Biofiltration of air containing styrene vapor was investigated using a three-stage bench scale biofilter. The biofilter was packed with yard waste compost using hard plastics as a bulking agent in a 75:25 v/v mix of plastics: compost. The feed concentration was made by bubbling air through a styrene stock solution. The system was inoculated with thickened activated sludge and the effects of loa...

Introduction: Volatile organic compounds are the most common pollutants in the air, and among them, toluene is the most common form, which is toxic resulting in liver and kidneys damages. Regarding the fact that this compound is widely used in various chemical industries, implementing an efficient method for controlling its concentration is of great importance. The comparative survey of the cap...

The study of microorganisms in aquaponics is an important topic which requires more research before exploiting the full potential beneficial microorganisms. In this experiment, we focused on evolution over time bacterial communities four compartments aquaponic system i.e., sump, biofilter, lettuce rhizoplane and root. We studied these course a growth cycle via regular sampling sequencing 16S rR...

Installed biofilter at a swine facility. Practices to control particulate and dust emissions associated with livestock production can be applied to animal housing and manure storage areas. This document provides an overview of various practices for each situation, highlights their advantages and disadvantages, and allows producers to make informed choices after evaluating production and economi...

Nitrite produced during ammonia oxidation can inhibit the activity of microorganisms. To provide guidance for optimization and design a biofilter, pilot-scale biofilter was established to investigate influence nitrite on organic matter manganese removal kinetics. The results demonstrated that CODMn, ammonia, in effluent were 2.77, 0.034, 0.026 mg/L steady phase, respectively. Organic affected b...

[SARAH A. PENDERGRASS, SHEFALI S. VERMA, EMILY R. HOLZINGER, CARRIE B. MOORE, JOHN WALLACE, SCOTT M. DUDEK, WAYNE HUGGINS, TERRIE KITCHNER, CAROL WAUDBY, RICHARD BERG, CATHERINE A. MCCARTY, and MARYLYN D. RITCHIE (2012) NEXT-GENERATION ANALYSIS OF CATARACTS: DETERMINING KNOWLEDGE DRIVEN GENE-GENE INTERACTIONS USING BIOFILTER, AND GENEENVIRONMENT INTERACTIONS USING THE PHENX TOOLKIT. Biocomputin...

The efficiency of a biofilter filled with pine bark charge was modelled under conditions of interchanging pH. Hydrogen ion concentration is significance for the growth of microorganisms, therefore biological metabolism is strongly dependent on pH. Many microorganisms will only grow within a particular pH range. Since pH has a strong influence on kinetic parameters and governs the process into t...

filtration may be costly, biofiltration can effectively and inexpensively reduce exhaust odors. Biofiltration costs for a 700-head farrow-to-wean swine facility are estimated at $0.25 per piglet, amortized over a 3-year life of the biofilter. Reductions of ammonia emission at that operation are approximately 74 percent, whereas reductions in both hydrogen sulfide and odor emissions are about 90...

The effectiveness of the freshwater bivalve Batissa violacea depuration was tested in closed and open water circulatory system over a 48 h period. included sand biofilter. Microbial levels were assessed every 4 using Total Aerobic Plate Count (TPC) for heterotrophs Most Probable Number (MPN) coliforms. TPC coliform loads tissue reduced rapidly to low undetectable while showed slower reduction. ...