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

Belhaj, Dalel; Jaabiri, Ikram; Turki, Nesrine; Azri, Chafai; Kallel, Monem; Ayadi, Habib

doi:10.9790/0661-16178191

Cited by 11 publications

(8 citation statements)

References 14 publications

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“…It was seen in this work that measured pH values were consistently increased by between 0.3 and 0.9 units giving relatively stable daily, weekly and monthly average pH effluent Journal of Water Resource and Protection between 7.94 and 8.14 ( Table 2). This observation is consistent with the works of Belhaj and coworkers [7].…”

Section: Qualitative Analysis Of Process Influent and Effluentsupporting

confidence: 94%

“…The Mudor waste water treatment plant uses the Up-flow Anaerobic Sludge Blanket (UASB) reactor as a unit for sewage treatment ( Figure 1) and research has indicated that about 65% to 80% of organic matter removal efficiency can be obtained in conventional UASB reactors even with short retention time of about 4 to 6 hours in hot climate areas [2]. The process of the rehabilitation of the to environmental and public health [7]. Research has also indicated that in developing countries 1.8 million people, mostly children, die every year as a result of water-related diseases [8] [9] [10].…”

Section: Introductionmentioning

confidence: 99%

“…In this context as also highlighted by the works of Belhaj [7], this study therefore seeks to determine the overall performance of the rehabilitated Mudor waste water treatment plant at James Town, Accra; with specific objective of assessing the day to day operations and to determine the nutrient, organic and pathogenic removal efficiency of the rehabilitated plant. Exhaustive data from a previous research work [2] conducted on the plant before its rehabilitation was comparatively treated to ascertain the plant performance based on past observations of certain key product quality parameters.…”

Section: Introductionmentioning

confidence: 99%

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Performance Assessment of the Rehabilitated Mudor Sewage Treatment Plant at James Town Accra-Ghana

Ahmed¹,

Ofori-Amanfo²,

Awuah³

et al. 2018

JWARP

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The Rehabilitated Mudor sewage treatment plant at James Town was monitored over a period of 4 months (October 2017 to January 2018). This study analyzed the physical, chemical and biological parameters of the raw sewage and the treated effluent from the plant. The result indicates that the total removal efficiencies were 98.8%, 91.2%, 62.8%, 28.6%, 81.7%, 43.6%, 82.5% and 99.6% for BOD, COD, TSS, Nitrate-Nitrogen, Phosphate-Phosphorus, Ammonia-nitrogen, Sulphate and faecal coliform respectively. More than 13 parameters needed to be met according to the Ghana Environmental Protection Agency (EPA) guideline were satisfactorily met whiles ammonia, total suspended solids and phosphate were slightly out of range. From the results obtained, the overall performance of the rehabilitated plant was satisfactory and has seen some improvement with respect to the former recorded performance of the plant. With monitoring operation parameters for waste water plants discharge guidelines becoming stringent over the past years, it could be said that management of the Mudor rehabilitated treatment plant is on the right cause with full scale operation of the plant barely less than a year. Increase in the process steps through rehabilitation resulted in several significant improvements in effluent quality parameters.

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Section: Qualitative Analysis Of Process Influent and Effluentsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance Assessment of the Rehabilitated Mudor Sewage Treatment Plant at James Town Accra-Ghana

Ahmed¹,

Ofori-Amanfo²,

Awuah³

et al. 2018

JWARP

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“…The use of faecal organisms as indicator of water quality has been widely used by many researchers. According to Belhaj et al [33], public health protection concepts originated from such studies. High load could be attributed to unfavorable internal conditions which inhibit the treatment process.…”

Section: Microbial Loadmentioning

confidence: 99%

Characterisation of Wastewater and Treatment Efficiency of Biogas Plants: Effluent Discharge Quality

Osei-Marfo

Oteng-Peprah

Awuah

et al. 2021

JENRR

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Aims: To characterise wastewater, assess effluent quality and treatment efficiency of 3 existing biogas plants in 3 distinct institutions in Ghana and to provide relevant data necessary to policy makers to inform decision and influence policy. Study Design: Laboratory analyses were conducted on wastewater samples from the University of Cape Coast (UCC), Mfantsipim Senior High School (Mfantsipim) and Ankaful Maximum Security Prisons (Ankaful), between January and April 2018. Methodology: In all, 192 wastewater samples were collected from UCC, Mfantsipim and Ankaful for analyses. Physical, chemical and biological parameters were analysed on raw wastewater and on the effluent. Quality parameters were determined using the protocol outlined in the Standard Methods. Results: The results showed significant differences between effluent quality from UCC, Mfantsipim and Ankaful with most of the quality parameters falling within the Ghana Environmental Protection Agency (EPA) guidelines. However, electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), dissolved oxygen (DO), biological oxygen demand (BOD5), chemical oxygen demand (COD), ammonia-nitrogen (NH3-N), total coliforms (T. coli), Escherichia coli (E. coli) and Salmonella spp. (salmonella) exceeded the guideline values. The ratio between BOD5/COD was 0.5 and 0.3 for UCC and Ankaful respectively, indicating high biodegradability while Mfantsipim recorded 0.06, indicating low biodegradability. The parameters which had high treatment efficiency for the biogas plants was UCC (TSS 72.22%, total volatile solids (TVS) 78.41%, BOD5 64.22%, COD 63.56%, PO4 61.29%, T. coli 1.9 log reduction, E. coli less than 1 log reduction, salmonella 1.5 log reduction and vibrio cholerae (V. cholerae) 1 log reduction) followed by Mfantsipim (BOD5 70.45%, COD 83.84%, NO3 79.17%, T. coli 1.6 log reduction, E. coli 5 log reduction, salmonella 1.8 log reduction and V. cholerae complete removal), while Ankaful was (TDS 57.7%, TSS 68.17%, TVS 56.33%, BOD5 82.4%, COD 81.13%, T. coli less than 1 log reduction, E. coli less than 1 log reduction, salmonella less than 1 log reduction and V. cholerae 0.96 log reduction). The rest of the parameters exhibited negative and/or low values. The performance analysis of the three biogas plants showed that UCC performs a little better than Ankaful and far better than Mfantsipim in term of treatment efficiency. Conclusion: The performance analysis indicated that the biogas plants were under-performing which could be attributed to poor maintenance, design deficiencies, poor environmental conditions and voluminous in-put loads. These factors impact the treatment efficiency resulting in relatively poor effluent quality which could put the health of the public at great risk. It is therefore recommended that authorities and policy makers formulate appropriate regulations aimed at addressing the potential impact of poor effluent quality discharged into the environment.

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“…The decomposition of organic fractions of wastewater, mainly by microbes in water, produces some acidic species of mineralized organic materials (CO2, ammonia, NO3 -and organic acids) which plays an important role in shifting of pH scale of treated water 11 .…”

Section: In-situ Field Conditionsmentioning

confidence: 99%

The Effects of Hydraulic Retention Time on Organic Loading Rate in Efficiency of Aerated Lagoons in Treating Rural Domestic Wastewater at El-Oued (South-East Algeria)

Zobeidi¹,

Abdelhafid²,

Ali³

2017

Orient. J. Chem

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This study detailed the effect hydraulic retention time on characteristics of the El-Oued aerated lagoons wastewater treatment plants (WWTPs), located in Southern East Algeria. 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 (2013 -2015). Therefore, the downstream values of BOD5, COD and TSS, are enough to achieve a final effluent that would meet the Algerian standards limit. The retention time is a function of the percent removal of organic load. The retention time may vary from 12 to 20 days as the optimum operating conditions the removal efficiencies 86.5% of BOD5, 78% of COD and TSS 85%. Goodness of the model fit to the data was also evaluated through the relationship between the residuals and the model predicted values of BOD5r, CODr and TSSr. The advantage of this model is that it would allow a better process control.

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

Cited by 11 publications

References 14 publications

Performance Assessment of the Rehabilitated Mudor Sewage Treatment Plant at James Town Accra-Ghana

Performance Assessment of the Rehabilitated Mudor Sewage Treatment Plant at James Town Accra-Ghana

Characterisation of Wastewater and Treatment Efficiency of Biogas Plants: Effluent Discharge Quality

The Effects of Hydraulic Retention Time on Organic Loading Rate in Efficiency of Aerated Lagoons in Treating Rural Domestic Wastewater at El-Oued (South-East Algeria)

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