Coaltech Research Association

The Collection, Treatment and Utilization of Water Accumulated in the Coal Mines Located in the Upper Olifants River Catchment

by JP Maree, GJ van Tonder, AM van Niekerk and C Naidoo | March 2000

R1500,00

Description

Related Products

GJ de Korte

Collation of Historic Thermal Imagery

2008

Pilot exercise pulling scattered thermal survey datasets held by companies and research bodies into one mapping system, with a view to tracking coal fires and mine water discharge.

What this report foundExisting thermal imagery of the Witbank coalfield was traced to its holders and assessed for format, quality, resolution and coverage, then brought into one...

R1500,00

R1500,00

What this report found

Existing thermal imagery of the Witbank coalfield was traced to its holders and assessed for format, quality, resolution and coverage, then brought into one geographic information system with supporting metadata. Satellite thermal bands give a regional picture only; detailed mapping of coal fires or acid drainage discharge needs high resolution aerial surveys.

Agricultural Research on Rehabilitated Coal Mined Land (1994-2001) Conducted in Terms of the Kraai Van Niekerk Report

JL Schoeman

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

R1500,00

JL Schoeman

What this report found

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.

A technology to condition plants with adapted Rhizospheric soil/substrate bacterial species to improve vegetation resilience and growth on rehabilitated land

2024

Review and proposed method for using soil microbial communities to establish lasting vegetation on coal waste substrates where topsoil is scarce. For rehabilitation and closure practitioners.

What this report foundConventional rehabilitation relies on lime, fertiliser and compost to build fertility and select adaptive species, which produces short term cover but rarely a...

R1500,00

R1500,00

What this report found

Conventional rehabilitation relies on lime, fertiliser and compost to build fertility and select adaptive species, which produces short term cover but rarely a self sustaining ecosystem. The work argues for treating soil microbes as part of the system, since bacteria drive nutrient cycling, organic matter breakdown and soil aggregation, and proposes conditioning plants with adapted rhizosphere bacteria on coal waste substrates.

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