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 TotalThe Importance of pH in the Direct UV Photolysis of a Group of Pharmaceutical Compounds (16 words) $11.50Remove“Existing Water Quality Standards and Wet Weather Compliance are Mutually Exclusive. Why Does This Have to be the Case?” (528 words) $11.50RemoveChemically Enhanced Primary Treatment -- What Every Operator Needs to Know (950 words) $5.50RemoveIndustrial Wastewater Management, Treatment, and Disposal (formerly Pretreatment of Industrial Wastes) Chapter 7: Management Strategies for Pollution Prevention and Waste Minimization (10,205 words) $14.00RemoveNet total: $42.50VAT: $0.00Gross total: $42.50 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.