www.howden.com HOWDEN WATER TECHNOLOGY TURBO COMPRESSOR SYSTEMS FOR THE WASTE WATER INDUSTRY

1 A NEW BENCHMARK FOR ENERGY EFFICIENCY AND CONTROL PART OF THE HOWDEN GROUP, HOWDEN WATER TECHNOLOGY IS A CENTRE OF EXCELLENCE SUPPLYING HIGH EFFICIENCY TURBO COMPRESSOR SYSTEMS DEVELOPED TO MEET THE SPECIFIC NEEDS OF THE WASTE WATER INDUSTRY. HOWDEN WATER TECHNOLOGY SPECIALISTS IN PROVIDING AIR SUPPLY SYSTEMS FOR THE WATER TREATMENT INDUSTRY

WORLD CLASS APPLICATION ENGINEERING Howden Water Technology (HWT) is Howden's centre of excellence for turbo compressors and associated equipment for the waste water industry. Working on every continent, and with companies in 16 countries, Howden has made an enormous contribution to environmental improvements within vital industries such as power generation and petrochemical refining. With over a thousand installations worldwide, Howden turbo compressors are the proven, reliable choice for optimal performance. HWT is an invaluable source of application expertise as well as a supplier of complete,...

THE POWER BEHIND THE PROCESS OVER THE LIFE OF THE PLANT, HOWDEN TURBO COMPRESSORS ARE BY FAR THE MOST COST EFFECTIVE TECHNOLOGY AVAILABLE. THEIR CAPITAL COST WILL QUICKLY BE OFFSET BY LOWER ENERGY EXPENDITURE, TYPICALLY AS EARLY AS THE FIRST 12 TO 36 MONTHS OF OPERATION, LEAVING DECADES FOR THE SAVINGS TO GROW. Howden turbo compressor technology has an installed base numbering over one thousand units worldwide. These machines typically run for decades without any intervention except minimal planned maintenance. Their robust success is a testimony to the quality of their engineering, and their...

4 Blow off valve TURBO COMPRESSOR SYSTEM WITH ANCILLARY EQUIPMENT Cone diffuser-silenced Local control panel Motor Inlet silencer/filter Lube oil system SG60 SG65 SG70 SG80 SG92 SG105

RESPONSIVE INTEGRATED TECHNOLOGY DESIGNING AND SPECIFYING A MODERN, ENERGY-EFFICIENT AERATION SYSTEM IS A COMPLEX TASK, DEMANDING DETAILED KNOWLEDGE OF THE COMPRESSION PROCESS AS WELL AS THE OPERATION AND CONTROL OF THE AIR DISTRIBUTION SYSTEM, AND A THOROUGH UNDERSTANDING OF THE ACTIVE SLUDGE WATER TREATMENT PROCESS. PROVEN EFFICIENCY Howden turbo compressors high efficiency systems have been thoroughly researched and tested to provide flexibility and control even when plant conditions require greatly reduced capacity Our figures relate directly to the working efficiency of our turbo compressors...

HOWDEN WATER COMPLETE, INTEGRATED PREDICTING REAL PERFORMANCE The understanding that no two plants will ever operate and add ambient conditions like relative humidity in exactly the same conditions, and our certainty that and temperature, and variables like energy availability we can deliver efficiencies and energy savings, led us and cost, using figures supplied by the customer. to the development our unique modelling software. .„ , . Allowance can be made for energy price rises This compares different types of air supply technology and maintenance over a 20-year operating period. within the...

EFFECTIVE CONTROL HOWDEN WATER TECHNOLOGY'S STRENGTH LIES IN OUR COMPREHENSIVE UNDERSTANDING OF THE APPLICATION. WE BRING TOGETHER EXPERTISE IN COMPRESSOR TECHNOLOGY, DISTRIBUTED CONTROL TECHNOLOGY AND THE DOWNSTREAM AERATION PROCESS FOR WASTE WATER TREATMENT TO OFFER OUR CLIENTS THE VERY BEST TECHNICAL SUPPORT. Today, single stage geared turbo compressors are the most efficient way to aerate treatment plants. The technology has been brought to an extremely advanced level, and the focus is now on highly efficient controls and downstream solutions that will make the overall air supply system of...

HWT's BioActive Response System combines the energy efficient AIM system with a downstream air distribution system in which four control loops interact in real time to produce the minimum air flow required to efficiently treat the water in the Aeration Tanks. By constantly maintaining the lowest possible Main Header air pressure, BARS prevents unnecessary energy consumption and reduces running costs. The first control loop sets the dissolved oxygen level set-point based on readings of the ammonium and nitrate levels in the water. The second loop uses the dissolved oxygen level deviation from...

FULL LIFETIME SUPPORT EVERY TURBO COMPRESSOR WE SUPPLY, AND ALL OF ITS ASSOCIATED CONTROLAND SOFTWARE SYSTEMS, IS BACKED BY AN UNEQUIVOCAL COMMITMENT TO LIFETIME SUPPORT HOWDEN'S GLOBAL NETWORK OF QUALIFIED SPECIALIST ENGINEERS MEANS THAT WE CAN OFFER A FAST LOCAL RESPONSE VIRTUALLY ANYWHERE IN THE WORLD WHEN REQUIRED. We maintain a full spares programme based on meticulous documentation of the equipment we originally installed, so that every part we supply is manufactured to specification. More importantly our records are a valuable resource that allows us to provide reliable advice rapidly...

www.howden.com " Mixed Sources Product group from well-managed forests, and other contralied» O 1996 Forest Stewardship Cooncil Howden, founded in 1854, is the world's leading supplier of fans compressors and rotary regenerative heat exchangers for a large range of industrial applications. Whether pre-engineered or custom built for a specific application, our products are known throughout the world for their high levels of performance, reliability and innovation. The combination of our product knowledge with our extensive applications experience, gained by our engineers on sites throughout the...