TW201023965A - Soot extraction and biological treatment method and apparatus - Google Patents

Abstract

The present invention is a soot extraction and biological treatment method, particularly referring to lead soot and exhaust gas to an extraction unit and wash with a detergent of non-ionic surfactant. By using the detergent to wash soot and exhaust gas and effectively emulsify soot and exhaust gas to produce wastewater containing emulsified oil, the emulsified oil in the wastewater is next degraded into carbon dioxide and water solution using oil splitting bacteria. The degraded water solution is then directed to the extraction unit and mixed with detergent for continuously washing soot and exhaust gas. As such, it forms a repeated circulatory system, making oil degradation rate over 99%.

Description

201023965 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a soot treatment device, and more particularly, to an emulsified oil which can effectively decompose waste water and form a reverse circulation system. [Prior Art] Since the era of human artificial technology, the standard of living has generally improved, and in order to enable the next generation to have a better quality of life, environmental awareness has gradually risen. Many catering companies in the market are required to engage in spring conditioning work such as cooking, frying, and even frying. The oil is prone to generate fumes after high temperature or repeated use. 'At least one thousand of the public grievances related to stench every year. A lot of them, 43% of them are related to the smog emissions of the catering industry. The resulting pollution and wastewater problems have a considerable impact on the environment. Therefore, most operators will install range hoods to directly pump the fumes into the outdoor atmosphere. The air pollution in the nearby environment is quite serious. Some operators direct the smoke from the kitchen range hood directly into the sewer. Although it does not directly affect the air quality of the surrounding environment, after a certain period of time, it will cause Lu. The problem of sewer oil pollution will not only cause sewer blockage, but also affect drainage function, and even cause water pollution, causing another environmental pollution problem. SUMMARY OF THE INVENTION The main object of the present invention is to achieve the purpose of completely removing the soot exhaust gas and the oil droplet waste water by mixing the detergent with the hetero-type interface and the oil-decomposing bacteria. In order to achieve the above object, the present invention utilizes a non-ionic surfactant-based detergent to wash the soot exhaust gas to effectively emulsifie the soot exhaust gas and generate an emulsified oil-containing wastewater, and then use a grease decomposition bacteria to treat the wastewater. The emulsified oil is degraded into carbon dioxide and water. 3 201023965 The degraded aqueous solution is mixed with the detergent and repeated to continue washing the oily gas. Accordingly, the present invention can repeatedly wash the soot exhaust gas to achieve the purpose of completely removing the soot exhaust gas and the oil droplet waste water. [Embodiment] First, please refer to the "Figure 1", which is the soot extraction and biological device of the present invention, which is mainly composed of a soot extraction device 10 and a biological treatment device 20, which is composed of the soot extraction device 10 There is an extraction unit U, which is in the shape of a tower, and is provided with an atomization unit 110, a soot inlet m, a water control port 112 and an evacuation pump unit 12 above and below, and The extraction unit u is internally filled with at least one blade type double cross ring mixed sand net as a filling filter material (not shown). The biological treatment device 20 is provided with a biological decomposition unit 21, a reflux pump unit 22, a discharge cleaning port 23 and a plurality of biological carriers (not shown), and the biological decomposition unit 21 is provided with an appropriate amount of non-ionic interface activity. Detergent and oil decomposing bacteria. When used, it is mainly divided into two major steps: ❹ Step A is a soot exhaust gas washing program: the soot exhaust gas mainly passes through the soot inlet U1 and is pumped into the extraction unit 11 by the pumping pump unit 12, with the The reflux pump unit 22 charges the biodegradable unit 21 with a nonionic surfactant (for example, nonylphenol polyethoxylated alcohol compound (NPnE0), polyethylene glycol octylphenyl hydrazine (Triton-X), ten The detergent of the second burnt octaethylene glycol group (CH3(CH2)ll(〇CH2CH2)80H) is introduced into the extraction unit 11 'by the detergent agent, the smog exhaust gas can be effectively emulsified and the emulsification effect is enhanced, and 4 is produced. 201023965 Waste water after washing; the extraction unit 1丨 is filled with a blade type double cross ring mixed sand net as a filler, and the detergent of the nonionic surfactant is passed before being introduced into the extraction unit 11 After the atomization unit 110 is formed into a mist shape, the soot exhaust gas is sprayed by atomization, so that the washing effect is better. Step B is a wastewater degradation process: the waste water of the soot exhaust gas is passed through the water outlet control port. 112 flows to the student The effluent decomposition unit 21, and the wastewater is emulsified by the detergent, and the emulsified oil can be used as the oil-decomposing bacteria of the biodegradable unit 21, and the oil can be decomposed into Pseudomonas. (pseudomonas) (such as Pseudomonas aeruginosa) is the main carbon source, and the several bio-carriers help the strain to grow and attach, and the emulsified oil of the wastewater is degraded into carbon dioxide and aqueous solution through the oil-decomposing bacteria to achieve complete removal. The effect of the soot, and the aqueous solution degraded by the oil-decomposing bacteria is further guided into the extraction unit U by the reflux pump unit 22 to be mixed with the washing agent to continue washing the soot exhaust gas, thereby forming a reverse circulation system. The oil degradation rate can be maintained above 99%. In addition, it is worth mentioning that the emulsified oil of the wastewater can only provide the carbon source for the growth of the oil-decomposing bacteria in the biological decomposition unit 21, and cannot maintain the activity of the strain for a long time, so it is timely Adding trace elements (such as magnesium ions, zinc ions, iron ions, calcium ions, sodium ions) required for the growth of the oil-decomposing bacteria to maintain the biological decomposition unit 21 In order to prevent the biofilm from being excessively thick and odorous due to excessive growth of the strain on the biological carrier, the organism in the material decomposition unit 21 can be replaced and cleaned by discharging the cleaning port 23 at the same time. The present invention utilizes a detergent of a nonionic surfactant to promote the washing efficiency of the soot exhaust gas and to control the concentration of the detergent below 〇·1 volume percent (v〇1%), which does not affect the oil-decomposing bacteria. The growth can further promote the emulsification effect of the oil fume exhaust gas, so that the oil is more easily decomposed by microorganisms, and the gas-liquid ratio of the fume exhaust gas and the stripping agent is controlled at 1.3, and the retention time is 264 seconds. ), its fume emulsification efficiency can be as high as 98%. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the practice of the present invention. That is, the equivalent variations and modifications made by the scope of the present invention are covered by the scope of the invention. 201023965 • [Simplified description of the drawings] Fig. 1 is a schematic view showing the structure of a soot extraction and biological treatment device of the present invention. [Main component symbol description] 10: Soot extraction device 11: Extraction unit 110: Atomization unit 111: Oil smoke inlet 112: Water outlet control port 12: Exhaust pump unit 20: Biological treatment device 21: Biodegradation unit 22: Return pump unit 23: discharge cleaning port

Claims (1)

201023965 VII. Scope of Application for Patent·························································································· The emulsified oil of the wastewater is degraded into carbon dioxide and an aqueous solution by a decomposing bacteria, and the degraded aqueous solution is further mixed into the detergent to continue to wash the exhaust fumes. 2. The method for extracting and biologically treating soot according to claim 1, wherein the detergent of the nonionic surfactant is selected from the group consisting of nonylphenol polyethoxy β alcohol compounds and polyethylene glycol octane. Any of a phenyl ether and a dodecane octaethylene group. 3. The method for extracting and biologically treating soot according to claim 1, wherein the oil-decomposing bacteria is a pseudomonas. 4, a soot extraction and biological treatment device, which is mainly composed of a fume extraction device and a biological treatment device, the soot extraction device and the biological treatment device are provided with an extraction unit and a biological decomposition unit, and the a non-ionic surfactant detergent and an oil-decomposing bacteria are disposed in the biodegrading unit, and the extraction single-ring is used for introducing a soot exhaust gas and the non-ionic surfactant detergent to wash the soot exhaust gas and effectively emulsify Producing waste water containing emulsified oil, the biodegradation unit is configured to introduce the emulsified oil-containing wastewater, and decompose the emulsified oil of the wastewater into carbon dioxide and an aqueous solution by the oil-decomposing bacteria in the biodegradation unit' The aqueous solution is then directed into the extraction unit to mix with the detergent to continue scrubbing the soot off-gas. 5. The fume extraction and biological treatment device according to item 4 of the patent application scope, 8 201023965 wherein the extraction unit is in the form of a tower, and is provided with a soot inlet and a pumping pump unit to pass through the soot inlet. The port and the pumping pump unit draw the soot exhaust gas into the extraction unit. 6. The soot extraction and biological treatment device of claim 4, wherein the extraction unit is internally filled with at least one blade type double cross ring mixed sand net as a filling filter. 7. The fume extraction and biological treatment device according to claim 4, wherein the extraction unit is provided with an atomization unit, and the detergent is introduced into the extraction unit, and after the atomization unit forms a mist, The soot exhaust gas is washed by atomization. 8. The soot extraction and biological treatment device of claim 4, wherein the extraction unit is provided with a water outlet control port for guiding the wastewater into the biological decomposition unit. 9. For example, the fume extraction in the fourth paragraph of the patent application scope includes the treatment of Lai Ji, the decomposition of the Qiuzhai substance, the non-sinter surfactant and the aqueous solution after degradation by the oil-decomposing bacteria. Lead to the extraction unit. Its t mi touches 4 Wei Weiqing 4 material processing device, Γ 财 财 纠 纠 鲥 鲥 提 提 提 提 提 提 提 提 提 提 提 提 提 提 提 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 There is a thief cleaning port. The invention relates to a soot extraction and biological treatment device according to claim 4, wherein the nonionic surfactant is selected from the group consisting of wet nonylphenol polyethoxylated alcohol compounds and polyethylene glycol octyl groups. Any of phenyl ether and dodecane octaethylene glycol. 13. The soot extraction and biological treatment device according to claim 4, wherein the oil-decomposing bacteria is a pseudomonas. 14. The soot extraction and biological treatment device of claim 4, wherein the Pseudomonas is Pseudomonas aeruginosa.