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The fourth edition of Activated Sludge and Nutrient Removal, MOP OM-9 reflects industry best practices and the latest advances. It is the primary reference for the operation of the activated sludge process. Expanded content includes an updated process control section with step-by-step examples for calculations, a new laboratory chapter with detailed directions for common process control tests, and an introduction to using modeling for process control. Operators are guided through selecting an appropriate sludge age, calculating wasting rates, optimizing return-activated sludge flow, managing clarifier blankets, and setting DO and ORP set points. Advanced concepts in nutrient removal and biological process modeling are also addressed. Practice questions have been added to the end of each chapter to help the reader enhance their understanding of the material and retain information vital to solving performance problems and improving operations. Features & Benefits - Practice questions at the end of each chapter - Covers advanced concepts such as nutrient removal and biological process models - Updated process control section with step-by-step examples for calculations
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Free 30-day returns on UK orders. If a book arrives damaged, faulty or not as described, we'll refund or replace it free of charge — you usually won't need to send it back. Changed your mind? Contact us within 30 days of delivery. International orders also have 30 days: damaged or faulty books are refunded or replaced free; if you change your mind, the return postage is yours. Read our refund policy.
In-stock orders are dispatched within 1 working day (Monday–Friday), and UK delivery usually takes 2–4 working days after dispatch. For Express International delivery to 21 more countries, see our Shipping Policy.
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Standard UK delivery is £2.99, and free on orders over £35. We also offer Express International delivery to 21 more countries — see our Shipping Policy for rates.
Yes. All of our books are brand new and unread, from publishers and UK book wholesalers.