25 research outputs found

    EFFECT OF KATALIS ON MAKING MARBLE SINTHETIC

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    The aim is to utilize waste synthetic marble made of marble and study the effect of these variables marble grain size, amount of catalyst and heavy marble grain on the compressive strength, the wear and water absorption. Materials - the materials used, among others; a. Marble waste, which is obtained from the village Besole, Tulungagung, b. Synthetic Resin (R-154) already in accelerasi. C). Catalyst acid (HCl) with pH ± 4.5. Tools - tools used are a). Machine press with a maximum capacity of 60 tons that have hit the maximum scale division 500 kg.b). Pengaus machine or abrasive objects that can rub try with 3.33 kg load and speed of 49 meters per minute wear. C). Matter. D). Pestle., e). Measuring cup. F). Analytical Balance. Research variables are specified condition that is a). Temperature = 30 o C, b). Resin volume = 40 ml; c). The samples sizes are: Diameter = 5.08 cm, Height = 2 cm; (surface area = 40.5161 cm2); d). Time = 4 hours The treatments are carried out is a). Size Pellets Marble = (10, 16, 20, 35, 48) mesh, b). Catalyst amount = (0.2; 0.4; 0.6, 0.8; 1.0) ml; c). Marble Grain weight = (50, 55, 60; 65; 70) grams

    PEMBUATAN ALKOHOL DENGAN PROSES FERMENTASI BUAH JAMBU METE OLEH KHAMIR SACHAROMICES CEREVESIAE

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    Cashew fruit appareance has been research and have sugar contents 9.67 %. With that sugar contents is probability to used as raw material to production alcohol. The purpose of this resarch is to make alcohol form cashew fruit appareance and kamir sacharomices with fermentation process. Process is operate with ferment concentrate cashew fruit to fermentation bottle with added khamir sacharomices. After approriate with condition that we want so process stoped and analyze result Variable that used is fermentation time and inokulum content. This research can conclude that the best result is get from fermentation time = 60 hours, inokulum content = 6 % and alcohol content as 14.98 %

    KAJIAN PEMANFAATAN LIMBAH CAIR PROSES PEMASAKAN BLEACHING EARTH SEBAGAI KOAGULAN

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    Requirement of seawed as raw materials in many industries which progressively mount have grown industries which process seawed rapidly grow. One of negative effect is contamination environment / pollution with their waste . Therefore the way of treatment in order not to contamination environment and can be exploited again is needed. This research reports waste water treaatment by chemical – physics using process of coagulation – floculation. Selected coagulan and used liquid waste ripening of bleaching earth.. Intention of the research is to degrade rate of COD , BOD and TSS . The results are rate COD 789,62 mg/L, rate BOD 386,12 mg/L, TSS 18,25 mg/L and pH 4 at volume coagulan 50 ml, 40 minute for time of strirrer

    PENGARUH KATALIS PADA PEMBUATAN MARMER SINTETIS DARI LIMBAH MARMER

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    The aim is to utilize waste synthetic marble made of marble and study the effect of these variables marble grain size, amount of catalyst and heavy marble grain on the compressive strength, the wear and water absorption. Materials - the materials used, among others; a. Marble waste, which is obtained from the village Besole, Tulungagung, b. Synthetic Resin (R-154) already in accelerasi. C). Catalyst acid (HCl) with pH ± 4.5. Tools - tools used are a). Machine press with a maximum capacity of 60 tons that have hit the maximum scale division 500 kg.b). Pengaus machine or abrasive objects that can rub try with 3.33 kg load and speed of 49 meters per minute wear. C). Matter. D). Pestle., e). Measuring cup. F). Analytical Balance. Research variables are specified condition that is a). Temperature = 30 o C, b). Resin volume = 40 ml; c). The samples sizes are: Diameter = 5.08 cm, Height = 2 cm; (surface area = 40.5161 cm2); d). Time = 4 hours The treatments are carried out is a). Size Pellets Marble = (10, 16, 20, 35, 48) mesh, b). Catalyst amount = (0.2; 0.4; 0.6, 0.8; 1.0) ml; c). Marble Grain weight = (50, 55, 60; 65; 70) grams

    PENGARUH KONSENTRASI ALKOHOL DAN WAKTU EKSTRAKSI TERHADAP EKSTRAKSI TANNIN DAN NATRIUM BISULFIT DARI KULIT BUAH MANGGIS

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    Manggis (Garenia Mangoslana L.Family bulsi ferae) merupakan tanaman asli asia tenggara, terutama daerah semenanjung malaya. Kulit buah manggis berwarna merah ungu, apabila sudah menua mengandung getah yang pahit dan berwarna agak kuning. Kulit manggis mengandung zat reduktor dalam jumlah banyak, sehingga dapat diambil dan digunakan untuk penelitian. Zat reduktor yang ada dalam kulit buah manggis adalah Tannin, Natrium Bisulfit, Asam askorbat dan Asam sorbat. Zat reduktor yang akan di ekstrak adalah Tannin dan Natrium Bisulfit. Dimana Tannin dapat digunakan sebagai bahan penyamak, sedangkan natrium bisulfit dapat digunakan sebagai zat tambahan pada glukosa dan sirup serta reducing agent. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh konsentrasi alkohol dan waktu proses terhadap ekstraksi zat reduktor kulit buah manggis. Pada penelitian kali ini digunakan alat ekstraksi soxhlet yang prinsip kerjanya jika campuran yang digunakan hanya mempunyai satu daya larut terbatas didalam suatu pelarut sehingga tidak dapat larut dalam pelarut. Pelarut yang digunakan adalah alkohol, dimana Tannin dan Natrium bisulfit larut didalam alkohol. Hasil terbaik pada penelitian ini antara lain: Kadar tannin yang paling banyak diperoleh yaitu pada ekstraksi dengan menggunakan alkohol 70 % waktu ekstraksi 150menit kadar tannin dalam ekstrak adalah 16,45%. Kadar Natrium Bisulfit yang paling besar diperoleh pada hasil ekstraksi dengan menggunakan alkohol 70% waktu ekstraksi 150menit dengan kadar Natrium Bisulfit dalam ekstrak 3,07%

    KINETIKA REAKSI HIDROLISIS ENCENG GONDOK MENJADI FURFURAL DENGAN KATALISATOR HCL

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    Pemanfaatan enceng gondok selama ini belum dilakukan semaksimal mungkin, dar; penelilian yang lelah dilakukan didapat bahwa reaksi penibentukan furfural dari penlosan mengikuti persamaan kecepatan reaksi orde nolo Hidrolisa enceng gondok dijalankan dengan memanaskan bubuk enceng gondok dengan kalalisator asam klorida (HCL) dalam labu leher tiga sambi! diaduk terus menerus selama waktu dan suhu lertentu. Hubungan anlara tetapan kecepatan reaksi dengan suhu reaksi dalam kisaran suhu tersebut sesuai denf!an persamaan Arrhenius, sehingga diperoleh : k= 11,278. e-1920,4/T Pada penelitian ini diperoleh kondisi optimum pada : suhu I05"C ,kosentrasi Hel 4 N dengan waktu 4,5 jam dan hasil furfural yang didapat 0,88 %

    PENURUNAN KOSENTRASI SURFACTAN PADA LIMBAH DETERGEN DENGAN PROSES PHOTOKATALITIK SINAR UV

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    Fotokimia telah ban yak digunakan sebagai alternative pengolahan air. Reaksi fotokimia adalah reaksi-reaksi kimia yang diinduksi oleh cahaya baik secara langsung maupun tidak langsung. Konversi cahaya menjadi energy kimia atau listrik merupakan prinsip dasar fotokimia. Untuk mempercepat reaksi konversi diperlukan adanya katalis yang disebut fotokatalis. Katalis akan atif apabila memperoleh energy cahaya. Dalam proses fotokimia akan terbentuk hidroksil radikal yang akan menurunkan senyawa organic di dalam air limbah seperti surfactant dalam lim bah detergen layanan cuci (laundry) yang sufit didegradasi. Dalam proses penurunan kosentrasi surfactant digunakan katalis Titanium Dioksida( T;OJY dengan .<;umber cahaya yng digunakan adalah lampu UV yang divariasi yaitu 15 watt, 30 watt dan 36 watt .Penelitian ini bertujuan untuk menentukan kemampuan penurunan kosentrasi surfactant dalam limbah detergen laundry, factor-factor yang ditinjau daya lampu, lama penyinaran, dan berat T;02. Hasil penelitian menunjukkan bahwa kemapuan penunman kosentrasi yang terbaik menggunakan li02 sebanyak 2,2 gr dengan hasil95, 6 % pada waktu 2,5jam dan daya lampu 36 watt

    KAJIAN PEMANFAATAN LIMBAH NILAM UNTUK PUPUK CAIR ORGANIK DENGAN PROSES FERMENTASI

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    Waste of the distillation of pogestemon cablin still havet high nutrient content andpotential as a good raw material of organic fertilizer . Rapid composting technology and efficientorganic fertilizer will produce high quality compost. This study aim to determine the bestconditions in terms of fermentation time 6,10,14,18,22 day and volume of bacteria (EM4):2,4,8,10% EM4/solution were added to the N, P, K most in the process of making liquid fertilizerto use waste leaves the distillation of pogestemon cablin of N, P and K respectively 10.6% weight,1.19% and 3.08% heavy weight and the volume EM4 8% and the fermentation time of 14 days.Key words : pogestemon cablin, fermentation, ,liquid organic fertilizer, nitrogen,kalium, phospo

    KAJIAN PEMANFAATAN LIMBAH NILAM UNTUK PUPUK CAIR ORGANIK

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    Waste of the distillation of pogestemon cablin still havet high nutrient content and potentialas a good raw material of organic fertilizer . Rapid composting technology and efficient organicfertilizer will produce high quality compost. This study aim to determine the best conditions in termsof fermentation time 6,10,14,18,22 day and volume of bacteria (EM4): 2,4,8,10% EM4/solution wereadded to the N, P, K most in the process of making liquid fertilizer to use waste leaves the distillationof pogestemon cablin of N, P and K respectively 10.6% weight, 1.19% and 3.08% heavy weight andthe volume EM4 8% and the fermentation time of 14 days.Key words : pogestemon cablin, fermentation, ,liquid organic fertilizer, nitrogen,kalium, phospo

    PENURUNAN KOSENTRASI SURFACTAN PADA LIMBAH DETERGEN DENGAN PROSES PHOTOKATALITIK SINAR UV

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    Photokimia have used as by many alternative processing of water. Photokimia reaction is reaction of chemistry which is induction by light either trough indirect and also direct. Conversion ofr Energy light become chemical energy or electrics represent elementary principle of photokimia. To quicken reaction of conversion needed by the existence of catalis reffered as catalis system. Catalis will be active if obtaining light energy. In course of fotokimia will be formed by radical hydroxyl to degrade compound of organic underwater of waste like surfactant. The research dergradation of concentration surfactant used Titanium Dioxide catalis with light source the used is lamp of UV which variation of 15 watt, 30 watt and 36 watt. The objective of research to determine abilitry degradation of concentration of surfactant in waste of detergent. Result of research indicate that ability of degradation of be concentration use TiO2 counted 2,2 gr with result 96,5 %, time of radiating 2,5 hour and lamp energy 36 watt. Key words :Photokimia, Photokatalitik, Surfactan
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