Water News
Director of IVL Flow Control hits back at scaremongering criticism
Craig Stanners, Director of IVL Flow Control has hit back at criticism that he was scaremongering when stating that the UK’s water networks are ‘vulnerable to terrorist attack'.
Stanners acknowledges that there is a business element to his comments:
“The serious question I was asking came in to the spotlight the very next day when terrorists tried to contaminate the main water supply in Pristina, Kosovo”, he said.
“Despite some negativity, it is heartening to hear many in the industry recognise that there should be some reviews and that as much as any of us don’t want to think about or talk about terrorism, it is, unfortunately, part of the world we now live in”.
He added: Security of supply is a major issue for water companies all over the world who spend millions on leakage and burst reduction. Here in the UK, Pressure Reducing Valves (PRVs) are the preferred option of the industry. What we need to consider though is a more intelligent type of valve that checks to see if water is available upstream of its location before supplying the required downstream demand, which is why we designed the Demand Control Valve”.
He continued: “Are you really happy with water quality readings currently taken with a 3 to 5 day cultured period for biological results, as so many are? Shouldn’t it be taken at key locations throughout a trunk main
system, down to DMA levels so that a problem can be localised and isolated immediately? Or would you rather still wait and then send out a team of people to deal with a problem, by which time it could be too late?
“On top of the normal water quality parameters such as turbidity we have added to our system a Tryptophan like fluorescence (TLF) monitor, that monitors the optical space based on its fluorescent properties. Within this optical space there is a specific area that highlights the presence of free amino acids, which are present within any organic matter or bacteria that is present within the water. This is then relayed back to either a RCC (regional control room) or directly to the strategic control nodes or our intelligent demand control valves within the network that can then autonomously close or restrict the flow preventing the contamination of the rest of the distribution network. Combining this with an autonomous network control theory, other control nodes/valves will then autonomously open and supply flow from other parts of the network ensuring proper security of supply”.
Black & Veatch win helps lead the way
in pesticide removal Affinity Water process selection contract will help identify best route to address metaldehyde
Affinity Water has awarded Black & Veatch a contract to help manage water quality at one of Affinity.
Water’s water treatment works (WTW) in Hertfordshire, England. The project will investigate different technologies to manage levels of pesticides, particularly metaldehyde from agricultural practices in raw water. This will be achieved by creating a new treatment stream at Affinity Water Treatment Works.
“Black & Veatch is recognised for its water treatment capability not only in UK, but globally. This means we are very well placed to help Affinity Water become among the first UK water companies to address
levels of metaldehyde pesticides,” said Scott Aitken, Managing Director, Black & Veatch, Water, Europe.
The key objective of the project is to gather the data necessary to make a technology selection for an innovative treatment process. Conceptual and then detailed design will follow, resulting in a planning application for the new-build phase of the project.
Black & Veatch’s initial role will be a pilot and jar testing programme comparing two technologies effectiveness at removing metaldehyde from raw water. Once the trials are complete, this information will be used to assist Affinity Water in developing a treatment strategy for this site.
The work, awarded on an NEC Professional Services Contract, encompasses engineering and project management services. The initial phase of the contract will last approximately 30 weeks.
34 drain TRADER | September 2015 |
www.draintraderltd.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88
