The effectiveness of the absorption of activated rice husk and hazelnut shells on the
purification of used cooking oil has been carried out. The aim is to determine the absorption …

The global prevalence of heavy metal contamination presents formidable challenges to both
environmental integrity and human health, underscoring the critical need for the …

Clean water is one of the human's main needs. Dug well water in Tombang, used for various
needs. However, the dug well water has been polluted by E. Coli bacteria which is …

Research on the comparison of the effectiveness of the adsorption power of rice husk and
the hazelnut shell of the ferrous metal (Fe) in the dig well water has been done. The …

Electrodeposition of Cu on the surface of silica free rice husk activated carbon with
ultrasonic irradiation aimed to increase the value of specific capacitance was carried out …