UIS Analytical Services will close on Friday 23 December at 12h00 for a year-end break, and will re-open on Tuesday, 3 January 2017, at 07h30.
We thank all our valued customers for their support through an amazing 2016, and we look forward to engage with you on the road through 2017. We also wish you a peaceful break over the ear-end, filled with rest and season blessings.
Need help with waste analysis?
Recently new legislation was introduced which has placed more focus on ensuring stockpiles, mine dumps and general waste management are environmentally complaint.
With effect from 24 July 2015, the establishment and reclamation of mine dumps and stockpiles of mining waste from or incidental to a mining operation, must comply with new regulations regarding the planning and management of residue stock piles and residue deposits from a prospecting, mining, exploration or production operation (Mining Residue Regulations) published under the National Environmental Management: Waste Act 59 of 2008 (NEM: WA).
The implications of the new regulations furthermore are that stockpiles must comply with landfill requirements and also comply with the National Norms and Standards for the Assessment of Waste for Landfill Disposal, 2013; and National Norms and Standards for Disposal of Waste to Landfill, 201.
Chemical composition of the coal is defined in terms of its proximate and ultimate (elemental) analyses.
The parameters of proximate analysis are moisture, volatile matter, ash, and fixed carbon. Elemental or ultimate analysis encompasses the quantitative determination of carbon, hydrogen, nitrogen, sulfur and oxygen within the coal.
UIS Analytical Services can assist you with your proximate and ultimate analysis needs.
The calorific value Q of coal [kJ/kg] is the heat liberated by its complete combustion with oxygen. Q is a complex function of the elemental composition of the coal. Q can be determined experimentally using calorimeters. Dulong suggests the following approximate formula for Q when the oxygen content is less than 10%:
Q = 337C + 1442(H - O/8) + 93S,
where C is the mass percent of carbon, H is the mass percent of hydrogen, O is the mass percent of oxygen, and S is the mass percent of sulfur in the coal. With these constants, Q is given in kilojoules per kilogram.