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足球彩票足球彩票 > 行业新闻 > 正文

中小型电镀厂废水处理的有效方法

发布日期:2014-03-21

  1、 化学处理法

  通过向电镀废水中投加化学药剂,使废水中的污染物质发生氧化,还原化学反应或产生混凝,然后从水中分离出去,使废水得到净化,达到排放标准后排放。电镀厂根据废水中含有的污染物质的不同,可采用不同的处理工艺。如处理含氰废水(氰化镀铜、镀镉、镀银,镀合金等)投加氧化剂(可选用次氯酸钠,漂白粉,漂白,液氯等);处理含铬废水投加还原剂(可选用亚硫酸氢钠、水合肼、硫酸亚铁等);处理镀锌(碱性锌酸盐镀锌)废水投加混凝剂;处理酸、碱废水投加中和药剂等。然后用沉淀、气浮,过滤等固液分离措施将金属氢氧化物从废水中分离出来,使废水达到排放标准,分离出来的污泥可根据其特性,进行综合利用或无害化处理,防止造成二次污染。

  2、电解处理法

足球彩票  QINGHUADUYINHEWUQINGDUYINJISUANXINGDUTONGFEISHUIKEYICAIYONGDIANJIEFACHULI,ZAIDUYINSHENGCHANXIANDEYIJIPIAOXICAOPANGBIANANZHUANGYIGEHUISHOUYINDIANJIECAO,CAIYONGWUGEMODANJISHIDIANJIECAO,FEISHUIZHONGDEYINLIZIZAIDIANJIEGUOCHENGZHONGCHENJIZAIYINJI,DINGQIHUISHOUJINSHUYIN。DUIYUQINGHUADUYINFEISHUI,ZAIDIANJIEHUISHOUYINDETONGSHI,YEJINXINGLEDIANJIEPOQING,CHULIHOUDESHUIFANHUIYIJIPIAOXICAO,MOJIPIAOXICAOCAIYONGLIUDONGSHUIPIAOXI,PIAOXISHUIDADAOPAIFANGBIAOZHUNZHIJIEPAIFANG。YONGTONGYANGDEJISHUCHULISUANXINGDUTONGFEISHUI,KEYIHUISHOUJINSHUTONG。ZHEIZHONGDIANJIEHUISHOUJINSHUDESHEBEI,YINJICAILIAOYIBANKECAIYONGBUXIUGANG,YANGJICAILIAOYINGCAIYONGBURONGXINGYANGJI(RUTAIDUERYANGHUAQIAN,TAITUERYANGHUALIAO、SHIMODENG),DIANJIECAODEDIANYUANKECAIYONGZHILIUDIANYUANHUOMAICHONGDIANYUAN。JINJINIANLAIYOURENTONGGUOYANJIU,TICHULEDUIDIANDUFEISHUICHULIZHONGDUODEJISHU,ANZHAOTONGYIDESHUXUEMOXINGLAIPINGJIEZEYOU,ZONGHEKAOLVJISHU、JINGJI、HUANJING,ZIYUAN、NENGYUANZHUYINSU,SHIJISHUXUANZEJIANLIZAIKEXUEHUADEJICHUSHANG,ZHEISHIKEQUDEFANGFA。

  3、离子交换法

  LIYONGLIZIJIAOHUANSHUZHIHUOXINGJITUANSHANGDEKEJIAOHUANLIZI,QUCHUFEISHUIZHONGDEYANG、YINLIZI。CIFACHULIDIANDUFEISHUIBUJINKEHUIYONGSHUI,HAIKEHUISHOUJINSHULIZIRONGYE。ZHEIZHONGFANGFAYIYONGYUCHULIHANYOUJIN、NIE、TONG、GE、GEDENGFEISHUI。JINNIANLAIRENGONGHECHENGDEZHUANMENYONGYUCHULIDIANDUFEISHUIDERUOSUAN、RUOJIANDAKONGSHUZHI,KEFENBIEYONGYUQUCHUGE、NIEHETONG,YIJIYIXIEJINSHUDEQINGHUALUOHEYINLIZI。YIBANSHUOLAI,LIZIJIAOHUANFACHUCITOUZIJIAODA,CAOZUOGUANLISHUIPINGYAOQIUJIAOGAO,DANCHULIXIAOGUOWENDING,YOUYUNENGHUIYONGJINSHUHESHUI,SHIDANGQIANDIANDUFEISHUISHIXIANBILUXUNHUANDEZHUYAOZHILIFANGFAZHIYI。CUNZAIDEZHUYAOWENTISHIZAISHENGFEIYEHUIYOUNA、TIE、LVGENDENGZAZHILIZIBUNENGZHIJIEHUIYONGYUDUCAOZHONG,PAIRUHUANJINGHUIZAOCHENGWURAN。

  4、 膜分离法

  LIYONGBANTOUMOHUOLIZIJIAOHUANMODENGMOCAILIAO,ZAIWAIJIATUIDONGLIXIA,SHIFEISHUIZHONGDERONGJIEWUHESHUIFENLINONGSUO,YIJINGHUAFEISHUI。ZAIMOFENLIFAZHONG,FANSHENTOUFAYONGYUHANNIE、HANGEFEISHUIDENONGSUOCHULIYIYINGYONGYUSHENGCHAN。GEMODIANJIEFAYONGYUZAISHENGDUGEFEIYE。KUOSANSHENXIFAKEYONGYUSUANYEHUISHOU。MOFENLIFANGFACHENGBENJIAOGAO。

  5、 蒸发浓缩法

  LIYONGREYUANHEZHENGFAQIZAICHANGYAHUOFUYAXIAZHIJIENONGSUOFEISHUI。YONGZHEIZHONGFANGFACHULIGAONONGDUFEISHUIBIJIAOJINGJI,CHANGTONGSANJINILIUPIAOXI、QI-SHUIPENLIN,HUOTONGLIZIJIAOHUANFALIANHESHIYONG。MUQIANSHENGCHANZHONGGUANGFANCAIYONGTAIGUANBOMOZHENGFAQIHEZHENGFAFULAINONGSUOHANGEFEISHUI、HANQINGFEISHUIDENG,YESHIBILUXUNHUANDEZHUYAOCHULILIUCHENGZHIYI。

  6、 活性炭吸附法

足球彩票  HUOXINGTANJUYOUFEICHANGDUODEWEIKONGJIEGOUHEJUDADETONGBIBIAOMIANJI,TONGCHANG1g HUOXINGTANDEBIAOMIANJIDA700~1700㎡,YINERJUYOUJIQIANGDEWULIXIFULI,NENGYOUXIAODIXIFUFEISHUIZHONGDELIUJIAGELIZIDENGZHONGJINSHULIZI。DANGHUOXINGTANDADAOXIFUPINGHENGHOU,HAIKEYICAIYONGJIARE、SUANJINPAO、JIANJINPAODENGFANGSHICHUQUXIFUWU,SHIHUOXINGTANZAISHENG。

  7、 交换液膜法

  CAIYONGSHUIBAOYOUBAOSHUISHUANGZHONGRUYETIXI,YEMOWEIMEIYOUHEBIAOMIANHUOXINGJIHUOTIANJIAJI,YIWUZAITIYEMO、YOUZAITIYEMO、HANJINXINGYEMODENGJINRUDIANDUFEISHUI,LIUDONGZAITIZAIMOWAIXIANGJIEMIANYOUXUANZEDILUOHEZHONGJINSHULIZI,RANHOUZAIYEMONEIKUOSAN,ZAIMONEIJIEMIANSHANGJIELUO。ZHONGJINSHULIZIJINRUMONEIXIANGDEDAOFUJI,LIUDONGZAITIFANHUIMOWAIXIANGJIEMIAN,RUCIGUOCHENGZHOUERFUSHI,ZIDONGJINXING,SHIDEFEISHUIDEDAOJINGHUA,ZHONGJINSHUDEDAOHUISHOULIYONG。

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