A review on membrane concentrate management from landfill leachate treatment plants: The relevance of resource recovery to close the leachate treatment loop

Almeida, Ronei de; Porto, Raphael Ferreira; Quintaes, Bianca Ramalho; Bila, Daniele Maia; Lavagnolo, Maria Cristina; Campos, Juacyara Carbonelli

doi:10.1177/0734242x221116212

Cited by 43 publications

(8 citation statements)

References 181 publications

(227 reference statements)

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“…A recent review analyzed landfill leachate pretreatment methods coupled with AD to enhance biogas production [58]. Landfill leachate, as dye effluent, is a complex and inhibitory wastewater for anaerobic processes [58][59][60]. Because of its recalcitrance, biotreatments necessitate employing other techniques to complement and support the AD.…”

Section: Bioenergy Productionmentioning

confidence: 99%

A Short Review on Dye Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

Almeida,

Guimarães

2023

Preprint

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Dye-containing effluent generated in textile industries is polluting and complex wastewater. It should be managed adequately before the final destination. The up-flow anaerobic blanket (UASB) reactor application is an eco-friendly and cost-competitive treatment. The present study briefly reviews the UASB application for dye wastewater valorization. Bioenergy and clean water production potential during dye-containing wastewater treatment are emphasized to promote resource recovery in textile industries. Efficiencies of color and chemical oxygen demand of 50–97% and 60–90% are reported in bench-scale UASB studies. A biogas yield of 0.36–36.04 L d-1 in UASB, which treats dye-containing effluents, is documented. Bioenergy production and water reuse allow environmental and economic benefits. However, data on full-scale UASB treating dye wastewater are missing. Besides, studies on combined systems integrating membrane processes, such as ultrafiltration and nanofiltration, and pretreatment of wastewater and sludge for improvements in biogas production might realize the complete potential for resource recovery of UASB technology.

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Section: Bioenergy Productionmentioning

confidence: 99%

A Short Review on Dye Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

Almeida,

Guimarães

2023

Preprint

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“…A recent review analyzed landfill-leachate pretreatment methods coupled with AD to enhance biogas production [76]. Landfill leachate, as a dye effluent, is a complex and inhibitory wastewater for anaerobic processes [76][77][78][79]. Because of its recalcitrance, biotreatments necessitate employing other techniques to complement and support the AD.…”

Section: Bioenergy Productionmentioning

confidence: 99%

A Short Review on Dye-Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

de Almeida,

de Souza Guimarães

2023

Waste

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Dye-containing effluent generated in textile industries is polluting and complex wastewater. It should be managed adequately before its final destination. The up-flow anaerobic blanket (UASB) reactor application is an ecofriendly and cost-competitive treatment. The present study briefly reviews the UASB application for dye-containing wastewater valorization. Bioenergy and clean-water production potential during dye-containing wastewater treatment are emphasized to promote resource recovery in textile industries. Hydraulic retention time (HRT), organic loading rate (OLR), pH, temperature, and hydraulic mixing influence sludge granulation, microbial activity, and dye removal. HRT and OLR ranges of 6–24 h and 1–12 kg m−3 d−1 of chemical oxygen demand (COD) at a mesophilic temperature (30–40 °C) are recommended for efficient treatment. In these conditions, efficiencies of color and COD of 50–97% and 60–90% are reported in bench-scale UASB studies. Complex dye structures can hinder biomineralization. Pretreatment may be necessary to reduce dye concentration. Carbon-source and redox mediators are added to the UASB reactor to expedite kinetic reactions. A biogas yield of 1.48–2.70 L d−1 in UASB, which treats dye-containing effluents, is documented. Cotreatment of dye wastewater and locally available substrate could increase biogas productivity in UASB reactors. Organic waste generated in the textile industry, such as dye sludge, cotton, and starch, is recommended to make cotreatment cost competitive. Bioenergy production and water reuse allow environmental and economic benefits. Studies on combined systems integrating UASB and membrane processes, such as ultrafiltration and nanofiltration, for the production of reusable water and pretreatment of wastewater and sludge for improvements in biogas production might realize the complete potential for resource recovery of UASB technology. UASB bioenergy usage for integrated treatment trains can reduce operating costs and assist process sustainability in the textile industry.

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“…Moreover, mitigation of leachate helps to cool down the waste material, reducing the amount of heat generated within the landfill 11 , 12 . In addition, reintroduction of leachate in landfills results in improved aeration within the landfill, promoting the growth of aerobic bacteria and reducing the accumulation of heat and leachate 13 , 14 . This is eventually helpful in preventing its leakage to the nearby water sources, and hence, any water contamination.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

Khan,

Mufazzal,

Sherwani

et al. 2023

Sci Rep

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Landfill leachates contain harmful substances viz. chemicals, heavy metals, and pathogens, that pose a threat to human health and the environment. Unattended leachate can also cause ground water contamination, soil pollution and air pollution. This study focuses on management of leachate, by recirculating the rich, nutrient-filled fluid back into the landfills, turning it to a bioreactor, thereby maximising the performance parameters of landfills favourable for electricity production by the waste to energy plants. This study demonstrates a sustainable alternative method for utilising the fluid, rather than treating it using an extremely expensive treatment process. Further, it also experimentally investigates the effect of varying levels of five input parameters of the landfill including waste particle size, waste addition, inorganic content in waste, leachate recirculation rate, and landfill age, each at five levels, on the multiple performance of the landfill using Taguchi’s L25 standard orthogonal array. Experimental results are analysed using an integrated MCDM approach i.e. MEREC-PIV method and statistical techniques such as analysis of mean (ANOM) and analysis of variance (ANOVA). The results indicate that the optimal setting of the input parameters is waste particle size at 9 ppm, waste addition at 80 Ktoe, inorganic content in waste at 2%, leachate recirculation rate at 250 l/day and landfill age at 3 years. Further, inorganic content waste is found to be the most significant parameter for the multiple performance of the landfill. This study presents a novel approach to produce input parameters for power plants which may enhance their profitability and sustainability.

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A review on membrane concentrate management from landfill leachate treatment plants: The relevance of resource recovery to close the leachate treatment loop

Cited by 43 publications

References 181 publications

A Short Review on Dye Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

A Short Review on Dye Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

A Short Review on Dye-Wastewater Valorization Using Up-Flow Anaerobic Sludge Blanket Reactors

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

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