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Communication

A Magic Filter Filled with Waste Plastic Shavings, Loofah, and Iron Shavings for Wastewater Treatment

1
Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
2
Zhejiang Shuanglin Environment Co., Ltd., Hangzhou 311100, China
*
Author to whom correspondence should be addressed.
Academic Editors: Sheila Devasahayam, Raman Singh and Vladimir Strezov
Polymers 2022, 14(7), 1410; https://doi.org/10.3390/polym14071410
Received: 28 February 2022 / Revised: 28 March 2022 / Accepted: 29 March 2022 / Published: 30 March 2022
(This article belongs to the Special Issue Recycling and Resource Recovery from Polymers II)
Integrated sewage treatment equipment has been widely used, but the commonly used fillers for wastewater treatment are not suitable in rural areas due to their price and performance issues. In this study, an integrated magic filter filled with waste fillers was proposed and established for wastewater treatment. The filter was composed of functional modules and an equipment room, and the fillers in each module can be taken out separately and changed arbitrarily according to the needs of specific treatment conditions. The fillers used include waste plastic shavings, loofah, and waste iron shavings, generated during the processing of plastic, crop, and steel. At the same time, a 91 d experiment was performed for real wastewater treatment, and a satisfactory removal performance was obtained, with average removal rates of COD, TP, NH4+-N, TN, and SS being 83.3%, 89.6%, 93.8%, 74.7%, and 94.0%, respectively. Through microscope observation, a large number of microorganisms were attached to the surface of the fillers, which was conducive to the simultaneous removal of nitrogen and phosphorus. The micro-electrolysis of waste iron shavings can produce Fe2+ and Fe3+, which would combine with PO43− to form Fe3(PO4)2 and FePO4 precipitates, enhancing the removal of phosphorus. In addition, the filled fillers have an excellent physical filtering effect, which can reduce the effluent SS. The magic filter achieves both the recycling of wastes and the treatment of wastewater. View Full-Text
Keywords: filter; waste fillers; pollutants removal; wastewater treatment filter; waste fillers; pollutants removal; wastewater treatment
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MDPI and ACS Style

Pan, Z.; Sheng, J.; Qiu, C.; Wei, H.; Yang, Q.; Pan, J.; Li, J. A Magic Filter Filled with Waste Plastic Shavings, Loofah, and Iron Shavings for Wastewater Treatment. Polymers 2022, 14, 1410. https://doi.org/10.3390/polym14071410

AMA Style

Pan Z, Sheng J, Qiu C, Wei H, Yang Q, Pan J, Li J. A Magic Filter Filled with Waste Plastic Shavings, Loofah, and Iron Shavings for Wastewater Treatment. Polymers. 2022; 14(7):1410. https://doi.org/10.3390/polym14071410

Chicago/Turabian Style

Pan, Zengrui, Jianlong Sheng, Chong Qiu, Hongtang Wei, Qianjin Yang, Jinbo Pan, and Jun Li. 2022. "A Magic Filter Filled with Waste Plastic Shavings, Loofah, and Iron Shavings for Wastewater Treatment" Polymers 14, no. 7: 1410. https://doi.org/10.3390/polym14071410

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