pp噴淋廢氣凈化塔常用的凈化方法

Common purification methods of PP spray waste gas purification tower

pp噴淋廢氣凈化塔是什么產(chǎn)品？可能很多人不是很了解，下面脫硫pp噴淋廢氣凈化塔廠家小編為***家介紹一下。

What is the product of PP spray waste gas purification tower? Maybe many people don't know it very well. Here's a brief introduction of desulfurization PP spray waste gas purification tower manufacturer.

(1)吸收法

(1) absorption method

吸收凈化法是廢氣治理中一種重要的常用的方法，它是利用廢氣中各混合組分在選定的吸收劑中溶解度的不同，或其中一種或多種組分與吸收劑中活性組分結(jié)合，將有害物從廢氣中分離出來、凈化廢氣目的的一種方法。

Absorption purification is an important and commonly used method in waste gas treatment. It is a method to separate harmful substances from waste gas and purify waste gas by using the different solubility of each mixed component in the selected absorbent, or the combination of one or more components and the active component in the absorbent.

吸收法使用的吸收設(shè)備主要有噴淋洗滌器、泡沫洗滌器、文氏管洗滌器等。吸收法的工藝流程和濕法除塵工藝近似，只是濕法除塵工藝用清水，而吸收法凈化有害氣體要用溶劑或吸收溶液。

The absorption equipment used mainly includes spray scrubber, foam scrubber, venturi scrubber and so on. The absorption process is similar to the wet dedusting process, except that the wet dedusting process uses clear water, while the absorption process uses solvent or absorption solution to purify harmful gases.

吸收法的***點是幾乎可以處理各種有害氣體，適用范圍很廣，并可回收有價值的產(chǎn)品。缺點是工藝比較復(fù)雜，吸收效率有時不高，吸收液需要再次處理，否則會造成廢水的污染。

The advantage of absorption method is that it can deal with almost all kinds of harmful gases, has a wide range of application, and can recover valuable products. The disadvantage is that the process is relatively complex, sometimes the absorption efficiency is not high, and the absorption solution needs to be treated again, otherwise it will cause waste water pollution.

(2)活性炭吸附法

(2) activated carbon adsorption

吸附是一種固體表面現(xiàn)象，是活性炭吸附塔利用多孔性固體吸附劑處理的氣態(tài)污染物，使其中的一種或幾種組分，在分子引力或化學(xué)鍵力的作用下，被吸附在固體表面，從而達到分離的目的。其中應(yīng)用為廣泛的是活性炭。

Adsorption is a kind of solid surface phenomenon. It is a gaseous pollutant treated by porous solid adsorbent in activated carbon adsorption tower. One or several components are adsorbed on the solid surface under the action of molecular gravity or chemical bond force, so as to achieve the purpose of separation. Among them, activated carbon is widely used.

活性炭對對苯、甲苯、二甲苯、乙醇、煤油、汽油、苯乙烯、氯乙烯等物質(zhì)都有吸附功能?；钚蕴績艋b置具有較高的效率，但活性炭吸附到   量時會達到飽和，      或   換活性炭，因此運行成本較高。活性炭吸附設(shè)備常用于低濃度廢氣和脫臭的后處理。

Activated carbon has adsorption function for benzene, toluene, xylene, ethanol, kerosene, gasoline, styrene, vinyl chloride and other substances. The activated carbon purification device has high efficiency, but when the amount of activated carbon is absorbed, it will reach saturation, or change the activated carbon, so the operation cost is high. Activated carbon adsorption equipment is often used in the post-treatment of low concentration waste gas and deodorization.

(3)生物除臭法

(3) biological deodorization

生物除臭法是通過微生物的生理代謝將具有臭味的物質(zhì)加以轉(zhuǎn)化，達到除臭的目的。目前   污水處理廠和污水泵房采用生物法處理廢氣的方法主要有土壤脫臭法、生物濾池法和生物滴濾塔等，治理效果較***。

Biological deodorization is to transform the substances with odor through the physiological metabolism of microorganisms, so as to achieve the purpose of deodorization. At present, the methods of biological treatment of waste gas in sewage treatment plant and sewage pump house mainly include soil deodorization, biological filter and biological trickling filter, etc. the treatment effect is good.

(4)低溫等離子體技術(shù)

(4) low temperature plasma technology

等離子體是繼固態(tài)、液態(tài)、氣態(tài)之后的物質(zhì)***四態(tài)，當外加電壓達到氣體的放電電壓時，氣體被擊穿，產(chǎn)生包括電子、各種離子、原子和自由基在內(nèi)的混合體。放電過程中雖然電子溫度很高，但重粒子溫度很低，整個體系呈現(xiàn)低溫狀態(tài)，所以稱為低溫等離子體。低溫等離子體降解污染物是利用這些   電子、自由基等活性粒子和廢氣中的污染物作用，使污染物分子在短時間內(nèi)發(fā)生分解等離子體去除污染物。該方法具有處理效果***，運行費用低廉、無二次污染、運行穩(wěn)定、操作管理簡便、即開即用等***點。

Plasma is the fourth state of matter after solid, liquid and gas. When the applied voltage reaches the discharge voltage of gas, the gas is broken down and a mixture of electrons, various ions, atoms and free radicals is produced. Although the electron temperature is very high, the temperature of heavy particles is very low, and the whole system presents a low temperature state, so it is called low temperature plasma. The degradation of pollutants by low-temperature plasma is to use these active particles such as electrons and free radicals and the pollutants in the exhaust gas to decompose the pollutants in a short time. The method has the advantages of good treatment effect, low operation cost, no secondary pollution, stable operation, simple operation and management, ready to use and so on.

pp噴淋廢氣凈化塔常用的凈化方法

Common purification methods of PP spray waste gas purification tower

(5)紫外光(UV)催化氧化

(5) ultraviolet (UV) catalytic oxidation

廢氣的UV光催化氧化裝置處理機理包括兩個過程：一是在產(chǎn)生   離子群體的過程中，   數(shù)量的有害氣體分子受   作用，本身分解成單質(zhì)或轉(zhuǎn)化為無害物質(zhì)。二是含有***量   粒子和高活性的自由基的離子群體，與分子氣體(如H2S、甲苯等)作用，打開了其分子內(nèi)部的化學(xué)鍵，轉(zhuǎn)化為無害物質(zhì)。新生態(tài)的氧離子具有很強的氧化性，能有效地氧化分解不受負離子作用控制的有機物。與廢氣反應(yīng)后多余的氧離子(正)，能與氧離子(負)很快結(jié)合成中性氧。

The treatment mechanism of UV photocatalytic oxidation device for waste gas includes two processes: one is that in the process of generating ion groups, a number of harmful gas molecules are affected, and they are decomposed into simple substances or transformed into harmless substances. Second, the ion group containing a large number of particles and highly active free radicals, interacts with molecular gases (such as H2S, toluene, etc.), opens the chemical bond inside its molecules, and transforms into harmless substances. The new ecological oxygen ions have strong oxidizability, which can effectively oxidize and decompose the organic matters not controlled by the negative ions. After reacting with the waste gas, the excess oxygen ions (positive) can quickly combine with oxygen ions (negative) to form neutral oxygen.

紫外光催化是常溫深度反應(yīng)技術(shù)。光催化氧化設(shè)備可在室溫下將水、空氣和土壤中有機污染物氧化成   無害的產(chǎn)物。

UV catalysis is a deep reaction technology at room temperature. Photocatalytic oxidation equipment can oxidize organic pollutants in water, air and soil into harmless products at room temperature.

(6)RTO(RegenerativeThermalOxidizer，簡稱RTO)

(6) RTO (regenerative hermaloxidizer)

RTO即   熱氧化分解器，又稱蓄熱式焚燒器。其基本原理實在高溫下(≥760℃)將有機廢氣氧化生成CO2和H2O，從而凈化廢氣，并回收分解時所釋出的熱量，以達到環(huán)保節(jié)能的雙重目的。RTO是一種用于處理中高濃度揮發(fā)性有機廢氣的節(jié)能型環(huán)保裝置。RTO主體結(jié)構(gòu)由燃燒室、陶瓷填料床和切換閥等組成。該裝置中的蓄熱式陶瓷填充床換熱器可使熱能***限度的回收，熱回收率***于95%，處理VOC時不用或使用很少的燃料。若處理低濃度廢氣，可選裝濃縮裝置，以降低燃燒消耗。

RTO is a thermal oxidation decomposer, also known as a regenerative incinerator. Its basic principle is to oxidize the organic waste gas to CO2 and H2O at high temperature (≥ 760 ℃), so as to purify the waste gas and recover the heat released during decomposition, so as to achieve the dual purpose of environmental protection and energy saving. RTO is a kind of energy-saving environmental protection device which is used to treat middle and high concentration VOC waste gas. The main structure of RTO is composed of combustion chamber, ceramic packing bed and switch valve. The regenerative ceramic packed bed heat exchanger in the device can recover the heat energy to a large extent, and the heat recovery rate is more than 95%. There is little or no fuel used in VOC treatment. If low concentration waste gas is treated, concentration device can be selected to reduce combustion consumption.

RTO處理技術(shù)適用于有機廢氣、涂裝廢氣、惡臭廢氣等廢氣凈化處理；適用于廢氣成分經(jīng)常發(fā)生變化或廢氣中含有使催化劑中毒或活性衰退的成分(如水銀，錫，鋅等的金屬蒸汽和磷、磷化物，砷等，容易使催化劑失去活性；含鹵素和***量的水蒸氣的情形)，含有鹵素碳氫化合物及其它具有腐蝕性的有機氣體。

RTO treatment technology is applicable to the purification of organic waste gas, coating waste gas, odor waste gas and other waste gas; it is applicable to the situation that the components of waste gas often change or the waste gas contains components (such as mercury, tin, zinc and other metal vapor, phosphorus, phosphide, arsenic, etc.) that make the catalyst toxic or activity decline, and it is easy to make the catalyst inactive; it contains halogen and a large amount of water vapor, containing halogen Hydrocarbons and other corrosive organic gases.

廢氣pp噴淋廢氣凈化塔凈化率高，凈化率一般在98%以上?？蓪崿F(xiàn)全自動化控制，操作簡單，運行穩(wěn)定，   可靠性高。蓄熱室內(nèi)溫度均勻分級增加，加強了爐內(nèi)傳熱，換熱效果   佳，爐膛容積小，降低了設(shè)備的造價。采用分級燃燒技術(shù)，延緩狀燃燒下釋出熱能；爐內(nèi)升溫勻，燒

The purification rate of waste gas PP spray waste gas purification tower is high, and the purification rate is generally above 98%. It can realize full automatic control, simple operation, stable operation and high reliability. The temperature in the regenerator increases uniformly and hierarchically, which strengthens the heat transfer in the furnace, has good heat exchange effect, small furnace volume and reduces the cost of equipment. Adopt staged combustion technology to release heat energy under delayed combustion; raise the temperature in the furnace evenly and burn