The study of potable water treatment process in Algeria (boudouaou station) -by the application of life cycle assessment (LCA)

Messaoud-Boureghda, Mohamed-Zine; Aksas, H.; Louhab, K.

doi:10.1186/2052-336x-11-37

Cited by 11 publications

(10 citation statements)

References 23 publications

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“…The MBR process can result in a highly clarified effluent without the necessity to add a coagulation product, which is usually required in a conventional MBBR. In general, coagulation agents have a relatively high impact on the environment 34 …”

Section: Resultsmentioning

confidence: 99%

Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor

Yang

López‐Grimau

Vilaseca

et al. 2021

Coloration Technology

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A laboratory‐scale pilot plant of moving bed biofilm reactor coupled with membrane bioreactor (MBBR‐MBR) was studied with regard to wastewater treatment in the textile industry, and the reuse feasibility of treated water was investigated. The pilot plant comprised two connected parts: an aerobic tank filled with carriers and a submerged membrane tank. The MBBR‐MBR system reduced the hydraulic retention time to 1 day, which is very promising compared with conventional biological treatment in the textile industry. The removal efficiency of chemical oxygen demand reached 93%, which is almost the maximum for a biological process treating this type of wastewater, as well as the colour removal performance, which achieved 85%. Additionally, 99% of total suspended solids were removed due to filtration. Furthermore, new dyeing processes reusing the treated water were performed. The quality of the new dyed fabrics with treated water was compared with reference fabrics. Colour differences between new dyed fabrics and reference fabrics were found to be within the general requirement of the textile industry (ΔECMC(2:1) < 1). The reuse of treated water in new dyeing processes is beneficial both for the industry and for the environment, because the textile sector is an intensive water consumer during both the dyeing and finishing processes.

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Section: Resultsmentioning

confidence: 99%

Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor

Yang

López‐Grimau

Vilaseca

et al. 2021

Coloration Technology

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“…In the previous study of CAS treating the same wastewater, the average removal rate of COD, color and TSS was 83%, 55% and 66%, respectively [39]. The comparison of the treating efficiency of the hybrid MBBR-MBR system and the CAS system is shown in Table 4.…”

Section: Efficiency Of the Mbbr-mbrmentioning

confidence: 93%

“…The OPEX values of a CAS plant in our previous study [39] are listed for the comparison with MBBR-MBR. The detailed OPEX calculation of the existing CAS plant and the MBBR-MBR plant is demonstrated in Tables 6 and 7, respectively.…”

Section: Operational Expenditures (Opex)mentioning

confidence: 99%

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Reduction of Cost and Environmental Impact in the Treatment of Textile Wastewater Using a Combined MBBR-MBR System

Yang

López‐Grimau

2021

Membranes

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A hybrid Moving Bed Biofilm Reactor—Membrane Bioreactor (MBBR-MBR) was developed for the treatment of wastewater from a Spanish textile company. Compared with conventional activated sludge (CAS) treatment, the feasibility of this hybrid system to reduce economic and environmental impact on an industrial scale was conducted. The results showed that, technically, the removal efficiency of COD, TSS and color reached 93%, 99% and 85%, respectively. The newly dyed fabrics performed with the treated wastewater were qualified under the standards of the textile industry. Economically, the values of Capital Expenditure (CAPEX) calculated for the hybrid MBBR-MBR system are profitable because of the reduction in Operational Expenditure (OPEX) when compared with CAS treatment, due to the lower effluent discharge tax thanks to the higher quality of the effluent and the decolorizing agent saved. The result of Net Present Value (NPV) and the Internal Rate of Return (IRR) of 18% suggested that MBBR-MBR is financially applicable for implantation into the industrial scale. The MBBR-MBR treatment also showed lower environmental impacts than the CAS process in the life cycle assessment (LCA) study, especially in the category of climate change, thanks to the avoidance of using extra decolorizing agent, a synthetic product based on a triamine.

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“…Nigeria [13] Assessed application of the water energy nexus in the MENA region, bearing in mind desalination as the treatment process. North Africa [53] Conducted a life cycle assessment of portable water production and associated impact to the environment. Algeria [42] Explored the use of solar powered pumps for rural water supply.…”

Section: Referencementioning

confidence: 99%

Applying the Water-Energy Nexus for Water Supply—A Diagnostic Review on Energy Use for Water Provision in Africa

Macharia¹,

Kreuzinger²,

Kitaka

2020

Water

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This work explores the application of the Water-Energy Nexus concept for water supply in the African context, where its operationalization is quite limited compared to developed regions. Furthermore, water supply and demand drivers and their influence on energy use are examined. This study found that there is limited literature available on the operationalization of the concept, and energy use is not considered a key performance indicator by water regulators and utilities. Regionally, most of the studies were carried out in the northern and southern Africa, where energy demand for water supply through desalination is high. An analysis of water supply and demand drivers show diminishing quantities of available freshwater, and increased anthropogenic pollutant loads in some areas are projected. Consequently, utilities will likely consider alternative energy-intensive water supply options. Increased population growth with the highest global urban growth rate is projected, with about 60% of the total population in Africa as urban dwellers by 2050. This implies huge growth in water demand that calls for investment in technology, infrastructure, and improved understanding of energy use and optimization, as the largest controllable input within utilities boundaries. However, it requires a data-driven understanding of the operational drivers for water supply and incorporation of energy assessment metrics to inform water-energy policies and to exploit the nexus opportunities.

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The study of potable water treatment process in Algeria (boudouaou station) -by the application of life cycle assessment (LCA)

Cited by 11 publications

References 23 publications

Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor

Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor

Reduction of Cost and Environmental Impact in the Treatment of Textile Wastewater Using a Combined MBBR-MBR System

Applying the Water-Energy Nexus for Water Supply—A Diagnostic Review on Energy Use for Water Provision in Africa

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