| Swine liquid manure, supplied by the Swine Research & Technology Center of the University of Alberta, Edmonton, Canada, was treated by physical/chemical methods. The treatment chain involved coagulation, flocculation and settling in a sludge blanket clarifier, and lastly, the filtration through patented Martin filters. Alum was used as a coagulant. The effectiveness of the treatment was determined by the reduction in total suspended solids (TSS), 5-day biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total phosphorus (TP) and total Kjeldahl nitrogen (TKN) etc. In the laboratory, jar tests were performed for the coagulation/flocculation and settlement, and the filtration through polycarbonate membrane filters. The treatment was effective in removing the TSS and TP. In the laboratory, a low-pressure collimated beam of Ultraviolet (UV) irradiations was tested as a microbial inactivator using the laboratory-treated samples of swine manure. Total coliform (TC) and fecal coliform (FC) indicators were used for microbial analysis. |
