The Latest News & Information from Colour Technologies Australasia and The Novasys Group

GENERAL EDITION

Volume G5 Issue 1 - 27 March 2006

Table of Contents

1. Come and See Us at APPITA 2006!
2. How Sulphur Dioxide and pH are Linked in Wine
3. Keep Lakes, Ponds, Lagoons and Tanks Healthy by Effective Mixing - Without Paying a Penny for Energy!
4. Dyne Testing - How to.....
5. First Strathtox Demonstrations Completed
6. Fun Stuff........

Novasys are exhibiting on Stand 45 at APPITA 2006, to be held at the Carlton Crest Convention Centre, 65 Queens Road, Melbourne on the 3rd to 5th April 2006.

If you have Voith, Metso, Küsters, Mitsubishi, PMP, Janus or Optiload machines (or any other European machine!), come and talk with Bernd Cimander of Christian Maier GmbH about Maier’s superior rotary unions, and how they can improve the performance of your machine.

(Bernd is also available after the exhibition to visit your site for further discussions.)

We are also exhibiting Proceq’s Roll Hardness Testing instruments, and the colour and whiteness measurement systems of HunterLab.

Come and visit us (and be in the draw for some good prizes!)

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How Sulphur Dioxide and pH are Linked in Wines

Sulphur Dioxide in wines exists in two different forms; molecular SO2 and “bisulphite”. When Free SO2 is measured, both forms are measured, but only the molecular SO2 is effective as a bacterial preservative. In wines, only 1% to 7% of the Free SO2 is present as the molecular SO2.

If there is more acid present which is the same as having a low pH wine, then a higher percentage of the molecular SO2 is available. If there is less acid, or a higher pH wine, a much lower percentage of molecular SO2 is available. At a pH of 3.0 a little more than 6% of molecular SO2 is available, whereas at a pH of 4.0, only 0.64% of molecular SO2 is available.

For the full story, complete with tables and a formula for adding Potassium Metabisulphite to your wine, click here.

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Keep Lakes, Ponds, Lagoons and Tanks Healthy by Effective Mixing - Without Paying a Penny for Energy!

Low dissolved oxygen (DO) levels in bodies of water, whether they be lakes, reservoirs, ponds, activated sludge tanks or facultative lagoons, low DO levels spell trouble. So do high surface water temperatures.

Algal blooms, bad odours, bulking sludge, sludge accumulation and growth of anaerobic bacteria are results of amongst other things, inadequate mixing of the water.

A common method used to increase DO and provide mixing is to install aerators, but aerators, while maybe OK for small areas and volumes of water, are expensive to install and run. Furthermore the volumes and areas of water that are mixed are relatively small.

The “SolarBee” is a solar-powered circulator that mixes up to 40 Ha of area to depths from 1m to 30m.

For wastewater it reduces energy consumption, improves secondary treatment by BOD, TSS and Algae reduction and tertiary treatment, by reducing ammonia and phosphorous. It controls odour consistently, improves sludge digestion, eliminate or reduces the need for dredging, reduces short-circuiting and improves DO and pH levels.

In freshwater, blue-green algae (cyanobacteria) are controlled, aesthetics are improved and fish kills eliminated. Inorganic chemical releases from sediments are also controlled, reduces manganese, iron, hydrogen sulphide, phosphorous recycling and turnover problems. DO and pH levels are improved. Stratification can be reduced or eliminated if desired. Evaporation can be significantly reduced by mixing cold bottom water with warm surface layers.

Easy to install, 2 year warranty, brushless, low maintenance motor, 25 year lifetime and best of all, runs for 24 hours per day on no-cost, solar energy.

For full details and a no obligation quote, contact us.

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Dyne Testing - How to.....

UV Process Supply get many inquiries from their customers asking for advice on Dyne Testing.

To help clarify this crucial process, UV Process Supply has developed a How-To guide: “Proper Dyne Testing: How, Why, and When to Perform.”

This manual describes the different dyne testing methods and specifies which are best suited for different applications. There is a step-by-step explanation that details proper dyne testing procedure. As well, contact angle measurement, corona and other surface tension altering methods and other topics are also explored.

The release of this “How To” manual marks the 7th in the series of helpful manuals produced by UV Process Supply. Contact Novasys for your free copy of the “Proper Dyne Testing” manual.

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First Strathtox Demonstrations Completed

During February we welcomed Ken Diamond, Sales Director of Strathkelvin Instruments to our shores to conduct a series of demonstrations at Activated Sludge Treatments Plants in Victoria and NSW.

Results were very encouraging. Many plants were operating well, and others discovered that unexpected things were happening.

Many plants have requested follow up visits so that we conduct more tests.

Meanwhile, through APPITA, a Course entitled, “Troubleshooting Your Wastewater Treatment Plant” was recently presented in Melbourne by a world authority, Ray Kenny, a Canada based consultant. Again, participants found that respirometry was worthwhile seriously investigating as a means of reducing plant operational costs.

This means even more demonstrations will be required, using Ray’s troubleshooting methodologies.

Of particular interest was Ray’s contention that effective mixing of both tanks and lagoons is necessary to reduce or eliminate a host of problems associated with low DO and pH levels. It seems that Strathtox and SolarBee both have a place in WWTP’s as well as freshwater lakes and ponds.

For information about general applications of Strathtox or Pulp and Paper Industry specific issues, please contact us.

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Fun Stuff........

The Unnatural Enquirer – The things perspiring minds want to know!

http://www.trygve.com/enquirer.html

How optimistic are you?

http://www.rateyourself.com/poll.cfm/Poll_ID/1081/Subject_ID/3

Worthless facts about food…..

http://worthlessfacts.com/index.cfm?fuseaction=wf.dsp_facts&tierParentID=18

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