Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

A new swine wastewater treatment system is demonstrated and compared with current technologies. Comparisons include solid-liquid separation, sedimentation, aeration of wastewater, bio-filter pond and microorganism treatment. This new treatment technology can comprehensively utilize swine wastewater while meeting discharge standard through solid-liquid separation, acidification and high efficient bio-filter, bio-oxidation pond. Application of the new treatment system in a piggery demonstrated a bio-filter and the total COD removal rates of the system were 93%`97%, respectively. Therefore, the new system combines a single treatment process into a comprehensive treatment system that may have considerable economic, social and ecological benefits.