The manufacture of inorganic hybrid membranes from the ingredients of activated zeolite (Z), clay (CL), white Portland cement (CW) and PVA adhesive has been carried out on various M1, M2 and M2 material compositions (Z: CL: CW: PVA = 25%: 50%: 20: 5%), (Z: CL: CW: PVA = 50%: 25%: 20: 5%), (Z: CL: CW: PVA = 75%: 0%: 20: 5%) respectively. 100 mesh zeolites are activated using 2M HCL. The membrane is printed in a cylindrical shape with a specification of 69,83x250mm and is burned at a sintering temperature of 500-700OC. This study aims to determine the classification of produced membranes and determine the effect of temperature on the characterization of an inorganic hybrid produced membranes based on permeability, density, porosity and membrane morphology test using Scanning Electron Microscopy (SEM). The results showed that the temperature influences membrane characterization. The higher is the temperature, the lower is the membrane density. The membrane pore size decreases and porosity increase. The results of the study obtained an inorganic hybrid membrane (MHA-ZC) classified as microfiltration membrane (MF) with a pore size of 1,2-6,302μm porosity 45%, density 0,811 gr/cm3, and flux permeability 313,57 L/m2.jam. The M1 membrane test has been able to remove the colour of the 90.59% peat water from 170 PtCu to 16 PtCu, and the pH of the peat water is successfully neutral at 6.5-7.5.
The existence of water lately is quite alarming, especially in urban areas. The increasing of river water pollution through industrial and domestic waste, herbicide / pesticide and also the contaminant left-over cause the quality of river water getting worse beyond the allowance limit of standard for clean and drinking water. The most important criteria in examining clean and drinking is the ingredient test of microbiology with Escherichia Coli (E. Coli) bacteria, which is a patogenic bacteria to human, as the indicator. This study aims to remove E.Coli bacteria in water river in Geudong, Lhokseumawe using membrane filter made of ceramic mixturing with clay and fly ash n various compositions; clay:fly ash (40%:60%), clay:fly ash (50%:50%) and clay:fly ash (60%:40%). The ceramic membrane was made with sintering method in 700°C temperature for 4 hours and the filtration test was done in varios of operating pressure; 0,25; 0,50; 0,75, 1,00 and 1,25 bar. The result of the study showed that ceramic membrane with the composition of clay:fly ash (40%:60%) was able to reject E-Coli up to 99,048% with operating pressure 0,25 bar. Using Scanning Electron Microscopy (SEM) test, it is known that the ceramic membrane with the composition of clay-fly ash (40%:60%) is included as microfiltration membrane with pore size 1,6 μm – 2 μm.
Ceramic membranes made from low-cost materials have increasingly been developed. Fly ash is a waste from cement industries, while clay is a natural resource that can be easily found to be used as economical mixed materials in the production of ceramic membrane. The manufacture of microfiltration ceramic membrane from fly ash - clay mixture has been carried out using the sintering method for 4 hours at low sintering temperatures variations at 750 °C (M1), 800 °C (M2), 850 °C (M3) and 900 °C (M4), respectively. The results showed that the ceramic membrane that was sintered at a temperature of 900 °C (M4) had the optimum characteristics with a porosity of 40.82%, a density of 1.0026 gr/cm3. From scanning elctron microscopy (SEM) analysis showed that the M4 membrane was classified as a microfiltration membrane with an average pore size of 0.64 μm. The energy diepersive x-ray (EDX) analysis showed that the composition of the M4 membrane was dominated by elements O, Si, and Al. Moreover, the x-ray diffraction (XRD) analysis showed that the fraction patterns of the membranes (M1, M2, M3, M4) were dominated by the quartz phase (SiO2) and illite phase ((KH3O)Al2Si3AlO10(OH)2).
Kegiatan Pengabdian Kepada Masyarakat (PKM) dilakukan pada mitra masyarakat ekonomi produktif pengahasil bawang goreng kemasan di desa Mon Geuddong Kota Lhokseumawe Kecamatan Banda Sakti Provinsi Aceh. Permasalahan yang dihadapi mitra adalah pada bidang produksi dimana proses pengrajangan bawang menggunakan pisau iris membutuhkan waktu yang lama dan kapasitas produksi maksimum hanya 0,5 kg/jam atau 8 kg/hari. Sehingga kegiatan PKM ini bertujuan untuk memecahkan permasalahan produksi dengan ketidaksiapan mitra dalam memenuhi permintaan konsumen adalah dengan mengimplementasikan mesin perajang bawang segar otomatis berbahan stainless steel foodgrade dapat dioperasikan dengan cepat, praktis, ekonomis, dan menghasilkan bawang rajang yang seragam. Pelaksanaan PKM dilakukan di lokasi mitra dimulai dengan observasi tim pelaksana PKM ke lokasi mitra, pembekalan materi, perancangan mesin pengrajang bawang, demonstrasi, pengoperasian, dan perawatan. Hasil implementasi mesin rajang terbukti dapat meningkatkan kapasitas produksi bawang rajang dari 0,5 kg/jam menjadi 12 kg/jam atau meningkatkan kapasitas bawang goreng dari 3,5 kg/hari menjadi 35 kg/hari
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