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

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

Pemanfaatan Limbah Pabrik Kelapa Sawit sebagai Kompos dengan Variasi Penambahan Dosis Abu Boiler Serta Penggunaan Bioaktivator EM-4

Palm Oil Mill Effluent treatment produces sludge as byproduct. Without being processed, the sludge will cause damage to environment and industry. The aim of this research is to convert the sludge, combined with boiler ash and palm oil fiber and litter of dry leaves into compost by using EM-4 as the activator. The instrument needed is a simple composter with height 40 cm and diameter 30 cm. The variations of the boiler ash dosage are 1 kg, 1,5 kg and 2 kg and the variations of composting time is 21 days in order to analyze the compost quality produced. The research showed that compost with 1 kg boiler ash dosage processed for 21 days resulted to a C/N ratio that meets SNI's requirement 19-7030-2004 C/N ratio=11,72. The conversion of palm's oil sludge into compost can be used as an alternative in utilization waste into valuable product

Pembuatan Pestisida Nabati dengan Cara Ekstraksi Daun Pepaya dan Belimbing Wuluh

The use of botanical pesticides is one alternative that is safe and environmentally friendly to take advantage of the potential of plant extracts as pesticides to control pests. The purpose of this research is to study the effect of time variations of submersion to yield and pH. Test secondarymetabolites component of maximum yield and to test the toxicity of the extract obtained from test animals and estimating the LC₅₀ extract of Papaya leaf and starfruit in each submersion can kill mosquito larvae in 24 hours. The research was done by extraction method,and separation of secondary metabolites with rotary evaporator with a variation of submersion that is 1, 3, 5, 7 and 9 days, the ratio of material and solvent is 1:4. The highest result is pointed at 9 days submersion, 9,9% and ph 5,73. Secondary metabolites components successfully tasted are alkaloids, flavonoids, tannins, saponins, and sulfur. LC₅₀ value of each pobit test is 2425,013 ppm obtained at 1 days of submersion, in 3, 5, 7 days showed LC₅₀ ppm consist of 2063,153 ppm, 1497,171 ppm, 1088,765 ppm. In 9 days has not result of LC₅₀ because the animals (object) have very high mortality

Metode Multiv Soil Layering dalam Penyisihan Parameter TSS Limbah Cair Kelapa Sawit dengan Variasi Hydraulic Loading Rate (HLR) dan Material Organik pada Lapisan Anaerob

This study uses Multi Soil Layering (MSL) to cultivate oil palm liquid waste. The purpose of the research was to determine the efficiency of contaminant parameter Total Suspended Solid (TSS) allowance, study of the influence factors of variation of organic material in the mix on a layer of soil anaerobic and variation of Hydraulic Loading Rate (HLR) of the efficiency of the liquid waste processing with MSL, and compare research results with Keputusan Menteri Lingkungan Hidup No. 51 in 1995. In this study used two reactors measuring 30 cm x 26 cm x 35 cm, consisting of aerobic and anaerobic layer. Aerobic layer on both the same reactor, namely the gravel and perlit measuring 3-5 mm, while the second reactor anaerobic layer is distinguished, where the soil is a mixture of 1 reactors with active charcoal coconut shell and on reactor 2 is a mixture of ground with active charcoal banana peels by a ratio of 2: 1. Liquid waste oil palm streamed with the variation of Hydraulic Loading Rate (HLR) of 500 L/m2 day, 750 L/m2 day, 1000 L/m2 day at each reactor. TSS concentration before processing by the method of MSL is 890 mg/L, and, after processing concentration TSS is down to 100-240 mg/L. Variation of organic material gives the effect on the efficiency of the allowance which the TSS on charcoal activated coconut shell that has larger pores can do more MSL maximum mechanism. Variation of Hydraulic Loading Rate (HLR) also exert influence, where the smaller the HLR is given then the efficiency will be high. Efficiency of TSS removal are 79,77-88,76% in reactor 1 and 73,03-79,77% in reactor 2

Studi Timbulan Komposisi dan Karakteristik Sampah Domestik Kecamatan Tampan Kota Pekanbaru

Design of solid waste management in an area needs some basic information comprising solid waste generation data, its composition and characterictics. This research aimed to analyzed the generation, composition and characteristic of domestic waste in Tampan. Research methodology refered to SNI 19-3964-1994 based on income levels. Results showed the average domestic solid waste generation in Tampan was 1.45 litre/person/day or 0.19 kg/person/day. Domestic waste composition Tampan was dominated by organic waste about 93,60%, composed by mostly 50 % food waste, and anorganik waste about 6,40%, composed by mostly 3,77 % mirror waste. For physical characteristic, domestic waste density was 0.13 kg/litre with compaction factor of 0,97. Chemical characteristic including water content was 31,37 %, volatile content was 55,62 % and ash content was 11,35 %