Fly Ash (FA) from a power station in South Africa was investigated to neutralise and remove contaminants from Acid Mine Drainage (AMD). After this primary treatment the insoluble FA residue namely solid residue (SR) was investigated as a suitable mine backfill material by means of strength testing. Moreover, SR was used to synthesise zeolite-P using a two-step synthesis procedure. Furthermore, ...

Every year, the Consortium for Mathematics and its Applications (C C C OMA OMA OMA P P P) sponsors the Mathematical Contest in Modeling (MCM), an international contest for undergraduates. We will discuss our strategy for developing models, writing the paper, the contest timeline, and team dynamics. 1 What is the MCM? In the MCM, three-person teams are given 96 hours to develop mathematical mode...

The efficacy of direct methods for solving the crystal structures of zeolites from electron diffraction data is evaluated for a series of related materials, i.e. MCM-22, MCM-49 and ITQ-1. First, it is established by tilting experiments that all materials share the same MWW framework. The calcined product of a delaminated MCM-22 precursor, ITQ-2, also shares this framework structure within the l...

Abstract This work aimed at treating OMW by developing an environmentally friendly and cost-effective media capable of removing phenolic compounds upon the interaction between magnetic nanoparticles sorbent material such as zeolite. Magnetite (Fe 3 O 4 ) goethite (FeO(OH)) were prepared using microemulsion method dimethylene-1,2-bis (dodecyl dimethyl ammonium bromide) (CTAB) a surfactant. The h...