Shopping basket > Review order Currently in your basket Before proceeding to checkout you will need you to either login or create an account. Your items will remain in your basket. USDItem TotalCutting Chemicals, Costs, and Odors (2,281 words) $11.50RemoveEffect of Sludge Thermal Hydrolysis on The Formation of Dissolved Organic Nitrogen Recalcitrant to Anaerobic and/or Aerobic Treatment (19 words) $11.50RemoveThird Century of Biochemical Oxygen Demand 7 Biochemical Oxygen Demand Method and Practice (23,371 words) $17.00RemoveThe Energy Roadmap: A Water and Wastewater Utility Guide to More Sustainable Energy Management Chapter 3 - Organizational Culture (1,064 words) $15.00RemoveInnovative Strategies Position a Small City to Secure $0.5 B in Low-Interest Loans (14 words) $11.50RemoveNet total: $66.50VAT: $0.00Gross total: $66.50 Payment info When you click the checkout button, you will be redirected to a secure Paypal page where you can either pay using an existing Paypal account, or pay by card without a Paypal account. Continue shopping We access Visa, Mastercard, Maestro, American Express all through Paypal.