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移动床生物膜反应器（MBBR）去除含盐废水中苯酚的动力学研究

Kinetic studies on the removal of phenol by MBBR from saline wastewater.

作者信息

Ahmadi Mehdi, Jaafarzadeh Neamat, Rahmat Zeinab Ghaed, Babaei Ali Akbar, Alavi Nadali, Baboli Zeinab, Niri Mehdi Vosoughi

机构信息

Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

出版信息

J Environ Health Sci Eng. 2017 Oct 26;15:22. doi: 10.1186/s40201-017-0284-0. eCollection 2017.

DOI:10.1186/s40201-017-0284-0
PMID:29093820
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5659044/
Abstract

BACKGROUND

Phenols are chemical compounds which are included in the high priority of pollutants by environmental protection agency (USEPA). The presence of high concentrations of phenols in wastewaters like oil refineries, petrochemical plants, olive oil, pesticide production and oil field operations contain high soluble solids (TDS) and in an olive oil plant, wastewater is acidic, high salty and phenol concentrations are in the range of 0.1- 1%.

METHODS

Kinetic parameters were calculated according to Monod, Modified Stover- Kincannon, Hamoda and Haldane models. The influence of different initial phenol concentrations on the biodegradation rate was performed. The concentrations of phenol varied from 0 to 500 mgl.

RESULTS

The value of K in saline phenolic wastewater in attached growth systems was higher than suspended growth systems that represented a higher phenol inhibition in suspended growth systems. It was obvious that the best model fitting the obtained data are Hamoda model and the Modified Stover-Kincannon model, having highest values of 0.991 and 1, respectively. The value of K in saline phenolic wastewater in attached growth system was higher than suspended growth systems which represented a higher phenol inhibition in suspended growth systems.

CONCLUSIONS

Hamoda model and the Modified Stover-Kincannon model having highest R2 value of 0.991 and 1, respectively, and also predicting reasonable kinetic coefficient values.

摘要

背景

酚类是环境保护局（美国环境保护局）列为高优先级污染物的化合物。炼油厂、石化厂、橄榄油厂、农药生产厂和油田作业等废水中存在高浓度酚类，这些废水含有高可溶性固体（总溶解固体），在橄榄油厂中，废水呈酸性、高盐，酚浓度在0.1%至1%范围内。

方法

根据莫诺德模型、修正的斯托弗 - 金坎农模型、哈莫达模型和霍尔丹模型计算动力学参数。研究了不同初始酚浓度对生物降解速率的影响。酚浓度在0至500毫克/升之间变化。

结果

在附着生长系统中，含盐酚类废水中的K值高于悬浮生长系统，这表明悬浮生长系统中酚抑制作用更强。显然，最适合所得数据的模型是哈莫达模型和修正的斯托弗 - 金坎农模型，其R²值分别最高，为0.991和1。在附着生长系统中，含盐酚类废水中的K值高于悬浮生长系统，这表明悬浮生长系统中酚抑制作用更强。

结论

哈莫达模型和修正的斯托弗 - 金坎农模型的R²值分别最高，为0.991和1，并且还预测了合理的动力学系数值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/1e619db587a3/40201_2017_284_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/6ae407199ecb/40201_2017_284_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/b2e0e30107a6/40201_2017_284_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/a0c2af1d2018/40201_2017_284_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/bb486103be2a/40201_2017_284_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/28999067731d/40201_2017_284_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/1e619db587a3/40201_2017_284_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/6ae407199ecb/40201_2017_284_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/b2e0e30107a6/40201_2017_284_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/a0c2af1d2018/40201_2017_284_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/bb486103be2a/40201_2017_284_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/28999067731d/40201_2017_284_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f561/5659044/1e619db587a3/40201_2017_284_Fig6_HTML.jpg

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