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 TotalReducing Wastewater Treatment Operational Expenditure, Carbon and Sensor Drift through Digital Innovation (13 words) $11.50RemoveMoving and Removing Mountains of Grit at SFPUC's New 250 MGD Headworks (13 words) $11.50RemoveFrom theory to practice: Continuous flow aerobic granulation using external selectors in full-scale US facilities (16 words) $11.50RemoveRenewable Diesel: Unique Wastewater Treatment Challenges (7 words) $11.50RemoveAddressing Spokane's Wet Weather Challenges with Real-Time Controls (9 words) $11.50RemoveOperation of Nutrient Removal Facilities Contents (921 words) $0.00RemoveNet total: $57.50VAT: $0.00Gross total: $57.50 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.