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Project Overview

Project Number
M0122, M0208
Program Area
Project Theme
Strategic Foresight

Summary

Synthetic rutile production produces about 0.25 Mt/year of wastes.

The two major waste types are iron oxide waste and neutralised acid effluent waste. Glasshouse experiments showed that addition of 5-10% wastes to sandy soils greatly reduced leaching of fertilizer phosphorus and consequently increased plant growth by up to 60%.

Field experiments at five locations on the Coastal Plain, using ryegrass, clover and oats, demonstrated that addition of the wastes can increase the effectiveness of P fertilizers.

Keywords: synthetic rutile waste, soil ameliorant, fertilizer

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Page was last reviewed 30 October 2020

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