Desiccation Cracks Mitigation Using Biomass Derived Carbon Produced from Aquatic Species in South China Sea

被引:15
作者
Mei, Guxiong [1 ]
Kumar, Himanshu [2 ,3 ]
Huang, He [2 ]
Cai, Weiling [2 ]
Reddy, Narala Gangadhara [2 ]
Chen, Peinan [2 ]
Garg, Ankit [2 ]
Ganeshan, Suriya Prakash [4 ]
机构
[1] Guangxi Univ, Sch Civil Engn & Architecture, Nanning, Peoples R China
[2] Shantou Univ, Guangdong Engn Ctr Struct Safety & Hlth Monitorin, Dept Civil & Environm Engn, Shantou, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R China
[4] Indian Inst Technol Guwahati, Dept Civil Engn, Gauhati, India
关键词
Desiccation cracks; Aquatic biochar; Biochar amended soil; Algae biochar; Water hyacinth biochar; GREENHOUSE-GAS EMISSIONS; WATER-HOLDING CAPACITY; EICHHORNIA-CRASSIPES; ALGAL BIOCHAR; SOIL; IMPACT; INFILTRATION; RETENTION; PYROLYSIS; DYNAMICS;
D O I
10.1007/s12649-020-01057-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Greenhouse gasses generated from the degradation of solid waste pass through landfill covers and participate in climate change. The formation of desiccation cracks in surface soil leads to direct interaction of greenhouse gasses into the atmosphere. In current study, attempts were made to reduce crack damage and water evaporation of a sandy soil amended with intrusive aquatic biomass derived carbon (water hyacinth and dry algae) also known as biochar. The results show that, the addition of water hyacinth biochar (WHB) and algae biochar (AB) reduced the evaporation rate of densely compacted soil and increases the water retention capacity of soil at 5% and 10% application rate. Furthermore, WHB produced at high temperature has more potential in reducing cracks than that produced at lower temperature. WHB showed better performance than AB at any temperature (i.e. 300 degrees C, 400 degrees C and 700 degrees C) due to its highly porous structure. The current study concludes that biochars from aquatic weeds can be utilized for soil remediation (i.e., minimizing cracking and evaporation rate), which is useful in both waste management and agricultural applications. [GRAPHICS] .
引用
收藏
页码:1493 / 1505
页数:13
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