Quality of treated wastewater: method validation of AOX

Cherif, S.; Fradj, R. Ben; Jrad, Amel

doi:10.1007/s00769-006-0209-6

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…Despite storage time is considered a critical aspect to retard chemical and biological reactions, the preservation conditions imposed in this study to the samples after sampling (pH<2 and inhibition of active chlorine) proved to be adequate. It must be highlighted that AOX is a lumped parameter [10] and the results obtained in this study indicate that no relevant loss of organic halides occur or that formation of AOX is prevented by neutralization of the residual oxidant present. In addition, storage time was not matrix-dependent.…”

Section: -mentioning

confidence: 69%

Influence of storage time of pulp and paper industry wastewaters in AOX determination

Soares

Marques

Rodrigues

2019

19th International Congress of Metrology (CIM2019)

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The feasibility of storing wastewater samples from pulp and paper industry during more than 5 days (time recommend by ISO 5667-3:2018) for AOX determination was addresses in this study. Samples were collected before and after the aerobic biological treatment of a Portuguese industry. Experimental protocol included AOX measurements at days 4, 5, 6, 8, 11, 13, 15, 18 and 20 after sampling. Results obtained indicate that storage time is not matrix-dependent and it can be extended up to 20 days, which clearly improves management of laboratory activities concerning AOX determination.

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Section: -mentioning

confidence: 69%

Influence of storage time of pulp and paper industry wastewaters in AOX determination

Soares

Marques

Rodrigues

2019

19th International Congress of Metrology (CIM2019)

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“…This method allows determining all types of adsorbable organic halogens, i.e., AOCl, AOBr, AOI and even AOF. The main problem of IC is the interfering effect of chloride, chlorate, perchlorate and sulfate that leads to overestimation of obtained results [110]. To eliminate the interfering effect, ultrasonic extraction-high temperature combustion absorption-ion chromatography can be applied with the limit of quantification of 0.1-0.5 mg•kg −1 [101].…”

Section: Determination Of Aoxmentioning

confidence: 99%

A Review on Adsorbable Organic Halogens Treatment Technologies: Approaches and Application

2023

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Halogen-containing organic substances have a detrimental and toxic impact on the environment and human health due to their high stability, carcinogenic effects, and ability to accumulate when ingested. The production and release of these substances have significantly increased in recent decades, resulting in a lack of effective treatment technologies. Adsorbable organic halogens (AOX), a specific parameter used to monitor pollution, represents the total amount of chlorinated, brominated, and iodinated organics that can be adsorbed on activated carbon from various environments. This paper provides an overview of selected articles from the past three decades (1990–2023) focusing on the primary natural and industrial sources of AOX. It also evaluates different determination techniques and a variety of removal approaches based on biological, physical, chemical, and combined processes. Additionally, the limitations and efficiency of these approaches are briefly characterized. While biochemical and physical methods have been limited by financial constraints and reduced efficiency, biological, chemical, and physicochemical techniques have shown significant potential in improving water quality. This knowledge can be valuable for the development of alternative water treatment techniques and underscores the importance of sustainable water usage.

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“…The source of these compounds in waters and soils are not sufficiently treated wastewater cellulose-paper and leachates from the landfills. The organic halogens are formed in wastewater from cellulose production in reaction of residues of organic leached out of the wood together with chlorine ions used in the cellulose bleaching [6,[38][39][40]. The chlorination products are highly toxic therefore the water increases its toxicity.…”

Section: Influence Of Other Organic Micropollutants On Tested Organismsmentioning

confidence: 99%

Influence of Selected Organic Micropollutants on Organisms

Włodarczyk‐Makuła

2017

Civil and Environmental Engineering Reports

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This article describes the toxicity of organic micropollutants on tested microorganisms. Itis a current issue because organic micropollutants are identified in all elements of environmental (surface water, ground water, soils) and in food products. The organic micropollutants include: polychlorinated dibenzodioxyns PCDD, polychlorinated dibenzofurans PCDF, polychlorinated biphenyls PCB, polycyclic aromatic hydrocarbons PAH, halogenated compounds and by-products of water treatment. Some organic compounds cause hazard for health and human life due to their estrogenic biological activity, carcinogenic, mutagenic or teratogenic activity. The influence on organisms indicators of these compounds based on literature data were presented. The level of TEQ (toxic equivalency) in response to organic chlorine derivatives (PCDDs, PCDF, PCBs) is usually determined by toxic equivalency factor (TEF). The International Agency for Research on Cancer classifies organic micropollutants as carcinogenic to humans (Group 1), possibly carcinogenic (Group 2A) or probably carcinogenic to humans (Group 2B).

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Quality of treated wastewater: method validation of AOX

Cited by 8 publications

References 1 publication

Influence of storage time of pulp and paper industry wastewaters in AOX determination

Influence of storage time of pulp and paper industry wastewaters in AOX determination

A Review on Adsorbable Organic Halogens Treatment Technologies: Approaches and Application

Influence of Selected Organic Micropollutants on Organisms

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