Ultraviolet/persulfate pre-treatment for organic fouling mitigation of forward osmosis membrane: Possible application in nutrient mining from dairy wastewater

Pramanik, Biplob Kumar; Hai, Faisal I.; Roddick, Felicity

doi:10.1016/j.seppur.2019.02.016

Cited by 37 publications

(9 citation statements)

References 44 publications

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“…Several studies show that the wastewater pre-treatment at dairy industries are beneficial to the environment (Qasim and Mane, 2013). Several methods, such as membrane filtration, reverse osmosis, coagulation and air-flotation are implemented worldwide for the treatment of dairy effluents (Vourch et al ., 2008; Pramanik et al ., 2019; Pereira et al ., 2020), but only a few of the Latvian dairies adopted such advanced treatment technology to treat their wastewater. The presence of fats, oils, and solid components in dairy wastewater can create several problems in wastewater treatment plants, thus it is advisable for industries to employ onsite treatment to separate these compounds prior either further treatment or discharge.…”

Section: Discussionmentioning

confidence: 99%

Case study on the dairy processing industries and their wastewater generation in Latvia

Ekka

Dejus

Juhna

2021

Journal of Dairy Research

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The objective of the research presented in this Research Communication was to access the environmental impact of the Latvian dairy industries. Site visits and interviews at Latvian dairy processing companies were done in order to collect site-specific data. This includes the turnover of the dairy industries, production, quality of water in various industrial processes, the flow and capacity of the sewage including their characteristic, existing practices and measures for wastewater management. The results showed that dairy industries in Latvia generated in total approximately 2263 × 103 m3 wastewater in the year 2019. The Latvian dairy effluents were characterized with high chemical oxygen demand (COD), biological oxygen demand (BOD) and total solids (TS). Few dairy plants had pre-treatment facilities for removal of contaminants, and many lacked onsite treatment technologies. Most facilities discharged dairy wastewater to municipal wastewater treatment plants. The current study gives insight into the Latvian dairy industries, their effluent management and pollution at Gulf of Riga due to wastewater discharge.

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Section: Discussionmentioning

confidence: 99%

Case study on the dairy processing industries and their wastewater generation in Latvia

Ekka

Dejus

Juhna

2021

Journal of Dairy Research

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“…The impact of ultraviolet/persulfate (UV/PS) oxidation pre-treatment for the mitigation of organic fouling during the FO process for anaerobically treated dairy effluent (ATDE) was investigated using a multi-cycle filtration method [142]. The authors compared the UV/PS performance with control pre-treatments such as stand-alone ultraviolet (UV) irradiation and potassium persulfate (PS) oxidation.…”

Section: Ultrasound Technique In Fo Processmentioning

confidence: 99%

A Review on the Development of an Integer System Coupling Forward Osmosis Membrane and Ultrasound Waves for Water Desalination Processes

2022

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This review considers the forward osmosis (FO) membrane process as one of the feasible solutions for water desalination. Different aspects related to the FO process are reviewed with an emphasis on ultrasound assisted FO membrane processes. The different types of membranes used in FO are also reviewed and discussed; thus, their configuration, structure and applications are considered. Coupling ultrasound with FO enhances water flux through the membrane under certain conditions. In addition, this review addresses questions related to implementation of an ultrasound/FO system for seawater desalination, such as the impact on fouling, flow configuration, and location of fouling. Finally, the mechanisms for the impact of ultrasound on FO membranes are discussed and future research directions are suggested.

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“…This study also reported that low molecular weight organics have a strong binding with the CTA membrane than high molecular ones. However, building blocks and humic-like substances contributed more than the low molecular organic foulants to the irreversible fouling on the TFC Porifera membrane used for treating dairy wastewater [116]. Furthermore, it was found that the initial foulants on the membrane surface were high molecular weight organics when secondary wastewater effluent was used as a feed solution for a CTA membrane and 0.5 M NaCl draw solution [117].…”

Section: Characteristics Of Organic Foulants In Real Wastewatermentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

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Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, we reviewed organic fouling in the forward osmosis by focusing on wastewater treatment applications. Model organic foulants used in the forward osmosis literature were highlighted, which were followed by the characteristics of organic foulants when real wastewater was used as feed solution. The various physical and chemical cleaning protocols for the organic fouled membrane are also discussed. The study also highlighted the effective pre-treatment strategies that are effective in reducing the impact of organic fouling on the forward osmosis (FO) membrane. The efficiency of cleaning methods for the removal of organic fouling in the FO process was investigated, including recommendations on future cleaning technologies such as Ultraviolet and Ultrasound. Generally, a combination of physical and chemical cleaning is the best for restoring the water flux in the FO process.

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Ultraviolet/persulfate pre-treatment for organic fouling mitigation of forward osmosis membrane: Possible application in nutrient mining from dairy wastewater

Cited by 37 publications

References 44 publications

Case study on the dairy processing industries and their wastewater generation in Latvia

Case study on the dairy processing industries and their wastewater generation in Latvia

A Review on the Development of an Integer System Coupling Forward Osmosis Membrane and Ultrasound Waves for Water Desalination Processes

Organic Fouling in Forward Osmosis: A Comprehensive Review

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