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INDONESIA
Jurnal Kimia dan Kemasan
Published by Kementerian Perindustrian Republik Indonesia
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Chemistry
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Articles 4 Documents
 1 
Search results for , issue "BULLETIN PENELITIAN VOL. XX NO. 2 AGUSTUS 1998" : 4 Documents clear
Studi Pencemaran Udara Oleh Kendaraan Bermotor D Karyadi
Jurnal Kimia dan Kemasan BULLETIN PENELITIAN VOL. XX NO. 2 AGUSTUS 1998
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3950.032 KB) | DOI: 10.24817/jkk.v0i0.5141

Abstract

Componen of air pollution from transportation consist of: CO, Nox, Sox, HC, paticles and Pb Br 2. Based on the result, of sawyer Research CO was formed at ER > 1, while NO was formed at ER < 1. Beside that sawyer also found that the combustion at low temperature, CO decreasing and prevented to form NO.For decreasing air pollution we must arrange the comparation of air and fuel. The other side we must also effort a good maintenance of machine and step by step to test the emission gas from the automobile. TEL additive must be subtituted with the other additive that it does not pollution.
Dampak Klorofluorokarbon Terhadap Lingkungan Hidup Sumingkrat Sumingkrat
Jurnal Kimia dan Kemasan BULLETIN PENELITIAN VOL. XX NO. 2 AGUSTUS 1998
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4351.313 KB) | DOI: 10.24817/jkk.v0i0.5142

Abstract

As the first step in tackling environmental issues related to the protection of the ozone layer have been reviewed internationally. In Indonesia under the "Law concerning the Protection of the Ozone Layer by Means of Regulation on Specified Substance", regulations on the production and importation of controlled CFCs have been enforced since March 1991. The problems with CFCs are primarily environmental. CFCs destroy the stratospheric ozone layer that protects people from harmful ultraviolet rays from the sun. Already, holes and breaks in the ozone layer are apparent to scientists. Without the ozone layer's protective shild, skin cancer and eye damage are more likely among people,and the marine food chain could be profoundly disrupted. In addition, CFCs are responsible for about one-fifth of the greenhouse gases emitted into the atmosphere every year.
Efisiensi Beberapa Macam Alat Dewatering Untuk Pengelolaan Lumpur Industri Elektroplating Sri Pudji Rahayu; Dwinna Rahmi; Ukar Tarwiyono
Jurnal Kimia dan Kemasan BULLETIN PENELITIAN VOL. XX NO. 2 AGUSTUS 1998
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2449.009 KB) | DOI: 10.24817/jkk.v0i0.5139

Abstract

Many methods for dewatering of sludge, such as natural evaporate by sun or by means of equipment. Three kind methods of electroplating sludge dewatering by using equipment hare been studied, i.e : centrifugal, filter press and vacuum filter. The result shows that centrifugal has the best performance in term of reduction speed of sludge weight, moisture content of dry cake, and also time. The use of coagulant, thickener and polymerin dewatering can increase flock formation , therefore can accelerate the process. Coagulant addition is necessary in dewatering by using centrifugal method.
Penelitian Kemasan Kripik Singkong Susmirah Suryandari
Jurnal Kimia dan Kemasan BULLETIN PENELITIAN VOL. XX NO. 2 AGUSTUS 1998
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3910.579 KB) | DOI: 10.24817/jkk.v0i0.5140

Abstract

The plastik material have been used on the research of casava chip packaging. Three kinds of plastic packaging material were used, i.e. polypropylene, polyethylene and polystyrene. The key parameter evaluated are global migration (by using aquadest, acetic acid 4 %, ethanol 20 % and n-heptana) and equilibrarium moisture content at the difference humidity, time andthickness. The migration process is influenced by temperature, contact time, aqueous stimulant and the kind of plastic material. The result shows that 0, 08 mm polypropylene plastic bag is more suitable for casava chip packaging than the other materials. In this case, two conditioan of the global migration of polypropylene plastic are 0,9625 mg/dm' (at. 95 °C, 2 hours, 50 mlaquadest) and 0,425 mg/dm' (at 40 °C, 30 minutes, 50 ml aquadest).

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