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溴离子对厌氧反应的影响及对策

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精对苯二甲酸装置共有两套PTA装置,生产能力为300万t,每小时生成约1 000 t污水,共有7台厌氧反应器,污水中含有机物、金属离子、高浓度钠离子和溴离子.厌氧反应器存在的问题是出口COD含量高,出口污泥含量高,水力负荷达不到设计值等.严重时影响污水装置排水质量及PTA主装置运行.通过优化厌氧反应器的温度、进料浓度、进口营养组成,未见效果.查阅有关资料,排除了铁、硫、镁、钾、镍、钴、锰等影响因素.在相关文献中也未查到溴对厌氧反应的影响.进行溴离子对厌氧反应影响工业试验,采用生化数学模型,应用MATLAB 2012B软件寻找厌氧反应器合适的参数,取得良好的试验效果.通过改变污水流程和进料溴含量及反应时间,厌氧反应器出水COD符合要求,污泥含量正常,厌氧反应器效率提高.
Impact of Bromine Ions on Anaerobic Reactions and Countermeasures
This device has two PTA units with a production capacity of 3 million tons,which generate about 1000 tons of wastewater per hour,and a total of seven anaerobic reactors,and wastewater contains organics,metal ions,high-concentration sodium ions and bromine ions.The problems existing in anaerobic reactors are high COD content at the outlet,high sludge content at the outlet and the inability to reach the design value of hydraulic load,which can affect the drainage quality of the sewage plant and the operation of the PTA main unit in severe cases.The temperature,feed concentration and inlet nutrient composition of anaerobic reactors were optimized,but no effect was observed.After consulting relevant information,influence factors such as iron,sulfur,magnesium,potas-sium,nickel,cobalt and manganese were excluded,and the effect of bromine on anaerobic reactions was not found in relevant literature.This paper conducts the industrial experiments of the impact of bromine ions on anaerobic reactions.It adopts a biochemical mathematical model and MATLAB software to search for suitable parameters for anaerobic reactors and achieves good experimental results.By changing the sewage process,feed bromine content and reaction time,the effluent COD of anaerobic reactors meets the requirements,sludge content is normal,and the efficiency of anaerobic reactors is improved.

Bromine ionAnaerobic reactorReaction rate constantEffect

陈华存

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汉邦(江阴)石化有限公司 江苏无锡 214446

溴离子 厌氧反应器 反应速度常数 效果

2024

科技资讯
北京国际科技服务中心 北京合作创新国际科技服务中心

科技资讯

影响因子:0.51
ISSN:1672-3791
年,卷(期):2024.22(3)
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