BetterBuildingPartnerships Strip Out Waste Guidelines in Consultation Waste Guidelines Link The Better Buildings Partnership has developed the BBP Strip Out Waste Guidelines to assist tenants, building owners and demolition contractors in the procurement and execution of best practice strip out operations. These guidelines include a number of practical tools that can be utilised to procure manage and evidence consistent strip out processes that maximise recovery without compromise to timelines or safety. These guidelines draw on BBP’s extensive expertise, that of its partners and suppliers, and learnings from recent case studies conducted in Sydney with support from Edge Environment and the EPA’s Circulate, Industrial Ecology grants program, that demonstrate that resource recovery of 60-80% is both highly desirable and achievable. BBP members have committed to implementing these guidelines and recovery targets, and are including the principles of these guidelines in their tender processes. Strip out waste industry stakeholders are encouraged to acquaint themselves with this guideline.
REGYP is continually upgrading its plants to increase capacity, quality and service.
The Sydney plant has been upgraded in the last few weeks to increase production capacity by upto 50%.
Not only will this enable us to keep up with demand, but it will also enable the site to go back to offering specialty products and blends as well as concentrate more on natural minerals and fertilisers like the QLD operations.
A beautiful looking Canola crop near Forbes NSW, which had REGYP’s Super Ag Gypsum applied before sowing.
The gypsum was applied at 1.0 tonne per hectare.
REGYP Recycled Gypsum products meet the not only the domestic EPA criteria in Australia but also adhere to the only recognised standard developed for the industry UK PAS109:2008.
PAS 109:2008, Specification for the production of recycled gypsum from waste plasterboard, provides guidance for when the waste material is reprocessed into quality gypsum.
The adoption of the standard enables plasterboard recyclers to advertise that their recycled gypsum is of a high quality and will also help to instil confidence in those who buy it – thereby driving growth in existing markets and assisting in the development of new ones.
Gypsum recycled from waste plasterboard is already used in a range of applications ranging from the manufacture of new plasterboard to the production of cement and for soil treatment in agriculture. In Australia the quality of recycled gypsum can be up to 30% more pure than some of the agricultural gypsum mine products. Containing more calcium and sulphur per tonne and in a more soluble and easily spread form.
Gypsum is used to stabilise dispersive soils on dam embankments so that both surface erosion and potential tunnelling and piping failures are reduced. A ﬁne-grained gypsum is preferable because it is more soluble.
Piping or tunnelling occur through a dam wall or embankment when water seeps along a line of weakness (ie crack in dry clay material) creating a pip or tunnel. This can lead to rapid loss of water stored above the pipe.
The gypsum is generally mixed into the ﬁrst 150–200 mm of surface soil at up to 2% (about 2-8 kg/m2) , and then the treated area is compacted with a roller. Remember, dry soil will not compact well. Good compaction can only be achieved with a soil near its optimum moisture content (seek civil engineering advice).
Bentonite is a naturally occurring clay which is commercially mined. In dam building it is useful because, when it is wet, it swells to many times its dry volume.
Bentonite may be used in several ways depending on the soil type on site and whether it is practical to empty the dam. On light or loam soils a mixed blanket is worked into the soil. On heavy soils, a pure blanket would be required (similar to a clay lining). In both cases the dam would need to be emptied and allowed to dry.
A third option, which is hit and miss, would be to broadcast the bentonite on the water surface.
In two successive field CSIRO trials at Deniliquin, NSW, irrigated grain sorghum was sown at three rates of gypsum (0, 2, and 4.1 tonne per acre), and four rates of phosphorus application (0, 11, 23, and 45 kg per acre) on Billabong clay, a brown clay commonly found on the Riverine Plain of south-eastern Australia. There was a significant response to broadcast gypsum spreading in terms of seedling emergence, tillering, and panicle production. Furthermore, there was a positive interaction between gypsum and phosphorus response which was clearly demonstrated by the yield of total dry matter and grain in the first year. Although there was a response to phosphorus in the absence of gypsum, the more effective use of phosphorus on the gypsum treatments, particularly at the higher rates of fertilizer application, was attributed to improved soil water storage. In the second year, the residual value of applied gypsum was greater following application at 4.1 tonne per acre than at 2 tonne per acre during the previous year. Residual phosphorus had little effect in the year following application.
CSIRO Abstract – Australian Journal of Experimental Agriculture and Animal Husbandry 11(48) 53 – 58, JC Noble and CR Kleinig
REGYP is located at stand 302 at this years Toowoomba AgShow event.
After some post sowing rain and buoyant pricing forecasts for canola the season looks promising.
Bullish forecasts of $555/t (Port Adelaide) have been published.
Canola sowing in the central and south west NSW areas prominent.
DPI forecasted planting for canola in April 548,000 ha and May 668,500 ha.
Other crop forecasts where:
Wheat April 3.05m ha, May 2.94m ha,
Chickpeas April 229,000 ha, May227,000 ha,
Barley April 694,000 ha, May 646,000ha
Sulphur is an important nutrient for optimal plant growth; it is one of the key macroelements essential for plant growth. Sulphur is taken up from the soil solution by the plant in the sulphate form (SO4^2-).
In the plant sulphur is a component of methionine, cysteine and cystine, three of the 21 amino acids which are the essential building blocks of proteins.
Animals need to consume methionine in their diet as they cannot manufacture it themselves; methionine is essential for dairy cattle in particular.
Sulphur is also a component of key enzymes and vitamins in the plant and is necessary for the formation of chlorophyll.
In legumes sulphur is necessary for the efficient fixation of nitrogen by the plant.
This makes sulphur of fundamental importance in the establishment and maintenance of legume-based improved pastures. It is also essential for flowering and seed set in canola.
Plants which are deficient in sulphur show a pale green colouration of younger leaves first as sulphur is not very mobile in the plant. In severe cases of sulphur deficiency the entire plant can be stunted and pale green.
Affected plants maybe thin-stemmed and spindly; brassica and canola crops may develop a reddish colouration on the underside of leaves and on stems, and flowers may be pale to greyish in colour.
If your soil test shows your require sulphur, gypsum maybe the most cost effective source of sulphur.
Sulphur can be removed from soil through uptake by plants, leaching through and out of the root zone by rainfall or irrigation, and by volatilisation. Sulphur can be transformed from one form to another in the soil through various biological and physical processes. This movement in and out of the soil between different chemical forms in the soil is known as the sulphur cycle.
The main ways sulphur is removed from pastures and soils is through leaching out of the root zone of plants and by ingestion of pasture by grazing animals. Leaching is the process whereby water, in the form of rainfall, flood waters or irrigation, is flushed through the root zone. This flushing process takes with it dissolved nutrients so that they become unavailable to plants through normal root uptake.
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