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Modified Local Soil (MLS) Technology for Harmful Algal Bloom Control, Sediment Remediation, and Ecological Restoration
Pan, Gang; Miao, Xiaojun; Bi, Lei; Zhang, Honggang; Wang, Lei; Wang, Lijing; Wang, Zhibin; Chen, Jun; Ali, Jafar; Pan, Minmin; Zhang, Jing; Yue, Bin; Lyu, Tao
2019-06
Source PublicationWATER
ISSN2073-4441
Volume11Issue:6Pages:-
AbstractHarmful algal blooms (HABs), eutrophication, and internal pollutant sources from sediment, represent serious problems for public health, water quality, and ecological restoration worldwide. Previous studies have indicated that Modified Local Soil (MLS) technology is an efficient and cost-effective method to flocculate the HABs from water and settle them onto sediment. Additionally, MLS capping treatment can reduce the resuspension of algae flocs from the sediment, and convert the algal cells, along with any excessive nutrients in-situ into fertilisers for the restoration of submerged macrophytes in shallow water systems. Furthermore, the capping treatment using oxygen nanobubble-MLS materials can also mitigate sediment anoxia, causing a reduction in the release of internal pollutants, such as nutrients and greenhouse gases. This paper reviews and quantifies the main features of MLS by investigating the effect of MLS treatment in five pilot-scale whole-pond field experiments carried out in Lake Tai, South China, and in Cetian Reservoir in Datong city, North China. Data obtained from field monitoring showed that the algae-dominated waters transform into a macrophyte-dominated state within four months of MLS treatment in shallow water systems. The sediment-water nutrient fluxes were substantially reduced, whilst water quality (TN, TP, and transparency) and biodiversity were significantly improved in the treatment ponds, compared to the control ponds within a duration ranging from one day to three years. The sediment anoxia remediation effect by oxygen nanobubble-MLS treatment may further contribute to deep water hypoxia remediation and eutrophication control. Combined with the integrated management of external loads control, MLS technology can provide an environmentally friendly geo-engineering method to accelerate ecological restoration and control eutrophication.
Department环境纳米技术与健康效应重点实验室
Keywordharmful algal blooms (HABs) eutrophication internal loads control oxygen nanobubble shallow lakes deep water hypoxia
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43200
Collection环境纳米技术与健康效应重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nottingham Trent Univ, Sch Anim Rural & Environm Sci, Brackenhurt Campus, Southwell NG25 0QF, Notts, England
4.Nottingham Trent Univ, Ctr Integrated Water Energy Food Studies iWEF, Southwell NG25 0QF, Notts, England
5.Chinese Acad Sci, Beijing Adv Sci & Innovat Ctr, Beijing 101407, Peoples R China
Recommended Citation
GB/T 7714
Pan, Gang,Miao, Xiaojun,Bi, Lei,et al. Modified Local Soil (MLS) Technology for Harmful Algal Bloom Control, Sediment Remediation, and Ecological Restoration[J]. WATER,2019,11(6):-.
APA Pan, Gang.,Miao, Xiaojun.,Bi, Lei.,Zhang, Honggang.,Wang, Lei.,...&Lyu, Tao.(2019).Modified Local Soil (MLS) Technology for Harmful Algal Bloom Control, Sediment Remediation, and Ecological Restoration.WATER,11(6),-.
MLA Pan, Gang,et al."Modified Local Soil (MLS) Technology for Harmful Algal Bloom Control, Sediment Remediation, and Ecological Restoration".WATER 11.6(2019):-.
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