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发明公开
CN110117052A 一种硫化沉淀系统硫化氢尾气的吸收方法 无效 - 驳回

一种硫化沉淀系统硫化氢尾气的吸收方法
摘要：
本发明涉及一种硫化沉淀系统硫化氢尾气的吸收方法，它包括将金属矿山在采选冶过程中产生的金属矿山酸性废水进入硫化沉淀系统，生成金属硫化物及回收有价金属，它还包括将硫化沉淀系统产生的硫化氢尾气统一汇集至喷淋吸收装置，引流部分金属矿山酸性废水至喷淋吸收装置向硫化氢尾气喷淋，使矿山酸性废水中的金属离子与硫化氢气体按M2++H2S＝MS↓+2H+化学反应式进行反应，得混有金属硫化物的废水和达标气体，达标气体外排。它不用任何药剂和专用系统或设备，不引入新的有害杂质，也无需增加环保投资，利用金属矿山酸性废水来处理硫化氢气体，净化后气体达标排放，具有工艺简单实用、处理成本低廉、吸收效果显著等优点，特别适于金属矿山和湿法冶金行业应用。
摘要（英）：

The invention relates to a method for absorbing hydrogen sulfide tail gas in a sulfide precipitation system. The method comprises the steps that metal mine acidic wastewater generated by a metal minein a mining and smelting process enters the sulfide precipitation system, then metal sulfide is generated, and valuable metal is recovered; the hydrogen sulfide tail gas generated in the sulfide precipitation system is uniformly concentrated to a spray absorption device, a part of the metal mine acidic wastewater is drained to the spray absorption device to perform spraying on the hydrogen sulfidetail gas, so that metal ions in the metal mine acidic wastewater react with the hydrogen sulfide gas according to a chemical reaction formula shown in the description, wastewater mixed with the metalsulfide and up-to-standard gas are obtained, and the up-to-standard gas is discharged. The method for absorbing the hydrogen sulfide tail gas in the sulfide precipitation system has the advantages that no drug or special system or equipment is needed, no new harmful impurities are introduced, no addition of environmental protection investment is needed, the metal mine acidic wastewater is used for treating the hydrogen sulfide gas, the purified gas is discharged after reaching the standard, the process is simple and practical, the treatment cost is low, the absorption effect is obvious, and the method is especially applied to metal mines and hydrometallurgical industries.

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