Pengaruh Rasio Penambahan Acticomp terhadap Degradasi Struktur Morfologi Tandan Kosong Kelapa Sawit pada Proses Pengomposan Metode Windrow

Oil palm empty fruit bunches (OPEFB) is a solid waste that significantly produced by palm oil mills. The main content of OPEFB is lignocellulose. High lignin in OPEFB cause the lenghth time of OPEFB decompositition. The decomposition process can be accelerated by the addition of decomposers, such as acticomp. Therefore, this study aimed to analyze the degradation of structure morphology OPEFB also composting time and C/N ratio by the addition of acticomp. This research method using three variations of the ratio addition acticomp to 100 kg OPEFB composted, 0.5 kg acticomp, 1 kg acticomp and 1.5 kg acticomp. The comsposting process using windrow composting system. The results were obtained the damage of OPEFB morphological structure and the decreasing ratio of C/N whereas 1.5 kg acticomp/100 kg as the biggest within 30 days. C/N ratio reached 19.67, in accordance with the regulation of the quality standards 28/Permentan/SR.130/5/2009

Perengkahan PFAD (Palm Fatty Acid Destillate) untuk Menghasilkan Biofuel Menggunakan Katalis Ni-Mo/Zeolit

Petroleum reserves are depleted in Indonesia along with increased fuel requirements, demanding Indonesian society to harness alternative energy, one of which is biofuel. In this study, biofuels produced from cracking fatty acids contained in Destillate Palm Fatty Acid (PFAD). PFAD converted into biofuels via catalytic cracking process using a catalyst Ni.Mo / Zeolite with reaction temperature 380 oC in a stirred batch reactor. Metal concentrations in the zeolite was varied at 0%, 0.5%, 1% and 1.5% and the variation of the reaction stirring 300 rpm, 400 rpm, 500 rpm and 600 rpm. Cracking process using nitrogen gas with a flow rate of 150 ml / min. Yield (%) of the product obtained at the maximum stirring speed of 500 rpm with a metal concentration of 1%, amounting to 71.43% or 125 ml with 31.53% biofuel conversion. The composition of biofuels on cracking products was 8.8% and 35% Gasoline Kerosene and Diesel

Isolasi Lignin dari Jerami Padi dengan Metoda Klason

Lignine is a complex polimer with high molecular weight which compiled of fenilpropane units. This study aims to know concentration of NaOH influence and delignification time of rice straw influence againts sucrose content of rice straw. Analysis of lignine purity using Klason Method. Isolation of waste rice straw are extraction, hydrolysis, delignification, and purity by using Klason Method. Extraction process be done on variety ofNaOH catalyst concentration (4%, 6%, 8%) in hydrolisis process and delignification time (1 hour, 11/2 hour, and 2 hour) . The best hydrolisis result is 8%, the best delinification time is 1 jam with concentration 8% NaOH in the process of ripening and the highest purity of lignine is 3,14%. The result of delignification will be analized its lignine concentration usingfor Fourier Transform Infra Red (FTIR) to know its function cluster

Prediksi Sebaran Partikulat Insinerator RSUD Arifin Achmad Menggunakan Screen View

Hospitals as health facilities that are curative and rehabilitative should be free of pollutants such as particulate matter. One cause of the particulate matter in the hospital is incineration. Hospital incinerators that burn trash in hazardous / infectious, so it is necessary to determine the level of distribution of the particulates produced by burning incinerator. This research is a descriptive study using dispersion method gauss with Screen View program. Parameters that are seen medical waste generation, particulate concentrations, wind direction and wind speed, and distance distribution of particulates. The data obtained are presented in the form of graphs and tables. The highest particulate distribution on the wind direction is north east with the concentration of 2.32 μg / m3 at a distance of 100 m from the incineratorat a distance of 100 m from the incinerator emissions rate 0.00957 g/s, 0.38 stack inside diameter and 9 m stack high

Analisis Produksi Gas Metana (CH4) dan Karbon Dioksida (CO2) dari Tempat Pembuangan Akhir Kota Pekanbaru

In 2013, Municipal Solid Waste (MSW) of Pekanbaru was transported to landfill reach 14.631 tonnes/month from 999.031 people with 4,06% population growth rate. The waste in landfill will be decomposed in anaerobic digestion process and produced methane (CH4) with composition of 45%-60%. Based on Peraturan Menteri Pekerjaan Umum Republik Indonesia Nomor 03/Prt/M/2013 the operational of the landfill either by controlled landfill or sanitary landfill should be able to control the landfill gas, ensure the worker safety and emergency response and management of flammable threat. This research predicted the production and dispersion of methane gas and carbon dioxide from MSW of Pekanbaru landfill from anaerobic fermentation process. Production of methane gas and carbon dioxide were analyzed with LandGEM. Based on the LandGEM analysis shown that the total landfill gas from Pekanbaru landfill in 2020 will reach 3.147.585 m3/year equalsto 359,313 m3/hour. Total methane generation will reach 1.888.551 m3/year equals to 215,588 m3/hour and 1.259.034 m3/year equals to 143,725 m3/hour for total carbon dioxide