Ressources Hydriques : Traitement et Reutilisation des Eaux Usees en Algerie = Water Resources Treatment and Reuse of Wastewater in Algeria

Bouchaala, Laid; Charchar, Nabil; Gherib, A.

doi:10.12816/0045919

Cited by 13 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The National Sanitation O ce (ONA) in Algeria estimated, in 2013, that 539 tons of waste sludge are generated per day [7]. However, this quantity cannot be delivered to the state since this waste poses a serious problem for public health and the environment.…”

Section: Introductionmentioning

confidence: 99%

The importance of Evaluation of microorganisms in raw sewage sludge intended for agriculture

BOUCHAALA,

GRARA,

CHARCHAR

et al. 2024

Preprint

View full text Add to dashboard Cite

The present study was conducted to determine the microbiological characteristics of sewage sludge from five waste-water treatment plants (WWTPs) in eastern Algeria and to assess the efficiency of drying beds in lowering the microbial load in this sludge, which is typically used in agricultural fields. We chose the five most significant waste-water treatment facilities in Algeria's Eastern area to carry out this study. Where we have counted harmful microorganisms (Salmonella, Clostridium), and examined parasites. Total coliforms, fecal "E. coli" and fecal streptococci were used as indicators of fecal contamination. The obtained results indicate that the examined sewage sludge is a rich source of microorganisms, particularly bacteria of fecal origin, especially during the months of high temperature (Spring, Summer), and moor particular in the sludge of medium age (more than 1 month). As a result, we have reported a significant presence of anaerobic sulfate-reducingria (ASR), Salmonella spp., and E. coli. We also observed that this sludge included parasites, ranging from protozoa to helminth eggs. We may draw the conclusion that even if the microbiological load in the sewage sludge significantly decreased after treatment in the drying beds, the hazards associated with the spread of this sludge must be managed by adherence to a set of exact guidelines. This study allowed us to determine the microbiological properties of sewage sludge, through which we can reduce the risks or definitively eliminated, which allows the possibility of valued them in the agricultural sector by avoiding all possible environmental risks and even on health public.

show abstract

Section: Introductionmentioning

confidence: 99%

The importance of Evaluation of microorganisms in raw sewage sludge intended for agriculture

BOUCHAALA,

GRARA,

CHARCHAR

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…One of the major challenges in developing countries today is to ensure safe and sustainable access to water since it is the most exposed resource to contamination [1]. In Africa, water resources constitute an important part of the hydraulic heritage.…”

Section: Introductionmentioning

confidence: 99%

Eichhornia crassipes Efficacy in Secondary Wastewater Treatment in the Western Highlands of Cameroon

Manekeu Tanetsa,

Lekeufack,

Edzigui Tsimi

et al. 2023

The Scientific World Journal

View full text Add to dashboard Cite

Wastewater treatment using lagoons technology is recognised to have potential to protect the environment and preserve water resources. The implementation requires mastery of ecological conditions of operation and management of the plants used. We aimed to contribute to the implementation of macrophyte-based lagoons for wastewater treatment in the Western Highlands of Cameroon. We used two sets of four lagoons in series; one was vegetated with E. crassipes, while the other served as the control. Each set constituted an anaerobic, two facultative, and maturation lagoons. Each lagoon system was supplied with primary-treated domestic wastewater from the wastewater treatment plant of the University of Dschang, Cameroon, at a hydraulic loading rate of 1.13 m3/day. Monthly wastewater samples were collected from the inflow and outflow of each lagoon for physicochemical and bacteriological analyses, and plant growth was assessed biweekly for six months spanning the dry and rainy seasons. Macrophyte lagoons showed positive plant growth during both seasons. The highest plant height (10.67 and 25.21 cm), longer roots (11.3 and 37.41 cm), and the highest number of new buds (14 and 20 buds) were obtained during the dry and rainy seasons, respectively. Plants were significantly ( P < 0.0001) taller in facultative lagoons in the rainy season than in the dry season. Vegetated lagoons significantly ( P < 0.05) contributed to reducing TSS (−08.36% and 82.25%), true color (44.46% and 82.31%), orthophosphates (63.1% and 86.59%), and BOD5 (−56.79% and 56.06%) during the dry and rainy seasons, respectively. 100% elimination of fecal streptococci (FS) and 74.89% and 43.80% of fecal coliforms (FC) were observed in the dry and rainy seasons, respectively. Significant ( P = 0.0019) FS elimination was more in the dry season than in the rainy season. However, the average residual content of FC (190,000 UFC/100 ml) was still higher than WHO limits (≤1000 UFC/100 ml) for nonrestrictive reuse in agriculture. E. crassipes can be efficiently used in lagoon systems for domestic wastewater treatment in the Western Highlands of Cameroon.

show abstract

A Review on the Reuse of Treated Wastewater in Algeria: Scenario and Sustainability Issues

Dairi

Mrad

Bouamrane

et al. 2022

New Prospects in Environmental Geosciences and Hydrogeosciences

View full text Add to dashboard Cite

Ressources Hydriques : Traitement et Reutilisation des Eaux Usees en Algerie = Water Resources Treatment and Reuse of Wastewater in Algeria

Cited by 13 publications

References 0 publications

The importance of Evaluation of microorganisms in raw sewage sludge intended for agriculture

The importance of Evaluation of microorganisms in raw sewage sludge intended for agriculture

Eichhornia crassipes Efficacy in Secondary Wastewater Treatment in the Western Highlands of Cameroon

A Review on the Reuse of Treated Wastewater in Algeria: Scenario and Sustainability Issues

Contact Info

Product

Resources

About