scholarly journals Bacteriological Quality of a Forage Grass (<i>Pennisetum purpureum Schumach</i>) Used in Constructed Wetland Removing Domestic Wastewater Pathogenic Microorganism

2021 ◽  
Vol 12 (05) ◽  
pp. 311-327
Author(s):  
Franck Michaël Zahui ◽  
Élisée Napari Yeo ◽  
Jean-Marie Pétémanagnan Ouattara ◽  
Lacina Coulibaly
2021 ◽  
Vol 319 ◽  
pp. 01065
Author(s):  
Aziz Taouraout ◽  
Abdelkader Chahlaoui ◽  
Khadija Ouarrak ◽  
Hicham Aaziz ◽  
Driss Belghyti

Wastewater and human excreta are threatening the quality of groundwater and watercourses in rural areas of Morocco. The new sanitation approach that has advantage to solve the problems of pathogens of human waste at source and offering the possibility of reusing them after treatment is called Ecological Sanitation (EcoSan) could be an alternative solution to the conventional one. It is in this perspective that our study made an investigation on economic, ecological, sustainable sanitation techniques adapted to the Moroccan context. Indeed, a survey was carried out at Dayet Ifrah village to assess the population appreciation of the EcoSan structures installed. Survey results showed that these structures have been generally accepted by almost all users and non-users (95%). On the other hand, a pilot-scale system composed by two types of filters (vertical constructed wetland and vertical Multi-Soil-Layering) have been installed in order to treat domestic wastewater coming from a single household and their performance was evaluated. The filters showed good performance to remove organic pollution (> 84.5%) and orthophosphate (> 68%). The reduction of ammonium were 84.5% and 35.3% for vertical Multi-Soil-Layering and vertical constructed wetland, respectively. The quality of the wastewater treated was evaluated in accordance with the standard of the rejection limit value adopted by Morocco.


Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1086
Author(s):  
Mario Licata ◽  
Roberto Ruggeri ◽  
Nicolò Iacuzzi ◽  
Giuseppe Virga ◽  
Davide Farruggia ◽  
...  

Dairy wastewater (DWW) contains large amounts of mineral and organic compounds, which can accumulate in soil and water causing serious environmental pollution. A constructed wetland (CW) is a sustainable technology for the treatment of DWW in small-medium sized farms. This paper reports a two-year study on the performance of a pilot-scale horizontal subsurface flow system for DWW treatment in Sicily (Italy). The CW system covered a total surface area of 100 m2 and treated approximately 6 m3 per day of wastewater produced by a small dairy farm, subsequent to biological treatment. Removal efficiency (RE) of the system was calculated. The biomass production of two emergent macrophytes was determined and the effect of plant growth on organic pollutant RE was recorded. All DWW parameters showed significant differences between inlet and outlet. For BOD5 and COD, RE values were 76.00% and 62.00%, respectively. RE for total nitrogen (50.70%) was lower than that of organic compounds. RE levels of microbiological parameters were found to be higher than 80.00%. Giant reed produced greater biomass than umbrella sedge. A seasonal variation in RE of organic pollutants was recorded due to plant growth rate Our findings highlight the efficient use of a CW system for DWW treatment in dairy-cattle farms.


2017 ◽  
Vol 11 ◽  
pp. 117863021773553 ◽  
Author(s):  
Joab Odhiambo Okullo ◽  
Wilkister Nyaora Moturi ◽  
George Morara Ogendi

2015 ◽  
Vol 10 (53) ◽  
pp. 4844-4849 ◽  
Author(s):  
Benmerine BENGARNIA ◽  
Miloud HADADJI ◽  
Mohammed RAMDANI ◽  
Mebrouk KIHAL

Food Control ◽  
2014 ◽  
Vol 41 ◽  
pp. 147-150 ◽  
Author(s):  
R. Abd-Elaleem ◽  
W.M.K. Bakr ◽  
W.A. Hazzah ◽  
O. Nasreldin

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