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氨氮废水的处理方法

发布日期:2018-05-16 作者:江苏好山好水环保科技有限公司 点击:

 氨氮是水污染因素中重要的污染物,主要来自城镇生活污水、各种工业废水 及化学肥料和农家肥料等。水体中氮含量超标,不仅使水环境质量恶化,引起富营养化,还对人类以及动植物有严重危害。我国从20 世纪80 年代开始废水处理过程中脱氮的研究,但目前大多数污水处理厂仍未考虑脱氮的问题。因此对废水中氮的去除,特别是氨氮的去除需要引起高度的重视。本文介绍几种氨氮废水处理方法。

上海11选5APP  1  ANDANFEISHUICHULIDEZHUYAOFANGFA

上海11选5APP  1. 1  CHUITUOFA

  氨吹脱工艺是将水的pH 值提到10. 5 11. 5 的范围,在吹脱塔中反复形成水滴,通过塔内大量空气循环,气水接触,使氨气逸出。这种方法广泛用于处理中高浓度的氨氮废水,常需加石灰,经吹脱可以回收氨气。夏素兰从相平衡与气液传质速率两方面分析了氨氮吹脱工艺的影响因素,认为调节pH 值是改变吹脱体系化学平衡的重要手段,喷淋密度和气液比都是重要影响因素。胡继峰等认为去除率要达到90 %以上,pH 值必须大于12 且温度高于90 ℃。胡允良等实验室研究确定氨氮质量浓度为7. 2 7. 5 g/L 废水的最佳吹脱条件为:pH 值为11 ,温度为40 ℃,吹脱时间2 h ,出水中氨氮的质量浓度为307. 4 mg/L。黄骏等采用吹脱法处理三氧化二钒生产的高浓度氨氮废水,在实验室试验的基础上进行工业试验,出水达标排放。吹脱法主要用于处理高浓度的氨氮废水,其优点是设备简单,可以回收氨,但也存在许多缺点,主要有: ①环境温度影响大,低于0 ℃时,氨吹脱塔实际上无法工作; ②吹脱效率有限,其出水需进一步处理; ③吹脱前需要加碱把废水的pH值调整到11 以上,吹脱后又须加酸把pH 值调整到9 以下,所以药剂消耗大; ④工业上一般用石灰调整pH 值,很容易在水中形成碳酸钙垢而在填料上沉积,可使塔板完全堵塞;⑤吹脱时所需空气量较大,因此动力消耗大,运行成本高。

  1. 2  HUAXUECHENDIAN(MAP) FA

上海11选5APP  ZAIYIDINGDEpH TIAOJIANXIA,SHUIZHONGDEMg2 + 、HPO43 - HENH4+ KEYISHENGCHENGLINSUANANMEICHENDIAN,ERSHIANLIZICONGSHUIZHONGFENLICHULAI。YINGXIANGCHENDIANXIAOGUODEYINSUYOUCHENDIANJIZHONGLEIJIPEIBI、pH ZHI、FEISHUIZHONGDECHUSHIANDENONGDU、GANRAOZUFENDENG。YOUYANJIUBIAOMINGCHENDIANFAQUCHUFEISHUIZHONGANDANDEpH ZHIWEI10. 0 ,WUZHIDELIANGZHIBIMg∶N = 1. 2、P∶N = 1. 02 SHICHENDIANXIAOGUOZUIHAO,ANDANQUCHULVDADAO90 % 。ZHAOQINGLIANGDENGYANJIUBIAOMING,MgCl2 ·6H2O HENa2HPO4·12H2O ZUHECHENDIANJIYOUYUMgO HEH3PO4 ZUHE,LAJISHENLVYEZHONGDEANDANZHILIANGNONGDUKEYOU5 618 mg/L JIANGDIDAO65 mg/L。LIFURONGDENGCAIYONGYANGHUAMEIHELINSUANZUOWEICHENDIANJIQUCHUMEIQIXIDIXUNHUANSHUIZHONGGAONONGDUDEANDAN,XIAOGUOLIANGHAO。LICAIHUIDENGDUIMAP FACHULIANDANFEISHUIDEGONGYIJINXINGYOUHUA,YANJIUBIAOMINGANDANDEQUCHULVSUIZHEFANYINGSHIJIANDEZENGJIAERZENGJIA,SUIZHEMg∶N BIZHIDEZENGJIAERZENGJIA。LIUXIAOLANTANTAOLEBUTONGCAOZUOTIAOJIANDUIANDANQUCHULVDEYINGXIANG,ZAIpH ZHIWEI8. 5 9. 5 DETIAOJIANXIA,TOUJIADEYAOJIMg2 + ∶NH4+ ∶PO43 - (MOERBI)WEI1. 4∶1∶0. 8 SHI,FEISHUIANDANDEQUCHULVDA99 %YISHANG,CHUSHUIANDANDEZHILIANGNONGDUYOU2 g/L JIANGZHI15 mg/L。

上海11选5APP  GUOWAIDUIYONGHUAXUECHENDIANFAQUCHUFEISHUIZHONGDEANDANYEYOUJIAODUOYANJIU。Stratful DENGXIANGXIYANJIULEYINGXIANGLINSUANANMEICHENDIANJIJINGTISHENGZHANGDEYINSU,DECHU4 DIANJIELUN: ①GUOLIANGDEANLIZIDUIXINGCHENGLINSUANANMEICHENDIANYOULI; ②MEILIZIKENENGSHIXINGCHENGLINSUANANMEICHENDIANDEXIANZHIYINSU; ③RUGUOYAOXIANGCONGFEISHUIZHONGHUISHOULINSUANANMEI,XUYAODEDAOBIJIAODADEJINGTIKELI,ZEZHISHAOXUYAO3 h DEJIEJINGSHIJIAN; ④CHENDIANDEpH ZHIYINGDAYU8. 5。Battistoni DENGJINXINGLEYONGHUAXUECHENDIANFACONGFEISHUIYANYANGXIAOHUAHOUDESHANGQINGYEZHONGTONGSHIHUISHOUDANHELINDEYANJIU。FEISHUIYANYANGXIAOHUAGUOCHENGZHONG,YOUJIWUZHONGDEDANHELINBEIWEISHENGWUFENJIEWEIWUJIDELINSUANYANHEANDAN,TIANJIAMgO KEYISHENGCHENGLINSUANANMEICHENDIANKEHUISHOULINHEDAN。Lind DENGZEJINXINGLEYONGLINSUANANMEICHENDIANFACONGRENDENIAOYEZHONGHUISHOUYINGYANGWUZHIDEYANJIU,KEYIHUISHOU65. 0 % 80. 0 %DEDAN。

  HUAXUECHENDIANFADEZUIDAYOUDIANSHIKEYIHUISHOUFEISHUIZHONGDEAN,SUOSHENGCHENGDECHENDIANKEYIZUOWEIFUHEFEIERLIYONG。CUNZAIDEZHUYAOWENTISHICHENDIANJIDEYONGLIANGJIAODA,XUYAODUIFEISHUIDEpH JINXINGDIAOZHENG,LINGWAIYOUSHISHENGCHENGDECHENDIANKELIXIXIAOHUOSHIXUZHUANGTI,GONGYEZHONGGUYEFENLIYOUYIDINGKUNNAN。

上海11选5APP  1. 3  ZHEDIANLVHUAFA

  ZAIHANANDANDEFEISHUIZHONGTOULVHOU,YOURUXIAFANYING :

上海11选5APP  Cl2 + H2O——HOCl + H+ + Cl -

  NH4+ + HOCl——NH2Cl (YILVAN) + H2O + H+

  NH2Cl + HOCl——NHCl2 (ERLVAN) + H2O

  NHCl2 + HOCl——NCl3 (SANLVAN) + H2O

上海11选5APP  NH4+ + 3HOCl——N2 ↑+ 5H+ + 3Cl + 3H2O

  TONGCHANGYILVANHEERLVANCHENGWEIHUAHEYULV,CILVSUANCHENGWEIYULV。DANGTOULVLIANGDADAOLVYUANDEMOERBIZHI1∶1 SHI,HUAHEYULVJIZENGJIA,YULVXIAJIANGWUZHIDELIANGDEBIDADAO1. 5∶1 SHI, (ZHILIANGBI7. 6∶1 SHI) ,YULVXIAJIANGDAOZUIDIDIAN,CIJI“ZHEDIAN”。ZAIZHEDIANCHU,JIBENSHANGQUANBUYANGHUAXINGDELVDOUBEIHAIYUAN,QUANBUANDOUBEIYANGHUA,JINYIBUJIALVJIUHUICHANSHENGZIYOUYULV。GAIFAYUpH ZHI、WENDU、JIECHUSHIJIANJIANHELVDECHUSHIBIZHIYOUGUAN。

  ZHEDIANJIALVFAZUIDADEYOUDIANSHILILUNSHANGTONGGUOSHIDANGDEKONGZHI,KEYIBAANDANWANQUANQUCHU,DANYINJIALVLIANGDA,FEIYONGGAO,YIJICHANSUANZENGJIAZONGRONGJIEGUTIDENGYUANYIN,MUQIANCIFANGFAZHINENGZUOWEIANDANFEISHUIDEHOUXUCHULI,YIJIJISHUICHULIHUOYINYONGSHUICHULI。

上海11选5APP  1. 4  LIZIJIAOHUANFA

  LIZIJIAOHUANSHIJISHIBURONGXINGLIZIHUAHEWU(LIZIJIAOHUANJI) SHANGDEKEJIAOHUANLIZIYURONGYEZHONGDEQITATONGXINGLIZIDEJIAOHUANFANYING,SHIYIZHONGTESHUDEXIFUGUOCHENG。YONGLIZIJIAOHUANFAQUCHUANDANSHI,CHANGYONGLIZIJIAOHUANJIFEISHI、HUOXINGTANDENG,YEYOUYANJIUCAIYONGHECHENGSHUZHI。DANTIANRANLIZIJIAOHUANJIJIAGEBIANYIQIEZAISHENGRONGYI;CAIYONGHECHENGSHUZHI,YUCHULIGONGXUHEZAISHENGXITONGJUNJIAOFUZA,QIESHUZHISHOUMINGDUAN,YINGYONGSHANGSHOUYIDINGXIANZHI。

  XIAOJUQIANGDENGZHENGMINGHUOHUAFEISHIQUCHUANDANDEXIAOGUOYOUYUHUOXINGTAN。TAOYINGDENGCAIYONGTIANRANFEISHIQUCHUWUSHUIZHONGANDANXIAOGUOMINGXIAN,CHENGGONGJIANGWUSHUISHENDUCHULI。LIUYULIANGDENGDEJINGTAI、DONGTAIHEZAISHENGSHIYANJIEGUOBIAOMING,XIEFAFEISHIJINGTAIBAOHEXIFULIANGWEI3. 1 g/ 100 g ,ZAISHENGHOUYOUXIAOSHOUMINGKEDA140 h YISHANG。Rozic DENGYEJINXINGLEYONGFEISHIHEZHANTULEIKUANGWUQUCHUANDANDESHIYAN。YANJIUBIAOMING,YONGTIANRANFEISHIWEILIZIJIAOHUANJISHI,QIDUIANDANDEQUCHUNENGLIYUSHUIZHONGANDANDECHUSHIZHILIANGNONGDUYOUGUAN,ZAICHUSHIZHILIANGNONGDUXIAOYU100 mg/L SHI,ANDANDEQUCHULVKEYIDADAO60. 0 %YISHANG,QIESUICHUSHIZHILIANGNONGDUDEJIANGDIQUCHULVZENGJIA,DANGCHUSHIZHILIANGNONGDUCHAOGUO100 mg/L SHI,ANDANDEQUCHULVXUNSUXIAJIANG。

  LIUBAOMINDENGKAOCHALEQIANGSUANXINGYANGLIZIJIAOHUANSHUZHIDUIGAONONGDUJIAOHUAFEISHUIZHONGANDANDEXIFUXINGWEI。SHIYANJIEGUOBIAOMINGMEIg SHUZHIDUIANDANDEZUIDAXIFULIANGKEDAYU25 mg ,SHIXIAODESHUZHIYONG0. 5 mol/L XILIUSUANZAISHENGHOU,KELIANXUSHIYONG。

上海11选5APP  SUIRANLIZIJIAOHUANJIQUCHUFEISHUIZHONGDEANDANQUDELEYIDINGDEXIAOGUO,DANYOUYUCUNZAIQIJIAOHUANRONGLIANGYOUXIAN,ZAISHENGHOUDEJIAOHUANJIJIAOHUANRONGLIANGXIAJIANG,YOUXIEFEISHISHIYONGQIANXUYAOGAIXING,GAIXINGGUOCHENGCHANSHENGDESUANHUOJIANXINGFEISHUIXUYAOJINYIBUCHULIDENGWENTIXUYAOJIEJUE,SUOYIQIYANJIUJIBENTINGLIUZAISHIYANSHIJIEDUAN。

上海11选5APP  1. 5  SHENGWUCHULIFA

上海11选5APP  MUQIAN,SHENGWUFASHISHIJIYINGYONGZHONGSHIYONGZUIGUANGFANDECHULIDINONGDUANDANFEISHUIDEFANGFA。SHENGWUTUODANSHIZAIWEISHENGWUDEZUOYONGXIA,JIANGYOUJIDANHEANTAIDANZHUANHUAWEIN2 HENxO QITIDEGUOCHENG,QIZHONGBAOKUOXIAOHUAHEFANXIAOHUALIANGGEFANYINGGUOCHENG。XIAOHUASHIFEISHUIZHONGDEANTAIDANZAIHAOYANGTIAOJIANXIA,TONGGUOHAOYANGXIJUN(YAXIAOSUANJUNHEXIAOSUANJUN) DEZUOYONG,BEIYANGHUACHENGYAXIAOSUANYAN(NO2- ) HEXIAOSUANYAN(NO3- ) DEFANYINGGUOCHENG。FANXIAOHUAJITUODAN,SHIZAIQUEYANGTIAOJIANXIA,TONGGUOTUODANJUNDEZUOYONG,JIANGYAXIAOSUANYANHEXIAOSUANYANHAIYUANCHENGDANQI,GAIFANYINGGUOCHENGZHONG,FANXIAOHUAJUNXUYAOYOUJITANYUAN(RUJIACHUN) ZUODIANZIGONGTI,LIYONGNO3- ZHONGDEYANGJINXINGQUEYANGHUXI。

  LIUQIBIANYANJIUBIAOMINGYONGSHENGWUFAKEYIYOUXIAODIQUCHUJIAOHUAFEISHUIZHONGDEANDAN,pH ZHISHIYINGXIANGCHULIXIAOGUODEZHUYAOYINSU,XIAOHUAGUOCHENGDEZUIJIApH ZHIZAI8 9 ZHIJIAN,FANXIAOHUAGUOCHENGWEI7. 5 8. 5。CAOZUOWENDU、C/N BIJIWUNILINGYESHIYINGXIANGYINSU。CIWAIYIA2/ O GONGYIXIAOGUOZUIHAO。LIFENGZAIXUPISHIFANYINGQI(SBR) ZHONGYUNYONGGUDINGHUAXIBAOJISHUCHULIANDANFEISHUI,SHIYANBIAOMINGSBR JUYOULIANGHAODEQUCHUFEISHUIZHONGANDANDENENGLI,ANDANQUCHULVZAI99. 7 %YISHANG。

  Kim DENGTICHUDESHANGLIUSHIYANYANGGUOLVQI(up flow anaerobic fil2ter) SHIYIZHONGYONGYUXIAOXINGCHENGSHIWUSHUICHULICHANGDETUODANZHUANGZHI,GAIZHUANGZHINEITONGSHIYOUYANYANGHEHAOYANGGUOCHENG,DUIDANDEQUCHUFUHEBIPUTONGDEYIDUANHUOXINGWUNIFAGAO2 BEI。DEGUODERolf DENG[26 ]YETICHULELEISIDEYONGYUXIAOXINGWUSHUICHULICHANGDECHUDANZHUANGZHI。Siegrist DENG[27 ]YANJIULEYONGSHENGWUZHUANPANQUCHUGUTIFEIQIWUWEISHENGTIANMAIGUOCHENGZHONGCHANSHENGDESHENLVYEZHONGANDANDEFANGFAQUDELEJIAOHAODEXIAOGUO。Liu[28 ]BAODAOZAIYONGYUFANXIAOHUADEQUEYANGHEYANYANGFANYINGQIZHONGTIANCHONGXIANWEIZHUANGZAITI,ZHEIZHONGZAITIZUOWEIFANXIAOHUAXIJUNDESHENGZHANGZAITI,ERHAOYANGBUFENRENGCAIYONGCHUANTONGDEHUOXINGWUNIFA。ZHEIZHONGXINGONGYIYUCHUANTONGGONGYIXIANGBI,XUYANGLIANGHEXUTANLIANGFENBIEJIANGDI25 %HE40 % ,DANDEQUCHULVZENGJIA10 %。

  SHENGWUCHULIHANANDANFEISHUIMUQIANCUNZAIDEZHUYAOWENTISHIXIAOHUAFANXIAOHUASUOXUSHIJIANJIAOZHANG,XIAOHUAGUOCHENGSUOXUDEYANGQILIANGDA,PUQISHIJIANZHANG,DUIYUMOUXIEQUEFAYOUJIWUDEWUJIFEISHUIXUYAOLINGJIATANYUANYEZENGJIALECHULICHENGBEN,FANXIAOHUAGUOCHENGXIANGDANGFUZA,SHIJIYINGYONGSHIBUYIKONGZHI,YOUSHI,FEISHUIZHONGQUEFAZUGOUDECOD(DIANZIGONGJITI) JIANGNO-2 、NO-3 FANXIAOHUACHENGN2 PAIRUDAQI,RONGYIZAOCHENGPAIFANGSHUIZHONGNO2- 、NO3- DECANLIU,TONGYANGDUIHUANJINGZAOCHENGWURAN,YINCIZAIYIDINGCHENGDUSHANGXIANZHILETADEYINGYONG。

  1. 6  MOCHULIFA

上海11选5APP  MOXIFASHILIYONGBOMOYIFENLISHUIRONGYEZHONGMOUXIEWUZHIDEFANGFADEZONGCHENG。SUIZHEMOJISHUDERIYICHENGSHU,LIYONGMOXISHOUFA、YEMOFAJIMOSHENGWUFADENGMOJISHUCHULIANDANFEISHUIDEYANJIUYEBUDUANQUDEJINZHAN。

  YANGXIAOYIDENGCAIYONGDIANSHENXIFAHEJUBINGXI(PP) ZHONGKONGXIANWEIMOFACHULIGAONONGDUANDANWUJIFEISHUIKEQUDELIANGHAODEXIAOGUO,DIANSHENXIFACHULI2 3 g/L ANDANFEISHUIQUCHULVKEZAI85 %YISHANG,TONGSHIKEHUODE8. 9 %DENONGANSHUI。PP ZHONGKONGXIANWEIMOFATUOANXIAOLV≥90 % ,HUISHOUDELIUSUANANZHILIANGFENSHUZAI25 %ZUOYOU。

  XUGUOQIANGYONGYEMOFACHULIGAONONGDUANDANFEISHUI,JINSHUIANDANZHILIANGNONGDU500 mg/L ,CHUSHUIANDANZHILIANGNONGDUXIAOYU15 mg/L ,WUERCIWURAN。

  SHENHUANDENGCAIYONGMOSHENGWUFADUILAJISHENLVYEJINGUASB YUCHULIDECHUSHUIJINXINGLEJIANGJIESHIYAN。JIEGUOBIAOMING,MBR DUIANDANDEQUCHULVWEI90 %~99. 8 % ,DUIZONGDANDEQUCHULVWEI50 %~67 %。

  MOCHULIFADEZHUYAOWENTISHIMODEWURANHEWENDINGXING,ERQIEXIANGDUIYUQITAFANGFALAISHUO,YUNXINGCHENGBENHEFEIYONGDOUJIAOGAO,YINCIZAIYIDINGCHENGDUSHANGXIANZHILEQIYINGYONG。

上海11选5APP  1. 7  CUIHUASHISHIYANGHUAFA

上海11选5APP  CUIHUASHISHIYANGHUAFA(CWO)KAIFAYU20 SHIJI80 NIANDAI,SHIZAIYIDINGDEWENDUYALIHECUIHUAJIDEZUOYONGXIA,WUSHUIZHONGDEYOUJIWU、ANDENGJINGRONGJIEDEFENZIYANGHUASHENGCHENGCO2 、H2O JIN2 DENGWUHAIWUZHI,DADAOJINGHUADEMUDE。

  ANSHANJIAOTANNAIHUOCAILIAOYANJIUYUANHEZHONGGUOKEXUEYUANCAIYONGZIXINGYANZHIDEXINXINGGAOXIAOSHUANGZUFENCUIHUAJICHULIBAOKUOJIAOHUAWUSHUIZAINEIDEHANGAONONGDUYOUJIWUHEANDANWUSHUI,XIAOGUOXIANZHU。QITEDIANWEIJINGHUAXIAOLVGAO、LIUCHENGJIANDANHEZHANDIMIANJISHAO。DANYOUYUSHEBEINAIGAOWEN、NAIFUSHI,GUTOUZIJIAODA。

  1. 8  YANDAOQIZHILIFA

  HUAIYINGANGTIEJITUANGONGSILIYONGFADIANCHANGYANDAOQICHULISHENGYUANSHUICAIYONGTEZHIDEPENWUGANZAOTA,JIANGJIAOHUASHENGYUANSHUIYIWUHUAZHUANGTAIHETANEIDEYANDAOQIJIECHUFASHENGWULIHUAXUEFANYING,FEISHUIZHONGDESHUIFENQUANBUQIHUA,SUIYANDAOQIJINGYANCONGPAICHU。ZHUYAOFANYINGWULIUANYIJIFEISHUIZHONGDEYOUJIWUHEFENMEIHUIJINGXICHENQISHOUJIHOU,ZONGHELIYONGZHIZHUANHUOZUOGUOLURANLIAODETIANJIAJI。

上海11选5APP  YANDAOQIZHILIFAYOUXIAODILIYONGLEYANDAOQIFEIREYOUSHIANGUHUA,SHIYIZHONG“YIFEIZHIFEI”DEZONGHELIYONGFANGFA。DANGAIFAXUYAOFADIANCHANGDEYANDAOFEIQI,HAIYAOKAOLVYANDAOQIDELIANGHESHENGYUANSHUIDELIANGXIANGPIPEI,YINCIQIYINGYONGSHOUDAOXIANZHI。JUTICANJIANWUSHUIBAOSHANGCHENGZILIAOHUOhttp://www.dowater.comGENGDUOXIANGGUANJISHUWENDANG。

  2  QIANJINGYUZHANWANG

上海11选5APP  ANDANSHIFEISHUIZHILIDEZHONGYAOYANJIUDUIXIANGZHIYI,RENMENDUICIZHENGZAIBUDUANCHANGSHIWULI、HUAXUE、SHENGWUDENGDUOZHONGGONGYIJISHUDEKAIFAYINGYONG。JIANYUGEZHONGFANGFACUNZAIDEWENTIJIQIKAIFAQIANJING,JINHOUANDANFEISHUIDEYANJIUYINGZHEZHONGKAOLVYIXIAJIGEFANGMIAN:

  (1) LIANJIACHENDIANJIDEKAIFA,BAOKUOLINYUAN、MEIYUANDEKAIFAYANJIUJIXUNHUANLIYONG。

  (2) YOUHUAXIFUJIDEXINGNENG,YANZHANGQISHIYONGZHOUQIJISHOUMING。

  (3) SHENRUYANJIUWEISHENGWUFAQUCHUANDAN,XUNHUAGAOXIAOGONGNENGJUNZHONG。

上海11选5APP  (4) FUHEGONGYIQUDAIDANYIGONGYICHEDIQUCHUFEISHUIZHONGANDAN。XIANGGUANYUEDU《CHOUYANGYANGHUAFACHULIRANLIAOFEISHUIJISHUJINZHAN》

  (5) KUODASHIYANYANJIUDEGONGYEHUAYINGYONG。


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