工廠廢氣處理工藝可以選擇哪些?
1. Masking method
原則:用更強(qiáng)烈的香氣和氣味來掩蓋惡臭,這樣才能被接受。
Principle: cover up the stench with a stronger aroma and odor so that it can be accepted.
適用范圍:適用于需要立即、臨時(shí)消除低濃度惡臭氣體影響的場合。臭氣濃度約為2.5,無組織排放源為無組織排放源。
Scope of application: it is suitable for the occasions that need to eliminate the influence of low concentration odor gas immediately and temporarily. The odor concentration is about 2.5, and the unorganized emission source is the unorganized emission source.
優(yōu)點(diǎn):能盡快消除惡臭效應(yīng),靈活性大,成本低。
Advantages: it can eliminate odor effect as soon as possible, with high flexibility and low cost.
缺點(diǎn):臭味成分沒有去除。
Disadvantages: odor components are not removed.
2.稀釋擴(kuò)散法
2. Dilution diffusion method
原則:通過煙囪排出有臭味的氣體,或用無臭空氣稀釋它們,以降低氣味濃度。
Principle: exhaust odorous gases through chimney or dilute them with odorless air to reduce odor concentration.
適用范圍:適用于處理組織排放的中、低濃度惡臭氣體。
Scope of application: it is applicable to the treatment of medium and low concentration malodorous gas emitted by organizations.
優(yōu)點(diǎn):成本低,設(shè)備簡單。
Advantages: low cost, simple equipment.
缺點(diǎn):易受氣象條件影響,氣味物質(zhì)仍然存在。
Disadvantages: still susceptible to meteorological conditions.
3.熱力燃燒法與催化燃燒法
3. Thermal combustion method and catalytic combustion method
原理:惡臭物質(zhì)在高溫下與燃?xì)獬浞只旌?,?shí)現(xiàn)完全燃燒。
Principle: the odor substance is fully mixed with gas at high temperature to realize complete combustion.
適用范圍:適用于高濃度、少量可燃?xì)怏w的處理。
Scope of application: suitable for the treatment of high concentration and small amount of combustible gas.
優(yōu)點(diǎn):提純效率高,氣味物質(zhì)完全氧化分解。
Advantages: high purification efficiency, complete oxidation and decomposition of odorants.
缺點(diǎn):該設(shè)備易腐蝕,耗油,處理成本高,易形成二次污染。
Disadvantages: the equipment is easy to corrosion, oil consumption, high treatment cost and easy to form secondary pollution.
4.水吸收法
4. Water absorption method
原理:利用氣味中的一些物質(zhì)溶于水的特性,使氣味成分與水直接接觸,使臭氣成分溶解于水中達(dá)到除臭的目的。
Principle: make use of the characteristics of some substances in the odor dissolved in water, make the odor components directly contact with the water, and dissolve the odor components in the water to achieve the purpose of deodorization.
適用范圍:水溶性、有組織的惡臭氣體排放源。
Scope of application: water soluble and organized odor emission source.
優(yōu)點(diǎn):工藝簡單,管理方便,設(shè)備運(yùn)行成本低,產(chǎn)生二次污染,需要對洗滌液進(jìn)行處理。
Advantages: the process is simple, the management is convenient, the operation cost of the equipment is low, and the secondary pollution is produced, so the washing liquid needs to be treated.
缺點(diǎn):凈化效率低,應(yīng)與其他技術(shù)相結(jié)合,硫醇、脂肪酸等處理效果差。
Disadvantages: low purification efficiency, should be combined with other technologies, mercaptan, fatty acid treatment effect is poor.
5.藥液吸收法
5. Liquid absorption method
原理:利用某些物質(zhì)和藥物溶液在惡臭中的化學(xué)反應(yīng)特性去除一些氣味成分。
Principle: using the chemical reaction characteristics of some substances and drug solutions in the odor to remove some odor components.
適用范圍:適用于高、中濃度氣味的處理。
Scope of application: suitable for high and medium concentration odor treatment.
優(yōu)點(diǎn):可以有針對性地處理一些氣味成分,工藝比較成熟。
Advantages: it can be targeted to deal with some odor components, and the process is relatively mature.
缺點(diǎn):凈化效率低,吸附劑消耗大,易形成,二次污染。
Disadvantages: low purification efficiency, high adsorbent consumption, easy formation and secondary pollution.