Fish is a food material that has high protein content, which cause fast decay by microorganism. Because of that, it needs a preservation process. One of preservative material used is formaline. Formaline is a chemical ...

The study aims to biosynthesis of silver nanoparticles using extract of Zingiber officinale rhizome. This methode was performed by reducing AgNO3 at room temperature in 45 hours with secondary metabolites of extract rhizomes. ...

The effect of burnt on structure and component (calsium, magnesium, sulphate and total C/N) in peat swamp soil was investigated in the Pakning Asal of Bengkalis. The analysis were conducted on the burnt and unburnt soil ...

In recent years, adsorption is one of the most successful approaches that has been utilized to efficiently remove dyes from industrial wastewater among numerous physical and chemical wastewater treatment technologies. ...

The laundry industries increases water pollution in the form of phosphates which is the main substance in detergents. The high phosphate content can lead to eutrophication. The processing waste that is practical and ...

Methylene blue is an organic dye that is widely used in various industries such as textile, paints, plastic and pharmaceuticals. Methylene blue is very stable so it is very difficult to degrade in nature and harmful to ...

Composite is a material composed of two or more materials with different phases, namely a matrix and filler. The composite used in this research of natural rubber latex as a matrix, activated charcoal from mahoganiy fruit ...

Cockle shell has been usually used as craft materials, while the rest was discarded as waste. This shell contains 97% of CaCO3, which recognized as an adsorbent in the ash form. This ash was produced via calcination step ...

Avocado seeds was investigated as adsorbent in powder form and activated with variation of sulfuric acid concentration 2.5, 5.0 and 7.5%. The characterization result showed that activation of avocado seeds powder with ...

The ability of azolla (Azolla pinnata) was tested as phytoremediator for lead, cadmium and chromium in simulation solution. The plants was grown in a glass reactor containing 25 mg/L of lead, cadmium and chromium solution ...