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甘肃快3

白炭黑生产废水处理工艺

2016-03-27 22:53:32 杭州沃腾膜工程有限公司 已读
本发明属一种化工废水处理技术领域,具体涉及一种白炭黑废水处理工艺。白炭黑生产废水经过预处理,使处理后的废水水质达到进入膜处理系统的水质要求,再通过膜过滤,在膜的一侧将废水中的硫酸钠富集至含量≥10%,另一侧出水达到回用水指标,返回生产系统回用。浓水经过冷冻结晶分离出芒硝和结晶母液进行分离得到芒硝,结晶母液返回膜浓缩系统,芒硝经过加热脱水的得到含量≥98%元明粉外卖;或将硫酸钠含量≥10%浓水直接利用蒸发器,蒸发结晶分离得到元明粉。通过较低的能耗实现水资源的循环利用和化工原料的回收。经过两种工艺的配合使用,处理单吨废水的能耗大大降低,整个处理系统水回收率≥92%;产品元明粉:硫酸钠含量≥98%。
权利要求(10)
1.白炭黑生产废水处理工艺,其特征在于:包括下列步骤: 1)预处理:调节生产废水的pH值为6-8,然后絮凝、沉降; 2)超滤:沉降后的上清液进入超滤系统; 3)纳滤膜过滤:超滤后的废水经过纳滤膜系统过滤后产生低浓水和浓盐水; 4)反渗透膜过滤:纳滤膜过滤后的低浓水经反渗透膜系统过滤,得到的脱盐水回用,反渗透浓水回到超滤系统; 5)浓水处理:纳滤膜过滤后的浓盐水经过冷冻结晶、结晶母液进入3)中进行浓缩,晶体经过升温热转化得到无水硫酸钠,经离心分离后干燥得到无水硫酸钠成品外卖;或纳滤膜过滤后的浓盐水经MVC蒸发器蒸发浓缩后,再结晶、离心分离、干燥得到无水硫酸钠成品外卖。
2.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤I)是通过加入氢氧化钠来调节废水的pH值。
3.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤I)中所用的絮凝剂为聚合氯化铝和聚丙烯酰胺,聚合氯化铝与废水按0.03~0.07:1000的比例添加,聚丙烯酰胺与废水按0.2~1.2:1O6比例添加。
4.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤2)中经超滤系统后的出水SDI值< 3。
5.根据权利要求1所述的白 炭黑生产废水处理工艺,其特征在于:所述步骤3)所述的纳滤膜过滤后的低浓水中硫酸钠含量< 2000mg/L。
6.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤3)所述的纳滤膜过滤后的高盐水中硫酸钠质量百分含量> 10%。
7.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤4)得到的脱盐水的电导率< 40μ S/ cm O
8.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤5)中的分离得到的母液回到MVC蒸发器内。
9.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤5)中方案一中热转化后离心分离得到的母液,重新进入冷冻结晶系统进行结晶。
10.根据权利要求1所述的白炭黑生产废水处理工艺,其特征在于:所述步骤5中MVC蒸发器产生的蒸汽凝结水回用;所述步骤5中干燥得到硫酸钠含量大于98%的元明粉。
说明

甘肃快3 BAITANHEISHENGCHANFEISHUICHULIGONGYI

JISHULINGYU

甘肃快3 [0001 ] BENFAMINGSHUYIZHONGHUAGONGFEISHUICHULIJISHULINGYU,JUTISHEJIYIZHONGBAITANHEIFEISHUICHULIGONGYI。

BEIJINGJISHU[0002] TONGGUODUIBAITANHEIFEISHUISHUIZHIDEFENXI,ZAOCHENGBAITANHEIFEISHUINANCHULIDEZHUYAOYUANYINYOULIANGBUFENZAOCHENG,YISHIXIANGDUIYUCHUANTONGHUAGONGFEISHUIHANNAYANLIANGJIAOGAO,NANYITONGGUOCHUANTONGDESHENGHUAHEWUHUAFANGFAQUCHU;ERSHIXIANGDUIYUGONGYEYUANLIAOSHENGCHANGONGYI,FEISHUIHANNAYANLIANGYOUJIAODI,SHIYONGCHUANTONGGONGYITIYANGONGYI,RUOSHAIYANGONGYI,ZHANDIMIANJIDA,RONGYIZAOCHENGJUBUTUDIYANJIANHUA,BUYIZAINEILUDIQUSHIYONG,SHIYONGSHANZHENGGONGYIDANDUNNENGHAOGUOGAO。MUQIANGUONEIXIANYOUJISHUZHONGDUIBAITANHEIFEISHUICHULIDEGONGYI,DADUOCAIYONGZHIJIESHANZHENGNONGSUOJIEJING,GAIGONGYIZHONGCHULIYIDUNFEISHUIJINZHENGQIXIAOHAOYIXIANGCHULIFEIYONGJIUGAODAZHENGQIXIAOHAO1.2t,HUOCAIYONGI~4XIAONONGSUOJIEJING,CHULIYIDUNFEISHUIXIAOHAOZHENGQIYUEWEI0.65~0.75t,DIANHAO2~5kWh ;ERBENFAMINGZHONGJIESHAODEBAITANHEIFEISHUIJINGNALVMOHOUZAIMODEYICENGFEISHUIZHONGLIUSUANNADENONGDUFUJIZHI9~20%,ZAIJINGGUOLENGDONGJIEJING、REZHUANHUADENGGONGYIDEDAOWUSHUILIUSUANNAHEKEHUIYONGZHENGFALENGNINGSHUI,CHULIYIDUNSHUIDEPINGJUNZHENGQIXIAOHAOWEI0.02~0.04t,DIANHAOWEI10~15kWh,RUOCAIYONGMVCJISHUDUIFUJIZHILIUSUANNAHANLIANGWEI9~20%FEISHUIJINXINGZHENGFAJIEJING,ZECHULIYIDUNSHUIDEPINGJUNZHENGQIXIAOHAOWEIot,DIANHAOWEI10~15kWh。

FAMINGNEIRONG

[0003] BENFAMINGDEMUDEZAIYU,KEFUXIANYOUJISHUDEBUZU,TIGONGLEYIZHONGBAITANHEIFEISHUICHULIGONGYI,BUJINHUISHOULEHUAGONGCHANPINYUANMINGFEN,ERQIEHAISHIXIANLESHUIZIYUANDEXUNHUANLIYONG。

[0004] WEIJIEJUESHANGSHUJISHUWENTI,BENFAMINGDEJISHUFANGANWEI:

BAITANHEISHENGCHANFEISHUIJINGGUOYUCHULI,SHICHULIHOUDEFEISHUISHUIZHIDADAOJINRUMOCHULIXITONGDESHUIZHIYAOQIU,ZAITONGGUOMOGUOLV,ZAIMODEYICEJIANGFEISHUIZHONGDELIUSUANNAFUJIZHIHANLIANG> 10%,LINGYICECHUSHUIDADAOHUIYONGSHUIZHIBIAO,FANHUISHENGCHANXITONGHUIYONG。NONGSHUIJINGGUOLENGDONGJIEJINGFENLICHUMANGXIAOHEJIEJINGMUYEJINXINGFENLIDEDAOMANGXIAO,JIEJINGMUYEFANHUIMONONGSUOXITONG,MANGXIAOJINGGUOJIARETUOSHUIDEDEDAOHANLIANG> 98%YUANMINGFENWAIMAI;HUOJIANGLIUSUANNAHANLIANG^ 10%NONGSHUIZHIJIELIYONGZHENGFAQI,ZHENGFAJIEJINGFENLIDEDAOYUANMINGFEN。TONGGUOJIAODIDENENGHAOSHIXIANSHUIZIYUANDEXUNHUANLIYONGHEHUAGONGYUANLIAODEHUISHOU。

[0005] BAITANHEIFEISHUIJINGGUOZHONGHEDIAOJIEpH、XUNING、CHENJIANG,SHANGQINGYEJINGGUOCHAOLVDADAOMOXITONGJINSHUISHUIZHI,MOCHULIXITONGJIANGFEISHUIZHONGLIUSUANNAFUJI,NONGSHUIJINRUHOUXUZHENGFA、JIEJINGXITONGJINXINGCHULI,DINONGSHUIJINRUFANSHENTOUXITONGDEDAOHANYANLIANGHEGEDETUOYANSHUI,GAISHUIKEZHIJIEYONGZUOXITONGHUIYONGSHUI。FEISHUIYUCHULIXITONGSHIBAITANHEIFEISHUIJINGGUOZHONGHEDIAOJIEJIANGpHZHIKONGZHIZAI61ZHIJIAN,ZAIFENBIEJIARUJUHELVHUALVHEJUBINGXIXIANANDENGXUNINGJIJINXINGXUNINGCHENJIANG,CHENJIANGHOUDEQINGYEJINGGUOCHAOLVDADAOCHUSHUI,MOXITONGJINSHUISHUIZHI。

甘肃快3 [0006] MOCHULIXITONGFENBIEWEINALVMOHEFANSHENTOUMOXITONGXIANGJIEHEDECHULIGONGYI,TONGGUONALVMOJIANGBAITANHEIFEISHUIZHONGDELIUSUANNAFUJI,NALVSUOCHANDEDINONGSHUIJINRUFANSHENTOUXITONG,CHANCHUHEGESHUIZHIDETUOYANSHUIJINRUXITONGHUIYONG。

[0007] NONGSHUICHULIXITONGFANGANYI:KEYITONGGUOLENGDONGJIEJING、REZHUANHUALIXINFENLI、GANZAO、BAOZHUANGDENGGONGYIDEDAOWUSHUILIUSUANNAHEKEHUIYONGZHENGFALENGNINGSHUI。GAIGONGYITONGGUOJIAODIDENENGHAOSHIXIANSHUIZIYUANDEXUNHUANLIYONGHEHUAGONGYUANLIAODEHUISHOU。JIAODIDENENGHAOSHIZHIMEICHULIYIDUNSHUIDEPINGJUNZHENGQIXIAOHAOWEI0.02~0.04t,DIANHAOWEI10~15kWh ;HUAGONGYUANLIAODEHUISHOUSHIZHIYUANMINGFENDEHUISHOU。FANGANER:KEYITONGGUOZHENGFA、LIXINFENLI、GANZAO、BAOZHUANGDEDEDAOCHENGPINWUSHUILIUSUANNAWAIMAI,QIZHONGZHENGFAXITONGZHONGDEHEXINSHEBEIWEIMVCZHENGFAQI,JINGGUODINENGHAODEZHENGFADEDAOYUANMINGFEN,TONGSHIKEHUISHOUZHENGFACHULAIDELENGNINGSHUI。TONGGUOJIAODIDENENGHAOSHIXIANSHUIZIYUANDEXUNHUANLIYONGHEHUAGONGYUANLIAODEHUISHOU。JIAODIDENENGHAOSHIZHIMEICHULIIDUNBABAITANHEIFEISHUIXIAOHAODIANLIANGYUEWEI10~15KWh,XIAOHAOZHENGQILIANGKEHULVEBUJI;HUAGONGYUANLIAODEHUISHOUSHIZHIYUANMINGFENDEHUISHOU。

[0008] QIANSHUGONGYIZHONGSUOSHUDEHESHIDENALVMOHEFANSHENTOUMO,ZHUYAOXUANYONGNAIGAOYA,KANGKERONGGUIWURANJIAOQIANGDENALVMO,FANSHENTOUMO,XUANYONGPUTONGSHIYONGSHOUMINGJIAOZHANGDEGONGYEFANSHENTOUMO。MVCZHENGFAQICAIZHIXUXUANYONGKANGYANFUSHIXINGJIAOQIANGDETAICAIHUOSM0254BUXIUGANG。

[0009] BENFAMINGDEYOUYIXIAOGUOSHI:WEILEYOUXIAODETUOCHUBAITANHEIFEISHUIZHONGLIUSUANNA,BENFAMINGRENTICHUNALVMOHEFANSHENTOUMOXIANGJIEHEDEGONGYI,XIANTONGGUODUIBAITANHEIFEISHUIZHONGHEDIAOJIEPH、XUNING、CHENJIANG,SHANGQINGYEJINGGUOCHAOLVDADAOMOXITONGJINSHUISHUIZHI,ZAIJIANGCHAOLVHOUDEFEISHUIJINGGUOHESHIDENALVMOHEHESHIDEFANSHENTOUMOLIANGJIMOGUOLV,SHIXIANFEISHUIZHONGLIUSUANNAZAINONGSHUICEJINXINGFUJITONGSHI,DINONGSHUICECHANSHUIDIANDAOLVJIANGDAO≤40μ S/ cmDADAOHUIYONGDEMUDE;MOXITONGCHANCHUNONGSHUIJINGGUO。

[0010] HESHIDEGONGYIGAOWENNONGSUO、JIEJINGDEDAOWUSHUILIUSUANNA,ZAIJINGGANZAODEDAOHANLIANG≥ 98%DELIUSUANNACHANPIN。JINGGUOLIANGZHONGGONGYIDEPEIHESHIYONG,CHULIDANDUNFEISHUIDENENGHAODADAJIANGDI,ZHENGGECHULIXITONGSHUIHUISHOULV≥ 92% ;CHANPINYUANMINGFEN:LIUSUANNAHANLIANG≥98% ;FANGANYI:MEICHULIYIDUNSHUIDEPINGJUNZHENGQIXIAOHAOWEI0.02~

甘肃快3 0.04t,DIANHAOWEI10~15kWh ;FANGANER:MEICHULIIDUNBAITANHEIFEISHUIDENENGHAOWEIDIANLIANGXIAOHAOWEI10~15kWh,ZHENGQIXIAOHAOKEHULVEBUJI;MEICHULIIDUNBAITANHEIFEISHUIYUANMINGFENHUISHOULIANGWEI:20~50kg ;MEICHULIIDUNBAITANHEIFEISHUIGAOPINZHISHUIDEHUISHOULIANGWEI:0.9DUN。

FUTUSHUOMING

[0011] TU1WEIBENFAMINGDEGONGYILIUCHENGKUANGTU;

TU2WEITONGGUOZHENGFA、LIXINFENLI、GANZAO、BAOZHUANGDEDAOCHENGPINWUSHUILIUSUANNADEGONGYILIUCHENGTU。

[0012] XIAMIANJIEHEFUTUHEJUTISHISHIFANGSHIDUIBENFAMINGZUOJINYIBUXIANGXISHUOMING。

JUTISHISHIFANGSHI

甘肃快3 [0013] JIANGLAIZIBAITANHEISHENGCHANCHEJIANDEFEISHUIlm3,QIZHONGLIUSUANNAZHILIANGHANLIANGYUEWEI3%,PHWEI4~6,ZAIJIAOBANDEQINGKUANGXIAJIARUZHILIANGBAIFENHANLIANGWEI32%DEQINGYANGHUANA,JIANGFEISHUIDEpHZHIDIAOJIEZHI6~8,ZAIFENBIEJIANGJUHELVHUALVYUFEISHUIAN0.03~0.07:1000DEBILITIANJIA,JUBINGXIXIANANYUFEISHUIAN0.2~1.2:1O6BILITIANJIA。XUNINGCHENJIANGlOmin,SHANGQINGYEJINRUCHAOLVXITONG,CHUQUSHUIZHONGDEXUANFUWUHEDAFENZIJIAOTI,CHAOLVHOUCEDINGCHUSHUISDIZHI≤3。

[0014] JIANGCHAOLVCHUSHUIHEHOUXUFANSHENTOUNONGSHUIJIAYAZHI4(T45barJINRUNALVXITONG,NALVDINONGCHANSHUI

0.77t,LIUSUANNAHANLIANG≤2000mg/L,NALVGAONONGCHANSHUI0.3t,LIUSUANNAHANLIANG≥10% ;NALVDINONGCHANSHUIJIAYAZHI20barJINRUFANSHENTOUXITONGDEDAO0.7tDIANDAOLV≤40 μ S/ cmDETUOYANSHUIJINRUXITONGHUIYONG。

[0015] NALVCHUSHUIKECAIYONG

NALVSUOCHANSHENGDENONGSHUIJINRUMVCZHENGFAQI,JINGUONONGSUO、JIEJING、LIXINFENLI、GANZAODEDAO0.03tLIUSUANNAHANLIANGDAYU98%DEYUANMINGFEN。

[0016] XIABIAOSHIDUICHUANTONGGONGYIHEFANGANZHONGDELIANGZHONGGONGYIDEBIJIAO。

 

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