Polymorphism the existence of different crystal structures of the same compound is a problem in the pharmaceutical industry, because different polymorphs of the same drug may have different physical properties. Monitoring these subtle differences at each stage of a rigorous production process is a huge expense. Obtaining highquality crystal structures is not always possible or practical in thes...

Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence problems. Here, the initial borehole site investigation for the road was supplemented by resistivity tomography studies. The roadway was reinfor...

The filling mining method is important in realizing the green of mineral resources. Aiming at problems land resource occupation, environmental pollution, and rational utilization coal-based solid wastes such as coal gangue, fly ash, desulfurization gypsum, a new paste material was developed with gypsum raw materials. microstructure materials analyzed by XRD SEM. Combined Box-Behnken experimenta...

Abstract China’s thermal power plant wet FGD (flue gas desulphurization) produces more than 80 million tons of gypsum each year. The factors affecting the quality desulphurization are limestone quality, flue dust, slurry pH, water content, system design features, and operating conditions, etc. There many reasons for high moisture analysis solution particularly complex. Through a case with conte...

Please cite this article in press as: Brinck, E., Fr doi:10.1016/j.apgeochem.2009.09.001 Gypsum and S are applied to soils being irrigated with Na–HCO3 dominated coalbed natural gas (CBNG) produced water to protect soil structure and fertility. Wyoming law requires beneficial use of produced water and irrigation with CBNG produced water in the semi-arid Powder River Basin is becoming more commo...

Consistent use of high RSC water may deteriorate the physical properties of soil and increases pH and SAR of soil. Continuous use may reduce germination / the establishment of seedling, retards plant growth and leads to a significant reduction in yield. Therefore, a field experiment in microplots was displayed at research plot in St. John’s College, Agra to study the effect of sodic water on th...