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网(Wang)站(Zhan)首(Shou)页(Ye) > 公(Gong)司(Si)新(Xin)闻(Wen) > 苏(Su)州(Zhou)理(Li)则(Ze)环(Huan)保(Bao)科(Ke)技(Ji)有(You)限(Xian)公(Gong)司(Si)为(Wei)您(Nin)介(Jie)绍(Shao)什(Shi)么(Me)是(Shi)工(Gong)业(Ye)废(Fei)...

苏(Su)州(Zhou)理(Li)则(Ze)环(Huan)保(Bao)科(Ke)技(Ji)有(You)限(Xian)公(Gong)司(Si)为(Wei)您(Nin)介(Jie)绍(Shao)什(Shi)么(Me)是(Shi)工(Gong)业(Ye)废(Fei)水(Shui)cod

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苏(Su)州(Zhou)理(Li)则(Ze)环(Huan)保(Bao)科(Ke)技(Ji)有(You)限(Xian)公(Gong)司(Si)为(Wei)您(Nin)介(Jie)绍(Shao)什(Shi)么(Me)是(Shi)工(Gong)业(Ye)废(Fei)水(Shui)COD

工(Gong)业(Ye)废(Fei)水(Shui)COD:(?)水(Shui)中(Zhong)的(De)还(Huan)原(Yuan)性(Xing)物(Wu)质(Zhi)有(You)各(Ge)种(Zhong)有(You)机(Ji)物(Wu)、(?)亚(Ya)硝(Xiao)酸(Suan)盐(Yan)、(?)硫(Liu)化(Hua)物(Wu)、(?)亚(Ya)铁(Tie)盐(Yan)等(Deng)。(?)但(Dan)主(Zhu)要(Yao)的(De)是(Shi)有(You)机(Ji)物(Wu)。(?)因(Yin)此(Ci),(?)化(Hua)学(Xue)需(Xu)氧(Yang)量(Liang)((?)COD)(?)又(You)往(Wang)往(Wang)作(Zuo)为(Wei)衡(Heng)量(Liang)水(Shui)中(Zhong)有(You)机(Ji)物(Wu)质(Zhi)含(Han)量(Liang)多(Duo)少(Shao)的(De)指(Zhi)标(Biao)。(?)化(Hua)学(Xue)需(Xu)氧(Yang)量(Liang)越(Yue)大(Da),(?)说(Shuo)明(Ming)水(Shui)体(Ti)受(Shou)有(You)机(Ji)物(Wu)的(De)污(Wu)染(Ran)越(Yue)严(Yan)重(Zhong)。(?) 化(Hua)学(Xue)需(Xu)氧(Yang)量(Liang)((?)COD)(?)的(De)测(Ce)定(Ding),(?)随(Sui)着(Zhuo)测(Ce)定(Ding)水(Shui)样(Yang)中(Zhong)还(Huan)原(Yuan)性(Xing)物(Wu)质(Zhi)以(Yi)及(Ji)测(Ce)定(Ding)方(Fang)法(Fa)的(De)不(Bu)同(Tong),(?)其(Qi)测(Ce)定(Ding)值(Zhi)也(Ye)有(You)不(Bu)同(Tong)。(?)目(Mu)前(Qian)应(Ying)用(Yong)zui普(Pu)遍(Bian)的(De)是(Shi)酸(Suan)性(Xing)高(Gao)锰(Meng)酸(Suan)钾(Jia)氧(Yang)化(Hua)法(Fa)与(Yu)重(Zhong)铬(Ge)酸(Suan)钾(Jia)氧(Yang)化(Hua)法(Fa)。(?)高(Gao)锰(Meng)酸(Suan)钾(Jia)((?)KMnO4)(?)法(Fa),(?)氧(Yang)化(Hua)率(Lu)较(Jiao)低(Di),(?)但(Dan)比(Bi)较(Jiao)简(Jian)便(Bian),(?)在(Zai)测(Ce)定(Ding)水(Shui)样(Yang)中(Zhong)有(You)机(Ji)物(Wu)含(Han)量(Liang)的(De)相(Xiang)对(Dui)比(Bi)较(Jiao)值(Zhi)及(Ji)清(Qing)洁(Jie)地(Di)表(Biao)水(Shui)和(He)地(Di)下(Xia)水(Shui)水(Shui)样(Yang)时(Shi),(?)可(Ke)以(Yi)采(Cai)用(Yong)。(?)重(Zhong)铬(Ge)酸(Suan)钾(Jia)((?)K2Cr2O7)(?)法(Fa),(?)氧(Yang)化(Hua)率(Lu)高(Gao),(?)再(Zai)现(Xian)性(Xing)好(Hao),(?)适(Shi)用(Yong)于(Yu)废(Fei)水(Shui)监(Jian)测(Ce)中(Zhong)测(Ce)定(Ding)水(Shui)样(Yang)中(Zhong)有(You)机(Ji)物(Wu)的(De)总(Zong)量(Liang)。(?) 有(You)机(Ji)物(Wu)对(Dui)工(Gong)业(Ye)水(Shui)系(Xi)统(Tong)的(De)危(Wei)害(Hai)很(Hen)大(Da)。(?)含(Han)有(You)大(Da)量(Liang)的(De)有(You)机(Ji)物(Wu)的(De)水(Shui)在(Zai)通(Tong)过(Guo)除(Chu)盐(Yan)系(Xi)统(Tong)时(Shi)会(Hui)污(Wu)染(Ran)离(Li)子(Zi)交(Jiao)换(Huan)树(Shu)脂(Zhi),(?)特(Te)别(Bie)容(Rong)易(Yi)污(Wu)染(Ran)阴(Yin)离(Li)子(Zi)交(Jiao)换(Huan)树(Shu)脂(Zhi),(?)使(Shi)树(Shu)脂(Zhi)交(Jiao)换(Huan)能(Neng)力(Li)降(Jiang)低(Di)。(?)有(You)机(Ji)物(Wu)在(Zai)经(Jing)过(Guo)预(Yu)处(Chu)理(Li)时(Shi)((?)混(Hun)凝(Ning)、(?)澄(Cheng)清(Qing)和(He)过(Guo)滤(Lu))(?),(?)约(Yue)可(Ke)减(Jian)少(Shao)50%,(?)但(Dan)在(Zai)除(Chu)盐(Yan)系(Xi)统(Tong)中(Zhong)无(Wu)法(Fa)除(Chu)去(Qu),(?)故(Gu)常(Chang)通(Tong)过(Guo)补(Bu)给(Gei)水(Shui)带(Dai)入(Ru)锅(Guo)炉(Lu),(?)使(Shi)炉(Lu)水(Shui)pH值(Zhi)降(Jiang)低(Di)。(?)有(You)时(Shi)有(You)机(Ji)物(Wu)还(Huan)可(Ke)能(Neng)带(Dai)入(Ru)蒸(Zheng)汽(Qi)系(Xi)统(Tong)和(He)凝(Ning)结(Jie)水(Shui)中(Zhong),(?)使(Shi)pH降(Jiang)低(Di),(?)造(Zao)成(Cheng)系(Xi)统(Tong)腐(Fu)蚀(Shi)。(?)在(Zai)循(Xun)环(Huan)水(Shui)系(Xi)统(Tong)中(Zhong)有(You)机(Ji)物(Wu)含(Han)量(Liang)高(Gao)会(Hui)促(Cu)进(Jin)微(Wei)生(Sheng)物(Wu)繁(Fan)殖(Zhi)。(?)因(Yin)此(Ci),(?)不(Bu)管(Guan)对(Dui)除(Chu)盐(Yan)、(?)炉(Lu)水(Shui)或(Huo)循(Xun)环(Huan)水(Shui)系(Xi)统(Tong),(?)COD都(Du)是(Shi)越(Yue)低(Di)越(Yue)好(Hao),(?)但(Dan)并(Bing)没(Mei)有(You)统(Tong)一(Yi)的(De)限(Xian)制(Zhi)指(Zhi)标(Biao)。(?)在(Zai)循(Xun)环(Huan)冷(Leng)却(Que)水(Shui)系(Xi)统(Tong)中(Zhong)COD((?)KMnO4法(Fa))(?)>5mg/L时(Shi),(?)水(Shui)质(Zhi)已(Yi)开(Kai)始(Shi)变(Bian)差(Cha)。(?)

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