Biofilter

(redirected from Bioscrubber)

biofilter

[′bī·ō‚fil·tər]
(engineering)
An emission control device that uses microorganisms to destroy volatile organic compounds and hazardous air pollutants.

Biofilter

 

apparatus for the biological treatment of sewage. It is a round or rectangular tank with a double bottom filled with a filtering material (boiler slag, granite chips, gravel, porous clay filler, and so on). The bottoms are at least 0.4 m apart. The filtering layer is 1.5–2 m high; the grainsize of the filtering layer is 30–50 mm, and of the lower underlying layer, 60–100 mm. When sewage passes through the filtering material, a biological film forms on its surface. The film consists of accumulations of bacteria and fungi that oxidize and mineralize the organic matter in the sewage. The oxidation capacity of a biofilter is determined experimentally.

References in periodicals archive ?
Invitation for Bid: Purchase of bioscrubber odor control system for lift station 86
The Tohopekaliga Water Authority (Authority) is soliciting sealed competitive bids from qualified Contractors/Suppliers to provide a bioscrubber odor control system (Bioscrubber) to be furnished to the Tohopekalgia Water Authority at Lift Station #86 (LS 86).
High treatment efficiency (up to 99%) of a bioscrubber is achieved by degrading organic compounds having a high water-solubility rate such as ethyl acetate or butyl acetate.
Biological air-treatment devices are divided into three main groups: bioscrubbers, biotrickling filters and biofilters (Kennes and Thalasso 1998).
Tri-Mer says this biofiltration-based VOC control alternative combines the best characteristics of an in-bed bioscrubber and aerobic digestion with the high removal efficiency of micron-scale mist scrubbing.
1995) have investigated the feasibility of a bioscrubber to cometabolically degrade TCE.
Deckwer, "Cometabolic Degradation of Trichloroethlene in a Bubble-Column Bioscrubber," Biotech.
For odor and VOC control applications, Envirogen products include modular and built-in-place systems for a wide range of air flow rates, as well as its BioTower bioscrubber technology for small-footprint applications.
Bioscrubber and biotrickling filters can also be used in conjunction with biofilters to provide two-stage treatment where extremely high efficiency removal is required.
The aerobic treatment process is conducted into two parallel streams that are washed through six bioscrubbers.
CHAPTER 7 ODOR CONTROL EQUIPMENT FOR WASTEWATER TREATMENT PLANTS 118 TYPES OF ODORS 119 SOURCES OF ODOR 119 ODOR MANAGEMENT AND CONTROL 121 EQUIPMENT USED FOR ODOR CONTROL 122 TABLE 19 SUMMARY OF COMMONLY USED ODOR CONTROL TECHNOLOGIES 123 PHYSICAL ODOR CONTROL EQUIPMENT 123 Activated Carbon 123 Ozone Generators 124 CHEMICAL ODOR CONTROL EQUIPMENT 125 Wet Scrubbers 125 Thermal Oxidation 126 BIOLOGICAL ODOR CONTROL EQUIPMENT 128 Biofilters 128 Biotrickling Filters 129 Bioscrubbers 129
We estimate that 10 to 20% of the municipal odour control market could use bioscrubbers and biotrickling filters as an alternative to biofilters, and we want to provide our customers with a range of technologies best suited to their needs.