affect the quality of river water in this area. This study aimed to analyze the mercury level in the river water using the UV-Visible Spectrophotometer method, where river water samples were taken from the upstream, middle, and downstream parts. Determination of mercury levels was carried out at the STIKES Banyuwangi Laboratory. The results showed that the Hg content in the river water around the gold mining area of Pesanggaran Village, Banyuwangi ranged from 0.031 to 0.033 mg/L. The Hg level of river water in this area was above the threshold and it was not recommended to use as drinking, bathing, cooking or washing. However, it is necessary to analyze Hg levels using other methods, such as the AAS (Atomic Absorption Spectroscopy) method which is more expensive but more accurate results will be obtained.

Unclean environmental conditions and unhealthy behavior are the causes of the problem of the emergence of infectious diseases. One example of poor clean, healthy living behavior is the lack of awareness in disposing of waste in its place and improper ways of managing household waste. Almost all areas are experiencing difficulties obtaining land as a final disposal site. The government cannot solve the problem of household waste alone. Sentong Village does not correctly manage waste; for example, all waste is burned, and there is no separation between organic and inorganic waste. The purpose of this community service is to increase public awareness by increasing general knowledge about proper waste management and empowering the community to manage waste with the Reduce, Reuse, and Recycle method as one of the appropriate methods in processing household waste. The results of community service activities show that the community is quite enthusiastic when given information about proper waste management; the methods used in these activities are the lecture and discussion methods, then pre-test and post-test are carried out; the community who attended the training were 15 people, and residents agreed to apply the right way of processing waste, starting with the correct way of disposing of waste, namely distinguishing between organic and inorganic waste, so as not to litter in front of the house.

Technology developments in the era of the industrial revolution 4.0 provide many opportunities to improve supply chain performance and performance. The existence of the waste processing industry as a business has prospects for development, given the large amount of waste generated by the community and the need for several processed products. PT A reduced the amount of garbage that accumulates in the final disposal site (TPA) by reprocessing the waste produced by the community. The existence of waste banks, government agencies, hotels, zoos, and Islamic boarding schools is one of the sources of waste that is processed for waste products. This paper seeks to develop the concept of a digital supply chain by adopting the supply chain model run by PT A. The initial identification presented in this paper can result in several technology identifications that need to be prioritized in implementing relevant technologies in the industry. The expected impact of this implementation is an increase in supply chain performance

The service focuses on training on processing glass waste as the main ingredient in making mosaic works, themed on folklore. Aims to provide knowledge about the potential of glass waste, and the technical practice of processing it to become a mosaic work. The training participants were a group of young people from Noloro, located in Sawit, Panggungharjo, Bantul DIY. The method used in the implementation is ADDIE, which stands for the stages of the process itself, namely Analysis, Design, Develop, Implement, and Evaluate. The result of the training is a mosaic work from glass waste, taking the theme of one of the folk tales from Bantul Regency, namely about the Krapyak Stage as well because it is a very iconic building.

Children with disabilities are part of diversity, but there are problems such as the lack of character formation of children, not yet optimal in developing the potential and limited skills and independence of children with disabilities. So the PKM-PM team at Slamet Riyadi University Surakarta provided a mentoring activity through the application of the aquaponics system in order to empower children with disabilities in improving the life skills of children with disabilities at YPAC Professor Doctor Soeharso Surakarta. The methods applied in this service include: (1) providing counseling and socialization related to the aquaponics system, (2) aquaponics assembly, (3) training related to aquaponics seeding and care, and (4) monitoring the development of aquaponics. The result of this service is that children with disabilities who become participants during the service process have gained knowledge related to the aquaponics system. Children routinely carry out maintenance such as spraying hydroponic vegetables, feeding catfish to cleaning fish waste at the bottom of the pond. Assistance is carried out to train the independence and responsibility of children with disabilities in aquaponic care as well as become vocational skills for them which if aquaponics continues to be developed it will become a source of income for children with disabilities, especially those living in dormitories. This service has achieved the expected results and the sustainability of this program continues to be carried out with a monitoring pattern. Keywords: Aquaponics, Empowerment, Children with Disabilities, Life Skills

Garbage is the rest of the goods that are not used in human daily life. In this day and age, waste is a scourge of endless problems in everyday life, most people do not know how to recycle the waste, one of which is the people of Sei Rotan Village, Percut Sei Tuan District, Deli Serdang Regency, North Sumatra. Sei Rotan Village has fertile soil so that the people there, especially mothers, take advantage of the fertile land to channel their hobbies by planting various types of flowers and will place them in the yard of the house, but the Sei Rattan Village women share their hobby of planting flowers with buy the pot even though with the garbage it can produce a beautiful pot. With that we held an activity of making flower pots with used cloth as a planting medium which aims to reduce waste and create creative things such as flower pots from used cloth as a planting medium.The activity of making flower pots from used materials as planting media uses stages as a process to create the flower pot work. In this activity we target the community, especially women in Sei Rotan Village. The waste by creating good works is more than just a pot product such as bags, chairs, etc., and also the people of Sei Rotan Village increase their turnover by selling pots with recycled materials and reducing spending on buying flower pots.

This study aims to utilize rice washing wastewater as a potential raw material for bioethanol production using enzymatic hydrolysis and fermentation methods. The wastewater is treated with amylase enzyme to break down starch into simple sugars, which are then fermented using yeast to produce ethanol. The research involves optimizing process conditions such as temperature, pH, enzyme concentration, and fermentation time. The results indicate that rice washing wastewater has the potential to be an efficient raw material for bioethanol production. Thus, this study contributes to the development of renewable energy sources and the utilization of agricultural waste to create a more sustainable economic cycle.  

Based on the experimental study about corncob conducted before, this village has managed to create a new breakthrough production of processed foods such as corn chips since 2003. The foods that use raw materials of corn is the only one in Probolinggo. Corn chips production as small industries is run by 7 women farmers starting in 2008. (Wahmuda, 2013). The problem of this industrial activity is unbalancing the marketing area with market demand that obstruct continues to increase. This causes decrease on the productivity of the industry. In addition corncob waste left over from a small industrial activities corn chips squashed every day as much as 60 kg. This would be a major obstacle when marketing targets to reach market demand. As a result of waste corn cobs will be more numerous and uncontrolled, even less the corn cob waste is only used as cooking fuel. This research includes experiments on corn cobs process is divided into several stages, namely the process of forming, heating, curing, mixing and merging material, as well as coloring. From the research-based experiments, it turns out corn cobs to have a variety of characteristics. The uniqueness and characteristics process of corncobs, can give some variant forms such as cubes, cylinders, triangles, and a chopped form. Of these forms can be created several patterns of merger between a very interesting form to be used as a hanging lamp shade products. In the manufacture of a hanging lampshade required supporting materials such as iron chandelier hook pipe diameter of 16 mm and an iron plate with a thickness of 3 mm. Innovation alternative these products will continue at the stage of the development process of product design by using corn cobs as raw material products with the hope to utilize more leverage on how to process forms such a way into a useful product in terms of people's needs, aesthetic value and become friendly products environment.

Public service advertisement is an extension or socialization made to provide information or education to the public about something that is beneficial to the community, both financially and non-financially. Planting media is a container or place to grow plants, both flowers, fruits and vegetables. Used goods are items that are no longer used, such as drink bottles, broken buckets and others, used goods are often considered as household waste that will be just thrown away. This public service advertisement is designed to educate the public to be able or willing to manage household waste produced into new goods that have artistic value and selling value.

Kebutuhan akan konsumsi energi listrik sangat tinggi dan semua aktivitas manusia banyak yang menggunakan energi listrik. Listrik juga sangat dibutuhkan pada industri, karna seluruh alat hampir semua menggunakan listrik. Karna penggunaan listrik sangat besar pada PT. Cemindo Gemilang membangun unit WHRS (Waste Heats Recovery System) untuk menyuplai listrik. Dalam penelitian ini bertujuan untuk mengetahui bagaimana prinsip kerja serta proses kerja pada WHRS. Metode yang digunakan yaitu dengan observasi dan wawancara untuk mengetahui bagaimana proses pada WHRS tersebut. Hasil kesimpulan yaitu Waste Heats Recovery System ini merupakan pembangkit listrik yang menggunakan sisa panas atau flue gas sebagai pengganti batu bara untuk memanaskan air pada boiler.  

This study aims to obtain data on the impact of noise pollution by conducting a noise test from the operation of the PLTD and modeling it to get the noise impact hue. Finite element software modeling the impact of noise generated from the operation of PLTD to determine the hue of the noise impact. LISA, a popular finite element analysis application, was used to estimate and complete this study using the finite element model. Noise data retrieval, some data is carried out according to the engine power load during production and the machine stops with a certain distance reference to the affected area, namely residential areas, with a zone radius of up to 100 m from the machine point. The condition of the impact of noise exposure that occurs, where in general the area that has a major impact on settlements is a linear area of openings at the noise source because noise waste is free to come out of building openings without any obstacles. , so that the nominal sound impact that occurs without these obstacles, the average noise value is above the 70 dB.A threshold with the category of very disturbing.

Garbage is a problem that has become a global environmental issue. Problems that arise in each region can vary, whether it is about the accumulation of organic or non-organic waste. One solution to this waste problem is the existence of waste processing activities. Waste processing is part of waste management by reducing the amount of waste, in addition to utilizing the values contained in the waste itself (recycled materials, other products, and energy). Waste management is crucial and important at this time, given the large volume of waste generated in each region and needs to be handled to keep the environment clean and nice. The waste problem in Semarang Regency, especially in the Demak District, is the chosen place in this study. Through the study of literature, followed by the related waste in each village in the exploration, by the development of solutions for each problem. Organic waste that can be processed into organic fertilizer, non-organic waste, especially plastic can be a advantogous material to produce paving blocks. The results of this research are also compiled in the form of an educative and interesting ebook to inspire the community and encourage positive activities for the community.

Based on the experimental study about corncob conducted before, this village has managed to create a new breakthrough production of processed foods such as corn chips since 2003. The foods that use raw materials of corn is the only one in Probolinggo. Corn chips production as small industries is run by 7 women farmers starting in 2008. (Wahmuda, 2013). The problem of this industrial activity is unbalancing the marketing area with market demand that obstruct continues to increase. This causes decrease on the productivity of the industry. In addition corncob waste left over from a small industrial activities corn chips squashed every day as much as 60 kg. This would be a major obstacle when marketing targets to reach market demand. As a result of waste corn cobs will be more numerous and uncontrolled, even less the corn cob waste is only used as cooking fuel. This research includes experiments on corn cobs process is divided into several stages, namely the process of forming, heating, curing, mixing and merging material, as well as coloring. From the research-based experiments, it turns out corn cobs to have a variety of characteristics. The uniqueness and characteristics process of corncobs, can give some variant forms such as cubes, cylinders, triangles, and a chopped form. Of these forms can be created several patterns of merger between a very interesting form to be used as a hanging lamp shade products. In the manufacture of a hanging lampshade required supporting materials such as iron chandelier hook pipe diameter of 16 mm and an iron plate with a thickness of 3 mm. Innovation alternative these products will continue at the stage of the development process of product design by using corn cobs as raw material products with the hope to utilize more leverage on how to process forms such a way into a useful product in terms of people's needs, aesthetic value and become friendly products environment.    

Fenomena food waste di Indonesia mencapai 300 kg sampah makanan per orang setiap tahun, sehingga menempatkan Indonesia pada posisi peringkat kedua di dunia dalam jumlah food waste kategori besar. Keadaan tersebut  menjadi sangat memprihatinkan, karena akan memicu kontra produktif dimana satu sisi terjadi ketersediaan makanan yang berlebih, sementara di sisi lain masih didapatkan kondisi sebagian masyarakat yang masih kekurangan makanan, sehingga terkesan ada indikasi perilaku yang menyia-nyiakan makanan. Oleh karena itu melalui penelitian ini berdasarkan pendekatan kebijakan yang ada, bagaimana membangun pengelolaan sampah yang baik dan efektif, khususnya sampah makanan dengan cara melakukan perubahan gaya hidup (life style) terhadap makanan yang dikonsumsi secara bijak yang ramah lingkungan namun tidak membebani dengan sampah makanan (food waste) yang berlebihan sebagai dampak dari perilaku hidup konsumtif masyarakat dengan kebiasaan-kebiasaan yang tidak memberikan daya dukung terhadap penguatan ketahanan pangan dan kelestarian lingkungan yang berkelanjutan. Penelitian ini menggunakan pendekatan yuridis normatif (normative legal research), serta dengan mengkaitkan sikap dan perilaku masyarakat terhadap kebiasaan-kebiasaan dalam keseharian. Hasil penelitian menunjukkan adanya kecenderungan inefisiensi pada pola konsumsi dan produksi bahan makanan telah melahirkan timbunan sampah makanan yang mengakibatkan pemborosan sumberdaya dan pencemaran lingkungan.

Dalam pengelohan makanan untuk Teknologi Pangan perlu dan dibutuhkan pewarna alami karena pewarna sintesis sangat berbahaya bagi tubuh kita, maka paling tepat dalam penggunaan pewarna adalah pewarna alami. Makanan yang kita lihat dan kita sering beli dipasaran tradisional dan mall-mall adalah membutuhkan zat pewarna,  tanpa pewarna maka segala jenis makanan maupun minuman tidak akan punya daya tarik bagi konsumen, karena dengan pewarna maka produk akan manaikkan harga jual disamping eksotik dan daya tarik dari makanan tersebut. Buah Naga dari warna kulit kemerahan yang menarik  dan jarang di manfaatkan, biasanya banyak yang dimanfaatkan adalah isi dari buah naga tersebut, sehingga kulitnya menjagadi limbah yang tentu mengganngu lingkungan dan pandangan kita. Lingkungan saat ini banyak sekali kendala yang di hadapi, salah satunya adalah sampah yang menumpuk dan berkepanjangan,  masalah itu menjadi delema dalam kehidupan masyarakat, maupun pemerintah dalam pengelolaannya. Karena dengan jumlah penduduk yang selalu berkembang  maka sampah juga akan semakin banyak dan secara otomatis membutuhkan penangan yang baik pula. Dengan adanya beban lingkungan  yang semakin kedepan semakin rumit ditanggulangi, dan setiap saat semakin menumpuk, maka penulis mengangkat salah satu limbah lingkungan yaitu limbah kulit buah naga, untuk di manfaatkan menjadi zat pewarna  alami makanan. Penelitian yang dilaksanakan menggunakan kulit buahn naga (hylocereus Undatus)yang berwarna merah merona, dengan metode ekstraksi dan hasil ekstraksi di uji laboratorium, dengan pengujian pH, uji sinar, stabilitas zat warna antosianin kulit buah naga. Hasil uji yang diperoleh adalah : pH 6 dan tingkat absorbennya  0.5445, sedangkan uji sinar UV pada hari ke6 menghasilkan 1.5566 nm (nanometer). Jadi kesimpulannya adalah pengguanaan zat warna alami dari limbah kulit buah naga bagus digunakan untuk pewarna alami makanan.  

Most people who want to find a used motorcycle will first seek information about the price of a used motorcycle through the internet or newspapers. This is less effective because it will waste a lot of time and money, especially if you have to look for information on used motorcycles one by one but the results are not in accordance with your wishes and needs. To facilitate the search for used motorcycles, the WASPAS method is used. Attributes of used motorcycles include: brand, transmission, model, type, price, cc, year of manufacture. Used motorcycles are recommended only for three well-known brands, namely Yamaha, Honda and Suzuki with the WASPAS method. This study aims to build a decision support system that can be used to provide recommendations for the selection of used motorcycles according to the wishes and needs of consumers using the WASPAS method. The used motorcycle selection system using the WASPAS method with the selection of criteria for used motorcycles by choosing the Honda brand and automatic transmission, the results obtained are Honda Scoopy recommendations with a value of 1.00.

The state is an organization that has a purpose. The purpose of this study is to enforce the law regarding permits for waste water disposal in motor vehicle washing businesses and the sanctions imposed by the government on motorized vehicle washing businesses that do not have a waste water disposal permit. Normative juridical research, namely research originating from laws and regulations that present actual facts with the topic of study. Law enforcement of waste water disposal permits in motorized vehicle washing businesses through administrative instruments aims to prevent acts or omissions that violate the law or do not meet the requirements, stop or return to their original state (before the violation). So the focus of administrative sanctions is the actions of violators of the rules. In the Surabaya City Regional Regulation Number 12 of 2016 concerning Water Quality Management and Wastewater Control Article 34 explains the administrative sanctions referred to in the form of: written warning, Government coercion, Freezing of waste water disposal permits, Revocation of waste water disposal permits. In addition to administrative sanctions, there are also criminal sanctions in the form of violations. The local government should socialize the Regional Regulation on Water Quality Management and Wastewater Control to the general public and the organizers of motor vehicle washing wastewater management (motor vehicle washing entrepreneurs) in order to increase legal awareness embedded in the community and it is hoped that the government will issue implementing regulations, namely Regulation Mayor.

Electricity is one of the vital needs that is indispensable for all humans and other places, one of which is PT. Cemindo Gemilang, engaged in the cement-producing industry, requires a huge electricity capacity. To reduce or reduce the cost of electrical energy, a power plant unit and a WHRS (waste heats recovery system) were made to supply electrical energy to the cement plant area. PT. Cemindo Gemilang and the Power Plant rely heavily on electric motors, almost all of which operate using electric motors. The electric motor is a single-phase or three-phase type with a voltage of 11 KV, 6.6 KV or 400 volts. When all generating units operate, all electric motors that play an essential role will continue to be active so that damage is often caused by operation and service life therefore in the power plant department, and there is an electrical and mechanical maintenance division to maintain the continuity of the power plant operational system. This study's aim 1). Explain about electric motors, 2). Explain the definition of the water jet pump, 3). Explain how the water jet pump works 4). Explain the components used in electric motors and their repair and maintenance.