Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site
Abstract Blackwater constitutes a primary component of environmental pollution posing serious risk to human health; however, reusing the nutrients found in blackwater diminishes the associated pollution and promotes resource recycling. Conventional green-wall systems are not suitable for in situ tre...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-03-01
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| Series: | Environmental Sciences Europe |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12302-024-00880-2 |
| _version_ | 1797233731886383104 |
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| author | Zhiquan Wang Weijie Xie Fan Shi Chunzhen Fan Suqing Wu Shengbing He Hainan Kong Min Zhao Xiangyong Zheng |
| author_facet | Zhiquan Wang Weijie Xie Fan Shi Chunzhen Fan Suqing Wu Shengbing He Hainan Kong Min Zhao Xiangyong Zheng |
| author_sort | Zhiquan Wang |
| collection | DOAJ |
| description | Abstract Blackwater constitutes a primary component of environmental pollution posing serious risk to human health; however, reusing the nutrients found in blackwater diminishes the associated pollution and promotes resource recycling. Conventional green-wall systems are not suitable for in situ treatment of high-concentration wastewater. Thereby, a novel multi-unit green-wall system with six independent treatment units was designed to achieve a cost-effective and eco-friendly in situ treatment of blackwater with high organic load. Zeolite carriers were selected for the matrix with carrier depth of 14.5 cm, ivy and chlorophytum were selected as the greening plants. Various pollutants were rapidly reduced at the initial stage and the concentration of the pollutants decreased as the number of treatment units increased. Overall, the green-wall system was more effective in removing COD and NH4 +–N with the removal rates of 98.5% and 98%, which may be due to the good buffering capacity of the media and the roles of Firmicutes and Bacteroidetes in COD degradation and ammoniated nitrification reactions. In addition, the maximum TP and TN removal rates were observed with a value of 85% and 42%, respectively. Consequently, the novel multi-unit green-wall system is an effective method for in situ blackwater reuse. Graphical Abstract |
| first_indexed | 2024-04-24T16:20:50Z |
| format | Article |
| id | doaj.art-37d35b0d25e04f6ea8639891a07f30eb |
| institution | Directory Open Access Journal |
| issn | 2190-4715 |
| language | English |
| last_indexed | 2024-04-24T16:20:50Z |
| publishDate | 2024-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Environmental Sciences Europe |
| spelling | doaj.art-37d35b0d25e04f6ea8639891a07f30eb2024-03-31T11:12:49ZengSpringerOpenEnvironmental Sciences Europe2190-47152024-03-0136111110.1186/s12302-024-00880-2Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-siteZhiquan Wang0Weijie Xie1Fan Shi2Chunzhen Fan3Suqing Wu4Shengbing He5Hainan Kong6Min Zhao7Xiangyong Zheng8College of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversitySchool of Environmental Science and Engineering, Shanghai Jiao Tong UniversitySchool of Environmental Science and Engineering, Shanghai Jiao Tong UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityAbstract Blackwater constitutes a primary component of environmental pollution posing serious risk to human health; however, reusing the nutrients found in blackwater diminishes the associated pollution and promotes resource recycling. Conventional green-wall systems are not suitable for in situ treatment of high-concentration wastewater. Thereby, a novel multi-unit green-wall system with six independent treatment units was designed to achieve a cost-effective and eco-friendly in situ treatment of blackwater with high organic load. Zeolite carriers were selected for the matrix with carrier depth of 14.5 cm, ivy and chlorophytum were selected as the greening plants. Various pollutants were rapidly reduced at the initial stage and the concentration of the pollutants decreased as the number of treatment units increased. Overall, the green-wall system was more effective in removing COD and NH4 +–N with the removal rates of 98.5% and 98%, which may be due to the good buffering capacity of the media and the roles of Firmicutes and Bacteroidetes in COD degradation and ammoniated nitrification reactions. In addition, the maximum TP and TN removal rates were observed with a value of 85% and 42%, respectively. Consequently, the novel multi-unit green-wall system is an effective method for in situ blackwater reuse. Graphical Abstracthttps://doi.org/10.1186/s12302-024-00880-2Blackwater reuseHigh organic loadMulti-unit green wallRemoval efficiencyDominant species |
| spellingShingle | Zhiquan Wang Weijie Xie Fan Shi Chunzhen Fan Suqing Wu Shengbing He Hainan Kong Min Zhao Xiangyong Zheng Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site Environmental Sciences Europe Blackwater reuse High organic load Multi-unit green wall Removal efficiency Dominant species |
| title | Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site |
| title_full | Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site |
| title_fullStr | Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site |
| title_full_unstemmed | Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site |
| title_short | Performance optimization of novel multi-unit green wall system for blackwater treatment and reuse on-site |
| title_sort | performance optimization of novel multi unit green wall system for blackwater treatment and reuse on site |
| topic | Blackwater reuse High organic load Multi-unit green wall Removal efficiency Dominant species |
| url | https://doi.org/10.1186/s12302-024-00880-2 |
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