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...

Users of motorized vehicles in the city Pontianak are growing rapidly. For some people who very busy washing motorbikes is a tiring thing and usually, take their to car wash. During this time, motorcycle providers directly dispose waste into environment, which causes pollution environmental damage. The technology used treatment system based on natural materials (biofilter). method activity an e...

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...

Recent studies on copy number variation (CNV) have suggested that an increasing burden of CNVs is associated with susceptibility or resistance to disease. A large number of genes or genomic loci contribute to complex diseases such as autism. Thus, total genomic copy number burden, as an accumulation of copy number change, is a meaningful measure of genomic instability to identify the associatio...

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...

The biological air treatment method is based on the biological destruction of organic compounds using certain cultures of microorganisms. This method is simple and may be applied in many branches of industry. The main element of biological air treatment devices is a filter charge. Tests were carried out using a new-generation laboratory air purifier with a plate structure. This purifier is call...

To date, biofilters have been used primarily to control dilute, usually odorous, off-gases with relatively low volatile organic compound (VOC) concentrations (<1 g m-3) and VOC loads (<50 g m-3 hr-1). Recently, however, U.S. industry has shown an interest in applying biofilters to higher concentrations of VOCs and hazardous air pollutants (HAPs). In this study, the behavior of biofilters under ...