Handbook Biological Wastewater Treatment - Design of Activated Sludge Systems

On this website you will find a huge amount of high quality information on the theory, design and optimisation of biological wastewater treatment plants. You might find it amazing, but it is available to you at no cost at all. The info is taken from the "Handbook Biological Wastewater Treatment - Design and optimisation of activated sludge systems", published in September 2007. Note that the second edition will be published by IWA by the end of this year - see below.

Additionally you can find downloadable Excel based design tools on this site, that will help you to get quickly started with your own design project. Well, we suppose you might wonder by now:

• What kind of information is available on the website ?
• What's this handbook all about ?
• Who are the guys behind the website anyway ?
• What's in it for us ? Is there a catch ?

Latest News

• August 2011: click here for a link to the official IWA page on the Handbook of Biological Wastewater Treatment - Second Edition. the publication date of the second edition is now been confirmed by IWA publishing as March 2012. Now the long awaited pre-ordering form is available (click here to download it) which entitles you to a 25% discount on the sales price. Go the webpage dedicated to the Second Edition for more info ! For as long as the first edition of the handbook remains in stock.....the last 100 copies of the existing (hardcover) edition are available for only € 66,-! Click here for the webshop
• Februari 2011: On request of our readers, in addition to our regular training course scheme, we are offering two E-learning packages, to allow for self-study at significant reduced costs. Packages include course handouts, excercises, test questions, design sheets and of course a copy of the Handbook.
  The packages are priced at €699 each, or €1049 for the two packages combined. Click here for more info on E-Learning Package A and here for more info on E-Learning Package B
• Januari 2011: We are pleased to announce that IWA publishing - UK has decided to acquire the rights to and publish the second edition of the Handbook Biological Wastewater Treatment. The book is expected to be launched the end of this year or early 2012. There will be a hardcover edition, priced provisionally at about £145.00 (€195) with 25% for IWA members and pre-ordering and maybe later a (paperback?) student edition. The handbook has been expanded from 530 to 822 pages. Click here for more information about the changes compared to the previous edition, here for the contents in brief and here for the table of contents.
• Januari 2011: An extensive 12 page symbol and parameter list is made available as an excel download to help you work with the model .
• December 2010: A Spanish version of the Handbook Biological Wastewater Treatment will be made available. Mr. Adrian Cobos of Tecnologia Efectiva has started on the translation of the Handbook into Spanish. It is expected that the handbook will be available end of 2012. More info will follow later.
• November 2010. Citra consultores organized a two day seminars on the 5 and 6th of November 2010, directly adjacent to the IWA AD conference in Guadalajara. The subjects where Membrane Bio Reactors and on the experiences with anaerobic treatment (both industrial and municipal).
• October 2010: Mr Van der Lubbe has presented at the IWA AD conference (Guadalajara - Mexico) on his experiences with design and performance of large full scale UASB based sewage treatment plants from Brazil, India, Egypt and the UAE.
• November 30, 2007: Read the (very positive) book review in H2O, a reputable Dutch magazine for the watersector. Click here for the original article (in Dutch) and here for an English translation
• August 28, 2007: Two additional spreadsheet tools available for download.
• August 21, 2007: First spreadsheet design tool available for download
• More news....