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, etc., can solve the problems of unguaranteed air flow uniformity, difficult backwash operation, high pressure drop, etc., to achieve enhanced gas-liquid Mass transfer and biodegradability, small footprint, and reduced flow-through height

Inactive Publication Date: 2007-07-11
BEIJING UNIV OF TECH
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  • Abstract
  • Description
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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]The biological trickling filter device for treating volatile organic waste gas shown in Fig. 3 consists of an inlet pipe 1, a reactor main body 7, a nutrient solution automatic quantitative supply device 17, a nutrient solution drip distribution device 18, a liquid sealing device 5 and an exhaust pipe 9 composition. 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 main body 7, the horizontal centerlines of the three coincide, and the inlet pipe 1 passes through the gradually expanding air 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 area 22 and the tapered exhaust device 8. The air intake device 3 and the tapered exhaust device 8 are horizontally placed quadrangular prisms, the four sides of which are trapezoidal, and the angle ...

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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 dripping filter device and method for treating volatile organic waste gas, belonging to the field of volatile organic waste gas treatment. Background technique [0002] Volatile Organic Compounds (Volatile Organic Compounds, hereinafter referred to as VOCs are a large class of gaseous organic pollutants, mainly referring to organic compounds with a saturated vapor pressure greater than 70Pa at normal temperature and a boiling point less than 260°C at normal pressure. VOCs are various and distributed. Wide and highly toxic. VOCs exhaust gas comes from a wide range of sources, some of which come from large fixed sources (such as petrochemical, wastewater treatment facilities, pharmaceuticals, etc., leakage from valves and pumps, storage and transportation of low-boiling organic compounds, etc.; a large amount from vehicles, The exhaust gas emitted by electroplating, spray painting and the use of organic solvents has ...

Claims

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Application Information

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Patent Type & Authority Applications(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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