Now showing items 1-10 of 218

    • Part 5: Biofilter media management considerations 

      Oliver, Jason; Gooch, Curt (2016-09)
      Biofilter performance is directly tied to media management that in turn governs both air flow and microbial activity. At start-up, biofilter media must be managed for the establishment of a robust, targeted contaminant-degrading ...
    • Part 4: Biofilter design information 

      Oliver, Jason; Gooch, Curt (2016-09)
      Design flexibility and the capability to operate across a range of conditions makes biofilters suitable for point-source gaseous emissions from dairies.
    • Part 3: Basics of biofiltration 

      Oliver, Jason; Gooch, Curt (2016-09)
      Biofiltration is a low-cost, robust mitigation technology applicable to various agricultural emissions. Biofilters are essentially a pile of wood chips, mulch, compost or other porous, typically organic, media and its ...
    • Part 2: Applicability of biofilters to dairy point-source emissions 

      Oliver, Jason; Gooch, Curt (2016-09)
      Point-source gaseous emissions from dairies contain complex mixtures of contaminants in ranging concentrations emitted at various flow rates. While most air pollution control technologies have optimal application limits, ...
    • Part 1: Potential point-source gaseous emissions from dairies 

      Oliver, Jason; Gooch, Curt (2016-09)
      Various point sources of gaseous emissions may be associated with modern dairy production. Though most of the generated emissions are benign; the emissions from these point sources may contain odorous, hazardous and ...
    • Part 5: What is known about antibiotic residues in dairy manure? 

      Oliver, Jason; Gooch, Curt (2017)
      Antibiotics are chemicals that kill or impede bacterial cell growth. They are important medicines used by dairy farms to treat bovine bacterial infections, prevent infections, and to a declining degree to promote growth/milk ...
    • Part 4: Laboratory methods for analyzing antibiotic residues extracted from dairy manure 

      Oliver, Jason; Gooch, Curt (2017)
      Methods to analyze environmental samples for pharmaceuticals have advanced significantly since approaches were first developed in the 1980s. Today, liquid chromatography integrated with tandem mass spectrometry (LC-MS/MS), ...
    • Part 3: Laboratory methods for extracting antibiotic residues in dairy manure 

      Oliver, Jason; Gooch, Curt (2017)
      Antibiotic residues must first be extracted (or separated from manure), then purified, so that they can be accurately measured. Just as there is no standard approach to sample manure for antibiotic residues, there is also ...
    • Part 2: Sampling dairy manure for antibiotic detection 

      Oliver, Jason; Gooch, Curt (2017)
      While well-established standards for water and wastewater examination exist, standard for manure are lacking. In lieu of standards, and given the inherent heterogeneity of dairy manures, care must be taken to insure that ...
    • Part 1: Critically important antimicrobials labeled for dairy use 

      Oliver, Jason; Gooch, Curt (2017)
      Most antibiotics used by modern dairy farms are also important human medicines. As antibiotic resistance can spread through the environment, development of resistance at a dairy farm has the potential to reduce efficacy ...