The process of steel mesh galvanizing will produce a lot of waste materials, which will pollute the environment. Let's talk about the disposal of waste residue.

　　鍍鋅廢渣主要來自兩個(gè)方面:一是堿性鍍鋅液中產(chǎn)生的碳酸鹽;二是污水處理過程中形成的金屬氫氧化物。

　　The waste residue of zinc plating mainly comes from two aspects: one is carbonate produced in alkaline zinc plating solution; the other is metal hydroxide formed in sewage treatment process.

　　是堿鋅碳酸鹽的處理:氰化鋅和堿性鋅酸鹽在氫氧化鈉和氧化鈉中大量使用，它們都能吸收空氣中的二氧化碳形成碳酸鈉。當(dāng)碳酸鈉含量低時(shí)，對洗浴有好處。但是，當(dāng)含量較大時(shí)，鍍液的性能會(huì)受到影響。碳酸鹽通過冷凍或加入石灰水沉淀，形成污泥。

　　The first is the treatment of alkaline zinc carbonate: zinc cyanide and alkaline zincate are widely used in sodium hydroxide and sodium oxide, both of which can absorb carbon dioxide in the air to form sodium carbonate. When the content of sodium carbonate is low, it is good for bathing. However, when the content is large, the performance of the bath will be affected. Carbonate precipitates by freezing or adding lime water to form sludge.

　　在堿性鋅酸鹽鍍鋅液中形成的污泥可與水溶，通過調(diào)節(jié)PH值直接排出。

　　The sludge formed in alkaline zincate zinc plating solution can be dissolved in water and discharged directly by adjusting pH value.

　　鍍鋅鋼網(wǎng)生產(chǎn)過程中產(chǎn)生的氰化鍍鋅液中形成的污泥除含有大量的碳酸鹽外，還含有氰化鈉，給處理帶來麻煩。處理方法是將污泥與水溶后，按含氰廢水處理方法進(jìn)行處理。

　　The sludge formed in the cyanide zinc plating solution produced in the production of galvanized steel mesh contains not only a large amount of carbonate, but also sodium cyanide, which brings trouble to the treatment. The treatment method is to dissolve the sludge and water, and then treat the wastewater containing cyanide.

　　在污泥處理方面，從前面的討論中可以看出，在處理鍍鋅廢水時(shí)產(chǎn)生的污泥主要是氫氧化物和氫氧化鉻。純氫氧化鋅污泥可以溶解在濃氫氧化鈉溶液中，然后返回到鍍液(堿性鋅溶液)中使用。在酸性鍍鋅液中，污泥應(yīng)先與鹽酸溶解在氯化鋅中，再加入到鍍液中。

　　In terms of sludge treatment, it can be seen from the previous discussion that the sludge produced in the treatment of zinc plating wastewater is mainly hydroxide and chromium hydroxide. Pure zinc hydroxide sludge can be dissolved in concentrated sodium hydroxide solution, and then returned to the plating solution (alkaline zinc solution) for use. In the acid zinc plating solution, the sludge should be dissolved in zinc chloride with hydrochloric acid first, and then added to the plating solution.

　　以上是關(guān)于鋼筋網(wǎng)的相關(guān)內(nèi)容，希望對您有所幫助。

　　The above is about the relevant content of the steel mesh, I hope to help you.