摘要:含錳廢水，特別是錳廠生產過程中產生的含錳廢水，其Mn2+的含量大大超過了國家規定的錳排放標準。隨著電解錳行業的快速發展，電解錳生產設備以及污水處理系統的不完善，產生的大量含錳廢水，引發了嚴重的環境問題以及水污染問題。因此，有必要對含錳廢水進行處理。

　　　本論文對嚴重超標的含錳廢水，為了達到保護環境的目的，對廢水中的Mn2+采用氫氧化物沉淀-氧化法除去廢水中的錳離子。采用氫氧化物沉淀-氧化法研究了各單因素條件對除錳效果的影響，得到的最佳工藝條件為：反應溫度為50℃、H2O2（稀釋5倍）用量為4mL、NaOH（2mol/L）用量為6mL、反應時間為50min。除錳率最高達99.99%，除錳后溶液中Mn2+濃度由2000ug/mL降至0.05ug/mL，符合國家《污水綜合排放標準》(GB8978-1996)中對錳離子的一級標準限值(2mg/L)的排放要求。

關鍵詞：含錳廢水  硫酸錳  錳離子  雙氧水  氧化法

ABSTRACT:Manganese wastewater, especially manganese plants generated during the production of electrolytic manganese wastewater. Which the content of divalent manganese ion content greatly exceeded the national emission standards. With the rapid development of manganese industry, Manganese production equipment as well as sewage treatment system is imperfect, produce a lot of waste water containing manganese, triggered a serious environmental problems as well as water pollution problem. In particular wastewater containing soluble manganese ions can make people with chronic poisoning and contaminated water.

　　　In this thesis, for the excessive wastewater containing manganese, In order to achieve the purpose of protecting the environment, the divalent manganese ions of wastewater using hydroxide precipitation - oxidation to remove the manganese ions of wastewater. Using hydroxide precipitation - oxidation examined the single factor conditions on the effect of removing manganese, the optimum conditions were: The reaction temperature was 50℃, the H2O2 dosage was 4mL, the NaOH dosage was 6mL, the reaction time was 50min. The manganese removal rates up to 99.99%. After the reaction, the concentration of divalent manganese ions in solution was reduced from 2000 ug/mL down to 0.05 ug/mL , line with national "Integrated Wastewater Discharge Standard" (GB8978-1996) in the standard limit (2mg / L) of the manganese ions emission requirements.

Keywords: Manganese wastewater; Manganese sulfate; Manganese ions; Hydrogen peroxide; Oxidation.