Hybrid membrane distillation: Resource, nutrient and energy recovery
TL;DR: In this article, the performance and related challenges of various hybrid Membrane Distillation (MD) systems with a focus on resource recovery are discussed. And future suggestions for improving hybrid MD are discussed, specifically pilot-scale application, module configuration and membrane development.
About: This article is published in Journal of Membrane Science.The article was published on 2020-01-10. It has received 85 citations till now. The article focuses on the topics: Environmental pollution.
Citations
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TL;DR: In this paper, the potential environmental impacts of seawater desalination are evaluated and mitigative measures to counterbalance these unfavorable impacts are critically appraised, and the brine management technologies for the disposal of reject stream, recovery of precious materials and water, and production of useful chemicals are also reviewed.
92 citations
TL;DR: In this article, a review of the potential alternative technologies for reverse osmosis (RO) desalination of seawater is presented, and the major recent advancements in each field are discussed, such as higher salt rejection (CDI, MD), higher recovery of water (MD), fewer pre-treatment stages (MD, FO), and the ability to use low-grade energy (MD and FO).
80 citations
TL;DR: In this article, the authors provide an overview of different sources of oily wastewater and techniques used for the treatment of oil-containing feed streams along with the discussion of their merits and demerits.
Abstract: The treatment of oil or surfactant-containing wastewater emitted from diverse sources is imperative to meet the ever-growing requirement of clean and drinking water. Membrane Distillation (MD) has been considered as one of the propitious technologies for the treatment of highly saline wastewater. In addition to saline water, lately, it has been also used for the purification of the oil-containing feed stream. In this paper, we begin with an overview of different sources of oily wastewater and techniques used for the treatment of oil-containing feed streams along with the discussion of their merits and demerits. Further, we provide a deep insight into the MD process with its configurations, the perceptive of different researchers during the MD investigation for treating various types of oil-in-water emulsions, and the development of the amphiphobic, omniphobic, or Janus membrane particularly suitable for the low-surface tension liquids. Also, the MD operating variables and their influence pattern on MD flux have been briefly discussed. The paper highlights that the integrated or hybrid MD systems can effectively reduce the membrane fouling or pore wetting by removing the foulant up to a great extent using ultrafiltration, coagulation/flocculation, microfiltration, forward osmosis, etc. as the pre-treatment steps.
76 citations
TL;DR: In this paper, the authors present and discuss trends and scientific developments about recovery of value-added products from dye industry effluent with emphasis on nanotechnological approaches and microbial electrochemical technologies (METs).
Abstract: Increased population and industrialization generate a large number of organic pollutants that create problems on the planet earth. The level of freshwater is reducing which has pushed the society to reuse/recycle wastewater. Eco-friendly and economically sound treatment of industrial wastewater has attracted global attention and hence is a thrust area of research. Organic compounds rich wastewater can be used to generate bioenergy and value-added products from the resource recovery point of view. Wastewater treatment(s) can be used to trap energy from industrial effluents in form of biofuel, bioenergy and biogas. Recovered products can be used in various ways such as recovered nutrients for (bio)fertilizer production and algal biomass for bioplastic production. Microbial electrochemical technology is a promising approach for resource recovery. This review article aims to present and discuss trends and scientific developments about recovery of value-added products from dye industry effluent. It also provides state-of-art technical information about technologies for remediation of pollutants from dye industry effluent with emphasis on nanotechnological approaches and microbial electrochemical technologies (METs). It narrates literature on classification and properties of dyes, effects of dye pollutants on environment and human health and factors affecting degradation of dyes. Generation of bioenergy and recovery of valuables from dye industrial wastewater along with challenges and perspectives of this research area have been covered.
75 citations
TL;DR: In this paper, the authors summarized the current and recent trends in membrane desalination processes used for agricultural purposes and discussed the challenges being faced with desalinating seawater/brackish water and wastewater are discussed.
64 citations
References
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TL;DR: In this paper, the authors present how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment, and represent the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable resources.
Abstract: Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because they can, in principle, exponentially exceed the world׳s energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy resources.
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TL;DR: In this paper, the most important aspects of the membrane distillation process are presented in a simple manner for a glance understanding the effects of different factors and operating variables on the productivity of each MD configuration.
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TL;DR: A comprehensive MD state-of-the-art review covering a wide range of commercial membranes, MD membrane engineering, their MD performance, transport mechanisms, experimental and theoretical modeling of different MD configurations as well as recent developments in MD is offered.
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TL;DR: In this paper, a review of different fouling mechanisms in the membrane distillation process, their possible mitigation and control techniques, and characterization strategies that can be of help in understanding and minimizing the fouling problem.
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TL;DR: In this paper, the authors summarize the recent advances in Membrane distillation and provide perspectives for its future R&D, including membrane materials, module configurations, process applications and hybrid systems.
716 citations