6 research outputs found
PEMANFAATAN LIMBAH IKAN MENJADI PUPUK ORGANIK
Fish waste contain various nutrients which are: N (Nitrogen), P (phosphorus), K
(Potassium) which is a constituent component of organic fertilizer. With the hydrolysis
process, processed fish waste into organic fertilizer with a high concentration. The
content of bromelain in pineapple fruit is one type of enzyme sulfhydryl protease that is
able to hydrolyze peptide bonds in a protein or polypeptide into smaller molecules of
amino acids. This research aims to produce organic fertilizers that contain various
nutrients that plants need, to overcome shortages of fertilizer, supporting the
Government's program "Go Organic 2010". Variables that performed in this study is
the concentration of enzyme, and hydrolysis time. And the best results take place on
condition: nutrients Nitrogen (N) at 40% enzyme concentration, hydrolysis time of 10
hours with levels of 48.021%; nutrient phosphorus (P) at 60% enzyme concentration,
hydrolysis time of 4 hours with 17.886% and the nutrient levels of Potassium (K) at
60% enzyme concentration, hydrolysis time of 8 hours with levels of 16.14
Penentuan Koefisien Perpindahan Massa Liquid Solid Dalam Kolom Packed Bed Dengan Metode Adsorpsi
Proses perpindahan massa sangat penting dalam bidang ilmu pengetahuan teknik. Perpindahan massa terjadi pada komponen dalam campuran berpindah dalam fase yang sama atau dari fase satu ke fase yang lain karena adanya perbedaan konsentrasi.Salah satu jenis kolom yang popular adalah Packed Bed yang merupakan suatu silinder panjang, biasanya berdiri tegak dan berisi “packing” yang diam di dalamnya. Karena penggunannya yang sangat luas, maka diperlukan lebih banyak lagi informasi dan study untuk memperkirakan koefisien perpindahan massa dalam kolom “Packed Bed”.Penelitian ini dilakukan dalam sistim Adsorpsi dengan menggunakan karbon aktif lokal sebagai adsorbennya dan larutan Asam benzoat sebagai adsorbatnya, kolom bed dengan diameter 63 mm, dan tinggi partikel 40 cm. Laju alir cairan sebesar 10 ml/s sampai 30 ml/s pada konsentrasi awal yang berbeda-beda antara 0.01 sampai 0.03. Hasil penelitian ini harga konsentrasi keluarga akan semakin kecil dengan semakin naiknya kecepatan liquida dengan konsentrasi awal tetap, sehingga harga koefisien perpindahan massa (kLa) antara 0,03287- 0,03390 s-1 atau semakin besar dengan semakin besarnya kecepatan alir liquida pada konsentrasi awal tetap. The process of mass transfer is very important in the field of technical science. Mass transfer occurs when the component in the mixture moves in the same phase or from one phase to another because of concentration difference.One of the column types which is quite popular is packed bed which shape is silinder like. Usually it can keep on erecting when we put the packing in it. Because the wide use of packed bed, more information and study about the coefficience of mass transfer in the column of packed bed are needed.Research was conducted by implementing the adsorption system with the local active carbon as it's. A absorber and acid solution of benzoat as its and adsorbat, the packed bed with its diameter 63 mm and the height of particle 40 cm. The dilution rate of different flow is reaching 10 m/s to 30 ml/s with the starting concentration between 0,01 to 0,03.The result of the research showed that the concentration value would become smaller as the liquid rate in creased with constant starting concentration. So that the coefficient value of mass transfer was between 0,03287-0,033905-1 or became greater as the liquid rate was increasing with constant starting concentration
PENENTUAN KOEFISIEN PERPINDAHAN MASSA LIQUID SOLID DALAM KOLOM PACKED BED DENGAN METODE ADSORPSI
Proses perpindahan massa sangat penting dalam bidang ilmu pengetahuan teknik. Perpindahan massa terjadi pada komponen dalam campuran berpindah dalam fase yang sama atau dari fase satu ke fase yang lain karena adanya perbedaan konsentrasi.Salah satu jenis kolom yang popular adalah Packed Bed yang merupakan suatu silinder panjang, biasanya berdiri tegak dan berisi “packing” yang diam di dalamnya. Karena penggunannya yang sangat luas, maka diperlukan lebih banyak lagi informasi dan study untuk memperkirakan koefisien perpindahan massa dalam kolom “Packed Bed”.Penelitian ini dilakukan dalam sistim Adsorpsi dengan menggunakan karbon aktif lokal sebagai adsorbennya dan larutan Asam benzoat sebagai adsorbatnya, kolom bed dengan diameter 63 mm, dan tinggi partikel 40 cm. Laju alir cairan sebesar 10 ml/s sampai 30 ml/s pada konsentrasi awal yang berbeda-beda antara 0.01 sampai 0.03. Hasil penelitian ini harga konsentrasi keluarga akan semakin kecil dengan semakin naiknya kecepatan liquida dengan konsentrasi awal tetap, sehingga harga koefisien perpindahan massa (kLa) antara 0,03287- 0,03390 s-1 atau semakin besar dengan semakin besarnya kecepatan alir liquida pada konsentrasi awal tetap. The process of mass transfer is very important in the field of technical science. Mass transfer occurs when the component in the mixture moves in the same phase or from one phase to another because of concentration difference.One of the column types which is quite popular is packed bed which shape is silinder like. Usually it can keep on erecting when we put the packing in it. Because the wide use of packed bed, more information and study about the coefficience of mass transfer in the column of packed bed are needed.Research was conducted by implementing the adsorption system with the local active carbon as it’s. A absorber and acid solution of benzoat as its and adsorbat, the packed bed with its diameter 63 mm and the height of particle 40 cm. The dilution rate of different flow is reaching 10 m/s to 30 ml/s with the starting concentration between 0,01 to 0,03.The result of the research showed that the concentration value would become smaller as the liquid rate in creased with constant starting concentration. So that the coefficient value of mass transfer was between 0,03287-0,033905-1 or became greater as the liquid rate was increasing with constant starting concentration
PENGAMBILAN LIGNIN DARI BATANG RUMPUT GAJAH DENGAN PROSES EKSTRAKSI
Indonesia mempunyai iklim yang sesuai bagi pertumbuhan rumput gajah (Pennisetum purpureum), sehingga rumput gajah dapat diperoleh dengan mudah. Selama ini rumput gajah belum dimanfoatkan secara maksimal, akan tetapi diperki rakan sebesar 70% tanaman rumput gajah digunakan sebagai makanan ternak dan produksi bioetanol Indonesia memilih beberapa tempat penghasil rumput gajah seperti di povinsi Jawa Tengah, Jawa Barat dan Jawa Timur serta akan dikembangkannya dibeberapa daerah lainnya. Rumput gajah mempunyai kadar selulosa, hemiselulosa .Berta lignin yang dapat digunakan sebagai penghasil berbagai produk. Meister Dan Hon (1996) menambahkan, penurunan cadangan minyak selama awal abad ke 2 akan membuat lignin menjadi sumber daya kimia yang penting bagi masa depan masyarakat dunia. Lignin dapat digunakan sebagai additive pada minyak pelumas,,senw,semen Portland bahan pengikat pada industri kecil maupun industri percetakan sebagai bahan baku pembuatan vanili sintetik dan juga dapat digunakan sebagai bahan perekat
Berdasarkan hasil penelitian, Pada proses ekstraksi : kondisi terbaik di peroleh pada konsentrasi larutan pelarut yaitu larutan KOH 3% yang menghasilkan kadar lignin sebesar 30,51% Rendeman lignin terbesar pada konsentrasi 6% selama 6 jam .sebesar 46,97% dan rendeman lignin terkecil pada konsentrasi 15% selama 2 jam sebesar 20,55% Dan konsentrasi pelarut dan waktu ekstraksi merupakan faktor yang sangat berpengaruh dalam ekstraksi lignin
KAJIAN PERAN BAHAN PEMUTIH NATRIUM PIROPOSPHATE (Na2H2P2O7) TERHADAP PROSES PEMBUATAN TEPUNG UBI JALAR
The study aims to determine the effect of bleaching on sweet potato flour. The specified condition is weight 300 g sweet potato, with white colour and Piroposphate Sodium (Na2H2P2O7) concentration: 0; 0.3; 0.6; 0.9; 1.2 g And soaking time: 5; 10; 15; 20; 25 minutes. The results obtained the best degrees of color at concentration of 1.2 g with 25-minute immersion time of 30 TCU, the lowest obtained at concentrations of 0 g 0 minutes by long immersion in the amount of 5.0 TCU. To obtain the best conditions of water content at a concentration of 1.2 grams with a long soaking 25 minutes in the amount of 11.78%, the lowest obtained at concentrations of 0 g 0 minutes by long immersion in the amount of 7.8%. For the largest starch content was obtained at a concentration of 0.6 g with 25-minute long immersion in the amount of 28.54%, the lowest obtained at concentrations of 0 g to 25 minutes long immersion in the amount of 26.66%.Keywords: Sodium Piroposphate, flour, sweet potatoes, bulbs, bleach</p
PEMBUATAN VIRGIN COCONUT OIL (VCO) DENGAN METODE SENTRIFUGASI
Virgin Coconut Oil (VCO) is the oil produced from fresh coconuts. Unlike the ordinary coconut oil, Virgin Coconut Oil (VCO) is produced not by the addition of chemicals or processes that use high heat. Virgin Coconut Oil (VCO) beneficial to health, this is because Virgin Coconut Oil (VCO) contains many medium chain fatty acids (Medium Chain Fatty Acid / MCFA). MCFA are most in the Virgin Coconut Oil (VCO) is Lauric acid (Lauric Acid). Properties that is easily absorbed MCFA will increase metabolism. The addition of energy produced by the metabolism of this produces stimulating effects in the human body thereby increasing the level of energy produced. Core processes in the manufacture of Virgin Coconut Oil (VCO) is located on the separation of oil from water and protein. Many obstacles must be faced for separating oil from water and proteins, such as in the fermentation process, the separation process takes a long time to get the Virgin Coconut Oil (VCO). While the centrifugation, the separation is done by utilizing the weight of the lighter oil. Although I do not require centrifugation long time but the way it has in the purity of the product constraints. This research was conducted by using coconut cream from coconut milk is silenced for 3 hours. Then the cream is incorporated into the instrument with speed centrifuges spin 600,700,800,900 and 1000 rpm with vaiasion times very; 30, 45, 60.75 and 90 minutes after that coconut cream layer divided into 3 layers of oil that is, the middle layer of protein (blondo) and next underwater layer silenced for 8,10,12,14, and 16 hours . The results of virgin coconut oil (VCO) is obtained and then analyzed with the parameters water content, protein content, Lauric acid, color and odor. From the research, obtained the best conditions of rotational speed centrifuges at 1000 rpm and centrifuges turnaround time 90 minutes and 8 hours stagnand time with the quality of Virgin Coconut Oil (VCO) which produced yield: Lauric acid yield of 36.67% and 52.23% results.Keywords: sentrifuge, coconut cream,,% yield results, VCO</p