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高氨氮废水如何处理

发布日期:2019-07-09 作者: 点击:

高氨氮废水的一般的形成是由于氨水和无机氨共同存在所造成的,一般上ph在中性以上的废水氨氮的主要来源是无机氨和氨水共同的作用,ph在酸性的条件下废水中的氨氮主要由于无机氨所导致。废水中氨氮的构成主要有两种,一种是氨水形成的氨氮,一种是无机氨形成的氨氮,主要是硫酸铵,氯化铵等等。

GAOANDANFEISHUIRUHECHULI,WOMENZHEZHONGJIESHAOYIXIAQICHULIFANGFA:

1 WUHUAFA

1.1 CHUITUOFA

ZAIJIANXINGTIAOJIANXIA,LIYONGANDANDEQIXIANGNONGDUHEYEXIANGNONGDUZHIJIANDEQIYEPINGHENGGUANXIJINXINGFENLIDEYIZHONGFANGFA,YIBANRENWEICHUITUOYUSHIDU、PH、QIYEBIYOUGUAN。

1.2 FEISHITUOANFA

  LIYONGFEISHIZHONGDEYANGLIZIYUFEISHUIZHONGDENH4+JINXINGJIAOHUANYIDADAOTUODANDEMUDE。YINGYONGFEISHITUOANFABIXUKAOLVFEISHIDEZAISHENGWENTI,TONGCHANGYOUZAISHENGYEFAHEFENSHAOFA。CAIYONGFENSHAOFASHI,CHANSHENGDEANQIBIXUJINXINGCHULI。

1.3 MOFENLIJISHU

利用膜的选择透过性进行氨氮脱除的一种方法。这种方法操作方便,氨氮回收率高,无二次污染。例如:气水分离膜脱除氨氮
    氨氮在水中存在着离解平衡,随着PH升高,氨在水中NH3形态比例升高,在一定温度和压力下,NH3的气态和液态两项达到平衡。根据化学平衡移动的原理即吕.查德里(A.L.LE Chatelier)原理。在自然界中一切平衡都是相对的和暂时的。化学平衡只是在一定条件下才能保持“假若改变平衡系统的条件之一,如浓度、压力或温度,平衡就向能减弱这个改变的方向移动。”遵从这一原理进行了如下设计理念在膜的一侧是高浓度氨氮上海11选5APP废水,另一侧是酸性水溶液或水。当左侧温度T1>20℃,PH1>9,P1>P2保持一定的压力差,那么废水中的游离氨NH4+,就变为氨分子NH3,并经原料液侧介面扩散至膜表面,在膜表面分压差的作用下,穿越膜孔,进入吸收液,迅速与酸性溶液中的H+反应生成铵盐。

1.4MAPCHENDIANFA

ZHUYAOSHILIYONGYIXIAHUAXUEFANYING:Mg2++NH4++PO43-=MgNH4PO4

LILUNSHANGJIANGYIYIDINGBILIXIANGHANYOUGAONONGDUANDANDEFEISHUIZHONGTOUJIALINYANHEMEIYAN,DANG[Mg2 + ][NH4+][PO43 -]>2.5×10–13SHIKESHENGCHENGLINSUANANMEI(MAP),CHUQUFEISHUIZHONGDEANDAN。

1.5 HUAXUEYANGHUAFA

LIYONGQIANGYANGHUAJIJIANGANDANZHIJIEYANGHUACHENGDANQIJINXINGTUOCHUDEYIZHONGFANGFA。ZHEDIANJIALVSHILIYONGZAISHUIZHONGDEANYULVFANYINGSHENGCHENGANQITUOAN,ZHEIZHONGFANGFAHAIKEYIQIDAOSHAJUNZUOYONG,DANSHICHANSHENGDEYULVHUIDUIYULEIYOUYINGXIANG,GUBIXUFUSHECHUYULVSHESHI。

2 SHENGWUTUODANFA

上海11选5APP  CHUANTONGHEXINKAIFADETUODANGONGYIYOUA/O,LIANGDUANHUOXINGWUNIFA、QIANGYANGHUAHAOYANGSHENGWUCHULI、DUANCHENGXIAOHUAFANXIAOHUA、CHAOSHENGCHUITUOCHULIANDANFAFANGFADENG。

上海11选5APP2.1A/OGONGYIJIANGQIANDUANQUEYANGDUANHEHOUDUANHAOYANGDUANCHUANLIANZAIYIQI,ADUANDOBUDAYU0.2mg/L,ODUANDO=2~4mg/L。ZAIQUEYANGDUANYIYANGJUNJIANGWUSHUIZHONGDEDIANFEN、XIANWEI、TANSHUIHUAHEWUDENGXUANFUWURANWUHEKERONGXINGYOUJIWUSHUIJIEWEIYOUJISUAN,SHIDAFENZIYOUJIWUFENJIEWEIXIAOFENZIYOUJIWU,BURONGXINGDEYOUJIWUZHUANHUACHENGKERONGXINGYOUJIWU,DANGZHEIXIEJINGQUEYANGSHUIJIEDECHANWUJINRUHAOYANGCHIJINXINGHAOYANGCHULISHI,TIGAOWUSHUIDEKESHENGHUAXING,TIGAOYANGDEXIAOLV;ZAIQUEYANGDUANYIYANGJUNJIANGDANBAIZHI、ZHIFANGDENGWURANWUJINXINGANHUA(YOUJILIANSHANGDENHUOANJISUANZHONGDEANJI)YOULICHUAN(NH3、NH4+),ZAICHONGZUGONGYANGTIAOJIANXIA,ZIYANGJUNDEXIAOHUAZUOYONGJIANGNH3-N(NH4+)YANGHUAWEINO3-,TONGGUOHUILIUKONGZHIFANHUIZHIACHI,ZAIQUEYANGTIAOJIANXIA,YIYANGJUNDEFANXIAOHUAZUOYONGJIANGNO3-HAIYUANWEIFENZITAIDAN(N2)WANCHENGC、N、OZAISHENGTAIZHONGDEXUNHUAN,SHIXIANWUSHUIWUHAIHUACHULI。QITEDIANSHIQUEYANGCHIZAIQIAN,WUSHUIZHONGDEYOUJITANBEIFANXIAOHUAJUNSUOLIYONG,KEJIANQINGQIHOUHAOYANGCHIDEYOUJIFUHE,FANXIAOHUAFANYINGCHANSHENGDEJIANDUKEYIBUCHANGHAOYANGCHIZHONGJINXINGXIAOHUAFANYINGDUIJIANDUDEXUQIU。HAOYANGZAIQUEYANGCHIZHIHOU,KEYISHIFANXIAOHUACANLIUDEYOUJIWURANWUDEDAOJINYIBUQUCHU,TIGAOCHUSHUISHUIZHI。BOD5DEQUCHULVJIAOGAOKEDA90~95%YISHANG,DANTUODANCHULINXIAOGUOSHAOCHA,TUODANXIAOLV70~80%,CHULINZHIYOU20~30%。JINGUANRUCI,YOUYUA/OGONGYIBIJIAOJIANDAN,YEYOUQITUCHUDETEDIAN,MUQIANRENGSHIBIJIAOPUBIANCAIYONGDEGONGYI。

2.2LIANGDUANHUOXINGWUNIFANENGYOUXIAODEQUCHUYOUJIWUHEANDAN,QIZHONGDIERJICHUYUYANSHIPUQIJIEDUAN,TINGLIUSHIJIANZAI36XIAOSHIZUOYOU,WUSHUINONGDUZAI2g/lYIXIA,KEYIBUPAINIHUOSHAOPAINICONGERJIANGDIWUNICHULIFEIYONG。

上海11选5APP2.3QIANGYANGHUAHAOYANGSHENGWUCHULIQIDIANXINGDAIBIAOYOUFENMOHUOXINGTANFA(PACTGONGYI)

FENMOHUOXINGTANFADEZHUYAOTEDIANSHIXIANGPUQICHIZHONGTOUJIAFENMOHUOXINGTAN(PAC)LIYONGFENMOHUOXINGTANJIWEIFADADEWEIKONGJIEGOUHEGENGDADEXIFUNENGLI,SHIRONGJIEYANGHEYINGYANGWUZHIZAIQIBIAOMIANFUJI,WEIXIFUZAIPAC SHANGDEWEISHENGWUTIGONGLIANGHAODESHENGHUOHUANJINGCONGERTIGAOYOUJIWUDEJIANGJIESULV。

JINNIANLAIGUONEIWAICHUXIANLEYIXIEQUANXINDETUODANGONGYI,WEIGAONONGDUANDANFEISHUIDETUODANCHULITIGONGLEXINDETUJING。ZHUYAOYOUDUANCHENGXIAOHUAFANXIAOHUA、HAOYANGFANXIAOHUAHEYANYANGANYANGHUADENG。

上海11选5APP2.4 DUANCHENGXIAOHUAFANXIAOHUA

上海11选5APPSHENGWUXIAOHUAFANXIAOHUASHIYINGYONGZUIGUANGFANDETUODANFANGSHI,SHIQUCHUSHUIZHONGANDANDEYIZHONGJIAOWEIJINGJIDEFANGFA,QIYUANLIJIUSHIMONIZIRANSHENGTAIHUANJINGZHONGDANDEXUNHUAN,LIYONGXIAOHUAJUNHEFANXIAOHUAJUNDELIANHEZUOYONG,JIANGSHUIZHONGANDANZHUANHUAWEIDANQIYIDADAOTUODANMUDE。YOUYUANDANYANGHUAGUOCHENGZHONGXUYAODALIANGDEYANGQI,PUQIFEIYONGCHENGWEIZHEIZHONGTUODANFANGSHIDEZHUYAOKAIZHI。DUANCHENGXIAOHUAFANXIAOHUASHIJIANGANDANYANGHUAKONGZHIZAIYAXIAOHUAJIEDUAN,RANHOUJINXINGFANXIAOHUA,SHENGQULECHUANTONGSHENGWUTUODANZHONGYOUYAXIAOSUANYANYANGHUACHENGXIAOSUANYAN,ZAIHAIYUANCHENGYAXIAOSUANYANLIANGGEHUANJIE(JIJIANGANDANYANGHUAZHIYAXIAOSUANYANDANJIJINXINGFANXIAOHUA)。GAIJISHUJUYOUHENDADEYOUSHI:①JIESHENG25%YANGGONGYINGLIANG,JIANGDINENGHAO;②JIANSHAO40%DETANYUAN,ZAIC/NJIAODIDEQINGKUANGXIASHIXIANFANXIAOHUATUODAN;③SUODUANFANYINGLICHENG,JIESHENG50%DEFANXIAOHUACHIRONGJI;④JIANGDIWUNICHANLIANG,XIAOHUAGUOCHENGKESHAOCHANWUNI33%~35%ZUOYOU,FANXIAOHUAJIEDUANSHAOCHANWUNI55%ZUOYOU。SHIXIANDUANCHENGXIAOHUAFANXIAOHUASHENGWUTUODANJISHUDEGUANJIANJIUSHIJIANGXIAOHUAKONGZHIZAIYAXIAOSUANJIEDUAN,ZUZHIYAXIAOSUANYANDEJINYIBUYANGHUA。

2.5 YANYANGANYANGHUA(ANAMMOX)HEQUANCHENGZIYANGTUODAN(CANON)

YANYANGANYANGHUASHIZHIZAIYANYANGTIAOJIANXIAANDANYIYAXIAOSUANYANWEIDIANZISHOUTIZHIJIEBEIYANGHUACHENGDANQIDEGUOCHENG。

上海11选5APPYANYANGANYANGHUA(Anaerobicammoniaoxidation,JIANCHENGANAMMOX)SHIZHIZAIYANYANGTIAOJIANXIA,YIPlanctomycetalesspWEIDAIBIAODEWEISHENGWUZHIJIEYINH4+WEIDIANZIGONGTI,YINO2-HUONO3-WEIDIANZISHOUTI,JIANGNH4+、NO2-HUONO3-ZHUANBIANCHENGN2DESHENGWUYANGHUAGUOCHENG。GAIGUOCHENGLIYONGDUTEDESHENGWUJITIYIXIAOSUANYANZUOWEIDIANZIGONGTIBAANDANZHUANHUAWEIN2,ZUIDAXIANDUDESHIXIANLENDEXUNHUANYANYANGXIAOHUA,ZHEIZHONGOUHEDEGUOCHENGDUIYUCONGYANYANGXIAOHUADEFEISHUIZHONGTUODANJUYOUHENHAODEQIANJING,DUIYUGAOANDANDICODDEWUSHUIYOUYUXIAOSUANYANDEBUFENYANGHUA,DADAJIESHENGLENENGYUAN。MUQIANTUICEYANYANGANYANGHUAYOUDUOZHONGTUJING。QIZHONGYIZHONGSHIQIANGANHEYAXIAOSUANYANSHENGCHENGN2ODEFANYING,ERN2OKEYIJINYIBUZHUANHUAWEIDANQI,ANBEIYANGHUAWEIQIANGAN。LINGYIZHONGSHIANHEQIANGANFANYINGSHENGCHENGLIANAN,LIANANBEIZHUANHUACHENGDANQIBINGSHENGCHENG4GEHAIYUANXING[H],HAIYUANXING[H]BEICHUANDIDAOYAXIAOSUANHAIYUANXITONGXINGCHENGQIANGAN。DISANZHONGSHI:YIFANGMIANYAXIAOSUANBEIHAIYUANWEINO,NOBEIHAIYUANWEIN2O,N2OZAIBEIHAIYUANCHENGN2;LINGYIFANGMIAN,NH4+BEIYANGHUAWEINH2OH,NH2OHJINGN2H4,N2H2BEIZHUANHUAWEIN2。YANYANGANYANGHUAGONGYIDEYOUDIAN:KEYIDAFUDUDIJIANGDIXIAOHUAFANYINGDECHONGYANGNENGHAO;MIANQUFANXIAOHUAFANYINGDEWAIYUANDIANZIGONGTI;KEJIESHENGCHUANTONGXIAOHUAFANXIAOHUAFANYINGGUOCHENGZHONGSUOXUDEZHONGHESHIJI;CHANSHENGDEWUNILIANGJISHAO。YANYANGANYANGHUADEBUZUZHICHUSHI:DAOMUQIANWEIZHI,YANYANGANYANGHUADEFANYINGJILI、CANYUJUNZHONGHEGEXIANGCAOZUOCANSHUBUMINGQUE。

上海11选5APPQUANCHENGZIYANGTUODANDEQUANGUOCHENGSHIZAIYIGEFANYINGQIZHONGWANCHENG,QIJILISHANGBUQINGCHU。HippenDENGRENFAXIANZAIXIANZHIRONGJIEYANG(DONONGDUWEI0.8·1.0mg/l)HEBUJIAYOUJITANYUANDEQINGKUANGXIA,YOUCHAOGUO60%DEANDANZHUANHUACHENGN2ERDEYIQUCHU。TONGSHIHelmerDENGTONGGUOSHIYANZHENGMINGZAIDIDONONGDUXIA,XIJUNYIYAXIAOSUANGENLIZIWEIDIANZISHOUTI,YIANGENLIZIWEIDIANZIGONGTI,ZUIZHONGCHANWUWEIDANQI。YOUSHIYANYONGYINGGUANGYUANWEIZAJIAOJISHUJIANCEQUANCHENGZIYANGTUODANFANYINGQIZHONGDEWEISHENGWU,FAXIANZAIFANYINGQICHUYUWENDINGJIEDUANSHIJISHIZAIXIANZHIPUQIDEQINGKUANGXIA,FANYINGQIZHONGRENRANCUNZAIYOUHUOXINGDEYANYANGANYANGHUAJUN,BUCUNZAIXIAOHUAJUN。YOU85%DEANDANZHUANHUAWEIDANQI。JIANYUYISHANGLILUN,QUANCHENGZIYANGTUODANKENENGBAOKUOLIANGBUDIYISHIJIANGBUFENANDANYANGHUAWEIYANXIAOSUANYAN,DIERSHIYANYANGANYANGHUA。

2.6 HAOYANGFANXIAOHUA

CHUANTONGTUODANLILUNRENWEI,FANXIAOHUAJUNWEIJIANXINGYANYANGJUN,QIHUXILIANZAIYOUYANGTIAOJIANXIAYIYANGQIWEIZHONGMODIANZISHOUTIZAIQUEYANGTIAOJIANXIAYIXIAOSUANGENWEIZHONGMODIANZISHOUTI。SUOYIRUOJINXINGFANXIAOHUAFANYING,BIXUZAIQUEYANGHUANJINGXIA。JINNIANLAI,HAOYANGFANXIAOHUAXIANXIANGBUDUANBEIFAXIANHEBAODAO,ZHUJIANSHOUDAORENMENDEGUANZHU。YIXIEHAOYANGFANXIAOHUAJUNYIJINGBEIFENLICHULAI,YOUXIEKEYITONGSHIJINXINGHAOYANGFANXIAOHUAHEYIYANGXIAOHUA(RURobertsonDENGFENLI、SHAIXUANCHUDETpantotropha.LMD82.5)。ZHEIYANGJIUKEYIZAITONGYIGEFANYINGQIZHONGSHIXIANZHENZHENGYIYISHANGDETONGBUXIAOHUAFANXIAOHUA,JIANHUALEGONGYILIUCHENG,JIESHENGLENENGLIANG。

上海11选5APP2.7CHAOSHENGCHUITUOCHULIANDAN

超声 吹 脱 法去除氨氮是一种新型、高效的高浓度氨氮废水处理上海11选5APP技术,它是在传统的吹脱方法的基础上,引入超声波辐射废水处理技术,将超声波和吹脱技术联用而衍生出来的一种处理氨氮的方法。将这两种方法联用不仅改进了超声波处理废水成本较高的问题,也弥补了传统吹脱技术去除氨氮不佳的缺陷,超生吹脱法在保证处理氨氮的效果的同时还能对废水中有机物的降解起到一定的提高作用。技术特点(1)高浓度氨氮废水采用90年代高新技术——超声波脱氮技术,其总脱氮效率在70~90%,不需要投加化学药剂,不需要加温,处理费用低,处理效果稳定。(2)生化处理采用周期性活性污泥法(CASS)工艺,建设费用低,具有独特的生物脱氮功能,处理费用低,处理效果稳定,耐负荷冲击能力强,不产生污泥膨胀现象,脱氮效率大于90%,确保氨氮达标。

上海11选5APP2.8 BardenphoGONGYI

 GAIGONGYISHI(SHI)ZAIA/OGONGYIJICHUSHANG,ZENGSHELEYIGEQUEYANGDUANHEHAOYANGDUAN,GEDUANFANYINGCHIJUNDULIYUNXING,HUNHEYEZIDIYIHAOYANGCHIHUILIUZHIDIYIQUEYANGCHIERDIERHAOYANGCHIWUHUNHEYEHUILIU(YINERXUZHUYI,DIERQUEYANGCHIHEDIERHAOYANGCHIBINGFEIZUCHENGYIJIA/OGONGYI)SUOZENGSHEDEQUEYANGDUANHEHAOYANGDUANQIQIANGHUATUOANHETIGAOCHULICHUSHUISHUIZHIDEZUOYONG。YUNXINGGUOCHENGZHONG,DIYIHAOYANGCHIDENEIBUHUILIUHUNHEYE、YUANSHUIZHONGDEYOUJIJIZHIJIHUILIUWUNIJINRUDIYIYANYANGCHI,JINXINGFANXIAOHUATUODAN。YOUYUDIYIYANYANGCHIJINSHUIZHONGHANYOUJIAODUONEITANYUANKELIYONGYINERJUYOUJIAOGAODEFANXIAOHUASULV,DANYUQIJINSHUIZHONGDESHILIAOBIYOUGUAN。HAOYANGYICHIDERONGJIYIBANKEANF./MWEI0.25KAOLV;ZAIYANYANGERCHIZHONG,YOUYUHAOYANGERCHICHUSHUIZHONGYOUJIWUNONGDUJIAODI,TONGSHIYEMEIYOUWAIJIATANYUANYINERFANXIAOHUAJUNZHUYAOTONGGUONEIYUANHUXIZUOYONG,YIXIBAONEITANYUANJINXINGFANXIAOHUA,YINCIFANXIAOHUAXIAOLVJIAODI,BINGYUXITONGDEWUNILINGYOUGUAN。DANZHEIZHONGFANXIAOHUAZUOYONGKEYOUXIAODITIGAOZHENGGECHULIXITONGDEFANXIAOHUACHENGDU,CONGERLIYUTIGAOTUODANXIAOLV。BIYAOSHI,KEJIANGSHAOBUFENJINSHUIYINRUYANYANGERCHIYISHIDANGBUCHONGTANYUAN,TIGAOQIFANXIAOHUASULV。GAIGONGYIZHONGHAOYANGERCHIDEZHUYAOZUOYONGSHIJINYIBUJIANGDIFEISHUIZHONGDEYOUJIWUNONGDU,TONGSHIGAISHANCHUSHUIDEBIAOGUANXINGZHUANGYOUYUZENGSHELEYANYANGERCHIHEHAOYANGERCHIQIANGHUACHULIZUOYONG,GAIGONGYIDETUODANXIAOLVKEYIGAODA90%~95%(CHENGSHIWUSHUI)。

2.9 BABEGONGYI

在通常的废水生物处理工艺中,其污泥经浓缩的上层液或氧化处理后脱水滤液均需返回至主体工艺进行处理。由于污泥浓缩上层液或脱水滤液中富含氮,因而其向主体工艺的返回将增加主体工艺的处理负荷,从而影响处理出水中氮的指标。BABE在运行过程中将以A/O方式运行的处理工艺主流程中回流污泥的一部分分流入BABE间歇曝气池,BABE 所处理的对象为含有高浓度的TN的污泥浓缩上层液或污泥脱水滤液。通过BABE池的间歇曝气运行,不仅有效地延长了处理工艺的污泥龄,并可对其进液中的氮实现充分的硝化作用,同时由于BABE池的良好消化条件,即较低的有机负荷及良好的温度控制(一般将温度控制在30℃),有效地提高了污泥中硝化菌的数量。BABE池经间歇曝气后富含硝化菌的混合液、内回流与进水一起进入A/O工艺主流程,可实现充分的反硝化脱氮,强化了系统对氮的去处作用。
3 生化联合法

WUHUAFANGFAZAICHULIGAONONGDUANDANFEISHUISHIBUHUIYINWEIANDANNONGDUGUOGAOERSHOUDAOXIANZHI,DANSHIBUNENGJIANGANDANNONGDUJIANGDAOZUGOUDI(RU100mg/LYIXIA)。ERSHENGWUTUODANHUIYINWEIGAONONGDUYOULIANHUOZHEYAXIAOSUANYANDANERSHOUDAOYIZHI。SHIJIYINGYONGZHONGCAIYONGSHENGHUALIANHEDEFANGFA,ZAISHENGWUCHULIQIANXIANDUIHANGAONONGDUANDANDEFEISHUIJINXINGWUHUACHULI。LIRU:SHENGWUHUOXINGTANLIUHUACHUANG, MO-SHENGWUFANYINGQIJISHU(MBR)DENG。BENCHUJINJIESHAOMO-SHENGWUFANYINGQIJISHU(MBR)

MO-SHENGWUFANYINGQI(MembraneBio-Reactor,MBR)WEIMOFENLIJISHUYUSHENGWUCHULIJISHUYOUJIJIEHEZHIXINXINGTAIFEISHUICHULIXITONG。SHIYIZHONGYOUMOFENLIDANYUANYUSHENGWUCHULIDANYUANXIANGJIETAIDEXINXINGSHUICHULIJISHU,YIMOZUJIANQUDAIERCHENCHIZAISHENGWUFANYINGQIZHONGBAOCHIGAOHUOXINGWUNINONGDUJIANSHAOWUSHUICHULISHESHIZHANDI,BINGTONGGUOBAOCHIDIWUNIFUHEJIANSHAOWUNILIANG。ZHUYAOLIYONGCHENJINYUHAOYANGSHENGWUCHINEIZHIMOFENLISHEBEIJIELIUCAONEIDEHUOXINGWUNIYUDAFENZIGUTIWU。YINCIXITONGNEIHUOXINGWUNI(MLSS)NONGDUKETISHENGZHI10,000mg/L,WUNILING(SRT)KEYANZHANG30TIANYISHANG,YURUCIGAONONGDUXITONGKEJIANGDISHENGWUFANYINGCHITIJI,ERNANJIANGJIEDEWUZHIZAICHULICHIZHONGYIKEBUDUANFANYINGERJIANGJIE。GUZAIMOZHIZAOJISHUBUDUANTISHENGZHIYUANXIA,MBRCHULIJISHUJIANGGENGJIACHENGSHUBINGXIYINZHEQUANSHIJIEHUANJINGBAOHUGONGYEDEMUGUANG。

常见的高氨氮废水处理工艺的弱点:

1)无论是“蒸氨(汽提)或吹脱+A/O或吹脱+化学沉淀”,都离不开高投资、高运行成本的预处理工艺。“蒸氨”一次性投资太大,“吹脱”动力消耗太大。
           
2)续接A/O法时不仅投资高,而且占地面积大,对预处理出水的要求苛刻(如NH3-N必须小于300mg/l,汽提或吹脱法对超过5000mg/l以上的高浓度氨氮废水根本达不到这个要求,于是只能用成倍的清水稀释)。
           
3)续接化学沉淀法虽然投资和占地面积都比A/O法小,但它药剂的消耗量太大,N:P:Mg之比都在1:1.1-1.2,处理药剂成本太高,而且出水也不可能达到国家一级或二级排放标准。

氨氮废水

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相关标签:氨氮废水,氨氮废水处理,氨氮废水处理商家

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