Abstract Red mud, a by-product of alumina production, has great impact on the environment due to its high alkalinity. In this paper, two-part geopolymer mortar was synthesized by combining red mud and blast furnace slag (BFS) obtain optimized compressive strength flexural for construction materials. Geopolymer concrete prepared with cementitious material in replaced mortar. Mechanical propertie...

The state of Para is one the greatest producers mineral substances in Brazil. Kaolin for paper coating industry and bauxite alumina aluminium production are amongst most important commodities. latter responsible generation red mud, a well-known residue from Bayer process. kaolin processing plants also large amounts wastes, this case, very fine-grained kaolinite (white mud). research aimed to fi...

Red ultra-compact massive galaxies, called red nuggets were formed at high redshifts ($\rm{z\sim2-3}$). Survivors of nuggets, known as relics, observed lower ($\rm{z<2}$) are believed to remain almost unchanged since their formation. For the first time, we verify environmental properties intermediate redshift ($0.5<\rm{z}<0.9$ ) using 42 red, ($\rm{log(M_{star}/M_{\odot}) \geq 10.9}$) and ($\rm...

Adsorption kinetics for removal of arsenic was carried out by red mud and its mixtures with haematite, china clay and fly ash besides china clay-fly ash at: adsorbate conc., 5.0 mg1; particle size of adsorbent, <53 μm; agitation rate, 220 rpm; pH, 8.0; and temp., 30, 40 & 50°C. Data fit into Lagergren equation and adsorption follows first order reaction kinetics. As(III) removal by adsorbents i...

polyanionic cellulose polymer is used as an additive in drilling mud in order to decrease water loss and mudcake- thickness. in this study effect of bulk and nanosize polyanionic cellulose on water loss and mud-cakethickness in mud drilling is investigated. polyanionic cellulose nanoparticles are made by using of ball milling. size of nanoparticles is measured by particle size analyzer. polyani...

We conducted an aquatic macroinvertebrate assessment in the channelized reach of the lower Missouri River, and used statistical analysis of individual metrics and multimetric scores to identify community response patterns and evaluate relative biological condition. We examined longitudinal site differences that are potentially associated with water quality related factors originating from the K...

Red mud is a potential iron resource that needs to be urgently exploited and utilized. However, due the properties of high alkalinity, fine particle size complex mineral composition, utilization red difficult. Focusing on mud’s prominent feature this paper studies influence NaOH content reduction kinetics hematite, which main component mud. The results show conversion degree hematite was strong...