Development of a Risk-based Computer Database to Prioritise the Environmental Rehabilitation of Defunct and Abandoned Collieries
R1500,00
Description
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Agricultural Research on Rehabilitated Coal Mined Land (1994-2001) Conducted in Terms of the Kraai Van Niekerk Report
2001
Consolidated review of six field studies on highveld opencast rehabilitation, covering soil profiles, pasture performance, crop potential and soil water, for mine environmental staff and regulators.
What this report foundRehabilitated opencast soils carried pastures and cash crops, but compaction and cover soil depth set the ceiling on what they could produce.
R1500,00
Rehabilitated opencast soils carried pastures and cash crops, but compaction and cover soil depth set the ceiling on what they could produce. Only land with deep cover soils suited maize and sunflower, and deep ripping with regular tillage was needed. Bulk density standards were not met at the trial sites, which the review judged enough to have changed the results.
Project 2.9.6 Preventing Cutting Head Methane Emissions On Continuous Miners
2020
Simulation work on face ventilation in mechanised coal sections, with methane sources modelled from the cut face, gathering arms, conveyors and shuttle cars. For ventilation engineers and equipment manufacturers.
What this report foundComputational fluid dynamics, checked against underground measurements, mapped ventilation flow and methane concentration around continuous miner headings for...
R1500,00
Computational fluid dynamics, checked against underground measurements, mapped ventilation flow and methane concentration around continuous miner headings for straights and splits, single and double scrubbers, side and straight scrubber discharges, jet fans, brattices and force columns. It showed the earlier physical test work cannot predict contaminant flow for larger machines or altered scrubber layouts.