Penambangan batubara merupakan komponen berpengaruh dalam menunjang ketersediaan energi yang umumnya dilakukan secara terbuka (open pit) sehingga terbentuknya air asam tambang. Logam berat yang ter…
This research compares the methods of iron metal analysis Fe2+ ions using visible spectroscopy and concentration cell potentiometry. The visible spectroscopy method needs to be verified, and the po…
This study aims to analyze the influence of dimensions in the manufacture of artificial aggregates made from fly ash using heating techniques. This aggregate is made by combining several other mate…
The research about the effect of metal ratio influence Co/Mo to porosity and acidity of Co/Mo-Ti02 pillared montmorillonite catalyst had been done. Natural montmorillonite was modified with the pii…
The transformation of chitin from snail shell to chitosan and the separation of cellulose acacia mangium wiild has been done. The transformation and separation product was characterized using FT-IR…
Pasir besi merupakan logam yang paling banyak kedua di bumi. Pasir besi terbentuk selama berjuta tahun lamanya, sehingga kandungan yang terdapat di dalam pasir besi pun beragam, seperti mineral mag…