Abstract
Abstract This study aims to investigate the role of nano TiO2 in modifying the characteristics of Shanghai clayey silt – alluvial soil in Yangtze river estuary. The Shanghai clayey silt is first mixed with nano TiO2 with different size group and content before it is made to undergo liquid and plastic limit tests, standard Proctor compaction tests, and acid-resistant tests. The results show that nano TiO2 can substantially increase the liquid limit and plastic limit of TiO2-treated clayey silt, but can decrease the plasticity index of it to some degree. The result from standard Proctor compaction tests shows that the maximum dry bulk density (MBD) decreases and the optimum water content (OWC) increases compared with untreated samples. Acid-resistance of sample is significantly increased after being treated by nano titanium dioxide. The data provided by this study can be used for not only the soil and water conservation, but also for soil improvement, diversity of vegetables and animals, amelioration of crop land, as well as sustainable development.
Highlights
Shanghai, the largest city for commerce and industry, is located in the due east of China, where Yangtze River meets with east China sea, with deep alluvial deposit
In all of the same application rate of nano TiO2, the largest optimum water content (OWC) and lowest maximum dry bulk density (MBD) are obtained from G1, which has the finest particle size (5–10 nm), while the lowest OWC and the highest MBD are obtained from G3, which has the coarsest particle size (90–110)
For 3, 6, and 10% of application, the OWC increases with the increase of nano TiO2 content, while the MBD decreases with the increase of nano TiO2 content
Summary
The largest city for commerce and industry, is located in the due east of China, where Yangtze River meets with east China sea, with deep alluvial deposit. Some of soil amendments have been effectively used to realize the above goal, for example, rice-husk ash [5], diatomite [6], silica fume and lime [7,8,9], and nanomaterials [10] These soil amendments have been employed either for amelioration in ground structure, aerating and draining, increasing soil water holding capacity and decreasing soil compaction, or better workability range with spurring root development and increasing yield. This modification on soil performance would be substantially helpful to improve ecological biota and multiformity of plants and animals, and increasing of agricultural production, and promote sustainable development of society and economy, environmental
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
