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description Publicationkeyboard_double_arrow_right Article , Other literature type 2023Publisher:MDPI AG Authors:Tippawan Singhopon;
Tippawan Singhopon
Tippawan Singhopon in OpenAIRESuphatchai Rujakom;
Suphatchai Rujakom
Suphatchai Rujakom in OpenAIREKenta Shinoda;
Tatsuru Kamei; +1 AuthorsKenta Shinoda
Kenta Shinoda in OpenAIRETippawan Singhopon;
Tippawan Singhopon
Tippawan Singhopon in OpenAIRESuphatchai Rujakom;
Suphatchai Rujakom
Suphatchai Rujakom in OpenAIREKenta Shinoda;
Tatsuru Kamei; Futaba Kazama;Kenta Shinoda
Kenta Shinoda in OpenAIREdoi: 10.3390/su151310324
In this study, a hydrogen-based denitrification (HD) reactor was used to investigate the simultaneous treatment of nitrogen and decolorization in textile wastewater contaminated with organic matter. The reactor operated in two phases: without and with organic matter. Despite the short hydraulic retention time, the HD system successfully removed all pollutants, including nitrate, nitrite, reactive black-5 dye and chemical oxygen demand. The unhindered treatment efficiency for nitrogen and decolorization in the presence of organic pollutants was observed. With the addition of organic matter, the nitrogen removal efficiency increased slightly from 85% to 90–100%, and the decolorization rate doubled from 25% to 50–60%. Organic matter played a crucial role in stimulating heterotrophic bacteria during biological denitrification and acted as a carbon source facilitating biological denitrification and azo bond cleavage during dye degradation. Despite the generation of toxic byproducts and changes in the dominant microbial community, the treatment efficiency remained stable and improved. This approach offers a promising solution for enhancing treatment efficiency in textile wastewater, providing a cost-effective and environmentally friendly option for developing countries to treat wastewater before discharge.
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more_vert Sustainability arrow_drop_down SustainabilityOther literature type . 2023License: CC BYData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/su151310324&type=result"></script>'); --> </script>
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