Bio-trickling device for processing volatile organic waste gas and method thereof

A volatile organic and biological trickling filtration technology, applied in separation methods, chemical instruments and methods, air quality improvement and other directions, can solve the problems of unguaranteed airflow uniformity, difficult backwash operation, pressure drop, etc., and achieve enhanced gas-liquid Mass transfer and biodegradability, small footprint, reduced flow-through height effects

Inactive Publication Date: 2008-11-12
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is actually equivalent to connecting several bio-trickling filter towers in series, the uniformity of airflow distribution in the device cannot be guaranteed, there are too many dead angles, it is not easy to remove the shedding biofilm in time, and problems such as blockage and high pressure drop are prone to occur , it is more difficult to backwash after clogging

Method used

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  • Bio-trickling device for processing volatile organic waste gas and method thereof
  • Bio-trickling device for processing volatile organic waste gas and method thereof
  • Bio-trickling device for processing volatile organic waste gas and method thereof

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Embodiment Construction

[0026] image 3 The shown biological trickling filter device for treating volatile organic waste gas is composed of an air inlet pipe 1, a reactor main body 7, a nutrient solution automatic quantitative supply device 17, a nutrient solution dripping and distributing device 18, a liquid sealing device 5, and an exhaust pipe 9. The overall appearance of the biological trickling filter device is horizontal. The inlet pipe 1 and the exhaust pipe 9 are respectively located on both sides of the reactor body 7, and the horizontal center lines of the three coincide. The inlet pipe 1 passes through the divergent inlet device 3 and the diversion area. 22 is connected to the reactor main body 7, and the exhaust pipe 9 is connected to the reactor main body 7 through the diversion zone 22 and the tapered exhaust device 8. The structure design is suitable for the treatment of atmospheric volatile organic waste gas, gradually expanding The air intake device 3 and the tapered exhaust device 8 are...

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Abstract

The invention relates to a biological drop filter and relative method for treating volatile organic waste gas, wherein it comprises that: feeding volatile organic waste gas into gas inlet tube (1) and main body (7) of reactor to be degraded and purified to be discharged from ventilate tube (9); the nutriment (11) enters into main body (7) via the nutriment distributor (18); the invention is characterized in that: the entrance of volatile organic waste gas is along the horizontal central line of main body 97); the nutriment (11) flows along the main body (7) from up to down, to form gas-liquid alternative contact in the main body (7). The invention can strengthen the biological degrade ability, with small area.

Description

Technical field [0001] The invention relates to a biological trickling filter device and method for processing volatile organic waste gas, belonging to the field of processing volatile organic waste gas. Background technique [0002] Volatile Organic Compounds (VOCs, hereinafter referred to as VOCs) are a large class of gaseous organic pollutants. They mainly refer to organic compounds that have a saturated vapor pressure greater than 70 Pa at normal temperature and a boiling point less than 260°C at normal pressure. There are many types of VOCs and their distribution Wide range and high toxicity. VOCs exhaust gas has a wide range of sources, some of which come from large fixed sources (such as petrochemicals, wastewater treatment facilities, pharmaceuticals, etc., leakage from valves and pumps, storage and transportation of low-boiling organic compounds, etc.; a large number of them come from transportation, The exhaust gas emitted by electroplating, painting, and the use of org...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/84
CPCY02A50/20
Inventor 李坚张书景金毓峑李依丽杨一鸣孙莉
Owner BEIJING UNIV OF TECH
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