A novel of transforming wastewater pollution into resources for desertification control by sand-consolidating cyanobacte
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RESEARCH ARTICLE
A novel of transforming wastewater pollution into resources for desertification control by sand-consolidating cyanobacteria, Scytonema javanicum Qiuheng Zhu 1,2 & Li Wu 3 & Guowen Li 2 & Xiaoguang Li 2 & Chen Zhao 4 & Caili Du 5 & Fan Wang 4 & Wei Li 2 & Lieyu Zhang 1,2 Received: 13 June 2020 / Accepted: 4 November 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Cultivation of desert cyanobacteria in wastewater can lead to the optimal redistribution of regional resources and is likely to solve two global problems, i.e., wastewater pollution and desertification. However, the potential of using wastewater instead of traditional artificial culture media to cultivate sand-consolidating cyanobacteria for desert management is not well understood. This study compares undistilled and distilled wastewater with an artificial culture medium (BG110) to explore the potential of wastewater as a replacement culture medium for Scytonema javanicum. The results show that the photosynthetic activity (Fv/Fm) of S. javanicum was inhibited in the undistilled wastewater and was lower than that in distilled water and the culture medium. The lowest Chl-a concentration and the highest concentration in BG110 were found in distilled wastewater. However, there was no difference in the biomass (dry weight) between the undistilled wastewater and BG110 at the end of the experiment. After longterm dry storage of the biomass collected after cultivation, there was no difference in the photosynthetic recovery between S. javanicum cultivated in undistilled wastewater and that cultivated in BG110. Accordingly, although wastewater depressed the Chl-a content, it did not affect the biomass accumulation and subsequent photosynthetic recovery after long-term storage. The results reveal the significant potential of cultivating sand-consolidating cyanobacterium in wastewater and using this technology as a new nutrient redistribution method in human settlements and desert areas. Keywords Cyanobacteria cultivation . Biomass . Photosynthetic activity . Redistribution . Dry storage . Potential
Introduction
Responsible Editor: Ta Yeong Wu * Lieyu Zhang [email protected] 1
College of Water Sciences, Beijing Normal University, Beijing 100875, China
2
State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
3
School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
4
Basin Research Center for Water Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
5
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
With the rapid development of urbanization in China, resource scarcity and environmental pollution have become significant problems (Barbier 1999). Consequently, the rational allocation and utilization of resources have gained intense research interest (Fujii and Managi 20
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