1.脱硫工艺描述
1. Description of desulfurization process
我公司的生物脱硫技术分为三个单元：①脱硫洗涤单元 ②洗涤液生物再生（回用）单元 ③单质硫分离单元。工艺流程如下：
The biological desulfurization technology of our company is divided into three units: ① desulfurization washing unit ② biological regeneration (recycling) unit of washing liquid ③ sulfur separation unit of single substance. The process flow is as follows:
沼气生物脱硫
Biodesulfurization of biogas
单元 --脱硫洗涤 ：碱性的生物洗涤液从洗涤塔顶部喷出，与从洗涤塔底部进入的含硫化合物（主要H2S）气源逆流接触，由于再生生物洗涤液中含有连多硫酸盐类具有脱硫催化作用的物质，所以可以吸收H2S，并且脱除得非常干净。在集成脱硫工艺中，洗涤塔变成洗涤模块，可以任意叠加而达到需要的量和处理精度。
The first unit - desulfurization and washing: the alkaline biological washing liquid is sprayed from the top of the washing tower and is in countercurrent contact with the sulfur compound (mainly H2S) gas source entering from the bottom of the washing tower. Because the regenerated biological washing liquid contains substances with desulfurization catalysis such as polysulfates, it can efficiently absorb H2S and remove it very clean. In the integrated desulfurization process, the scrubber becomes a scrubber module, which can be arbitrarily superimposed to achieve the required amount and processing accuracy.
第二单元--生物再生反应器：含有硫化物的富液从洗涤塔底部流入生物再生反应器，通过脱硫微生物的处理，完成生物洗涤液再生并恢复碱性。再泵入单元洗涤部分，重复使用。
The second unit - biological regeneration reactor: the rich solution containing sulfide flows into the biological regeneration reactor from the bottom of the scrubber, and completes the regeneration of biological washing solution and recovers alkalinity through the treatment of desulfurization microorganisms. Then pump into the washing part of the first unit for reuse.
第三单元—单质硫分离：单质硫从单质硫分离池中以颗粒沉淀的方式分离出生物脱硫系统，分离后的清液回流去生物再生反应器。
The third unit - separation of elemental sulfur: elemental sulfur is separated from the biological desulfurization system by particle precipitation from the elemental sulfur separation tank, and the separated clear liquid is returned to the biological regeneration reactor.
2.工艺使用设备描述
2. Description of process equipment
(1) 洗涤塔
(1) Scrubber
由于生物碱性洗涤液的特性，洗涤塔的材质选择FRP（玻璃钢），洗涤塔的数量：1台；材质：FRP，内部填充填料、喷淋及除沫装置等。
Due to the characteristics of biological alkaline detergent, the material of the scrubber is FRP (glass fiber reinforced plastic), and the number of scrubbers is 1; Material: FRP, internal filling, spray and demister, etc.
(2) 再生反应器
(2) Regeneration reactor
在洗涤塔内吸收完成硫化氢后的洗涤液在生物再生反应器内，通过控制氧化过程，将吸收的硫化氢转变成单质硫。
After the absorption of hydrogen sulfide in the scrubber, the scrubbing liquid will be converted into elemental sulfur in the biological regeneration reactor by controlling the oxidation process.
(3) 板式换热器
(3) Plate heat exchanger
由于气候变化以及生物代谢能的释放，生物再生反应器内的温度可能会超出菌的承受温度，需使用板式换热器进行冷却，冷却水可使用循环水。
Due to climate change and the release of biological metabolic energy, the temperature in the biological regeneration reactor may exceed the bearing temperature of the bacteria, so the plate heat exchanger shall be used for cooling, and the cooling water can be recycled water.
(4) 沉淀器
(4) Precipitator
沉淀器的作用就是分离硫元素，利于洗涤液的硫平衡。硫污泥将直接由硫污泥泵直接排好氧池或废水池。
The function of the precipitator is to separate the sulfur element, which is beneficial to the sulfur balance of the washing solution. The sulfur sludge will be directly discharged from the sulfur sludge pump to the aerobic tank or waste water tank.
(5) 洗涤泵
(5) Washing pump
用于生物洗涤液的循环喷淋泵，1用1备，共2台.
There are two circulating spray pumps for biological detergent, one for use and one for standby
(6) 鼓风机
(6) Blower
作用是提供生物再生所需要的氧气，采用变频控制，1用1备，2台
The function is to provide oxygen required for biological regeneration, with frequency conversion control, one for use and one for standby, and two sets
(7) 其他
(7) Others
With the summary of biological desulfurization, I hope it can help our customers. If you have any questions or need help, please click our website: https://www.hneee.net Or call for consultation, and we will do our best to solve it for you
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2023-03-07
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