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          • 擴(kuò)散滲析廢堿回收

            有機(jī)顏料生產(chǎn)行業(yè)-擴(kuò)散滲析氫氧化鈉回收項(xiàng)目
             
            項(xiàng)目簡(jiǎn)介
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              有機(jī)顏料生產(chǎn)過(guò)程中產(chǎn)生大量高濃度氫氧化鈉和有機(jī)物廢液,采用擴(kuò)散滲析裝置將氫氧化鈉和有機(jī)物分離,分離后的氫氧化鈉補(bǔ)濃后返回原工藝?yán)^續(xù)使用,而降低堿度后的有機(jī)物再用于提取顏料。本項(xiàng)目既解決了高堿高COD廢液排放問(wèn)題,又有效地回收了氫氧化鈉和顏料。
             
            項(xiàng)目現(xiàn)場(chǎng)
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            多晶硅行業(yè)-擴(kuò)散滲析氫氧化鈉回收項(xiàng)目
             
            項(xiàng)目簡(jiǎn)介
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              生產(chǎn)晶體硅太陽(yáng)能電池片的制絨工序產(chǎn)生大量廢堿,采用擴(kuò)散滲析堿回收裝置,廢堿液中80%游離堿被回收,90%硅酸鹽及大分子有機(jī)物被去除,回收堿加入新堿調(diào)配后返回到原工藝?yán)^續(xù)使用,含有少量堿液的殘液與廢水站酸性廢水中和,進(jìn)一步處理后達(dá)標(biāo)排放。本項(xiàng)目實(shí)現(xiàn)了堿的回收利用,降低了污水處理費(fèi)用。
             
            項(xiàng)目現(xiàn)場(chǎng)
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