نتایج جستجو برای: phosphate mine
تعداد نتایج: 128027 فیلتر نتایج به سال:
Here, the co-managment of municipal wastewater (MWW) and acid mine drainage (AMD) is proposed, where recovered low-value phosphorus from MWW used for treatment AMD. Specifically, was treated using calcium hydroxide (Ca(OH)2), a low-cost readily available material, with ammonia content being greatly reduced (89%) through stripping phosphates practically eliminated (>99%). The in form phosphate (...
The development of fractures and conduits in karst aquifers the strength their water richness are key factors determining whether a intrusion will occur mine. In phosphorus mining process, if water-rich areas is carried out, sudden disasters can easily occur. Therefore, water-richness zoning aquifer on roof phosphate mine very important to protect against incidence This paper proposes random-fo...
In the world demand and consumption of raw materials minerals is sharply increasing, which has encouraged countries around to intensify mining different ores such as phosphate. Algeria, while phosphates are one country's most important natural resources; they ranked third in terms proven reserves with 2,200,000 tones, this ore low. The Bled El Hadba deposit promising Djebel Onk’s deposits 841 m...
Sulfur, organic matter, and inoculation with sulfur-oxidizing bacteria are considered as amendments to increase the availability of phosphorus from rock phosphate. The present study was conducted to evaluate the best combination of sulfur, vermicompost, and Thiobacillus thiooxidans inoculation with rock phosphate from Yazd province for direct application to agricultural lands in Iran. For such ...
The Boundary Element Method has been applied to calculate stress distribution and stability of underground mines for disposal of chemical waste. A case similar to the Stripa mine in Sweden has been considered. The rock mass was granite, with major fracture zones represented by three families of planes mutually orthogonal and 100 meters distant from each other. The pre and post processor GiD [3]...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید