Juan Huang, Jiawei Yao, Zhihui Wei, Xiuwen Qian, Xinyue Wang
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New Insights on Constructed Wetland Filled with Calcium-Modified Basalt Fiber with Different Quantities: Comprehensive Evaluation of Performance in Different Conditions
The substrate was vital for removing pollutants from constructed wetlands (CWs). This study explored the treatment performance of CWs amended with different contents of basalt fiber with calcium modification (Ca-MBF) under various operational conditions. Results demonstrated that the performance of adding Ca-MBF outperformed the conventional substrate, which Ca-MBF increased nitrogen and phosphorus removal efficiencies around 12 ~ 14% and 7 ~ 14% no matter with the variations of operation conditions, especially the Ca-MBF group with the highest filling quantity (105 g). Additionally, the largest number of Ca-MBF completely boosted the activity of dehydrogenase (DHA) and neutral phosphatase (NP), contributing to a positive responses of the microbial community. This specified that a reasonable quantity of Ca-MBF was advantageous for the system to resist changes in different environments. Moreover, high-throughput sequencing analysis revealed that Ca-MBF increased the abundance of microbial phyla like Proteobacteria, Actinobacteria, Firmicutes, and Nitrospirae. Overall, this study provided a novel perspective of improvements on the performance of CWs with different contents Ca-MBF.
期刊介绍：
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation.
Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.
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