Evaluation of Water Purification Efficiency Using Vegetation

2015 ◽  
Vol 23 (2) ◽  
pp. 49-55 ◽  
Author(s):  
Kim Byeong-jun ◽  
Park Jae-ro ◽  
Choi I-Song ◽  
Oh Jong-Min
2003 ◽  
Vol 72 (4) ◽  
pp. 424-430 ◽  
Author(s):  
Takuya HIROSE ◽  
Akira MIYAZAKI ◽  
Kiyomi HASHIMOTO ◽  
Yoshinori YAMAMOTO ◽  
Tetsushi YOSHIDA ◽  
...  

Author(s):  
Ambreen Ashar ◽  
Ijaz A. Bhatti ◽  
Tayyaba Siddique ◽  
Sobhy M. Ibrahim ◽  
Saima Mirza ◽  
...  

Micromachines ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 244 ◽  
Author(s):  
Qingwei Li ◽  
Huichao Lin ◽  
Xiaowen Huang ◽  
Maocui Lyu ◽  
Hongxia Zhang ◽  
...  

Photocatalytic water purification is important for the degradation of organic pollutants, attracting intensive interests. Photocatalysts are preferred to be immobilized on a substrate in order to reduce the laborious separation and recycling steps. To get uniform irradiation, the photocatalysts are preferred to be even/uniform on the substrate without aggregation. Generally, the “coffee ring effect” occurs on the substrate during solvent evaporation, unfortunately resulting in the aggregation of the photocatalysts. This aggregation inevitably blocks the exposure of active sites, reactant exchange, and light absorption. Here, we reported a paper-based photocatalyst immobilization method to solve the “coffee ring” problem. We also used a “drop reactor” to achieve good photocatalytic efficiency with the advantages of large surface area, short diffusion lengths, simple operation, and uniform light absorption. Compared with the coffee ring type, the paper-based method showed higher water purification efficiency, indicating its potential application value in the future.


2014 ◽  
Vol 22 (8) ◽  
pp. 6298-6307 ◽  
Author(s):  
Wei-Xin Li ◽  
Chuan-Dong Tang ◽  
Zhi-Lin Wu ◽  
Wei-Min Wang ◽  
Yu-Feng Zhang ◽  
...  

Author(s):  
Shafeeq Rahman ◽  
P.K. Praseetha

Graphene oxides are known for their affinity towards ionic components. Hence this property could be utilized to remove the impurities present in water molecules. Moreover, Graphene oxides are popular for their antimicrobial and disinfective properties. Graphene nanocomposite was prepared with reduced sugar and sand mixture at nitrogen atmospheres at 200o C and was characterized using XRD, SEM-EDAX, UV- Visible spectroscopy and Raman’s spectroscopic techniques. Two different water mixtures were used for the purification purpose- ie., sewage and soft drink concentrate (Coca Cola). Graphene Sand Composite (GSC) was loaded for purification at different weight percentage compositions such as 1%, 3% and 5%. Water mixtures were analyzed for their chemical and physical properties before and after treatment with graphene nanocomposite. The microbiological load before and after treatment with the composite was also analyzed. All the characterization shows the presence of graphene functionalities, carbon functionalities, and other elements present in the GSC. The physical, chemical and microbial examination of purified coca cola and sewage water matches the features of pure water with less impurities and absence of pathogen. The current study reveals the importance of water purification application using GSC and the measurement of water purification efficiency with conventional techniques.


2021 ◽  
Vol 25 (1) ◽  
pp. 563-573
Author(s):  
Oskars Svedovs ◽  
Mikelis Dzikevics ◽  
Vladimirs Kirsanovs ◽  
Ivars Veidenbergs

Abstract This work is a continuation of the article “Methods for Determining the Performance and Efficiency Parameters of the Flue-gas Condenser Sedimentation Tank”. During the experimental determination of Particulate Matter (PM) physical parameters, a described methodology was used. The results obtained affected the choice of water purification technology. Sedimentation technology was selected but provided that a filter element should be present in the installation. The article describes the types of industrial sedimentation tanks used more often. In condition that the system should be compact, while at the same time the purification efficiency rate should be high, the new suitable design of the water treatment system was developed.


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