Khitosan adalah produk yang dapat diasetilasi dari khitin, dan banyak terdapat di alam. Khitin diisolasi dari limbah kulit udang yang merupakan polimer alam yang mempunyai struktur mirip dengan selulosa. Khitosan ini bersifat hidrofilik dan…
The effect of engine loading on emission of particulate matter was studied by using an Otto engine (Honda astrea grand 110 cc). In the experiment, the characteristics of loading engine, fuel consumption and composition of particulate matter were…
One of the alternative utilization of pineapple peel waste is to convert them to lactate acid via fermentation. This research is aimed to obtain better understanding on the growth of lactate bacteria (Lactobacillus plantarum) by varying substrate…
Industri kecil minyak nilam di Nanggroe Aceh Darussalam tersebar di beberapa kabupaten yaitu Aceh Barat, Aceh Selatan, Aceh Jaya, dan beberapa daerah lainnya. Namun perolehan dan mutu minyak nilam yang dihasilkan masih tergolong rendah karena warna…
Dumping grounds are characterized by the absence of engineering controls such as base liners and cover layer. Consequently, these dumping grounds present risks for surrounding resources such as soil, groundwater and air. The concern for groundwater…
The loading of gold using strong base anion exchange resin in non-ammoniac resin-solution (NARS) systems has been studied. The loading of gold onto ion exchange resins is affected by polythionate concentration, and trithionate can be used as the…
A comparative study of Model Predictive Control (MPC) using active-set method and interior point methods is proposed as a control technique for highly non-linear pH process. The process is a strong acid-strong base system. A strong acid of…
Studi pembuatan cat tembok emulsi menggunakan bahan pengisi kapur sangat potensial untuk dikembangkan karena ketersediaan kapur yang banyak di alam. Cat tembok emulsi telah dibuat dari campuran bahan pengisi, bahan pengikat, pigmen, pelarut, dan…
Study on the use of copper zinc oxide supported on alumina catalyst for steam reforming of methanol to hydrogen has been done. The aim of this work is to study the catalytic properties of copper based catalysts used in the steam reforming of…
Wetting phenomena plays a crucial role in a wide range of technological applications. Spreading of liquids on solids involving phase change is encountered in many areas ranging from biological systems to industrial applications such as coatings,…