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Geng Y, Yang L, Lian CA, Pavlostathis SG, Qiu Z, Xiong Z, Liu Y, Li B, Hu J, Fan W, Luo X, Yu K. Resourceful application and mechanism of oyster shell-microalgae synergistic system:Sustainable treatment of harsh low carbon nitrogen ratio actual wastewater. ENVIRONMENTAL RESEARCH 2024; 252:118775. [PMID: 38548250 DOI: 10.1016/j.envres.2024.118775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/03/2024] [Accepted: 03/21/2024] [Indexed: 06/07/2024]
Abstract
Microalgal technology holds great promise for both low C/N wastewater treatment and resource recovery simultaneously. Nevertheless, the advancement of microalgal technology is hindered by its reduced nitrogen removal efficiency in low C/N ratio wastewater. In this work, microalgae and waste oyster shells were combined to achieve a total inorganic nitrogen removal efficiency of 93.85% at a rate of 2.05 mg L-1 h-1 in low C/N wastewater. Notably, over four cycles of oyster shell reuse, the reactor achieved an average 85% ammonia nitrogen removal extent, with a wastewater treatment cost of only $0.092/ton. Moreover, microbial community analysis during the reuse of oyster shells revealed the critical importance of timely replacement in inhibiting the growth of non-functional bacteria (Poterioochromonas_malhamensi). The work demonstrated that the oyster shell - microalgae system provides a time- and cost-saving, environmental approach for the resourceful treatment of harsh low C/N wastewater.
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Affiliation(s)
- Yanni Geng
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China
| | - Liming Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang, 330063, China
| | - Chun-Ang Lian
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China
| | - Spyros G Pavlostathis
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0512, USA
| | - Zhiguang Qiu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China
| | - Zhensheng Xiong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang, 330063, China
| | - Yuanqi Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang, 330063, China
| | - Bing Li
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jincheng Hu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China
| | - Wenbo Fan
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang, 330063, China
| | - Ke Yu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong, Shenzhen, 518055, China.
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Huang Y, Kong Q, Zhang X, Peng H. DMSA-incorporated silsesquioxane-based hybrid polymer for selective adsorption of Pb(II) from wastewater. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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