含硫廢氣脫硫是從產(chǎn)生硫元素的氣體中去除硫化氫的生物工藝。吸收硫元素的生物溶液是一種碳酸氫鹽水溶液，系統(tǒng)中加入氫氧化鈉以維持堿度和PH值，同時在系統(tǒng)中添加營養(yǎng)物質(zhì)并補充水分。這種生物溶液中含有處理含硫的細菌，在初始啟動的時候只需要加一次就可以了。

Sulfur containing waste gas desulfurization is a biological process that removes hydrogen sulfide from the gas that produces sulfur elements. The biological solution that absorbs sulfur elements is a bicarbonate saline solution. Sodium hydroxide is added to the system to maintain alkalinity and pH value, while nutrients are added to the system and water is replenished. This biological solution contains bacteria that can handle sulfur, and only needs to be added once during the initial start-up.

生物溶液從生物反應(yīng)器中泵送到洗滌塔頂部，在接觸器中它被均勻的噴灑在洗滌塔的填料填充床上，確保生物溶液與含硫氣體之間適當?shù)慕佑|。通過洗滌塔內(nèi)發(fā)生的物理化學(xué)反應(yīng)，硫化氫以硫化物的形式溶解在生物溶液里，處理后的氣體向上流動到洗滌塔頂部的出口。

The biological solution is pumped from the bioreactor to the top of the washing tower, and it is evenly sprayed on the packing bed of the washing tower in the contactor, ensuring appropriate contact between the biological solution and sulfur-containing gas. Through the physical and chemical reactions occurring inside the washing tower, hydrogen sulfide dissolves in the form of sulfides in the biological solution, and the treated gas flows upwards to the outlet at the top of the washing tower.

在洗滌塔階段生物溶液中存在的硫細菌不參與反應(yīng)，僅僅是將氣體中的硫元素分離出來并聚集在洗滌塔的底部，然后再采用泵將底部富集硫化氫的液體輸送到生物反應(yīng)器里。紅外偵探儀會探測生物反應(yīng)器中硫化物的濃度，通過變頻的方式驅(qū)動控制一臺鼓風(fēng)機為細菌輸送合理的空氣量。

The sulfur bacteria present in the biological solution during the washing tower stage do not participate in the reaction. They simply separate the sulfur elements from the gas and aggregate them at the bottom of the washing tower. Then, a pump is used to transport the liquid enriched with hydrogen sulfide at the bottom to the bioreactor. The infrared detector will detect the concentration of sulfides in the bioreactor and drive a blower to deliver a reasonable amount of air to the bacteria through frequency conversion.

所產(chǎn)生的單質(zhì)硫是親水性的不會引起系統(tǒng)堵塞。通過硫的釋放洗滌液已經(jīng)被再生，將再次被泵送到洗滌塔的頂部進行新的處理循環(huán)。

The generated elemental sulfur is hydrophilic and will not cause system blockage. The washing solution has been regenerated through the release of sulfur and will be pumped back to the top of the washing tower for a new treatment cycle.

第三個階段也就是最后一個階段，部分洗滌液被分離出來并泵送到重力沉降器中，生物硫被濃縮10%至15%的單質(zhì)硫。"硫淤渣的脫水將采用離心機或壓濾機的形式進行渣水分離，沉降器溢流和分離后的濾液被重復(fù)使用。

In the third and final stage, a portion of the washing solution is separated and pumped into a gravity settler, where biological sulfur is concentrated at 10% to 15% elemental sulfur. The dehydration of sulfur sludge will be carried out in the form of a centrifuge or filter press for slag water separation, and the overflow of the settler and the separated filtrate will be reused.

生物硫以硫餅的形式產(chǎn)生，按重量計算硫的含量在55%到75%之間，因為有一小部分硫化物會被氧化成硫酸鹽，部分溶液需要流出因此需要補充補給水和氫氧化鈉，以確保電導(dǎo)率保持在一定范圍內(nèi)。生物過程中產(chǎn)生的生物硫構(gòu)成了許多非常有效的液體懸浮液濃縮物，它可以作為硫基殺菌劑或肥料硫組分。

Biological sulfur is produced in the form of sulfur cakes, with sulfur content ranging from 55% to 75% by weight. This is because a small portion of sulfides are oxidized into sulfates, and some solutions need to flow out. Therefore, supplementary water and sodium hydroxide are needed to ensure that the conductivity remains within a certain range. The biological sulfur generated during biological processes constitutes many highly effective liquid suspension concentrates, which can be used as sulfur based fungicides or fertilizer sulfur components.

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