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In particular, the development of application technologies suitable for the relatively small piggeries is critical due to the time cost and space requirements of conventional biological methods. In this study, Electrochemical oxidation (EO) was selected to systematically explore the treatment performance of three different swine wastewaters by Ti4O7 anode. It was observed that the colors changed from dark brown to light yellow after 60 min treatment at 50 mA\/cm2, and the removal rates of turbidity and suspended solids ranged from 89.36% to 93.65% and 81.31% to 92.55%, respectively. The chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and total phosphorus (TP) of all the three swine wastewaters were simultaneously removed to a very low concentration in 120 min, especially for sample III, 61 \u00b1 9 mg\/L of COD, 6.6 \u00b1 0.4 mg\/L of NH3-N and 5.7 \u00b1 1.1 mg\/L of TP, which met the Discharge Standard of Pollutants for Livestock and Poultry Breeding (GB 18596-2001). Moreover, 70.93%\u201385.37% mineralization rates were also achieved in 120 min, confirming that EO treatment by Ti4O7 could efficiently remove the organic matters in wastewater. Excitation\u2013emission matrix (EEM) and UV-vis spectrum characterization results further proved that aromatic compounds and macromolecules in wastewater were rapidly removed, which played important roles in the mineralization processes. The findings here provided an efficient and environment-friendly technology for swine wastewater treatment.<\/jats:p>","DOI":"10.3390\/ijerph192113840","type":"journal-article","created":{"date-parts":[[2022,10,25]],"date-time":"2022-10-25T21:58:06Z","timestamp":1666735086000},"page":"13840","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4315-3002","authenticated-orcid":false,"given":"Hongyou","family":"Wan","sequence":"first","affiliation":[{"name":"School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China"},{"name":"Research Centre of Engineering and Technology for Synergetic Control of Environmental Pollution and Carbon Emissions of Henan Province, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruifeng","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China"},{"name":"College of Resources and Environmental Science, Henan Agricultural University, Zhengzhou 450002, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beibei","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Resources and Environmental Science, Henan Agricultural University, Zhengzhou 450002, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kehao","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huanhuan","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China"},{"name":"Research Centre of Engineering and Technology for Synergetic Control of Environmental Pollution and Carbon Emissions of Henan Province, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hailong","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"118570","DOI":"10.1016\/j.watres.2022.118570","article-title":"Effects of ammonia on electrochemical active biofilm in microbial electrolysis cells for synthetic swine wastewater treatment","volume":"219","author":"Wang","year":"2022","journal-title":"Water Res."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1016\/j.watres.2018.02.010","article-title":"Influences of dissolved organic matters on tetracyclines transport in the process of struvite recovery from swine wastewater","volume":"134","author":"Lou","year":"2018","journal-title":"Water Res."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"118253","DOI":"10.1016\/j.watres.2022.118253","article-title":"Morphological crystal adsorbing tetracyclines and its interaction with magnesium ion in the process of struvite crystallization by using synthetic wastewater","volume":"215","author":"Huang","year":"2022","journal-title":"Water Res."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"117756","DOI":"10.1016\/j.watres.2021.117756","article-title":"Quantification of DOM effects on tetracyclines transport during struvite recovery from swine wastewater","volume":"206","author":"Huang","year":"2021","journal-title":"Water Res."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"9217","DOI":"10.3390\/ijerph110909217","article-title":"Application of magnesium modified corn biochar for phosphorus removal and recovery from swine wastewater","volume":"11","author":"Fang","year":"2014","journal-title":"Int. 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