Fe~(2+)活化过硫酸钠技术预处理焦油蒸馏废水
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摘要
采用Fe~(2+)活化Na_2S_2O_8技术处理实际焦油蒸馏废水。首先通过正交试验考察了Na_2S_2O_8初始浓度、Fe~(2+)初始浓度、pH以及温度等条件对稀释后焦油蒸馏废水COD去除率的影响规律,然后通过单因素实验确定了其最佳反应条件。实验结果表明,当p H为7.00,Na_2S_2O_8初始浓度为20mmol/L,Fe~(2+)初始浓度为20 mmol/L条件下,在30℃降解反应120 min,其化学需氧量(COD)去除率为53.5%,总有机碳(TOC)去除率为62.2%,降解过程遵循指数衰减规律,为焦油蒸馏废水的预处理技术提供了一条新的途径。
The Fe~(2+) activated Na_2S_2O_8 technology was used to treat the actual tar distillation wastewater. Firstly, the effect of initial concentration of Na_2S_2O_8, initial concentration of Fe~(2+), pH and temperature on the COD removal rate of diluted tar distillation wastewater was investigated by orthogonal test. Then the optimal reaction conditions were determined by single factor experiments. The experimental results showed that when the pH was 7.00, the initial concentration of Na_2S_2O_8 was 20 mmol/L, and the initial concentration of Fe~(2+) was 20 mmol/L, the degradation reaction was performed at 30°C for 120 min,the removal rate of COD was 53.5%,the removal rate of carbon(TOC) was 62.2%, and the degradation process followed the law of exponential decay. The paper can provide a new approach for the pretreatment of tar distillation wastewater.
The Fe~(2+) activated Na_2S_2O_8 technology was used to treat the actual tar distillation wastewater. Firstly, the effect of initial concentration of Na_2S_2O_8, initial concentration of Fe~(2+), pH and temperature on the COD removal rate of diluted tar distillation wastewater was investigated by orthogonal test. Then the optimal reaction conditions were determined by single factor experiments. The experimental results showed that when the pH was 7.00, the initial concentration of Na_2S_2O_8 was 20 mmol/L, and the initial concentration of Fe~(2+) was 20 mmol/L, the degradation reaction was performed at 30°C for 120 min,the removal rate of COD was 53.5%,the removal rate of carbon(TOC) was 62.2%, and the degradation process followed the law of exponential decay. The paper can provide a new approach for the pretreatment of tar distillation wastewater.
引文
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[11]张楠,李建民,汪应灵.柠檬酸螯合Fe(Ⅲ)活化过硫酸盐降解活性艳红X-3B[J].工业水处理,2018,38(01):48-51.
[12]张炳烛,张钊,王昆亭,等.过硫酸盐非均相催化剂进展[J].应用化工,2018,47(01):176-180.
[13]史宸菲,贾淑敏,李雨濛,等.水稻秸秆生物炭-过硫酸盐去除水中p-硝基酚[J].化工环保,2017,37(06):632-637.
[14]李永涛,赖连珏,岳东.无机阴离子对热活化过硫酸盐体系中降解MDEA模拟废水的影响[J].环境工程学报:1-7.
[15]蒋梦迪,张清越,季跃飞,等.热活化过硫酸盐降解三氯生[J/OL].环境科学,2018(04):1-8.
[2]付本全,张垒,王丽娜,等.煤焦油深加工废水处理技术研究进展[J].化学工程与装备,2016(07):226-228.
[3]杜娟.煤焦油加氢项目的水污染源及废水预处理技术[J].工业用水与废水,2016,47(02):11-13+34.
[4]付本全,张云,刘霞,等.焦油深加工废水预处理实验研究[J].化学工程与装备,2017(11):264-267.
[5]徐仿海,雷辉.焦粉吸附-微波催化-芬顿试剂氧化法深度处理煤焦油加工废水的研究[J].当代化工,2016,45(03):481-484.
[6]刘占孟,徐礼春,赵杰峰,等.新型高级氧化技术处理垃圾渗滤液的研究进展[J].水处理技术,2018,44(01):7-12+25.
[7]孙怡,于利亮,黄浩斌,等.高级氧化技术处理难降解有机废水的研发趋势及实用化进展[J].化工学报,2017,68(05):1743-1756.
[8]曹煜彬,杨洪晓,朱祥伟.高级氧化工艺降解水体中PPCPs的研究进展[J].水处理技术,2017,43(06):18-23.
[9]夏文君,刘锋,郝尚斌,等.石墨烯负载铁锰氧化物活化过一硫酸盐降解金橙G[J].环境科学,2018(05):1-13
[10]韩东晖,李瑛,李开明,应光国.UV强化草酸络合Fe~(3+)活化过硫酸盐氧化降解苯胺[J].环境科学,2018(09):1-10
[11]张楠,李建民,汪应灵.柠檬酸螯合Fe(Ⅲ)活化过硫酸盐降解活性艳红X-3B[J].工业水处理,2018,38(01):48-51.
[12]张炳烛,张钊,王昆亭,等.过硫酸盐非均相催化剂进展[J].应用化工,2018,47(01):176-180.
[13]史宸菲,贾淑敏,李雨濛,等.水稻秸秆生物炭-过硫酸盐去除水中p-硝基酚[J].化工环保,2017,37(06):632-637.
[14]李永涛,赖连珏,岳东.无机阴离子对热活化过硫酸盐体系中降解MDEA模拟废水的影响[J].环境工程学报:1-7.
[15]蒋梦迪,张清越,季跃飞,等.热活化过硫酸盐降解三氯生[J/OL].环境科学,2018(04):1-8.