Abstract
Sludge stage and volume were monitored in two lagoons (OK1 and OK2) treating manure from swine breeding farms for a period of 9 years. Solids management differed between the two lagoons. Sludge was left relatively undisturbed in lagoon OK1, whereas solids were removed with each irrigation in lagoon OK2. When left undisturbed, sludge accumulated in a pattern consistent with the complex accumulation model proposed by earlier researchers. Sludge accumulated faster when solids were removed during irrigation compared to the lagoon in which solids were left undisturbed. Accumulation in both disturbed and undisturbed lagoons occurred at a rate less than current ASABE and NRCS standards. Onset of rapid accumulation appears to be related to volumetric organic loading rate rather than separation distance between top of the sludge and the liquid surface. Critical organic loading rates contained in the current standards appear to be adequate to determine the onset of rapid sludge accumulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
