28 Water / Wastewater
Pressure Controller Helps Bournemouth Water Reduce Leakage and Bursts
The Pegasus+ pressure control system from multi-utility monitoring and telemetry specialist HWM has helped Bournemouth Water (BW) reduce leakage by 1 Ml/d and achieve short-duration burst reductions of 54 per cent. The pressure controller is responding directly to data recorded by HWM loggers at critical points (CPs) in the network and adjusting the delivery pressure. Phase one of the project has been completed, resulting in 17 new Pegasus+ installations. Phase two, currently undergoing
commissioning and delivering predicted savings, will see another 62 units installed. There were several reasons why BW chose HWM as the supplier for the project: CP modulation – Pegasus+’s ability to control the delivery pressure of the pressure management valve, based upon always achieving 20m at the CP within the district metered area (DMA). Time control – Tables built within the controller allow for specifi c time intervals during a day, week, month or year to control pressure at specifi c settings. For example, at peak demand, opening the valve slightly more than during low demand, when the valve could be throttled down. Supplier confi dence – BW has a long history of working with HWM and was reassured by the available support and product quality. BW knows that, if problems arise, HWM will be on hand to provide the necessary support to resolve the issue. Value for money – HWM supplies a product capable of achieving the required level of control to help with good pressure management. Pegasus+ offers the same level of advanced technology as more expensive rivals. Having traditionally adopted pressure management measures only in areas with existing high pressure, BW decided to use pressure management to reduce leakage across parts of its distribution network. BW’s models showed that extensive pressure management could take place at DMA level and predicted potential savings and benefi ts that included: leakage reduction; overall volume savings leading to reduced production costs; reduced short-duration bursts; and extended asset life for the ageing network.
For More Info, email: email:
For More Info, email: email:
40981pr@reply-direct.com
Accurate, Automatic and Direct BOD Measurement
The Lovibond sensor system BD 600, from Tintometer, is a 6 sample system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen
consumption while maintaining a constant volume. Thanks to the modern integral pressure sensors, it is no longer necessary to use mercury for pressure measurements.
The BOD values are stored automatically in the sensor memory in regulary intervals and can be called up with remote control on the large-format display at any time without the need for time-consuming conversion using factors. This means that test series that end on a Sunday can be evaluated during the following week without any problem. Measurement series can be stored on USB stick/SD card or transfered via USB cable to evaluate the datas on a computer.
For More Info, email: email:
For More Info, email: email:
34705pr@reply-direct.com A New Radar Level
Sensor for Water-supply and Sewage Systems
The VEGAPULS WL S 61 radar sensor from Vega is ideal for all simple applications in the water-supply and sewage sectors. Featuring a wide range of mounting options, it is an especially cost-effective radar solution, because it can be readily integrated into existing infrastructures.
Just as with the VEGAPULS WL 61, which has been available for several years with a large installed base, the new VEGAPULS WL S 61 offers a design optimised for use in the water-supply and sewage sectors. Radar technology
offers numerous advantages compared with ultrasonic sensors, which used to be standard in this sector; radar is independent of weather infl uences, strong sun, wind, fog or rain. In addition, no compensation is needed for variations in the signal transmission time due to air temperature fl uctuations. With an accuracy of +/- 5 mm, the VEGAPULS WL S 61 covers a wide range of applications.
This sensor is particularly suitable for level and fl ow measurement in water treatment plants. Its excellent focusing enables its use in pumping stations and rainwater overfl ow basins, for fl ow measurement in open channels, and for level monitoring.
The sensor’s robust housing is wear and maintenance-free, and its high degree of protection,
IP 68 (2 bar), also makes it suitable for applications where the sensor may be temporarily submerged. The unit complies with the latest LPR standard (Level Probing Radar), and is approved for open-air use without restrictions or special attachments.
In its development of this new sensor for simple measurement tasks, VEGA drew on its many years of experience. Today, almost 40,000 VEGAPULS WL 61 sensors are being successfully used worldwide in the water-supply sector.
An entirely new feature is Bluetooth wireless operation from a smartphone or tablet (and/or a PC with PACTware) when combined with a Bluetooth USB adapter; this makes commissioning and diagnosis even simpler. Corresponding display and signal processing units enable the display of measurements and provide the relay outputs needed, for example, to control a pump.
Mobile, Stand-alone Solution for Flow Rate Monitoring in Sewer Manholes
For More Info, email: email:
For More Info, email: email:
The mobile wastewater fl ow monitoring solution by SOMMER Messtechnik combines the highly innovative SQ Flow Meter with the smart data logger MRL-7 including data transmission and all provisions for a convenient installation in the sewer manhole. It is a self-supporting, independent and compact system dedicated for remote monitoring sites without permanent power supply or landline wire connection. The fl ow meter as well as the two removable boxes for battery pack
and data logger/modem are easy to access, easy to exchange and easy to store in the manhole. For this specifi c application all components are of course resistant to aggressive environments and water-proof (IP 68).
Innovations in Water Monitoring Reliable Water Level Loggers
The durable, corrosion-resistant Rugged TROLL® 100 and 200 Data Loggers are designed for long- and short-term groundwater and surface water monitoring.
• Measure and record changes in water level, pressure, and temperature
• Solid titanium construction outlasts coated data loggers • 2MB of memory and 10-year battery life reduces trips
to the field
For More Info, email: email:
IN-SITU.COM/AET 7519ad@reply-direct.com
AET Annual Buyers Guide 2017
www.envirotech-online.com For More Info, email:
Learn more at
in-situ.com/aet Be Reliable. | Be Effective. | Be In-Situ.
This mobile fl ow monitoring station is especially useful for temporary measurement campaigns, for sewer network capacity studies, hydraulic analysis and evaluations as well as for temporary comparisons of existing fl ow monitoring equipment. It is installed at key points of the sewer system or for example at the inlet of overfl ow basins in order to collect valuable data for a professional storm water management. Optionally the system can be upgraded with a camera for site visualisation respectively a visual documentation of the actual situation (emergency assessment) and a solar panel with solar charge controller to recharge the batteries.
This new system provides an unreached level of fl exibility together with equally high measurement standards for challenging monitoring tasks.
For More Info, email: email:
For More Info, email: email:
41556pr@reply-direct.com
Do you receive your own copy of International Environmental Technology? Request your copy today. IT’S FREE!
info@iet-pub.com 41749pr@reply-direct.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
