Construction Waste is Used by Crusher Equipment

A recent article by reporter Mike De Souza has the headline Oilsands tailings leaking into groundwater, Joe Oliver told in memo. De Souza does a great job of linking to original sources. Who wouldn't love to know the contents of a secretive sounding 'internal memo' related to the oil sands? The news is more exciting than the science, but any new data on the oil sands is politically charged.
In general, tailings is the ore mined in the metal or nonmetal mines, and the 'residue' discharged by the concentrator after electing the concentrates refers to the ore which is not suitable for further sorting in the current economic and technical conditions. As a rule, mine production and mineral processing companies must build corresponding scale tailing pond. However, with the enterprise production progress speeds up, tailings production is more and more; thus, the number of tailing pond is also rising. As the country increases environmental protection efforts and the philosophy of environmental protection continue to be deeply rooted, how to properly handle the tailings produced in the process of mineral resources development and then realize the comprehensive utilization of resources are the primary issues which the mining enterprises should first consider. With the development of production technology, it is clear that the tailings is not completely useless, on the contrary, the tailings is often contains the components that can be used for other purposes and then realize comprehensive utilization. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like stone jaw crusher, Henan Hongxing is always doing the best in products and service.hoist conveyor: http://www.crusher-machine.com/n235.html
Our country is rich in resources, developing and utilizing the tailings accumulated in long time not only can change the environment but also improve economic benefit. The comprehensive utilization and changing 'waste' into valuable are both trend and prospects. Turning tailings into construction materials embarks on the road of recycling waste materials and then comprehensive utilization. In the broad prospects of the tailings recovery, Hongxing will actively provide you with complete set of sand production line and help you to open up more wealth
The metals don't seem to be going anywhere so the main nasties in question are a class of compounds called napthenic acids (NA). They concentrate in oil sands process water because that water is continually re-used. By analyzing acid extractable organics, the scientists were able to characterize the origin of napthenic acids. To quote the study, 'Acid extractable organics (AEO) containing classically defined NAs represent a diverse class of organic compounds that are very difficult to characterize chemically.'
Mining-derived AEO concentrations between 7.3 and 14.1 mg/L in groundwater at approximately 1.6 km down-gradient from the edge of the tailings pond are relatively high compared to the ambient level of less than 1 mg/L for groundwater in the glacio-fluvial aquifer of the studied area. This observation suggests that, on a local scale, groundwater contamination with mining-related AEO may be an issue.