Abstract
Absorbable organic halogens (AOX) are a global parameter which refers to a group of chemical compounds that contain one or more chlorine, bromine or iodine atoms in their molecule and can easily adsorb on activated carbon. The global concern related to the occurrence of the AOX compounds in the environment is due to their toxic and mutagenic effects on aquatic organisms and their potential role as inhibitors of microorganism growth, even at AOX low concentrations. The purpose of this study was to analyze the presence, occurrence and composition of absorbable organic halogens in wastewater and sewage sludge. In addition, their genotoxicity effect on the environment was tested on a bacterial biological model. Daily mass loading, mass emission and fate of AOX parameter were investigated in two wastewater treatment plants (wastewater and sewage sludge samples) from Romania, Galati and Iasi. Their AOX daily mass loadings (151 and 55.4 g/day/1000people) and mass emissions into the environment (47.8 and 23.5 g/day/1000 people) for both locations were correlated with the concentration level of volatile organic compounds, chlorophenols, organochlorine pesticides and polychlorinated biphenyls from both wastewater and sewage sludge, respectively. Concentration levels of detected halogenated organic compounds (regulated by current standards) accounted only for a small percentage (3.70–14.5%) from the total AOX amount. An exception was observed in the case of dehydrated sludge samples where the identified compounds accounted for 80% of the AOX content from Iasi WWTP and 53% for Galati. Evaluating the genotoxic activity of AOX in sludge samples showed that genotoxicity was not induced up to 100 µg/mL dehydrated sludge.
Similar content being viewed by others
References
Adeleye AO, Jin HY, Di YN, Li DH, Chen JF, Ye Y (2016) Distribution and ecological risk of organic pollutants in the sediments and seafood of Yangtze estuary and Hangzhou bay, East China sea. Sci Total Environ 541:1540–1548
Barton DA, Payne TW (1999) Mechanisms of AOX removal during biological treatment. Water Sci Technol 40(11–12):297–303
Benabdallah El-Hadj T, Dosta J, Torres R, Mata-Alvarez J (2007) PCB and AOX removal in mesophilic and thermophilic sewage sludge digestion. Biochem Eng J 36:281–287
Bhat SA, Singh J, Singh K, Vig AP (2017) Genotoxicity monitoring of industrial wastes using plant bioassays and management through vermithechnology: a review. Agric Nat Resour 51(5):325–337
Buck R, Franklin J, Berger U, Conder JM, Cousins IT, de Voogt P, Astrup AJ, Kurunthachalam K, Scott AM, van Leeuwenkk SPF (2011) Perfluoroalkyl and polyfluoroalkyl substances in the environment: terminology, classification, and origins. Integr Environ Assess Manag 7:513–541
Chen W, Wang Y, Li Q, Yang Y, Wei X, Wang S, Lu Q, Sun X (2021) Contrast of sludge toxicity variation during treatment of wastewater containing mixed chlorophenols and single chlorophenol. Environ Eng Res 26(5):200335
Commission Decision (EU) 2019/70 (2019) Establishing the EU Ecolabel criteria for graphic paper and the EU Ecolabel criteria for tissue paper and tissue products
Deshmukh NS, Lapsiya KL, Savant DV, Chiplonkar SA, Yeole TY, Dhakephalkar PK, Ranade DR (2009) Up flow anaerobic filter for the degradation of adsorbable organic halides (AOX) from bleach composite wastewater of pulp and paper industry. Chemosphere 75:1179–1185
Ding C, Chen T, Li Z, Yan J (2015) Assessing and monitoring the ecotoxicity of pulp and paper wastewater for irrigating reed fields using the polyurethane foam unit method based on monitoring protozoal communities. Environ Sci Pollut Res 26:1–11
Erhardt CS, Basegio TM, Capela I, Rodríguez AL, Machado ÊL, Rodríguez DA, Tarelho LL, Bergmann CP (2021) AOX degradation of the pulp and paper industry bleaching wastewater using nZVI in two different agitation processes. Environ. Technol. Innov. 22:101420
ECHA European Chemical Agency - Guidance on the Biocidal Products Regulation (2016).
Garba ZN, Zhou W, Lawan I, Xiao W, Zhang M, Wang L, Chen L, Yuan Z (2019) An overview of chlorophenols as contaminants and their removal from wastewater by adsorption: a review. J Environ Manage 241:59–75
Jolibois B, Guerbet M (2005) Evaluation of industrial, hospital and domestic wastewater genotoxicity with the Salmonella fluctuation test and the SOS chromotest. Mutat Res 565:151–162
Kocak E (2015) Investigation of potential genotoxic activity using the SOS Chromotest for real paracetamol wastewater and the wastewater treated by the Fenton process. J Environ Health Sci Eng v 13:66
Kotowska U, Zalikowski M, Isidorov VA (2012) HS-SPME/GC–MS analysis of volatile and semi-volatile organic compounds emitted from municipal sewage sludge. Environ Monit Assess 184:2893–2907
Kumar B, Verma VK, Sharma CS, Akolkar AB (2014) Quick and easy method for determination of priority phenolic compounds in water and wastewater. J Xenobiot 4:46–52
Li Y, Lin T, Chen Y, Hu L, Guo Z, Zhang G (2012) Polybrominated diphenyl ethers (PBDEs) in sediments of the coastal East China Sea: occurrence, distribution and mass inventory. Environ Pollut 171:155–161
Meharg AA, Wright J, Osborn D (2000) Chlorobenzenes in rivers draining industrial catchments. Sci Total Environ 251(252):253–253
Muller G (2003) Sense or no-sense of the sum parameter for water soluble “adsorbable organic halogens” (AOX) and “absorbed organic halogens” (AOX-S18) for the assessment of organohalogens in sludges and sediments. Chemosphere 52:371–379
Nita-Lazar M, Gheorghe S, Anghelache A, Banciu A, Stoica C, Lucaciu I (2016a) Modulation of the bacterial defense mechanisms by various chemical structures. Rev Chim 67(8):1454–1457
Nita-Lazar M, Galaon T, Banciu A, Paun I, Stoica C, Lucaciu I (2016b) Screening of various harmful compounds in a new bacterial biological model. J Environ Prot Ecol 17:237–247
ORDER No. 344/708 of August 16, 2004 for the approval of the Technical Norms regarding the protection of the environment and especially of the soils, when using the sewage sludge in agriculture.
Quintero N, Stashenko EE, Fuentes JL (2012) The influence of organic solvents on estimates of genotoxicity and antigenotoxicity in the SOS chromotest. Genet Mol Biol 35(2):503–514
Rule KL, Ebbett VR, Vikesland PJ (2005) Formation of chloroform and chlorinated organics by free-chlorine-mediated oxidation of triclosan. Environ Sci Technol 29:3176–3185
Shomar B (2007) Sources of adsorbable organic halogens (AOX) in sludge of Gaza. Chemosphere 69:1130–1135
Soares MA, Marques M, Rodrigues MT (2019) Influence of storage time of pulp and paper industry wastewaters in AOX determination. 19th International congress of metrology, 20003.
Xie Y, Chen L, Liu R (2016) Oxidation of AOX and organic compounds in pharmaceutical wastewater in RSM-optimized-Fenton system. Chemosphere 155:217–224
Xie Y, Chen L, Liu R (2017) AOX contamination status and genotoxicity of AOX-bearing pharmaceutical wastewater. J Environ Sci 52:170–177
Xie Y, Chena L, Liu R, Tian JP (2018a) Reduction of AOX in pharmaceutical wastewater in the cathode chamber of bio-electrochemical reactor. Bioresour Technol 265:437–442
Xie YW, Chen LJ, Liu R, Tian JP (2018b) AOX contamination in Hangzhou Bay, China: Levels, distribution and point sources. Environ Pollut 235:462–469
Xu C, Zheng W, Lin L, Cheng L (2021) Removal of AOX in activated sludge of industrial chemical dyestuff with bimetallic Pd/Fe particles. Water 13:1543
Yuan R, Ramjaun SN, Wang Z, Liu J (2012) Photocatalytic degradation and chlorination of azo dye in saline wastewater: kinetics and AOX formation. Chem Eng J 192:171–178
Yuan P, Dong J, Zhao W, Zhuo M, Li S, Huang S, Li J (2019) Qualitative and quantitative assessment of genotoxins using SRRz lysis reporter under the control of a newly designed SOS responsive promoter in Escherichia coli. RCS Adv 9:35662
Zhang Y, Zang T, Yan B, Wei C (2020) Distribution characteristics of volatile organic compounds and contribution to ozone formation in a coking wastewater treatment plant. Int J Environ Res Public Health 17:553
Acknowledgements
This study was financial supported by the Romanian Executive Agency for Higher Education, Research and Development and Innovation (UEFISCDI), research project PN-III-P4-ID-PCCF-2016-0114 (acronym: RADAR).
Funding
The authors have not disclosed any funding.
Author information
Authors and Affiliations
Contributions
Florentina Laura Chiriac designed the experiments, performed VOCs and CPs analysis, and wrote the manuscript. Catalina Stoica carried out genotoxicity experiments and analyzed the data. Roxana-Elena Scutariu conducted OCPs and PCBs analysis. Florinela Pirvu took part in AOX determination. Iuliana Paun was responsible for sample preparation and resources. Vasile Iancu contributed to conceptualization and validation. Toma Galaon participated in supervision, reviewing and editing. Mihai Nita-Lazar was involved in conceptualization, supervision, project administration, and writing, reviewing and editing.
Corresponding author
Ethics declarations
Conflict of interest
All authors declare that they have no conflict of interest.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Chiriac, F.L., Stoica, C., Scutariu, RE. et al. Occurrence and fate of Adsorbable Organic Halogens (AOX) in two WWTPs from Romania. Arch Environ Contam Toxicol 82, 592–601 (2022). https://doi.org/10.1007/s00244-022-00923-w
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00244-022-00923-w