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src="http://img.dlwjdh.com/upload/13116/210602/a9ea8b10b530f30b329f9ad8e57c227d@600X450.jpg" width="500" height="376" title="河南電鍍園區" align="" alt="河南電鍍園區" style="font-size:medium;" /><br /> </span> </p> <span style="white-space:normal;font-size:18px;"> 電鍍環節主要包括鍍件前處理、掛具電鍍、鍍件后處理、電鍍槽液維護、操作現場衛生清潔等。因此，根據電鍍工藝，廢水的來源主要分為前端廢水、鍍件清洗水、后端廢水、廢電鍍液廢水和其他廢水。</span><br style="white-space:normal;" /> <span style="white-space:normal;font-size:18px;">電鍍、線路板、選礦、冶煉、顏料行業廢水中重金屬離子濃度高，傳統沉淀法存在以下問題:</span><br style="white-space:normal;" /> <span style="white-space:normal;font-size:18px;">(1)廢水水質波動，加藥量難以精確控制，造成滯后現象；</span><br style="white-space:normal;" /> <span style="white-space:normal;font-size:18px;">(2)產生重金屬鉻化合物，廢水中含有添加劑和絡合劑，傳統的沉淀法難以充分沉淀分離廢水中的重金屬離子；</span><br style="white-space:normal;" /> <span style="white-space:normal;font-size:18px;">(3)沉淀處理技術藥劑用量大，運行費用高；</span><br style="white-space:normal;" /> <span 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