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Wei Wang, Haoran Guo, Fei Li, Lu Zhen and Shuaian Wang
Ship fouling has significant adverse effects on vessel performance and environmental sustainability. Therefore, this research study develops a bi-level programming model to simultaneously optimize cleaning equipment deployment by cleaning service provide...
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Jiaqi Ding, Ying Wan, Yujia Zou, Songlin Wang, Xiaolong Huang and Pengchao Xie
Sodium hypochlorite (NaClO) solution is wildly used to remove membrane fouling-derived organic materials and restore membrane flux, which can result in the formation of halogenated by-products. To reduce the halogenated by-products, a combined cleaning p...
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Shukui Liu, Haoliang Chen, Baoguo Shang and Apostolos Papanikolaou
Ship hull and propeller fouling has a severe impact both on fuel costs and on greenhouse gas emission, thus, it is an important subject to consider when developing a maintenance plan to enhance energy efficiency and reduce gas emissions from ships. This ...
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Sudesh Yadav, Ibrar Ibrar, Salam Bakly, Daoud Khanafer, Ali Altaee, V. C. Padmanaban, Akshaya Kumar Samal and Alaa H. Hawari
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 th...
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Habiba Lais, Premesh S. Lowe, Luiz C. Wrobel and Tat-Hean Gan
non-invasive ultrasonic cleaning technology for subsea pipelines.
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Daegil Park, Jong-Boo Han, Teakyeong Yeu, Su-gil Cho, Seongsoon Kim, Hyungwoo Kim and Yeongjun Lee
Fouling organisms reduce a ship?s fuel efficiency and disturb the ecosystem. Therefore, the International Maritime Organization (IMO) and many nations have enacted laws that mandate periodic hull cleaning for removing fouling organisms. However, cleaning...
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Nastia Degiuli, Andrea Farkas, Ivana Martic and Carlo Giorgio Grlj
Biofouling attaches to immersed surfaces in between hull cleanings. Due to high speeds and relatively short port times, biofilm often attaches to the immersed surfaces of containerships. In most cases, this type of fouling is not given much importance si...
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J. Moreno, N. de Hart, M. Saakes, K. Nijmeijer
Pág. 23 - 31
When natural feed waters are used in the operation of a reverse electrodialysis (RED) stack, severe fouling on the ion exchange membranes and spacers occurs. Fouling of the RED stack has a strong influence on the gross power density output; which can dec...
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Dinis Oliveira and Lena Granhag
Biofouling is detrimental to the hydrodynamic performance of ships. In spite of advances in hull coating technology, a ship must usually undergo underwater hull cleaning to remove biofouling during her in-service time. However, some cleaning practices ma...
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Chao Li, Gang Wang, Kaiyun Chen, Peng Jia, Liquan Wang, Xiangyu Wang and Feihong Yun
In this paper, a cleaning robot is designed to remove the marine fouling attached to a marine steel pile. In the following study, in order to analyse the process of cleaning marine fouling attached to a rough substrate, the barnacle is taken as a typical...
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Simegnsh Bekele Dekebo, Gi-Taek Oh and Min-Woo Lee
A moving window decision-making algorithm is proposed for the cleaning schedule optimization of heat exchanger network system subject to fouling in refinery crude preheat train. This algorithm is designed by incorporating the moving window scheme into a ...
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Wenliang Qiu, Vikram Pakrashi and Bidisha Ghosh
Fishing net cleanliness plays a critical role for aquaculture industry as bio-fouled nets restrict the flow of water through the net leading to a build-up of toxins and reduced oxygen levels within the pen, thereby putting the fish under increased stress...
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Xing Zheng, Frederik Zietzschmann, Stephan Plume, Hendrik Paar, Mathias Ernst, Zi Wang and Martin Jekel
The present work focuses on understanding and control of biopolymer fouling in ultrafiltration of a typical surface water and nearby secondary effluent for direct and indirect portable use. Characterization results show that both kinds of biopolymers are...
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Xing Zheng, Frederik Zietzschmann, Stephan Plume, Hendrik Paar, Mathias Ernst, Zi Wang, Martin Jekel
Pág. 1 - 17
The present work focuses on understanding and control of biopolymer fouling in ultrafiltration of a typical surface water and nearby secondary effluent for direct and indirect portable use. Characterization results show that both kinds of biopolymers are...
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Chao Li, Nan Pang, Kai Xu, Qingling Geng, Xiangyu Wang, Feihong Yun and Lei Gao
In order to clean up marine fouling attached to marine steel pile, this paper proposed an innovative configuration scheme of the marine steel pile cleaning equipment by the scraping method and its telescopic mechanism by applying a multi-cylinder synchro...
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Christopher M. Collins and Md. Safiuddin
A universal infrastructural issue is wetting of surfaces; millions of dollars are invested annually for rehabilitation and maintenance of infrastructures including roadways and buildings to fix the damages caused by moisture and frost. The biomimicry of ...
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Faisal I. Hai, Shufan Yang, Muhammad B. Asif, Vitor Sencadas, Samia Shawkat, Martina Sanderson-Smith, Jody Gorman, Zhi-Qiang Xu and Kazuo Yamamoto
Carbamazepine (CBZ), a pharmaceutical compound, has been proposed as an anthropogenic marker to assess water quality due to its persistence in conventional treatment plants and widespread presence in water bodies. This paper presents a comprehensive lite...
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Loukas Lintzos, Kostas Chatzikonstantinou, Nikolaos Tzamtzis and Simos Malamis
In this work, different backwash (BW) schemes were applied on identical hollow fiber (HF) membranes in a membrane bioreactor (MBR) treating municipal wastewater. The effect of BW duration (1 min, 3 min and 8 min) and water temperature (8 °C, 18 °C, 28 °C...
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Loukas Lintzos, Kostas Chatzikonstantinou, Nikolaos Tzamtzis and Simos Malamis
In this work, different backwash (BW) schemes were applied on identical hollow fiber (HF) membranes in a membrane bioreactor (MBR) treating municipal wastewater. The effect of BW duration (1 min, 3 min and 8 min) and water temperature (8 °C, 18 °C, 28 °C...
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Ivon Drijer and Karin Schroën
Shear induced diffusion (SID) based flow segregation is a technique that can be used for concentration and fractionation purposes, and it has the potential to become an economical and sustainable alternative for e.g., membrane separation. When compared t...
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