铜杆酸洗及铁丝镀锌废水的处理

• 作 者: 袁炎荣 肖万震
• 机 构: 武汉电线电缆总厂,武汉电线电缆总厂,
• 出 处: 电线电缆
• 发表日期: 1982年02期
• 关键词: 铜杆 酸洗 国家排放标准 水质情况 稀硫酸 排放量 产品质量 离子交换法 化学沉淀法 冲洗废水

铜杆在拉制之前,用稀硫酸液破坏铜杆表面的氧化层,这有利于减少模子磨损,提高产品质量。但对酸洗后的铜杆进行冲洗时,大量的Cu~(++)及80~(++)进入水中。同样,镀锌铁丝在冲洗时,也有大量的Zn~(++)及Cl~-进入水中,因而使废水中铜和锌含量以及pH值都大大超过国家排放标准。以前我厂废水排放量及水质情况见表1。

Copper rod in the drawing, the use of dilute sulfuric acid destruction of copper oxide layer on the surface, which helps to reduce mold wear and improve product quality. However, when the pickled copper rod is washed, a large amount of Cu ~ (++) and 80 ~ (++) enter the water. Similarly, galvanized iron wire also has a large amount of Zn ~ (++) and Cl ~ - entering the water during flushing. As a result, the content of copper and zinc in the wastewater and the pH value greatly exceed the national emission standards. Before I plant wastewater emissions and water quality in Table 1.