Descriptive and multivariable analysis of the physico-chemical and biological parameters of Sfax wastewater treatment plant

Ouali, A.; Azri, Chafai; Medhioub, Khaled; Ghrabı, Ahmed

doi:10.1016/j.desal.2008.04.058

Cited by 22 publications

(11 citation statements)

References 24 publications

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“…A large variety of microorganisms has been isolated from wastewater (Vaz-Moreira et al 2014). Chemical pollutants pose serious risks to health and the environment; effluents may contain pesticides (Köck-Schulmeyer et al 2013), heavy metal (Ouali et al 2008), and substances pharmaceuticals (Gibson et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Irrigation of a golf course with UV-treated wastewater: effects on soil and turfgrass bacteriological quality

et al. 2019

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This research was carried out to assess the impact of treated wastewater irrigation on soil bacteriological and physicochemical properties and turfgrass bacteriological quality. Two golf courses were studied: a golf course A irrigated with freshwater (FW) and a golf course B irrigated with UV-treated wastewater (UV-TW). The physicochemical parameters (electrical conductivity and pH) of the soil were determined. FW, UV-TW, lake-stored water (LSW), turfgrass, and soil were collected, and their bacteriological parameters were determined. These parameters include: Escherichia coli, faecal enterococci, and faecal coliform. The results showed that the soil irrigated with treated wastewater (S-TW) showed a significant increase in the pH when compared with the soil irrigated with freshwater (S-FW). However, no significant difference was recorded in soil electrical conductivity. Faecal indicators concentration of the irrigation water samples varied considerably, and the concentrations in LSW frequently exceed those of the water at the output of the treatment plant (UV-TW). The comparison of the faecal contamination between the two golf courses indicates no significant difference in E. coli and faecal coliform concentrations. However, a significant difference was detected in faecal enterococci contamination. This study confirms that, under appropriate conditions, treated wastewater produced by M'zar wastewater treatment plant can be used as an alternative water resource for golf courses irrigation in Agadir city, Morocco.

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Section: Introductionmentioning

confidence: 99%

Irrigation of a golf course with UV-treated wastewater: effects on soil and turfgrass bacteriological quality

et al. 2019

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“…The considered plant was an aerated lagoon, established in 1983 with average daily capacities of 24,000 m 3 . Several studies have been proven its poor performance Ouali et al, 2009). In order to improve the plant performance, the activated sludge has been the process adopted for its rehabilitation.…”

Section: Introductionmentioning

confidence: 99%

Descriptive and multivariable analysis of the water parameters quality of Sfax sewage treatment plant after rehabilitation

Belhaj¹,

Jaabiri²,

Turki³

et al. 2014

IOSRJCE

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This study detailed the effect of simultaneous multiple intrinsic and extrinsic factors on the characteristics of Sfax activated sludge wastewater treatment plant (WWTP), located in Southern East Tunisia. The plant performance was evaluated through descriptive and statistical analysis of quantity and quality data of both raw wastewaters and treated effluent over a period of three years (2008-2010). Despite the rehabilitation, poor performance was shown to be attributed to raw wastewaters quality, civilization populations, bad functioning of the aerators and the industrial fallouts and deposits. Therefore, the downstream values of BOD 5 , COD, SS, FC, FS, TKN and TP are enough to achieve a final effluent that would meet the Tunisian standards limit. Multiple regression analysis showed that removal efficiencies of BOD 5 , COD and SS can be predicted to reasonable accuracy (R 2 = 0.973, 0.946 and 0.925, respectively). Goodness of the model fit to the data was also evaluated through the relationship between the residuals and the model predicted values of BOD 5 r, CODr and SSr. The advantage of this model is that it would allow a better process control.

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“…These multivariate statistical analyses can be efficient tools for evaluating water/wastewater quality and also for identifying latent sources that influence their characteristics, reducing the dimensionality of a data set and offering a valuable tool for reliable management of water resources, as well as effective solutions to pollution problems (Magyar et al, 2013;Lee et al, 2008;Ouali et al, 2009;Wan et al, 2011;Wang et al, 2013;Yoo et al, 2003;Zhao et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fish canning industry wastewater variability assessment using multivariate statistical methods

Cristóvão

Pinto

Gonçalves

et al. 2016

Process Safety and Environmental Protection

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Fish canning wastewaterWastewater variability Principal component analysis Cluster analysis Correlation analysisMultivariate statistical methods a b s t r a c t Usually, fish canning industrial wastewaters have a highly variable composition over time.For a good performance of treatment processes it is necessary to limit that variation.However, extended wastewater monitoring, including all relevant analytical parameters, is expensive. This work proposes an efficient approach to minimize the analytical determinations number without compromising the global characterization goal. This way, fish canning industry wastewaters variability was assessed and interpreted through multivariate statistical tools application to analytical data obtained from a monitoring program carried out in a fish canning industry of northern Portugal. 23 physicochemical parameters were determined in 20 samples collected on an 8 months period. The results achieved by correlation analysis, principal component analysis (PCA) and cluster analysis (CA) led to the main water pollution sources identification and to the minimization of physical and chemical parameters number to be analyzed in order to achieve a correct wastewater characterization, at minimum cost. The main pollution sources proved to be the brine and eviscerating step waters.Dissolved organic carbon (DOC), total suspended solids (TSS), conductivity, pH, Ca 2+ , F − and one of the parameters SO 4 2 , NO 3 − and PO 4 3− were identified as important parameters that must be monitored in order to obtain an accurate characterization allowing to define the most appropriate wastewater treatment.

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Descriptive and multivariable analysis of the physico-chemical and biological parameters of Sfax wastewater treatment plant

Cited by 22 publications

References 24 publications

Irrigation of a golf course with UV-treated wastewater: effects on soil and turfgrass bacteriological quality

Irrigation of a golf course with UV-treated wastewater: effects on soil and turfgrass bacteriological quality

Descriptive and multivariable analysis of the water parameters quality of Sfax sewage treatment plant after rehabilitation

Fish canning industry wastewater variability assessment using multivariate statistical methods

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