scholarly journals Application and Prospect of Magnetic Separation Technology in the Treatment of Heavy Metal Wastewater

2014 ◽  
Vol 02 (04) ◽  
pp. 40-45
Author(s):  
路远 李
Keyword(s):  
Heavy Metal ◽  
Magnetic Separation ◽  
Separation Technology ◽  
Heavy Metal Wastewater

Low-Field Dynamic Magnetic Separation by Self-Fabricated Magnetic Meshes for Efficient Heavy Metal Removal

2017 ◽  
Vol 9 (42) ◽  
pp. 36772-36782 ◽  
Author(s):  
Xiangxia Wei ◽  
Pon Janani Sugumaran ◽  
Erwin Peng ◽  
Xiao Li Liu ◽  
Jun Ding
Keyword(s):  
Heavy Metal ◽  
Magnetic Separation ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Low Field ◽  
Field Dynamic

Microscopic characteristic of biological iron sulfide composites during the generation process and the association with treatment effect on heavy metal wastewater

2014 ◽  
Vol 70 (7) ◽  
pp. 1292-1297 ◽  
Author(s):  
Yang Yang ◽  
Yifei Xie ◽  
Xudong Li ◽  
Jingchao Zhou ◽  
Jingwei Liu
Keyword(s):  
Heavy Metal ◽  
Stationary Phase ◽  
Iron Sulfide ◽  
Treatment Time ◽  
Environmental Concern ◽  
Morphological Changes ◽  
Generation Process ◽  
Toxic Heavy Metals ◽  
Practical Applications ◽  
Heavy Metal Wastewater

Heavy metal pollution is a serious environmental concern worldwide, resulting in both environmental and human harm. Recently, studies have shown that environmental biotechnologies based on sulfate reduction offer a potential for removal of toxic heavy metals. Biological iron sulfide composites are iron sulfide compounds generated in situ by sulfate-reducing bacteria. In this study, microscopic morphological changes during the composites' generation process were studied, and the effect of biological iron sulfide composites in different generation phases on treatment of heavy metal wastewater was investigated to establish the correlation between macro-effect and micro-properties. The results revealed that the generation process of biological iron sulfide composites occurs in three phases: the formation phase, stationary phase, and agglomeration phase. The stationary phase can be divided into a pre-stationary phase and post-stationary phase. It was found that the best treatment time for Cr6+ is in the pre-stationary phase, while the best treatment time for Cu2+and Cd2+ is in the post-stationary phase. The results of this study further prove the benefits of treatment of heavy metal wastewater using biological sulfide composites and provide theoretical guidance in practical applications.

Nanofibrous-spherical cage mimicking a ball of pearl-necklaces for super capture of heavy metal ions

2021 ◽  
Author(s):  
Youngkyun Jung ◽  
Ung Su Choi ◽  
Young Gun Ko
Keyword(s):  
Heavy Metal ◽  
Adverse Effects ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
High Performance ◽  
Poor Response ◽  
Separation Technology ◽  
Long Term Adverse Effects

The late and poor response in the initial stages of big heavy metal leakage accidents cause long-term adverse effects on nature and humans. Fast and high-performance separation technology with low...

scholarly journals Progress in Research and Application of Natural Polymer Coagulants

2020 ◽  
Vol 143 ◽  
pp. 02042
Author(s):  
Xiao Yu ◽  
Ying Fu
Keyword(s):  
Heavy Metal ◽  
Hot Spot ◽  
Development Trend ◽  
Status Quo ◽  
Dye Wastewater ◽  
Natural Polymer ◽  
Sludge Dewatering ◽  
Heavy Metal Wastewater ◽  
The Status ◽  
The Development Trend

In recent years, natural polymer coagulant has become a hot spot in the field of coagulants due to its safety, harmlessness and biodegradability. This paper introduced the status quo of research of natural polymer coagulants such as starch, chitosan, cellulose and lignin coagulants. And some hot applications in water treatment were discussed, such as heavy metal wastewater, dye wastewater, microalgae collection and sludge dewatering. Finally, the development trend of natural polymer coagulants was prospected.

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