Zero-liquid discharge concentrate disposal systems

Voutchkov, Nikolay; Kaiser, Gisela

doi:10.1016/b978-0-12-818045-7.00009-9

Cited by 4 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the approaches aimed at reducing this problem is Zero Liquid Discharge (ZLD) [9], and recently the Minimum Liquid Discharge (MLD) with which the fresh water recovery can reach values of 2.21 US $/m 3 [146]. Evaporation tanks are also used with the subsequent disposal of saline solids in sanitary landfills, causing impacts related to changes in land use, energy consumption, and its possible leaching into groundwater [147].…”

Section: Limitations and Problems Of Romentioning

confidence: 99%

Recent Desalination Technologies by Hybridization and Integration with Reverse Osmosis: A Review

Feria-Díaz

Correa-Mahecha

López-Méndez

et al. 2021

Water

View full text Add to dashboard Cite

Reverse osmosis is the leading technology for desalination of brackish water and seawater, important for solving the growing problems of fresh water supply. Thermal technologies such as multi-effect distillation and multi-stage flash distillation still comprise an important portion of the world’s desalination capacity. They consume substantial amounts of energy, generally obtained from fossil fuels, due to their low efficiency. Hybridization is a strategy that seeks to reduce the weaknesses and enhance the advantages of each element that makes it up. This paper introduces a review of the most recent publications on hybridizations between reverse osmosis and thermal desalination technologies, as well as their integration with renewable energies as a requirement to decarbonize desalination processes. Different configurations provide improvements in key elements of the system to reduce energy consumption, brine production, and contamination, while improving product quality and production rate. A combination of renewable sources and use of energy and water storage systems allow for improving the reliability of hybrid systems.

show abstract

Section: Limitations and Problems Of Romentioning

confidence: 99%

Recent Desalination Technologies by Hybridization and Integration with Reverse Osmosis: A Review

Feria-Díaz

Correa-Mahecha

López-Méndez

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

“…Furthermore, it is important to note that MLD/ZLD systems are associated with unintended environmental impacts as a result of their high energy demand and carbon footprint. Other major issues of MLD/ZLD systems include fouling, scaling and expensive metallic materials ( Voutchkov and Kaiser, 2020 ). Therefore, future research to addresses these drawbacks are needed.…”

Section: Nf and Romentioning

confidence: 99%

“…At the end of the FO filtration, the DS is recovered and recycled back to the FO unit while the permeate may need further treatment for its direct discharge or reuse ( Wu et al, 2018 ). The energy consumption of FO systems without DS regeneration is notably lower (0.2–0.9 vs 10–14 kWh m −3 ) ( Voutchkov and Kaiser, 2020 ); therefore, from an energy-efficient and resource recovery point of view, the selection of a fertilizer draw solute for FO application can be an attractive strategy. Li et al (2017) investigated a FO system using NH 4 HCO 3 (3 mol L −1 ) as the DS to treat LFL.…”

Section: Resource Recovery Optionsmentioning

confidence: 99%

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

Almeida

Porto

Quintaes³

et al. 2022

Waste Manag Res

View full text Add to dashboard Cite

Membrane filtration processes have been used to treat landfill leachate. On the other hand, closing the leachate treatment loop and finding a final destination for landfill leachate membrane concentrate (LLMC) – residual stream of membrane systems – is challenging for landfill operators. The re-introduction of LLMC into the landfill is typical; however, this approach is critical as concentrate pollutants may accumulate in the leachate treatment facility. From that, leachate concentrate management based on resource recovery rather than conventional treatment and disposal is recommended. This work comprehensively reviews the state-of-the-art of current research on LLMC management from leachate treatment plants towards a resource recovery approach. A general recovery train based on the main LLMC characteristics for implementing the best recovery scheme is presented in this context. LLMCs could be handled by producing clean water and add-value materials. This paper offers critical insights into LLMC management and highlights future research trends.

show abstract

Membranes in Landfill Leachate Treatment: Evaluation of the Generated Concentrate

de Almeida,

Campos

2024

Springer Water

View full text Add to dashboard Cite

Zero-liquid discharge concentrate disposal systems

Cited by 4 publications

References 8 publications

Recent Desalination Technologies by Hybridization and Integration with Reverse Osmosis: A Review

Recent Desalination Technologies by Hybridization and Integration with Reverse Osmosis: A Review

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

Membranes in Landfill Leachate Treatment: Evaluation of the Generated Concentrate

Contact Info

Product

Resources

About