scholarly journals Advanced Treatment Technology for Wastewater from Snakehead Fish Culturing Tank

2015 ◽  
Vol 57 (33) ◽  
pp. 15687-15696 ◽  
Author(s):  
Mohannad Qurie ◽  
Mustafa Khamis ◽  
Ibrahim Ayyad ◽  
Laura Scrano ◽  
Filomena Lelario ◽  
...  

2014 ◽  
Vol 955-959 ◽  
pp. 1013-1019
Author(s):  
Xin Miao Wang ◽  
Hai Yan Yang

Metoprolol (MET) is a common kind of Pharmaceuticals and personal care products (PPCPs), which belongs to a new type of organic micropollutants. And conventional water and wastewater treatment technology cannot remove the MET effectively, so it is necessary to adopt nanofiltration technology for advanced treatment. The influence factors on removal of Metoprolol (MET) in water by nanofiltration are mainly investigated in the study. According to the results, the removal rate of MET by nanofiltration all can reach more than 99% with the initial concentration increasing. Then the removal rate of MET by nanofiltration at different pressure values, pH, salt ionic strength conditions are also studied. The results have shown that the removal rate is increasing from 90.0% to about 99.0% while pressure goes up. When pH=5, the removal rate of MET by nanofiltration is slightly increasing. And the removal rate is decreasing from more than 98.0% to more than 92.0% with salt ionic strength increasing.


2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Ali R. Ahmadi Motlagh ◽  
Stephen Lacy ◽  
Madan Arora ◽  
Jim Ross ◽  
Jeff Misenhimer

With shortage of water becoming a major concern in many areas, use of recycled water is a necessity for a growing number of municipalities. This paper describes a case study in which two alternatives were considered for upgrading an existing wastewater treatment plant with the goal of producing recycled water. The first alternative consisted of conventional secondary and tertiary unit processes while the second alternative included the advanced treatment technology of membrane bioreactor (MBR). Also, two alternatives were evaluated for disinfection of recycled water; chlorine gas and UV system. The more advanced treatment technologies (MBR + UV), which produce the higher quality recycled water, resulted in higher cost. The paper discusses the design and project execution approaches as how the more expensive advanced treatment processes were made cost competitive with the conventional treatment processes.


2018 ◽  
Vol 1 (2) ◽  
pp. 24-33
Author(s):  
Dr. Waleed M. Sh. Alabdraba ◽  
Alaa R Al-Obaidi ◽  
Saja S Hashim ◽  
Sara D Zangana.

The selection of an effective water treatment technology is the important issues that relatively dealing with water pollution problems, some pollutants need more than the conventional facilities to be treated and discharged within the national standards. This study highlights some of the advanced treatment methods related to chemical oxidation, which is used in the treatment of some types of pollutants such as heavy metals, pesticides, dyes, etc. and demonstrate their effectiveness in treatment by reviewing what has been concluded in a number of studies in this range. © 2018 JASET, International Scholars and Researchers Association  


2012 ◽  
Vol 260-261 ◽  
pp. 1098-1103
Author(s):  
Guo Zhong Huang ◽  
Deng Kun Li ◽  
Xue Min Miao ◽  
Jun Feng Wang ◽  
Li Jie Bao

The removal of heavy metal ions is very significant for the restoration of ecological environment and recycling utilization of water resources. By using the advanced treatment technology for wastewater such as strengthening coagulant, adsorption by modified zeolite and the combination of both,respectively, the influence of different parameters like adding dosage of coagulant and flow rate of raw water on the removal efficiency of zinc and cadmium ions from wastewater was investigated, and the operating conditions were optimized. The results showed that the removal efficiency of zinc and cadmium ions from wastewater both improved in the combination process of strengthening coagulant and adsorption by modified zeolite, and they increased by 5.8% and 2.8% respectively than that of strengthening coagulation process alone, while the removal efficiency of zinc ion increased by 4.5% than that of adsorption by modified zeolite process alone. The removal efficiency of zinc and cadmium ions both gradually increased with increasing adding dose of coagulant, but they decreased when flow rate of raw water increased. In the combination treatment process of strengthening coagulant and adsorption by modified zeolite, the suitable operating condition were selected as 8 of initial pH of wastewater, 18 mg/L of polyaluminium chloride (PAC), 9mg/L of polyacrylamide (PAM), 150g of modified zeolite and 20L/h of flow rate of raw water.


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