scholarly journals Responsive, self-cleaning membranes for fouling control in advanced agricultural wastewater treatment

2014 ◽  
Author(s):  
Guy Ramon ◽  
Sumith Ranil Wickramasinghe ◽  
Xianghong Qian
Keyword(s):  
Wastewater Treatment ◽  
Fouling Control ◽  
Agricultural Wastewater ◽  
Self Cleaning

Wastewater treatment and fouling control in an electro algae-activated sludge membrane bioreactor

2021 ◽  
pp. 147475
Author(s):  
Mary Vermi Aizza Corpuz ◽  
Laura Borea ◽  
Vincenzo Senatore ◽  
Fabiano Castrogiovanni ◽  
Antonio Buonerba ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Membrane Bioreactor ◽  
Fouling Control

scholarly journals Direct Osmosis for Reverse Osmosis Fouling Control: Principles, Applications and Recent Developments

2009 ◽  
Vol 3 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Jian-Jun Qin ◽  
Boris Liberman ◽  
Kiran A. Kekre ◽  
Ado Gossan
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Chemical Potential ◽  
Water Desalination ◽  
Water And Wastewater Treatment ◽  
High Pressure Pump ◽  
Permeable Membrane ◽  
Fouling Control ◽  
Ro Membrane

Reverse osmosis (RO) has been widely applied in various water and wastewater treatment processes as a promising membrane technology. However, RO membrane fouling is a global issue, which limits it operating flux, decreases water production, increases power consumption and requires periodical membranes Cleaning-in-Place (CIP) procedure. This may result in low effectiveness, high cost and adds environmental issues related to the CIP solutions disposal. Forward osmosis (FO) or direct osmosis (DO) is the transport of water across a semi-permeable membrane from higher water chemical potential side to lower water chemical potential side, which phenomenon was observed in 1748. The engineered applications of FO/DO in membrane separation processes have been developed in food processing, wastewater treatment and seawater/brackish water desalination. In recent years, DO has been increasingly attractive for RO fouling control as it is highly efficient and environmentally friendly technique which is a new backwash technique via interval DO by intermittent injection of the high salinity solution without stoppage of high pressure pump or interruption of the operational process and allows keeping RO membrane continuously clean even in heavy bio-fouling conditions and operating RO membranes at high flux. This paper provides the state-of-the-art of the physical principles and applications of DO for RO fouling control as well as its strengths and limitations.

scholarly journals Governing Transactions and Interdependences between Linked Value Chains in a Circular Economy: The Case of Wastewater Reuse in Braunschweig (Germany)

2018 ◽  
Vol 10 (4) ◽  
pp. 1125 ◽  
Author(s):  
Oliver Maaß ◽  
Philipp Grundmann
Keyword(s):  
Wastewater Treatment ◽  
Circular Economy ◽  
Crop Production ◽  
Local Level ◽  
Wastewater Reuse ◽  
Value Chains ◽  
Governance Structures ◽  
Structured Interviews ◽  
Agriculture Sector ◽  
Agricultural Wastewater

Reusing wastewater in agriculture has attracted increasing attention as a strategy to support the transition towards the circular economy in the water and agriculture sector. As a consequence, there is great interest in solutions for governing the transactions and interdependences between the associated value chains. This paper explores the institutions and governance structures for coordinating transactions and interdependences between actors in linked value chains of wastewater treatment and crop production. It aims to analyze how transactions and interdependences shape the governance structures for reusing wastewater at the local level. A transaction costs analysis based on data from semi-structured interviews and a questionnaire is applied to the agricultural wastewater reuse scheme of the Wastewater Association Braunschweig (Germany). The results show that different governance structures are needed to match with the different properties and requirements of the transactions and activities between linked value chains of wastewater treatment and crop production. Interdependences resulting from transactions between wastewater providers and farmers increase the need for hybrid and hierarchical elements in the governance structures for wastewater reuse. The authors conclude that aligning governance structures with transactions and interdependences is key to efficiently governing transactions and interdependences between linked value chains in a circular economy.

Innovative encapsulated self-forming dynamic bio-membrane bioreactor (ESFDMBR) for efficient wastewater treatment and fouling control

2022 ◽  
Vol 805 ◽  
pp. 150296
Author(s):  
Fabiano Castrogiovanni ◽  
Laura Borea ◽  
Mary Vermi Aizza Corpuz ◽  
Antonio Buonerba ◽  
Giovanni Vigliotta ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Membrane Bioreactor ◽  
Fouling Control

New technologies for on-site domestic and agricultural wastewater treatment

2001 ◽  
Vol 28 (S1) ◽  
pp. 115-123 ◽  
Author(s):  
Douglas Joy ◽  
Claude Weil ◽  
Anna Crolla ◽  
Shelly Bonte-Gelok
Keyword(s):  
Wastewater Treatment ◽  
New Technologies ◽  
Agricultural Wastewater
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