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Masthead

UNITING THE VIBRANT WORLD OF WATER - TO PROVIDE A PROACTIVE PLATFORM FOR THE WATER INDUSTRY TO CONVERGE AND WORK TOGETHER IN ACHIEVING SOLUTIONS TO GLOBAL WATER PROBLEMS.

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8 Water Today February 2016

C O N T E N T S

Membrane Bioreactors In Industries: An Approach Towards Environmental Reclamation and Energy Production.................26Membrane based processes are rapidly finding its verve in modern water industry as it is highly efficient, easy to

operate, avoids chemicals and other inputs, economical and requires limited space.

By Dr. R. Ravikumar & R. Saranya

General Aspects of Membrane Filtration..............34

Proper pre-treatment of water is required to be carried for better longevity of the membrane so that chemical cleanings

are to be minimised as the pores are being affected due to prolonged cleanings.

By Dr V.K.Seth

New Trends in Membrane Technology: CSIR-CGCRI Initiative

on Ceramic Membranes......42This article discusses detailed initiatives by the CSIR-CGCRI

on Ceramic Membranes. Read onBy Swachchha Majumdar, Sourja Ghosh, Ganesh Chandra Sahoo,

Subhendu Sarkar & Sandeep Sarkar

New Trends in Membranes Material...............58The selection of suitable material and preparation technique depends on the applications in which the membrane is to be used. Read on…By Anil Baghel

Ceramic Membrane Technology..64Membrane modules provide the inherent technical advantages of ceramic membranes in a configuration that provides for substantially reduced costBy Umesh Patel

Decentralized MBR for Reuse Applications.......66Decentralized wastewater for water reuse is a highly effective solution at alleviating stress on fresh water supplies. Read on… By Mike Snodgrass

10 Water Today February 2016

Masthead ....................................8

Water Wire.................................14

Launch Pad................................18

Event Zone.................................20

Product Zone.............................24

Editorial Calendar ....................107

Subscription Form....................108

Classifieds...............................109

Ad. Index..................................111

Editor’s Note.............................112

RE

GU

LA

RS

Membrane Technology for High TDS & High COD

Effluents without Pre-Treatment.....76

By Dr. Harshvardhan Modak

Bio Fouling Cause Indication & Mitigation.......84

By Dinkar Saxena

Smart Air MBR: An Automatic Control System

to Reduce Energy Consumption of MBR...88

By Javier Romero Sanz & Dharmendra Raval

Process Simplification Through the Use of.......92By Robert Y. Ning

C O N T E N T S

Innovative Membrane System....98By i.A. Nadja Pappenberger & Natcha Kosolkamolmas

Innovative Feed Spacer Technology Lead to Enhanced RO Element Performance..102By Stefan Tielen & Carsten Schellenberg

Membrane Technology: It’s Complex Science!......72

The article discusses the complex science of Membrane Technology in the current scenario. Read on…

By Daniel L. Theobald

12 Water Today February 2016

Membrane Technology: It’s Complex Science!

The article discusses the complex science of Membrane Technology in the current scenario. Read on…

By Daniel L. Theobald

In this series of Back to Fundamentals

on water and wastewater, the article discusses

the complex science of Membrane

Technology in the current scenario.

This is another in a series of educational articles on water and wastewater, discussing Today’s Complex Science of Membrane Technology. This generic presentation utilizes my extended number of years of experience working in Membrane

Technology:

Presentation Details:

• Overview

• Uses and Applications

• Conclusion

Overview:

Membrane filtration technologies are available by offering unique advantages and addressing filtration and separation issues in a variety of applications worldwide.

Uses and Applications:

Membrane Technologies

Membrane Technologies have been designed and perfected to handle virtually any physical aspect of any process fluid with an optimal solution.

In Food & Beverage Industry, process water requires clean incoming process water critical to safety and efficacy in the food and beverage industry. With so many solutions, membrane technologies offer a variety of solutions for purifying process water.

Apply Membrane Technology to reduce costs, increase efficiency, minimize water footprint, and ensure a safe, reliable supply of water.

Membrane systems are specifically available to handle tough environments, reliably producing clean effluent at minimal cost.

72 Water Today l February 2016

Reusing water in food-processing operations is challenging, but certainly surmountable with the right technology. Even difficult-to-handle wastewaters can be treated using membrane technology, often producing water that is clean enough to reuse within the plant. Membrane systems reliably clean water from spent clean-in-place streams allowing it to be reused within the facility.

In the Metal Finishing industry, large manufacturing plants often include metal forming and finishing operations. Great quantities of oily wastewaters can be generated from such operations in the cleaning and degreasing of fabricated parts. These are tough challenges that require unique solutions. Robust tubular membranes are available to handle high solids with minimal clogging and low energy. It is now widely used in industries worldwide to produce clean effluent and reduce expenses when dealing with oily wastewater treatment and water reuse.

Without the right technology employed in Metal Finishing industry, the oils from spent metalworking coolants and lubricants are expensive to remove chemically. That’s why membrane technology produces water that consistently meets discharge limits and even enables oils to be reused, a clear financial benefit and environmental advantage.

If oily wastewater is impeding on efficiency, tubular membranes is capable of handling extremely high-suspended solids.

Tubular ultrafiltration membranes provide a resourceful technique for treating industrial wastewater contaminated with heavy oil or grease, such as the kind found in metalworking industries. Machining processes produce large volumes of sludge containing heavy metals and without treatment must be hauled away.

Membrane technologies can be used to remove these impurities, decreasing contaminants in the discharge stream, and even making it pure enough for discharge or recycling back into the plant.

Power Plants rely on ultrapure water to reduce boiler downtime aided by systems to produce high-purity water in power plants around the world. Specialized systems provide important advantages, including a smaller footprint for power plants with limited ability for expansion, highly automated operations requiring minimal operator attention, a reduction of waste and disposal fees, and less need to purchase, store, and handle costly chemicals.

Boiler feed water has improved in Power Plants with precise technology in ultra-filtration systems and RO elements. It’s the most advanced solution for purifying boiler makeup water, and lowers expenses in the long run.

Water from Oil &Gas Processes requires thorough treatment in order to be safely discharged. Membrane Technology is effective in treating wastewaters from oil production and refining processes.Water is a critical component in oil and gas processing, and trace contaminants in the water supply can adversely impact vital processes. Robust membranes systems and solutions are an ideal component in produced water treatment, and provide a low cost, efficient method of ensuring safe, reliable water.

Approximately ten times more water than oil is generated from many wells, making the separation, treatment, and disposal of produced water one of the most costly and environmentally challenging dilemmas facing the oil and gas industry. Membrane technology offers effective solutions.

Paper Mills generate wastewater that contains starch, clay, wood fibers, and cellulose. Membrane wastewater treatment systems and Membrane water reuse systems can meet these very challenges with cleaner solutions that actually boost overall efficiency and output.

Supporting Mining Operations with fresh water is critical to their success. While the majority of water at mining sites is used in grinding and separating minerals, it may also be used to support downstream processing, product conveyance, and onsite mining personnel. Mining water treatment and reuse of water also plays a critical role in keeping costs in check.

Regardless of the end use, Membrane Systems turn both seawater and brackish water into fresh usable water.

Semiconductor Manufacturers require large volumes of ultrapure water to rinse impurities from wafer surfaces which are a considerable business expense when the right equipment is not employed. Ultrafiltration membranes and reverse osmosis elements are an ideal combination for producing high-quality, low-cost, reliable water needed to make today’s extremely compact semiconductor chips. These membranes are also used for the treatment and recycling of wastewater from wafer washing and mechanical grinding operations.

Water Today l February 2016 73

The Chemical Industry is faced with the continual challenge of meeting strict discharge limits while keeping overall operating costs down. The variation of waste from plant to plant adds to the difficulty of implementing sound chemical water treatment and reuse strategies.

Membrane Technology can help manage water requirements, and reduce water footprint.

Conclusion:

Some advantages of Membrane Technology discussed in this article include better removal of contaminants, high efficiency, smaller footprint and Long filtration media life and more.

There are some explanations of the complex science behind membrane technology, So hopefully you are ready to Begin now to: Advance the use of Membrane Technology.

Daniel L. Theobald is “Wastewater Dan,” proprietor of Environmental Services. He is a professional wastewater and safety consultant/trainer with more than 24 years

of hands-on industry experience operating many variants of wastewater treatment processing units and is eager to share with others his knowledge about water conservation. Wastewater Dan can be reached at [email protected] or www.Conserve-On-Water.com

About the Author

74 Water Today l February 2016