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Cleaner Production Technology and Application on Wet Process Smelting of Rare Earth Mine

Author: BaoYiFan
Tutor: ZhaoJi；JiJingZuo
School: Inner Mongolia University
Course: Environmental Engineering
Keywords: Rare earths Clean Production Hydrometallurgical Discharge standards Environmental benefits
CLC: X756
Type: Master's thesis
Year: 2010
Downloads: 152
Quote: 1
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Abstract


Thesis Baotou Huamei Rare Earth Hi-Tech Co., Ltd. , for example , the source of governance to adopt cleaner production processes , using advanced \concentrated sulfuric acid and the production of cryolite , and can be recycled ; governance of the high-temperature roasting exhaust spray acidic wastewater , rare earth sulfate feed solution directly fishing transformation of production process to produce mixed rare earth chloride , carbon sodium precipitation carbon Shen , from production process does not introduce the production of ammonia nitrogen pollutants eliminating ammonia nitrogen contamination in the wastewater ; separation line of deep processing of ammonium chloride wastewater treatment , ammonia engineering , can not only reduce the emissions of the wastewater , and can be a byproduct ammonium chloride ; roasting kiln fueled by gas , clean energy alternative to control the generation of pollutants from the source . After the implementation of cleaner production projects , production technology and production equipment Habitat advanced level in the domestic waste water , waste gas produced by the production process has been effective governance after discharge standards , reasonable disposal of hazardous waste in the process , not only to mitigate as much as possible on the environment pollution clean production , and reduced the total emissions of the whole plant . Clean production Baotou Rare Earth Industry as a true masterpiece strong recycling economy development model will lay an important foundation to realize the coordinated development of industrial progress and environmental protection goals .

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > Mining, metallurgical industry,waste disposal and comprehensive utilization > Metallurgical Industry
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