Integrated nanofiltration membrane process for water and wastewater treatment

Abstract. The application of membrane technology in water and wastewater treatment is increasing due to stringent water quality standards. Nanofiltration (NF) is one of the widely used membrane processes for water and wastewater treatment in addition to other applications such as desalination. NF has replaced reverse osmosis (RO) membranes in many applications due to lower energy consumption and higher flux rates. This paper briefly reviews the application of NF for water and wastewater treatment including fundamentals of membrane process in general, mechanisms of NF process including few basic models. fouling challenges and their control mechanisms adopted.

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Evaluation of a long-term operation of a submerged nanofiltration membrane bioreactor (NF MBR) for advanced wastewater treatment

Water Science & Technology ◽

10.2166/wst.2006.185 ◽

2006 ◽

Vol 53 (6) ◽

pp. 131-136 ◽

Cited By ~ 14

Author(s):

J.-H. Choi ◽

K. Fukushi ◽

H.Y. Ng ◽

K. Yamamoto

Keyword(s):

Organic Matter ◽

Wastewater Treatment ◽

Membrane Bioreactor ◽

Nanofiltration Membrane ◽

Treatment Efficiency ◽

Water And Wastewater Treatment ◽

Term Operation ◽

Water And Wastewater ◽

High Rejection

Nanofiltration (NF) is considered as one of the most promising separation technologies to obtain a very good-quality permeate in water and wastewater treatment. A submerged NF membrane bioreactor (NF MBR) using polyamide membranes was tested for a long-term operation and the performance of the NF MBR was compared with that of a microfiltration MBR (MF MBR). Total organic carbon (TOC) concentration in the permeate of the NF MBR ranged from 0.5 to 2.0 mg/L, whereas that of the MF MBR showed an average of 5 mg/L. This could be explained by the tightness of the NF membrane. Although the concentration of organic matter in the supernatant of the NF MBR was higher than that in the permeate due to high rejection by the NF membrane, the NF MBR showed excellent treatment efficiency and satisfactory operational stability for a long-term operation.

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Chemical Water and Wastewater Treatment V

10.1007/978-3-642-72279-0 ◽

1998 ◽

Cited By ~ 1

Keyword(s):

Wastewater Treatment ◽

Water And Wastewater Treatment ◽

Water And Wastewater ◽

Chemical Water

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Chemical Water and Wastewater Treatment II

10.1007/978-3-642-77827-8 ◽

1992 ◽

Keyword(s):

Wastewater Treatment ◽

Water And Wastewater Treatment ◽

Water And Wastewater ◽

Chemical Water

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DESIGN CONSIDERATION IN HORIZONTAL FLOW GRIT CHAMBER FOR WATER AND WASTEWATER TREATMENT PLANT

i-manager’s Journal on Civil Engineering ◽

10.26634/jce.6.1.3746 ◽

2016 ◽

Vol 6 (1) ◽

pp. 11

Author(s):

KUMAR MANISH ◽

RAM SHRI ◽

◽

Keyword(s):

Wastewater Treatment ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Horizontal Flow ◽

Design Consideration ◽

Water And Wastewater Treatment ◽

Water And Wastewater

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Chemical Water and Wastewater Treatment VIII

Water Intelligence Online ◽

10.2166/9781780402840 ◽

2015 ◽

Vol 4 (0) ◽

pp. 9781780402840-9781780402840

Author(s):

H. Hahn ◽

E. Hoffman ◽

H. Odegaard

Keyword(s):

Wastewater Treatment ◽

Water And Wastewater Treatment ◽

Water And Wastewater ◽

Chemical Water

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Water and Wastewater Treatment for a Small Island Resort

Water Science & Technology ◽

10.2166/wst.1989.0048 ◽

1989 ◽

Vol 21 (2) ◽

pp. 189-193 ◽

Cited By ~ 1

Author(s):

B. Rigden

Keyword(s):

Wastewater Treatment ◽

Reverse Osmosis ◽

Small Island ◽

Rotating Biological Contactor ◽

Water And Wastewater Treatment ◽

Water And Wastewater ◽

Operational Data ◽

Reverse Osmosis Desalination

The design of a reverse osmosis desalination unit and a rotating biological contactor for water and wastewater treatment for a small island resort is described. Some operational data are presented and recommendations for design flows and loadings are made.

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