{"title":"Ecotoxicological Evaluation of Paint Industrial Effluent Post-Treated with Fenton-Type Coagulation","authors":"Thayrine Dias Carlos, Rone Silva Barbosa, Angelo Pallini, Grasiele Soares Cavallini, Renato Almeida Sarmento","doi":"10.1007/s11270-024-07620-5","DOIUrl":null,"url":null,"abstract":"<div><p>Effluents from the paint industry released into water bodies without treatment contain a large load of organic matter, metals, suspended solids, and pigments that are responsible for the contamination of aquatic ecosystems. Therefore, in addition to conventional treatment processes, advanced processes are needed to reduce harmful effects on the environment, with advanced oxidative processes (AOPs) being an alternative for treating these wastewaters. Fenton-type coagulation is a combination of the coagulation process and Fenton-type (AOP) that replaces traditional reagents (H<sub>2</sub>O<sub>2</sub> + Fe<sup>2+</sup>) with peracetic acid + Fe<sup>3+</sup> in the attempt at reduced toxicity and improved efficiency in the removal of contaminants. This study aimed to obtain ecotoxicological data on effluents from the paint industry, raw and post-treated with Fenton-type coagulation, using the planarian species <i>Girardia tigrina</i> as a bioindicator of contamination. The acute toxicity bioassay results were not statistically significant. Chronic toxicity tests demonstrated few toxic effects on organisms exposed to the treated effluent. The locomotion of the planarians was reduced in the raw effluent. Exposure to raw effluent also negatively affected the development and reproductive parameters of the organisms, resulting in delayed regeneration of the blastema, photoreceptors, and auricles, in addition to a reduction in the number of cocoons and fertility, which did not occur when planarians were exposed to the treated effluent. The results showed that treating paint effluent with Fenton-type coagulation reduces effluent toxicity.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-024-07620-5","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Effluents from the paint industry released into water bodies without treatment contain a large load of organic matter, metals, suspended solids, and pigments that are responsible for the contamination of aquatic ecosystems. Therefore, in addition to conventional treatment processes, advanced processes are needed to reduce harmful effects on the environment, with advanced oxidative processes (AOPs) being an alternative for treating these wastewaters. Fenton-type coagulation is a combination of the coagulation process and Fenton-type (AOP) that replaces traditional reagents (H2O2 + Fe2+) with peracetic acid + Fe3+ in the attempt at reduced toxicity and improved efficiency in the removal of contaminants. This study aimed to obtain ecotoxicological data on effluents from the paint industry, raw and post-treated with Fenton-type coagulation, using the planarian species Girardia tigrina as a bioindicator of contamination. The acute toxicity bioassay results were not statistically significant. Chronic toxicity tests demonstrated few toxic effects on organisms exposed to the treated effluent. The locomotion of the planarians was reduced in the raw effluent. Exposure to raw effluent also negatively affected the development and reproductive parameters of the organisms, resulting in delayed regeneration of the blastema, photoreceptors, and auricles, in addition to a reduction in the number of cocoons and fertility, which did not occur when planarians were exposed to the treated effluent. The results showed that treating paint effluent with Fenton-type coagulation reduces effluent toxicity.
期刊介绍：
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation.
Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.
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