Detoxification and biodegradability enhancement of antibiotic production wastewater by hybrid process of resin adsorption and Fenton oxidation

IF 4.5 3区 工程技术 Q1 CHEMISTRY, APPLIED
Yan Liu, Yue Sun, Yi Tao
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引用次数: 0

Abstract

Antibiotic production wastewater exhibits high concentration of antibiotics and toxic intermediates, which would pose a serious threat to the ecological environment. The biodegradation methods are prevailing for this wastewater. However, it imposes a considerable toxic burden on biological treatment units in wastewater treatment plants (WWTPs), ultimately resulting in subpar treatment efficacy. For improving the biodegradability of antibiotic production wastewater, hybrid process of resin adsorption and Fenton oxidation was proposed. The adsorption experiments showed that NDA-150 exhibited removal rates of up to 99.1% and 94.8% for two key pollutants 8-hydroxyquinoline (8HQ) and o-aminophenol (OAP), respectively. The constant removal rates demonstrated stable performance and capacity of NDA-150 for practical industrial operation. The remaining high COD due to other organic contaminants in the effluent required the involvement of Fenton oxidation for the further processing. The results of single factor experiments and orthogonal tests showed that the COD removal rate of 56.5% could be realized under the optimal operating conditions. This work proposed a novel process which could alleviate obstacles between the antibiotic manufacture factories and biological treatment units, shed light on the mechanisms and feasibility of it, and provide a promising avenue for the toxicant organic industrial sewage.

Abstract Image

利用树脂吸附和 Fenton 氧化混合工艺提高抗生素生产废水的解毒和生物降解性
抗生素生产废水中含有高浓度的抗生素和有毒中间体,会对生态环境造成严重威胁。对于这种废水,目前普遍采用生物降解方法。然而,它给污水处理厂(WWTPs)的生物处理单元带来了相当大的毒性负担,最终导致处理效果不佳。为了提高抗生素生产废水的生物降解性,有人提出了树脂吸附和 Fenton 氧化的混合工艺。吸附实验表明,NDA-150 对两种主要污染物 8-羟基喹啉(8HQ)和邻氨基苯酚(OAP)的去除率分别高达 99.1%和 94.8%。恒定的去除率证明了 NDA-150 在实际工业运行中的稳定性能和处理能力。废水中其他有机污染物导致的 COD 仍较高,需要使用 Fenton 氧化法进行进一步处理。单因素实验和正交试验结果表明,在最佳操作条件下,COD 去除率可达 56.5%。这项工作提出了一种新工艺,可以缓解抗生素生产厂与生物处理单元之间的障碍,阐明了其机理和可行性,为有毒有机工业污水的处理提供了一条前景广阔的途径。
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来源期刊
Reactive & Functional Polymers
Reactive & Functional Polymers 工程技术-高分子科学
CiteScore
8.90
自引率
5.90%
发文量
259
审稿时长
27 days
期刊介绍: Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.
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