The demand for dry food and herbs is very high in the country. Most dried foods and herbs are exposed to bacteria during the drying process. To ensure the safety of dry food and herbs from being exposed to bacteria a heat house is needed. The Rumah…

Coagulation and flocculation play the most important part of water treatment, these processes involve the removal of unwanted contaminants and materials by adding in a chemical coagulant, which will chemically be reacting to the unwanted…

These days, water filtration method commonly uses chemically made substances. This could be harmful and the sources are limited. Activated carbon that is used in water filters are made from charcoal. Charcoal is non-renewable and has only a finite…