Recycling & repurposing of Gypsum waste for use in agricultural and horticultural sectors.

This system eliminates the need for gypsum and plasterboard waste to go to landfill. It can provide in excess of 95% recovery of gypsum waste stream while resolving the issues of high moisture content and contamination to achieve a very high quality product, sized to the customer’s requirements. This allows the product to be re-used thus reducing pressure on raw material resources and environmental impact of mining operations. Recycled gypsum can be used as a soil fertiliser (calcium sulfate) which improves soil structure and creates oxygen conditions which are essential to improve soil and plant health. It improves the ability of soil to drain and not become water logged. Increased water use efficiency of crops is important during a drought. Gypsum helps to keep phosphorus and other nutrients from leaving fields. The use of this mineral is an economic way to cut run off pollution of phosphorus. Adding gypsum to the soil reduces erosion by increasing the ability of soil to soak up water after precipitation. Gypsum application also improves soil aeration and water percolation through the soil profile. Gypsum is an important ingredient in the compost used for growing mushrooms commercially. In Powder form, it is used to adjust the pH in mushroom growing media such as grain, sawdust, straw and coffee grounds. Adding calcium carbonate and sulfur helps to stabilize PH levels to near neutral so it acts as a PH buffer as well as adding minerals which are vital for fruiting.