Emergency water treatment using hydrocyclones

2011 ◽  
Vol 6 (2) ◽  
Author(s):  
R. A. Reed ◽  
M. Moore

Post disaster, emergency water treatment in low and middle income countries is an ongoing dilemma. Systems must be effective and quick to install whilst being robust and simple to operate and maintain. A test bench was constructed to assess the effectiveness of a one inch (25mm) hydrocyclone as part of an emergency water treatment process. Natural and artificial water samples ranging in turbidity between 105 and 2489 NTU were passed through the hydrocyclone using various configurations of inlet pressure, vortex finder and spigot size. Turbidity removal varied between zero and 30.18% with the best results being achieved from samples with the highest turbidity and the hydrocylone fitted with the smallest vortex finder and largest spigot. None of the effluent samples achieved a turbidity of less than 20NTU concluding that, in the format tested, the hydrocyclone is not a suitable emergency water treatment option.

2013 ◽  
Vol 594-595 ◽  
pp. 226-230 ◽  
Author(s):  
Muhammad Ridwan Fahmi ◽  
Nasrul Hamidin ◽  
Che Zulzikrami Azner Abidin ◽  
M. Ali Umi Fazara ◽  
M.D. Irfan Hatim

The objective of this study is to evaluate the performance of turbidity removal in water by using Okra (Abelmoschus esculentus) as natural coagulant. The coagulation active agent in various Okra sections was extracted with distilled water and NaCl 1.0 M solutions. Synthetic water containing kaolin with turbidity of 55 NTU was used as water source in this study. The result shows that Okra seed that extracted both with distilled water and NaCl 1.0 N solution has the potential advantage as natural coagulant for turbidity removal in comparison with other sections of the plant. However, the seed is not economically feasible to be used as coagulant. The dried Okras leaf that commonly considered as waste material could be proposed as an alternative coagulant in water treatment process, due to its similarity in coagulation behaviour with Okras seed. FTIR analysis on leaf shows that chemical functional groups in protein were significantly removed after extraction with distilled water and NaCl 1.0 N solution. The result indicated a strong correlation between the protein content and turbidity removal efficiency, which eventually suggest that the protein in Okra could potentially be an active agent in coagulation process.


2016 ◽  
Vol 15 (8) ◽  
pp. 1867-1872
Author(s):  
Florina Fabian ◽  
Silvia Fiore ◽  
Giuseppe Genon ◽  
Deborah Panepinto ◽  
Valentin Nedeff ◽  
...  

2007 ◽  
Vol 8 (11) ◽  
pp. 1826-1830 ◽  
Author(s):  
Dong-mei Liu ◽  
Fu-yi Cui ◽  
Ya-qin Wu ◽  
Tao Lin ◽  
Min Zhang ◽  
...  

2021 ◽  
Vol 20 (2) ◽  
pp. 247-256
Author(s):  
Leonie Asfora Sarubbo ◽  
Alexandre Augusto Paredes Selva Filho ◽  
Lais Alexandre do Nascimento ◽  
Raquel Diniz Rufino ◽  
Juliana Moura de Luna ◽  
...  

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