Most industrial and manufacturing processes, whatever the industry sector, tend to use good quality or even purified water in one or more of their stages. Despite it being such a commonly used resource, there are a lot of misconceptions about how we reuse water which could have a major impact on how effective our processes are, both from a cost and environmental perspective. Read on to find out about the most common misconceptions surrounding the use and reuse of water in manufacturing processes, and what we can do about them.
When the British summer finally begins, it’s a relief for many to switch off the heating and power up the air conditioning units instead. But could switching the heating off and leaving it for a few months actually be costing you more money than you think? Most of us aren’t aware of the fact that switching our heating systems off completely could provide the perfect temperature and environment for all sorts of bacteria to spend their summer growing inside to cause all sorts of problems.
It’s not just Legionella or Pseudomonas bacteria that you have to worry about lurking in your water. Escherichia Coli or E.coli is another bacteria which just loves living in man-made water systems like hot tubs, spas and swimming pools. It will breed rapidly given the right conditions which is why regular water testing is important. Legionella bacteria does best in stored or stagnant water systems where the temperatures are warmer, but E.coli prefers hotter temperatures that are sustained over longer periods.
In the UK the Health and Safety Executives Approved Code of Practice ACOP L8 and Guidance document HSG274 Part 1 dealing with the control of Legionella bacteria and Legionnaires’ disease in cooling water systems describe issues which can influence the effectiveness of a water treatment programme developed to control legionella. These issues include the control of:
This article is about the control of legionella in hot and cold water systems, an essential task if you are to protect the safety and health of people who may use such systems or come in to contact with them.
It’s often easy to take the performance of engineered-water systems for granted. Ensuring that they perform as they should can be helped significantly by following the correct pre-commission cleaning and flushing procedures of the pipework systems at the pre-handover stage. There is a lot to think about when you’re carrying out a pre-commission clean or on-line flush of a water system, and irrespective of whether the responsibility for doing this is with the client, main contractor or engineering sub-contractor, there are a few key steps that you need to follow to ensure success.
If you work in an organisation which has any type of water system, including hot and cold water systems, showers, spa pools, air conditioning units or cooling towers, then there should be someone in your company who is designated as the responsible person for legionella control. This role can be an onerous one depending on the size and complexity of the buildings and water systems at your place of work. The role typically involves assessing the risks and putting in to place procedures and systems for the control of Legionella bacteria, the microorganism which can cause Legionnaires’ disease, a potentially fatal lung infection.
Most organisations are keen to take steps to control the growth of micro-organisms which can flourish inside closed circuit water systems, including closed heating and cooling systems. Controlling the growth of bacteria in such closed circuit systems can also help to prevent the build-up of biofilm on the inside of pipe surfaces. It will also help limit the bacterial breakdown of any corrosion inhibitor chemicals that have been added to the water in the system.
Water Treatment Services
Water Treatment Services is a leading independent UK water treatment and environmental services company providing expert advice and engineering support solutions across our specialist disciplines of water, wastewater, air, energy and legionella.
Our main offices are in Manchester, London and Glasgow, and these are further supported by offices in Birmingham, Bristol and Leeds and regional teams of engineers, in-field service specialists and technical experts who deliver solutions to meet the highest standards of performance.
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