Coaltech Research Association

R1500,00

Description

Related Products

Stockpiling of Coal Mine Soils

Dr Garry P aterson

2016

Physical, chemical and microbiological analysis of 257 unmined, stockpile and rehabilitated soil samples from four Witbank opencast mines, plus a pot trial on amendments, for soil handling planning.

What this report foundStockpiling degraded every soil property measured across four Witbank area mines. Clay content of topsoil and subsoil rose by 50 to 60 per cent, surface bulk...

R1500,00

R1500,00

Dr Garry P aterson

What this report found

Stockpiling degraded every soil property measured across four Witbank area mines. Clay content of topsoil and subsoil rose by 50 to 60 per cent, surface bulk density increased from stockpiling through to rehabilitation, and effective depth on rehabilitated areas was under 17 cm in most cases. Topsoil organic carbon fell by almost half and microbial species numbers dropped in the stockpiles.

Grant van Heerden

Wetland rehabilitation with Dongalock shutters

2021

Two field trials, one on a mine affected wetland and one on an undisturbed site, both built by community members, plus a desktop comparison against engineering and cost criteria.

What this report foundCompared against concrete and gabions on cost, construction time, footprint, durability and safety, the Dongalock product proved cheaper and quicker to install...

R1500,00

R1500,00

What this report found

Compared against concrete and gabions on cost, construction time, footprint, durability and safety, the Dongalock product proved cheaper and quicker to install in small and medium incised valley bottom wetlands, and needs no heavy plant, so local enterprises can build it. Concrete still suits large wetlands carrying high water velocities.

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