Removing large debris and suspended solids.
7. Introduction to sanitation – systems of sewerage (separate, combined) 8. Quantity of sewage – dry weather flow, storm water flow 9. Sewer materials, joints, and appurtenances 10. Sewer appurtenances – manholes, inlets, flushing tanks 11. Sewage characteristics – BOD, COD, sampling 12. Sewage treatment – primary, secondary (trickling filters, activated sludge), tertiary 13. Disposal of sewage – land disposal, dilution, self-purification of rivers 14. Solid waste management – collection, disposal (landfill, composting)
Copy-paste this into Google/your library portal: "Water Supply and Sanitary Engineering" "S. C. Rangwala" filetype:pdf – then limit to sites like .edu , charotar.org , google books , or archive.org .