Abstract West Sumatera is a region that has an abundance of natural resources in the form iron sand, one which area Pasia Jambak Beach, Padang. Beach type beach rumps and sandy beaches, grayish-brown sand rough grains on its surface. Iron could be formed due to weathering rocks materials found around coast, such as old ships others. This study aims see rock origin composition magnetic mineral e...

Biochar is a solid material formed from the carbonization of biomass. result conversion organic waste by using incomplete combustion method with limited oxygen supply (pyrolysis). Meanwhile, rubber scrap production crumb has not been utilized much other than as mixture fertilizer in soil. This study aims to analyze effectiveness biochar peat water filtration media and effect thickness on remova...

Abstract Industrial processes are the main generator of littering agents, and growing environmental awareness has contributed to a focus on issue littering. One biggest issues in world is how manage this waste given limited space available, high cost remediation, need for landfilling. However, idea reusing some an alternative solution decreasing process landfilling, reducing increase waste. In ...

A new regulation has been proposed that would lower the acceptable level of arsenic in drinking water from the current standard of 50 ppb. Therefore, research into effective arsenic removal treatment is important, especially for hard to treat waters with high concentrations of silica. The first phase of research was designed to determine if sand ballasted coagulation is a viable means of removi...

Iron oxide occurs as a dust in many industries apart from iron-ore mining. It is found in silver polishing, electric welding, and boiler scaling, as well as in the more obvious metal grinding, fettling, and blast furnace working where it may be mixed with varying amounts of silica. Some still consider iron oxide a harmless dust (Baldi, 1952) while others think that, like coal, it can produce ch...

Ultra-High Performance Concrete (UHPC) is a new generation of concrete characterized by its high strength, durability, and stiffness. Autogenously shrinkage represents one the issues UHPC that occurred at early ages. It occurs particularly during first 48 hours after casting. This paper focuses on ways can be depended to mitigate autogenously obtain outstanding mechanical properties UHPC. The r...

Recently, 3D printing technology has become more popular in the field of construction. For extrusion-based concrete (3DCP) process, cementitious material needs to be strong and flowable enough ensure buildability pumpability. Nanostructured silica, a kind additive, been used modify 3DCP meet these requests. However, most previous studies focused on effect nanostructured silica rheological prope...