排序方式: 共有33条查询结果,搜索用时 15 毫秒
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在染料中间体红色基B,紫酱色基GP的生产过程中,全产生降解处理的废水,采用中和隔油-生物接触氧化-电解脱色工艺处理可达标准排放。试验结果表明,硝化废酸液和水解母液的混合废水经过中和隔油处理后,CODcr的去除率可达到56%以上,而BOD5/CDOcr的比值可在从0.22提高到0.5以上;再经生物接触氧化处理后,CODcr的去除率在88%以上,BOD5的去除率在92%以上;最后,电解处理能使CODc 相似文献
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The properties of electro-activated (EA) aqueous solutions as well as the dynamics of their changes were considered in the current study using aqueous solutions of NaCl and NaHCO3. The concentrations of the salt solutions were 0.5, 0.25, 0.125 and 0.05 M. The tests were performed at the DC current densities of 25, 37.5, and 50 Å/m2. The electro-activation reactor consisted of three individual cells assembled together and separated by anion-exchange (AEM) and cation-exchange (CEM) membranes. During the experiments, four configurations of the membrane placements and solutions concentrations were studied. The obtained results showed the dynamics of the electro-activation process that allows obtaining electro-activated solutions with targeted properties such as pH and oxydo-reduction potential (ORP). It was possible to obtain electro-activated solutions at the anodic side (acid anolyte) with pH of 3.0, 3.5, and 4.0 and ORP of +1100 ± 15 mV when NaCl solution was used as electrolyte. Furthermore, several types of electro-activated solutions with high redox potential (ORP = +921 ± 12 mV) and neutral pH (6.48 ± 0.05) were obtained on the anode side when sodium carbonate was used. At the same time, two types of solutions, one with acid pH (2.14 ± 0.14) and the other one with alkaline pH (10.46 ± 0.03) with ORP = +689 ± 10 and 110 ± 21 mV, respectively, were obtained in the central compartment which considered as electro-activated solutions obtained by means of noncontact electro-activation. 相似文献
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蒽醌染料的电解处理研究 总被引:18,自引:0,他引:18
用复极性固定床电解槽(BPBC)对蒽醌染料进行电解处理研究.结果表明BPBC可以破坏染料分子结构中的发色共轭体系,色度和CODcr的去出率分别达到98%和85%以上,对总氮的去除率也达到60%以上 相似文献
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针对裂解装置催化再生尾气焚烧废气经海水脱硫后二氧化硫的监测,利用碘量法和定电位电解法同时测定二氧化硫的浓度,并对结果进行了比较和校验,同时对废气中的干扰因素进行分离试验。结果表明,碘量法和定电位电解法测定裂解装置催化再生尾气焚烧废气中的二氧化硫,两种方法测定结果无显著性差异。 相似文献
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铁炭微电解法处理黄连素废水应用研究 总被引:2,自引:0,他引:2
黄连素废水成分复杂,COD高且难降解,废水可生化性差,对环境造成较大污染。沈阳某制药总厂黄连素废水采用深井曝气工艺处理。该方法存在需要大量清水稀释、运行成本高、处理效果不佳等缺点。内电解的基本原理是利用铁屑中的铁和炭组分构成微小原电池的正极和负极,以充入的废水为电解质溶液,发生氧化-还原反应,形成原电池。利用内电解预处理黄连素废水,COD除去率高达93.1%,并可提高废水的可生化性,废水的的BOD5/CODCr值由处理前的0.08提高到0.41,为后续生化处理和处理后废水达标排放奠定了基础,且运行成本低,易于管理。 相似文献