选矿废水中含有哪些浮选药剂,怎样处理?
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; WORD-BREAK: break-all; LINE-HEIGHT: 33pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 18pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">选矿废水具有水量大,悬浮物含量高,含有害物质种类较多的特点。其有害物质是重金属离子和选矿药剂。重金属离子有铜、锌、铅、镍、钡、镉以及砷和稀有元素等。在选矿过程中加入的浮选药剂有如下几类:<SPAN lang=EN-US>(1)</SPAN>捕集剂.如黄药<SPAN lang=EN-US>(RocssMe)</SPAN>、黑药<SPAN lang=EN-US>[(RO)2PSSMe]</SPAN>、白药<SPAN lang=EN-US></SPAN>;<SPAN lang=EN-US>(2)</SPAN>抑制刑,如氰盐<SPAN lang=EN-US>(KCN</SPAN>,<SPAN lang=EN-US>NaCN)</SPAN>、水玻璃<SPAN lang=EN-US>(Na2SiO3)</SPAN>;<SPAN lang=EN-US>(3)</SPAN>起泡剂,如松节油、甲酚<SPAN lang=EN-US>(C6H4CH30H)</SPAN>;<SPAN lang=EN-US>(4)</SPAN>活性刑,如硫酸铜<SPAN lang=EN-US>(CuS04)</SPAN>、重金属盐类;<SPAN lang=EN-US>(5)</SPAN>硫化剂,如硫化钠;<SPAN lang=EN-US>(6)</SPAN>矿桨调节剂,如硫酸、石灰等。选矿废水主要通过尾矿坝可有效地去除废水中悬浮物,重金属和浮选药剂含量也可降低。如达不到排放要求时,应作进一步处理,常用的处理方法有:<SPAN lang=EN-US>(1)</SPAN>去除重金属可采用石灰中和法和焙烧白云石吸附法;<SPAN lang=EN-US>(2)</SPAN>主除浮选药剂可采用矿石吸附法、活性炭吸附法;<SPAN lang=EN-US>(3)</SPAN>含氰废水可采用化学氧化法。<SPAN lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></SPAN></P></TD></TR></TBODY></TABLE></DIV> :handshake 老师在煤炭行业很内行呀,后续还请指导呢。
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