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Shao Q, Zhang Y, Liu Z, Long L, Liu Z, Chen Y, Hu XM, Lu M, Huang LZ. Phosphorus and nitrogen recovery from wastewater by ceramsite: Adsorption mechanism, plant cultivation and sustainability analysis. Sci Total Environ 2022; 805:150288. [PMID: 34536868 DOI: 10.1016/j.scitotenv.2021.150288] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Recovery of the nitrogen (N) and phosphorus (P) in wastewater would help to minimize eutrophication and their reuse would lead to a more sustainable society. Sewage sludge and fly ash were used to fabricate ceramsite in the laboratory. After modified with alkali or lanthanum it was shown in benchtop experiments to effectively recover N and P from real wastewater treatment plant effluent. The N&P-adsorbed ceramsite was then applied as an eco-friendly, slow-release fertilizer to promote the germination, growth and blooming of Impatiens commelinoides, realizing the recycling of N and P from wastewater. Emergy analysis shows that such recycling is more sustainable than the current two approaches (i.e., landfill and incineration) for sludge disposal. This work thus demonstrates a sustainable solution combining the reuse of solid waste, effective wastewater purification and recovery of N and P nutrients. Applying the technologies demonstrated would help to minimize the environmental impact of wastewater and solid waste.
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Affiliation(s)
- Qing Shao
- School of Civil Engineering, Wuhan University, No. 8 East Lake South Road, Wuhan 430072, China
| | - Ying Zhang
- School of Civil Engineering, Wuhan University, No. 8 East Lake South Road, Wuhan 430072, China
| | - Zhe Liu
- Institute for Population and Development Studies, School of Public Policy and Administration, Xi'an Jiaotong University, Shaanxi Province 710049, China
| | - Lizhi Long
- Key Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture), Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Zizheng Liu
- School of Civil Engineering, Wuhan University, No. 8 East Lake South Road, Wuhan 430072, China
| | - Yiqun Chen
- School of Civil Engineering, Wuhan University, No. 8 East Lake South Road, Wuhan 430072, China
| | - Xin-Ming Hu
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Mingming Lu
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, United States
| | - Li-Zhi Huang
- School of Civil Engineering, Wuhan University, No. 8 East Lake South Road, Wuhan 430072, China; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, 430072, China.
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