Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — 04-Agric-B11, Principles of Waste Management. 3-hour duration, open-book exam (this paper is catalogued as "undated" in this collection). Answer Question 1 plus any three of Questions 2 to 5; all five questions are answered below as a complete study resource.
Reference texts: Tchobanoglous, Burton & Stensel, Metcalf & Eddy Wastewater Engineering: Treatment and Resource Recovery; MWPS-18, Livestock Waste Facilities Handbook (MidWest Plan Service); Rynk et al., On-Farm Composting Handbook (NRAES-54); Sommer & Christensen (eds.), Animal Manure Recycling: Treatment and Management.