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首页> 外文会议>International Congress on Water Management in Mining >(Chapter8)Treatment of Water and Effluents with Clean Oxidants for Use, Reuse and Discharge
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(Chapter8)Treatment of Water and Effluents with Clean Oxidants for Use, Reuse and Discharge

机译：（第8章）用干净的氧化剂处理水和流出物，用于使用，再利用和放电

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摘要

The possibility of treating plant effluents for the main purpose of recycling, as well as external reuse as irrigation water or discharge into rivers, is a matter of growing interest to the mineral/metallurgical industry. In the present paper we discuss the importance of employing clean oxidants such as O_2, H_2O_2, O_3, and active oxygen species HO* and 1O_2 for the treatment of waters with the objective of in-plant recycling. Such class of clean oxidants do not leave residuals other than H_2O and O_2 in the treated waters or effluents; hence do not contribute to the building up of extraneous elements in closed hydric circuits. Other chemicals that aid in achieving neutralization, precipitation, and controlling treatment process variables, chemicals such as Fe sulfate, calcium hydroxide (lime)and sodium hydroxide may have to be employed in conjunction with oxidants, and their doses have to be minimized in order to limit build up of added elements in the closed circuits. Examples of performance of clean oxidants are presented for the oxidative treatment of cyanides and sulfide in effluents; and removal of elements Cu, Fe, Mn, and As by precipitation.
机译：用于治疗植物污水的可能性，以主要目的回收，以及作为灌溉水或排放到河流的外部重用，是矿产/冶金工业越来越感兴趣的问题。在本文中，我们探讨了使用清洁氧化剂如O_2，H_2O_2，O_3和活性氧物种HO *和1O_2的重要性，以便在植物中回收的目的进行水。这种类别的干净氧化剂不会在处理过的水或流出物中留下H_2O和O_2以外的残留物;因此，在封闭式液态电路中没有贡献建立外来元素。有助于实现中和，沉淀和控制处理过程变量，例如Fe硫酸盐，氢氧化钙（石灰）和氢氧化钠的其他化学品可能必须与氧化剂一起使用，并且必须最小化它们的剂量以便限制封闭电路中添加元素的建立。清洁氧化剂的性能的实例用于氰化物和硫化物在流出物中的氧化处理;并除去元素Cu，Fe，Mn和沉淀。

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