E-Journal Politeknik Negeri Cilacap
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Pengaruh EM4 Terhadap Pengolahan Limbah Cair Industri Tahu Menjadi Pupuk Organik Cair
Get PDFHousehold waste contains high enough organic pollutants which can be used as raw material for liquid organic fertilizer. The addition of EM4 (Effective Microorganisms) in the manufacture of fertilizers aims to accelerate the process of making organic fertilizers effectively and EM4 can also improve the quality of the fertilizer. The method used in the manufacture of this fertilizer is an anaerobic method. The tofu industry liquid waste is accommodated in tubs that have been labeled A and B. Then the same treatment is given, namely the addition of 750 mL of coconut water for every 3 liters of tofu industrial liquid waste and 90 grams of granulated sugar in each tub. In the tub labeled B, 90 mL of EM4 was added. The tub to which these ingredients have been added is then closed tightly and fermented for 14 days. Parameters tested include pH, temperature and also levels of C-Organic. After 14 days of fermentation, the pH obtained was 4. The pH of the liquid organic fertilizer decreased because the C-Organic decomposed in the fermentation of this liquid organic fertilizer into organic acids. C-Organic content after fermentation for sample A was 0.57% and C- Organic content for sample B was 0.42%. The low levels of C-Organic are due to the addition of EM4 during the fermentation process which can break down compounds such as carbohydrates and proteins into simpler compounds that can later be utilized by plants. This standard of liquid organic fertilizer is adjusted to the Regulation of the Minister of Agriculture no. 70/Permentan/SR.140/10/2011. Liquid organic fertilizer with the addition of EM4 will affect the yield of C-Organic content
Uji Kualitatif Penurunan Kadar Lemak, Kandungan Padatan, dan Kekeruhan Pada Air Limbah Domestik Dengan Grease Trap Bar Screen Filtration
Get PDFSources of water pollution are usually derived from industrial or factories, homes, markets, rice fields, and hospital liquid waste. Water that contains detergent, feces and leftover foods that go into the drain daily can affect the balance of physics and chemistry of water. Residues that go into the sewer pipes can cause a blockage in the pipes. The objective of this study was to use a filtration bar screen grease trap to lower fat content, solids, and turbidity in domestic wastewater (dish-cleaning wastewater). The study is divided into two main stages which is the grease trap filtration bar screen assembly and the process for the grease trap. The grease trap works to catch leftover dirt and fats so that they do not block the pipes in the drain. Dish-cleaning sewage that has been processed in grease trap is not clogging up pipes in the sewer because the filtration process had separate solids and fats/oil. Fat content, solids, and turbidity is decreased after treatment. The modification of grease trap is possible so it does not only separate leftover food, fat or oil, but also purify wastewater by decreasing Total Suspended Solid (TSS)
Stabilitas Emulsi Minuman Virgin Coconut Oil dengan Pelarut Air Kelapa
Get PDFVirgin Coconut Oil (VCO) is a pure coconut oil product whose manufacturing process does not involve the heating process and the workmanship is very simple. VCO is reportedly able to prevent and treat various diseases such as being able to kill viruses, bacteria, increase endurance and moisturize the skin so that people are increasingly interested in consuming it, but its "oily" taste causes VCO products in the form of packaging drinks to be less popular. This study aims to determine the stability of VCO emulsions with the addition of coconut water at variations in concentration. The working procedure carried out is the determination of the ratio of coconut water and VCO, determination of emulsifier concentration, viscosity, pH change and creaming index.This study aims to establish a good description of VCO beverage products and favored by panelists.The research method used is the method (experimental methode) using random group design (RAK)
Rancang Bangun Sistem Pemotong pada Mesin Pengupas dan Pemotong Kentang Spiral dengan Kapasitas 15 Kg/Jam
Get PDFSpiral potato peeler and cutter is a machine used to assist the production process of a home-based bussiness in potato processing, starting from the peeling process to the cutting process carried out in one machine frame. The design and construction of the cutting system on spiral potato peeler and cutter machine with a capacity of 15 kg/hour has several objectives, namely being able to make detailed analisis of a spiral potato cutting machine, being able to calculate parts of the machine elements used in parts of the cutting system and being able to did spiral potato machine testing. The methode used in the preparation of this project report is through the VDI 2222 approach which begins with the plan, conceptual, design and completions stages.The results of the calculation of the cutting system elements on the spiral potato peeler and cutter machine include the large diameter of the shaft used is 12,7 mm, the use of 84 watt motor power and the capacity of the cutting system on the spiral potato cutting machine is 15,25 kg/hour
Pengolahan Limbah Tempurung Kemiri Sebagai Adsorben Senyawa Etilen Dengan Penambahan Kalium Permanganat (KMnO4)
Get PDFCandlenut (Aleurites mollucana) is one of the biggest potentials, especially in Sumbawa Regency. Apart from being a spice, Candlenut also produces waste in the form of shells with a very large carbon content. So that in this study, the use of candlenut shells as adsorbent was carried out using potassium permanganate or KMnO4. The way it works in this research is by doing a charcoal process on the hazelnut shell waste as the carrying substance. Basically, there are 3 stages in this research, including the carbonization of candlenut shells so that they become charcoal using a drum furnace that has been designed by yourself. Subsequently, the composite beads were sieved by using a 100 mesh sieve. Then KMnO4 is added to the mashed charcoal. The variations in the weight of KMnO4 used are 15 grams, 30 grams, and 45 grams. At the test stage, it was carried out by testing the chemical characteristics of the water content, ash content, and analysis of the best samples. At the end of the study, physical and chemical tests were also carried out on composite beads. The results showed that the best water and ash content was found in the amount of addition of KMnO4 compound at 15 grams, namely 7.33% and 7%, respectively. These results indicate that composite bead products have met the SNI 06–3730-1995 standards. For the effectiveness of absorption of ethylene compounds, the resulting composite beads required 15 grams of KMnO4 for the best absorption of 6.1% ethylene
Pemanfaatan Kulit Jeruk Nipis (Citrus aurantifolia) Menjadi Handsanitizer Gel
Get PDFHand sanitizer is a hand sanitizer antiseptic that is able to clean germs or viruses that stick to the hands. Most in the hand sanitizer market still use alcohol with a concentration of ±50%-70%. The use of alcohol in hand sanitizer is considered less safe for health because alcohol is an organic solvent that can dissolve the layer of fat and sebum on the skin that serves as a protector against infection of microorganisms. In addition, alcohol is also flammable and if repeated use on the hands will cause irritation. Research methods conducted in the determination of water content, the manufacture of hand sanitizer gel, pH measurement, viscosity and antimicrobials. Variations in carbpol concentration affect the physical properties and physical stability of the gel. Increased concentration of Carbpol increases the viscosity of the preparation. Based on the results of research conducted, it can be concluded that lime (Citrus aurantifolia) has the potential to inhibit the growth of microbes <1,0 x 101 colonies / g.
 
Perancangan Design Mesin Pelontar Pakan Ikan Berbasis Mikrokontroler Arduino Mega 2560
Get PDFFish feeder machine is a machine designed to perform a feeding process that works automatically according to a predetermined feeding schedule, this machine can help improve efficiency both in terms of feed quantity and time in the feeding process. The purpose of designing and calculating machine elements in this Fish Feeder is to calculate parts of machine elements, determine the concept of machine design, draw machine drawing detail, and determine bill of material. The manufacture of this machine uses approach method of James H Earle and concept selection using the method of Stuart Pugh, drawing software using Solidworks 2015 and working drawing using ISO Standard. The design of the throwing machine that has been made is the result of a literature approach and field surveys (direct surveys at the Fisheries Service and at the Fish Seed Center where fish feed throwing machines are needed). This machine needs a continuous process of development and testin
Pangan Fungsional Berbasis Susu dan Produk Turunannya
Get PDFMilk is food that contains complete nutrients that are consumed by various groups. Milk contains macronutrients such as protein, fat and carbohydrates as well as micronutrients such as vitamins and minerals and other components that are useful for human nutritional and health needs. Apart from containing micro and macronutrients, milk and its derivative products also contain bioactive components that have certain physiological functions that are beneficial to health, which are called Functional Foods. Milk-based functional food and its derivatives have bioactive components such as bioactive peptides, prebiotics, probiotics, conjugated linoleic acid (CLA) and several other bioactive components. Milk and its derivative products such as cheese, yogurt, kefir, and other derivative products have the potential to be developed. The development of milk-based food into functional food is expected to reduce the risk of degenerative diseases such as obesity, coronary heart disease, hypertension and cancer
Dampak Hujan Asam Pada Lingkungan
Get PDFThe term acid rain refers to the deposition of the atmosphere containing acidic compounds that fall to the earth in the form of rain, snow, particulates, gases and vapors and have a negative impact on the earth. Acid rain was first introduced by Ducros (1845) and later described by the English chemist Robert Angus Smith (1852) whose research studies linked the sources of acid rain to industrial emissions and included early observations of the damaging environmental effects. This article summarizes the scope of acid rain by providing the latest scientific advances on how emissions, deposition, and temporal trends of the pollutants that cause acid rain vary around the world. Considerable progress in reducing SO2 and NOX emissions is evident throughout North America and Europe. In contrast, the decline in SO2 started only about 10 years ago in China and the decline in NOX emissions only in the last few years. While in other parts of Asia such as India, these emissions continue to increase. Investigations of chemical contaminants in surface water, soil, fish, and vegetation show that recovery is slow and will unfold over decades as emissions and depositions continue to decline. Whether the affected ecosystems will return to their current acid rain conditions is uncertain and will likely depend on many other factors such as human disturbance and natural disasters and climate change. Gaining a better understanding of how acid rain interacts with various factors that affect ecosystem trajectories remains a challenge for the scientific community to address
Efektivitas Pemberian Limbah Biogas Sapi Terhadap Kadar Protein Jerami Jagung Untuk Pakan Ternak
Get PDFPlant-livestock integration was one of the concepts of integrated agriculture. Agricultural waste had the potential to be developed as animal feed material, such as corn straw. The availability of waste, such as agricultural, livestock and biogas wil pollute the environment if it is not utilized. Therefore, the purpose of this study was to determine the effect of giving biogas waste on the protein content of corn straw, as a by-product of corn cultivation. The treatment in this study used two factors, namely (i) cow biogas solid waste consisting of 2 treatment levels, namely 0 and 5.4 tons/ha, and (ii) cow biogas liquid waste consisting of 4 treatment levels, namely 0 liter/ha. , 500 liters/ha, 1000 liters/ha and 1500 liters/ha. The data measured were nitrogen content, nitrogen absorption and protein content of corn straw. The results showed that the application of biogas waste was able to increase the protein content of corn straw