The Removal of Chlorinated Phenolic Compounds from Chlorine Bleaching Effluents Using Thermophilic Anaerobic Processes
The Removal of Chlorinated Phenolic Compounds from Chlorine Bleaching Effluents Using Thermophilic Anaerobic Processes
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使用高温厌氧工艺去除氯漂白废水中的氯化酚类化合物
DOI：
10.2166/wst.1994.0730
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发表时间：
1994
影响因子：
2.7
通讯作者：
J. Rintala
中科院分区：
文献类型：
--
作者：
R. Lepistö;J. Rintala
采用四种不同类型的厌氧工艺研究了软木漂白液中氯代酚类化合物（CPC）的耐热（55℃）厌氧去除：上流式厌氧污泥毯（UASB）反应器（R1）；富硫酸盐（R2）的UASB反应器；带再循环的UASB反应器（R3）；带再循环的固定床反应器（R4）。用气相色谱法分析了16种CPCs的浓度。在所有过程中，在漂白的牛皮厂废水（BKME）中检测到的大多数氯化酚、儿茶酚、愈创木酚和对苯二酚都被消除或减少了80-95%。然而，2,4- dcp, 2,6- dcp,4,5- dcg, 3,4,5- tcc和TeCC在所有反应器中都被积累或仅部分去除，除了在R4中，高浓度时它们显着减少。所有反应器去除30-70%的COD和25-67%的可吸附有机卤化物（AOX）。再循环反应器的去除率略高于其他反应器，而硫酸盐的添加对其去除率无明显影响。高浓度的BKME降低了COD的去除效率，但对CPC的去除没有影响。
Thermophilic (55°C) anaerobic removal of chlorinated phenolic compounds (CPC) from softwood bleaching effluents was studied using four different types of anaerobic processes: an upflow anaerobic sludge blanket (UASB) reactor (R1); a UASB reactor enriched with sulfate (R2); a UASB reactor with recirculation (R3); and a fixed bed reactor with recirculation (R4). The concentrations of 16 CPCs were analyzed by gas Chromatography. In all processes most of the chlorinated phenols, catechols, guaiacols, and hydroquinons detected in the bleached kraft mill effluent (BKME) were either eliminated or reduced by as much as 80-95%. However, 2,4-DCP, 2,6-DCP, 4,5-DCG, 3,4,5-TCC, and TeCC were accumulated or only partially removed in all reactors, except in R4 where at high concentrations they were significantly reduced. All the reactors removed 30-70% of the COD and 25-67% of the adsorbable organic halides (AOX). The reactors with recirculation had slightly higher removal efficiencies than the other reactors, while the addition of sulfate had no apparent effect. High concentrations of BKME reduced the COD removal efficiency but not the CPC removal.